ORTHOD-L Digest 692 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) text for front desk staff by Mary K Barkley <mkb@mediaone.net> 3) American Journal of Orthodontics and Dentofacial Orthopedics April 2000, Vol. 117, No. 4 by "Harcourt Health Sciences eTOC Service" <periodicals.web@mosby.com> 4) Re: ORTHOD-L digest 691 by OrthoSheff@aol.com 5) RE: Substituting maxillary laterals for avulsed centrals: reprise by "Ross Hobson" <R.S.Hobson@ncl.ac.uk> 6) RE: Agenesis mandibular 5s by "Ross Hobson" <R.S.Hobson@ncl.ac.uk>
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Thu, 13 Apr 2000 18:26:47 -0700
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. ESCO is moderated by Dr. Joseph Zernik from the University of Southern California Department of Orthodontics. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 2
Subject: text for front desk staff
Date: Mon, 10 Apr 2000 17:29:13 -0400
From: Mary K Barkley <mkb@mediaone.net>
To: orthod-l@usc.edu
I am looking for a textbook for front desk orthodontic staff who have no orthodontic experience. Ideally, the book would cover dental nomenclature and orthodontic numbering, an overview of orthodontic appliances, and a discussion of orthodontic records. Is anyone aware of such a text? Mary K. Barkley Chelsea, MI
Subject: American Journal of Orthodontics and Dentofacial Orthopedics April
2000, Vol. 117, No. 4
Date: Tue, 11 Apr 2000 09:52:59 -0500
From: "Harcourt Health Sciences eTOC Service" <periodicals.web@mosby.com>
To: ajodo_toc@mosby.com
American Journal of Orthodontics and Dentofacial Orthopedics Table of Contents for April 2000, Vol. 117, No. 4 http://www.mosby.com/ajodo -------------------------------------------------------------- ORIGINAL ARTICLES Clinical applications of composite intramembranous bone grafts A. Bakr M. Rabie, BDS, CertOrtho, MS, PhD, Siew Han Chay, BDS Hong Kong, SAR http://www1.mosby.com/scripts/om.dll/serve?article=a104904 Muscle activity with the mandibular lip bumper Arndt Klocke, Drmeddent, MS, Ram S. Nanda, DDS, MS, PhD, Joydeep Ghosh, DDS Hamburg, Germany, MS, Oklahoma City, Okla, and Dallas, Tex http://www1.mosby.com/scripts/om.dll/serve?article=a104688 Rapid orthodontic tooth movement into newly distracted bone after mandibular distraction osteogenesis in a canine model Eric Jein-Wein Liou, DDS, MS, Alvaro A. Figueroa, DDS, MS, John W. Polley, MD Taipei, Taiwan, and Chicago, Ill http://www1.mosby.com/scripts/om.dll/serve?article=a101439 Alveolar bone resorption and the center of resistance modification (3-D analysis by means of the finite element method) Allahyar Geramy, DDS, MS Shiraz, Iran http://www1.mosby.com/scripts/om.dll/serve?article=a104689 Relationship of natural head position to craniofacial morphology Pedro Leitao, DMD, MS, PhD, Ram S. Nanda, DDS, MS, PhD Lisbon, Portugal, and Oklahoma City, Okla http://www1.mosby.com/scripts/om.dll/serve?article=a102547 SPECIAL ARTICLE For four sixes Paul Jonathan Sandler, BDS(Hons), MSc, FDSRCPS, DOrth, MOrth, Robert Atkinson, BDS(Hons), LDSRCS, FDSRCS, Alison Margaret Murray, BDS, MSc, FDSRCPS, DOrth, MOrth Chesterfield, UK http://www1.mosby.com/scripts/om.dll/serve?article=a97617 SHORT COMMUNICATION Useful data from application of the HLD (CalMod) INDEX William S. Parker, DMD, PhD Sacramento, Calif http://www1.mosby.com/scripts/om.dll/serve?article=a105878 ORIGINAL ARTICLE Shear bond strengths of orthodontic plastic brackets Guoqiang Guan, DDS, PhD, Teruko Takano-Yamamoto, DDS, PhD, Manabu Miyamoto, DDS, PhD, Tetsuo Hattori, DDS, PhD, Kunio Ishikawa, PhD, Kazuomi Suzuki, PhD Okayama, Japan http://www1.mosby.com/scripts/om.dll/serve?article=a103255 SPECIAL ARTICLE Angle, the innovator, mechanical genius, and clinician Claude Matasa, DCE, DSc, T. M. Graber, DMD, MSD, PhD Hollywood, Fla, and Chicago, Ill http://www1.mosby.com/scripts/om.dll/serve?article=a106503 ABO CASE REPORTS Treatment of a patient with a Class I malocclusion with bialveolar protrusion, mild upper and lower crowding, and mild mandibular prognathism Roberto Hernandez Orsini, DMD, MPH, MS Guaynabo, Puerto Rico http://www1.mosby.com/scripts/om.dll/serve?article=a90184 Treatment of a Class II, Division 1, malocclusion with the extraction of maxillary canines and mandibular first premolars Raphael T. Schach, DDS, MS San Antonio, Texas http://www1.mosby.com/scripts/om.dll/serve?article=a93942 CONTINUING EDUCATION ARTICLES A histologic and histomorphometric evaluation of pulpal reactions following rapid palatal expansion Fulya Kayhan, DDS, PhD, Nazan Kkkeles, DDS, PhD, Dilaver Demirel, DDS, PhD Istanbul, Turkey http://www1.mosby.com/scripts/om.dll/serve?article=a103253 Basal nitric oxide production is enhanced by hydraulic pressure in cultured human periodontal ligament fibroblasts Chie Nakago-Matsuo, DDS, PhD, Toshihiko Matsuo, MD, PhD, Tadao Nakago, DDS, PhD Okayama City, Japan http://www1.mosby.com/scripts/om.dll/serve?article=a105576 Cephalometric comparisons between Chinese and Caucasian patients with obstructive sleep apnea Yuehua Liu, Alan A. Lowe, Xianglong Zeng, Minkui Fu, John A. Fleetham Vancouver, BC, Canada, and Beijing, China http://www1.mosby.com/scripts/om.dll/serve?article=a102546 Vertical components of overbite change: A mathematical model Siegfried A. Naumann, DDS, MS, Rolf G. Behrents, DDS, PhD, Peter H. Buschang, MA, PhD Dallas, Tex http://www1.mosby.com/scripts/om.dll/serve?article=a103278 Continuing Education Questionnaire http://www1.mosby.com/scripts/om.dll/serve?article=jod001174ce IN MEMORIAM Lester Levern Merrifield, 1921-2000 http://www1.mosby.com/scripts/om.dll/serve?article=aod1174498 Maurice Samuel Berman, 1914-1999 http://www1.mosby.com/scripts/om.dll/serve?article=aod1174500 Stanley Jacobs, 1939-2000 http://www1.mosby.com/scripts/om.dll/serve?article=aod1174501 VIGNETTE Bernard Wolf Weinberger Norman Wahl http://www1.mosby.com/scripts/om.dll/serve?article=aod1174502 ORTHO BYTES Computer voice recognition Ron Powers http://www1.mosby.com/scripts/om.dll/serve?article=aod1174504 LITIGATION, LEGISLATION, AND ETHICS Self-incrimination in the civil arena Laurance Jerrold, DDS, JD http://www1.mosby.com/scripts/om.dll/serve?article=aod1174507 DEPARTMENT OF REVIEWS AND ABSTRACTS Contemporary Orthodontics, 3rd edition William R. Proffit, Harry W. Fields, Jr DIRECTORY: AAO OFFICERS AND ORGANIZATIONS The American Association of Orthodontists, its constituent societies, the American Board of Orthodontists, the American Association of Orthodontists Foundation Board of Directors, and the College of Diplomates of the American Board of Orthodontics http://www1.mosby.com/scripts/om.dll/serve?article=jod001174da NEWS, COMMENTS, AND SERVICE ANNOUNCEMENTS News of dentistry and orthodontics http://www1.mosby.com/scripts/om.dll/serve?article=jod001174nw READERS FORUM Make no apologies Roy K. King, PA http://www1.mosby.com/scripts/om.dll/serve?article=aod117423a001 Revisiting root resorption Inger Kjr, Dr Odont, Dr Med http://www1.mosby.com/scripts/om.dll/serve?article=aod117423a002 Its all in the details Chuck Mertz http://www1.mosby.com/scripts/om.dll/serve?article=aod117423a003 In response: A. J. Feilzer, DDS, PhD, W. L. van Waveren, DDS, B. Prahl-Andersen, DDA, PhD http://www1.mosby.com/scripts/om.dll/serve?article=aod117424a001 Another Ricketts contribution Arthur S. Quint http://www1.mosby.com/scripts/om.dll/serve?article=aod117424a002 Muscle response to the Twin-block appliance M. J. Trenouth http://www1.mosby.com/scripts/om.dll/serve?article=aod117425a001 Follow-up on distraction osteogenesis in the mandible Arthur S. Quint http://www1.mosby.com/scripts/om.dll/serve?article=aod117425a002 READERS SERVICES Editorial Board http://www1.mosby.com/scripts/om.dll/serve?article=jod001174eb Information for Readers http://www1.mosby.com/scripts/om.dll/serve?article=jod001174ir _______________________________________________________________________ Copyright (c) 2000 by Mosby, Inc. INFORMATION FOR READERS: To order a subscription call 1-800-453-4350 or visit us at http://www1.mosby.com/scripts/om.dll/serve?db=home&id=od. TO REMOVE YOURSELF FROM THIS LIST: Go to http://www1.mosby.com/scripts/om.dll/serve?action=etoc&id=od and enter your email address in the appropriate box. You can also unsubscribe by sending a message to majordomo@mosby.com with the words "unsubscribe ajodo_toc" as the body of the message.
Subject: Re: ORTHOD-L digest 691
Date: Tue, 11 Apr 2000 14:10:19 EDT
From: OrthoSheff@aol.com
To: orthod-l@usc.edu
I have an adult male patient who has been in treatment for 9 months. Total treatment is scheduled for 12 months. He has fallen behind on his payments, and has paid for only 1/2 of his treatment. He was in today and told us that his insurance is not paying as much as he thought they would. He informed us that he would NOT honor his contract and that he would pay us an amount that was considerably amount less than agreed upon. What rights do I have as far as terminating treatment.? Can I refuse to schedule an further appointment until his account is paid? Can I terminate treatment, take his braces off and give him retainers? Can I not give him retainers unless his account is paid? What is the best way (and legal way) to approach this without "abandoning the patient" or leaving him with an unstable occlusion? John Shefferman Washington, D.C.
Subject: RE: Substituting maxillary laterals for avulsed centrals: reprise
Date: Tue, 11 Apr 2000 23:55:25 +0100
From: "Ross Hobson" <R.S.Hobson@ncl.ac.uk>
To: "Jeff Genecov" <c0018593@airmail.net>, <orthod-l@usc.edu>
- Thanks for all your replies to this difficult situation.
- However a small error occurred (I should have taken typing in high school!) The sentence beginning "Her maxillary central were previously avulsed completely..." should read "maxillary centrals", meaning both were avulsed and reimplanted, and are now failing.
- I can't remebr if the patinet required extractions in the lower arch - if this is the case a neat plan is to use the lower premolars into the central sockets - you need a good delicate surgeon (get him to read Andresen's book on trauma of incisors) the success rate is as good as implants.but you need close coporeation with someone to do the RCT on the transplanted teeth then to reshape the crowns you place the molars side on we have used this with good results in a number of case following trauma and in hypodontiaross Hobson[Ross Hobson]
Subject: RE: Agenesis mandibular 5s
Date: Tue, 11 Apr 2000 23:55:34 +0100
From: "Ross Hobson" <R.S.Hobson@ncl.ac.uk>
To: "Mark Cordato" <markc@ix.net.au>, <orthod-l@usc.edu>
00 1:45 PM To: orthod-l@usc.edu Subject: Agenesis mandibular 5s In Newcstle on our hypodontia clinic this is a common problem if there is no lower crowding or need for retraction of the incisors we mainatin the E's as long as possible to keep bone - if necessary building crown height to keep the occlusion as and when they are lost 0 acid etch bridges work very well if there is crowding then close the space. ps. class III molars are perfectly stable Ross Hobson
Greetings, I intend to send an anonymous survey to my patients with the hope of getting some feedback on how our team is doing (?Do I really want to do this!). I have an idea of some of the questions that I would like to ask, but I wonder if anyone else has ever done this before. Anyone care to share their thoughts?Date: Sat, 6 May 2000 06:35:23 EDT
----- Original Message -----Date: Wed, 17 May 2000 20:43:45 -0700
From: erx007tr
To: ESCO - ORTODONZIA
Sent: Wednesday, May 10, 2000 3:24 AM
HELLO
what can I do when there is agenesia of 2 lower prem and ankylosis of E in a patient female 17 ys old.
I don't want to extract E and (maybe 15-25) and close the spaces: she 's a deep bite.
your sicerely
dr errico Bucci Orthodontist
----- Original Message -----Date: Wed, 21 Jun 2000 10:33:39 -0500
From: James M Faulkner
To: Electronic Study Club for Orthodontics
Cc: Lisa Peter Howard
Sent: Monday, June 19, 2000 9:47 PM
Subject: Mounting Cases
Dear Club Members,
At the risk of being ostracized for ignorance, I have a basic question to float around. Why would you routinely articulate your study models? I know orthodontists that routinely mount all their cases, but get a foggy answer why. We know that occasionally there is difference between CO and CR and know that this knowledge may affect our treatment plan But my question deals with all the other times. For your information I am board certified and have been in practice for 18 years. I am wondering if I am missing something.
Cheerio
Jim Faulkner
Kennebunkport, Maine (home of the REAL PRESIDENTS- note the "s")
----- Original Message -----Date: Tue, 27 Jun 2000 09:08:10 -0400
From: Ron Parsons
To: James M Faulkner
Cc: USC Orthodontic Study Club
Sent: Thursday, June 22, 2000 5:58 AM
Subject: Re: Mounting Cases
Why mount models? ... Sales & Marketing. Why take models? ... Sales & Marketing.
Ron Parsons
----- Original Message -----
From: James M Faulkner
To: Electronic Study Club for Orthodontics
Cc: Lisa Peter Howard
Sent: Monday, June 19, 2000 9:47 PM
Subject: Mounting Cases
Dear Club Members,
At the risk of being ostracized for ignorance, I have a basic question to float around. Why would you routinely articulate your study models? I know orthodontists that routinely mount all their cases, but get a foggy answer why. We know that occasionally there is difference between CO and CR and know that this knowledge may affect our treatment plan But my question deals with all the other times. For your information I am board certified and have been in practice for 18 years. I am wondering if I am missing something.
Cheerio
Jim Faulkner
Kennebunkport, Maine (home of the REAL PRESIDENTS- note the "s")
Date: Tue, 25 Jul 2000 09:08:45 +1000ORTHOD-L Digest 714 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) Anterior extraction by iwire32@earthlink.net 3) Gagger by "Ernest McCallum" <emccallum@emeraldis.com> 4) Webshots Photo Album by druday@vsnl.com 5) Eureka Spring by "Eugene Gottlieb" <egott@sedona.net> 6) Info management of future by "Ron Parsons" <ronparsons@mindspring.com> 7) Bimler courses by "Bimler" <101.238565@germanynet.de> 8) Re: Nikon Coolpix 990 or Olympus C 3030 by "Ernest McCallum" <emccallum@emeraldis.com> 9) Re: DIGITAL CAMERAS by "Maurie Costello" <braces@costellodental.com.au> 10) Other Desital Camera by "jun" <j-1@ijk.com> 11) Sony digital cameras by "Robert Pickron" <pickron@speedfactory.net>
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Mon, 24 Jul 2000 08:28:04 -0700
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 21
Subject: Anterior extraction
Date: Mon, 24 Jul 2000 01:19:58 -0700
From: iwire32@earthlink.net
To: ESCO <orthod-l@usc.edu>
My experience with lower incisor extractions has been favorable using immediate initiation of space closure following extraction and with rapid closure. I have been able to finish with a good amount of tissue interproximally in what was the extraction site and the bone has looked good radiographically. But the current case in question has an almost full-size, erupted, supernumerary, maxillary central incisor. The tooth in the midline is to be extracted because of its form and caries. A consulting periodontist has suggested that the bone be allowed to fully reorganize before the adjacent teeth are moved into the extraction site. I fear that a long wait will result in loss of both alveolar height and thickness and thereby cause a larger interproximal space in this aesthetically critical area. Any thoughts? Please relate your practical experience (or reference to any articles) as to the speed with which anterior extraction spaces can or should be closed without causing problems to the periodontal ligaments. Art Kobal Thousand Oaks
Subject: Gagger
Date: Tue, 18 Jul 2000 16:03:59 -0400
From: "Ernest McCallum" <emccallum@emeraldis.com>
To: <orthod-l@usc.edu>
Hi all, I have a very nice, well adjusted, above average, twelve y.o. boy with a terrible gag reflex. We have gotten thru records and extractions but bonding has been very difficult. I have tried several different retractors trying to avoid placing anything on the roof or floor of the mouth (these areas seem to precip. an unwanted reflex). I am considering using a glass ionomer cement so moisture control will be easier. I was able to get brackets 3I3 and separators today without incidence (mom not feeding him prior to the appt is also a plus), next week is bands, then place lower bonds later. Any suggestions? drugs? hypnosis? Any and all recommendations welcome. Ernest McCallumGreenwood SC
Subject: Webshots Photo Album
Date: Fri, 21 Jul 2000 07:14:35 -0700
From: druday@vsnl.com
To: orthod-l@usc.edu
Hi. Have a look at these photos on the Webshots Community. Point your browser to this link: http://community.webshots.com/album/3180035DuTnnFwJSe Cheers, Dr.Uday _____________________________________ Put Incredible Photos On Your Desktop FREE ~ http://www.webshots.com/go?now
Subject: Eureka Spring
Date: Tue, 18 Jul 2000 12:31:27 -0700
From: "Eugene Gottlieb" <egott@sedona.net>
To: <orthod-l@usc.edu>
Hi all! For those interested in the Eureka Spring and its source, there was an article entitled "The Eureka Spring" in the July 1997 issue of JCO, page 454. The source of the spring is Eurika Spring Company, 1312 Garden St., San Luis Obispo, CA 93401. Gene Gottlieb
Subject: Info management of future
Date: Sat, 22 Jul 2000 09:52:33 -0400
From: "Ron Parsons" <ronparsons@mindspring.com>
To: "USC Orthodontic Study Club" <orthod-l@usc.edu>
Do you think information management in orthodontic offices will use devices like the one below? Another innovation is in screen technology. Check out www.trivium.com/news/crains_june2000.htm Those interested in Trivium, financially can contact Mr. David Kinsley at 1-914-767-0431. Ron ParsonsLawrenceville, GAThe Shape of PCs to Come?
Department: Technology & YouThe new Qbe tablet computer from Aqcess Technologies (www.qbenet.com) may be a harbinger of shapes to come. The Qbe relies on data-entry technologies that aren't quite ready for prime time and is further handicapped by some poor design choices, but it is an interesting design pioneer.
The Qbe Cirrus that I tried is a box about 14 in. long, 10 in. wide, and 2 1/2 in. thick. The top is mostly covered by a 13.3-in. touch-sensitive display, and there's a built-in video camera at the top. The Qbe runs on a 400-MHZ Pentium II, features a 12-GB hard drive and 128 MB of RAM, and costs a steep $4,745. The less expensive Celeron-powered Genus model fetches $3,995. Both use Windows 98 and run standard PC software.
The Qbe is designed to be used on your lap or any horizontal surface. It stands up with a removable prop called a "porticle," which includes a full complement of parallel, serial, and other ports. With the prop and a keyboard and mouse attached, the Qbe is basically a variation on the desktop PC. Used as a tablet, however, it's something quite different from either a desktop or a notebook.
The problem is entering data. The Qbe offers three choices, none fully satisfactory. First, you can write on the screen with the pen, using ParaGraph's PenOffice software. Unfortunately, handwriting recognition doesn't work a lot better than it did in the days of Apple's much-ridiculed Newton. In the case of the Qbe, the accuracy problem is made worse by a noticeable delay before the writing actually appears on the screen. Having the option of a more accurate shorthand, like Palm's Graffiti, would be a big help.
The second method is to use the speech-recognition software included with the Qbe--Lernout & Hauspie's Voice Xpress. It does pretty well after you invest some time in training, but to get it to work I had to use a Telex digital headset to bypass the apparently defective audio system.
The final method is typing on a touch-sensitive keyboard that can pop up to cover the bottom quarter of the screen. The keys are big enough to hit with your fingers, and while touch typing is out of the question, the keyboard works well enough for limited amounts of data.
COOLER, CHEAPER. Beyond the data-entry problems, the Qbe has some design issues. At six pounds, it weighs heavy on your lap, especially since the Pentium heats the magnesium case up to an uncomfortable temperature. The Qbe can run on battery power, but only for about 90 minutes at a time, so you won't want to get very far from a power outlet. And this is a device that really wants a wireless connection to the Internet, since the tablet design is ideal for Web browsing.
Better, lighter, cooler, and cheaper tablets are on the way. Aqcess hopes to have a three-pound, $1,500 unit this fall. Later this summer, Qubit Technology plans to ship a much-delayed 2 1/2- pound Web-browsing tablet featuring a wireless link to the Internet.
Subject: Bimler courses
Date: Fri, 21 Jul 2000 10:25:45 -0700
From: "Bimler" <101.238565@germanynet.de>
To: <orthod-l@usc.edu>, <laurent.gross@libertysurf.fr> - Dear Sirs: Maybe the included information is of interest for someone in your department. Thank you for your cooperation! "Bimler Courses" (July 2000) 11/12 August: Wiesbaden, Germany ("Weinwoche")September: Rio de Janeiro & Campinas, BrasilOctober: Tokyo, Japan13-19. November, La Habana, CubaNovember, Mexico City March 2001: Tokyo, Japan21-23 June, Buenos Aires, Argentina4-6 July, Buenos Aires, ArgentinaSeptember, Tokyo, Japan Info: bimler@germnaynet.deTel. +49(611)304027 Fax ~377889 Sincerely yours, Dr. Barbara Bimler.
Subject: Re: Nikon Coolpix 990 or Olympus C 3030
Date: Tue, 18 Jul 2000 10:40:06 -0400
From: "Ernest McCallum" <emccallum@emeraldis.com>
To: <orthod-l@usc.edu>
Hi all, Last year I purchased an Olympus D620l (1.4 mp) camera. I have been extremely happy with this model. It is a SLR (thru lens focusing) camera, reachargeable batteries, screw on macro lens with flash diffuser, and a built in flash. Photos are very good even in the medium quality setting. I know this is not a 2.4 mp but has it has served me well. I wonder why Olympus has not made a high mp SLR camera? Or do they? Are the download times with a high mp camera greater than the increase in picture quality? Anyone have a comparison b/n quality in picture and download time. -- Does it make a difference? I am downloading thru a floppy adapter -- which can be slow. Is anyone using a built in drive that accepts the flash cards? Where can you get one ? $$? Too many questions? All the best. Ernest McCallum Greenwood SC
Subject: Re: DIGITAL CAMERAS
Date: Thu, 20 Jul 2000 06:53:01 +1000
From: "Maurie Costello" <braces@costellodental.com.au>
To: <orthod-l@usc.edu>
Hey Guys: Why all this talk about the CoolPix? I did my homework over several months and last month took delivery of the BEST digital clinical camera I have ever had, to replace my aging Fuji 220. I bought a SONY DSD D770. It is a single-lens-reflex camera, auto or manual focus, completely programable or manually selectable, came with a ring flash which can be switched down to 1/16 power output for intraoral..in all...its is supurb. Unlike the Olympus 2500, the Sony can be used in EITHER viewfinder mode, or on the screen mode...while composing. Has instant playback. I purchased mine from Dolphin ...no financial interest. Have a look at the Sony: you will be pleased with what you see. Maurie Costello Orthodontist Australia
Subject: Other Desital Camera
Date: Fri, 21 Jul 2000 12:17:28 +0900
From: "jun" <j-1@ijk.com>
To: <orthod-l@usc.edu>
Dear Member I found Desital Camera for intro-Oral Photo. It is Fuji Fine Pix 2900Z with Original Ring Leight.(about 1800$) It can take a picture with X1/2-1 intra-oral photo. I hope that I take intra-oral photo and facial photo(x1/10). Please sent some information. Jun Matsumura Kanagawa Japan j-1@ijk.com
Subject: Sony digital cameras
Date: Sun, 23 Jul 2000 17:56:21 -0400
From: "Robert Pickron" <pickron@speedfactory.net>
To: <orthod-l@usc.edu>
Anyone have experience with Sony cameras in the clinical area?
Embedded Content: 13795da1.jpg: 00000001,11b2f272,00000000,00000000 Attachment Converted: "C:\Program Files\UICNSKit\Eudora\Attach\biglogo2.jpg"
L USO DEL PENDOLO DI HILGERS NEL CONTESTO DELLA MECCANICA BIOPROGRESSIVA
nuova pubblicazione del dottor Daniele Razzani all'indirizzo
http://digilander.iol.it/lunasido/siob/fb/pub20/default.htm
Ugo De Marinis (webmaster sito siob)
webmaster@siob.it
http://www.siob.it
home page http://www.mclink.it/personal/MC2445
mail personale udmbg@mclink.it
home page english version
http://www.geocities.com/HotSprings/Spa/1751
international mail ugodemarinis@tiscalinet.com
-----Original Message-----Date: Sat, 16 Sep 2000 08:37:35 -0300
From: orthod-l@usc.edu [mailto:orthod-l@usc.edu]
Sent: Saturday, September 16, 2000 2:34 AM
To: Electronic Study Club for Orthodontics
Subject: ORTHOD-L digest 722
ORTHOD-L Digest 722 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik 2) Invisalign by John Schuler 3) Re: invsalign by "Vaughn Johnson" 4) Automated Cephalometric Landmark recognition by "jm" 5) 3d occlusogram by Glen Armstrong 6) Re: ORTHOD-L digest 719 by George Wang 7) Patient to London by "CARLOS ENRIQUE GOMEZ" 8) Re: corso di bio1 by webmaster@siob.it
----- Original Message -----Date: Mon, 18 Sep 2000 10:44:31 -0500
From: John Schuler
To: Electronic study club
Sent: Monday, September 11, 2000 7:26 AM
Subject: Invisalign
How about a general comment on Invisalign. Who thinks it will be with us 2 years from now and who will be left holding the bag?
John Schuler D.D.S., M.S.
Peoria, IL
anybody care to comment on the new price list from invisalign?
g. russell frankel
cincinnati
Date: Tue, 19 Sep 2000 22:19:24 EDTORTHOD-L Digest 722 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) Invisalign by John Schuler <jlschuler@sprynet.com> 3) Re: invsalign by "Vaughn Johnson" <vjohnson@frontier.net> 4) Automated Cephalometric Landmark recognition by "jm" <braces@bigpond.net.au> 5) 3d occlusogram by Glen Armstrong <armstrong@turbonet.com> 6) Re: ORTHOD-L digest 719 by George Wang <georgesw@netvigator.com> 7) Patient to London by "CARLOS ENRIQUE GOMEZ" <carrique@emtelsa.multi.net.co> 8) Re: corso di bio1 by webmaster@siob.it
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Fri, 15 Sep 2000 11:20:44 -0700
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 29
Subject: Invisalign
Date: Mon, 11 Sep 2000 06:26:44 -0500
From: John Schuler <jlschuler@sprynet.com>
To: Electronic study club <orthod-l@usc.edu>
How about a general comment on Invisalign. Who thinks it will be with us 2 years from now and who will be left holding the bag?
John Schuler D.D.S., M.S.
Peoria, IL
anybody care to comment on the new price list from invisalign?
g. russell frankel
cincinnati
Subject: Re: invsalign
Date: Mon, 11 Sep 2000 09:31:56 -0600
From: "Vaughn Johnson" <vjohnson@frontier.net>
To: <orthod-l@usc.edu>
ouch....but predictable when the $8 million line of credit comes due. vaughn johnson durango, co ----- Original Message ----- From: "g russell frankel" <gr5@cinci.rr.com> To: <orthod-l@usc.edu> Sent: Tuesday, September 05, 2000 8:36 PM Subject: invsalign > anybody care to comment on the new price list from invisalign? > g. russell frankel > cincinnati > >
Subject: Automated Cephalometric Landmark recognition
Date: Mon, 11 Sep 2000 09:46:08 +1000
From: "jm" <braces@bigpond.net.au>
To: <orthod-l@usc.edu>
I am about to embark on a software project involving "Automated Cephalometric Landmark recognition". I am curious as to whether there would be a demand for such software. I have been following the research and papers on this subject for about 10 years and it appears that like voice recognition it may be more trouble than it is worth. For example with voice recognition the "teaching" curve is so steep that it is still easier to use a Dictaphone and a typist with some good word processing/correspondence software linked to a practice/patient management package. Not to mention the plethora of "manual" transcription services that are now available on the net. Given that you can now digitise and analyse a ceph within 5 minutes and often a procedure that can be delegated to auxiliaries - would I be right in assuming that Automated Landmark recognition would only be useful in a research environ involving large samples? Is anyone else working on such a project? Dr John Mamutil Orthodontist SYDNEY, AUSTRALIA www.brace5.com
Subject: 3d occlusogram
Date: Mon, 11 Sep 2000 18:10:38 -0700
From: Glen Armstrong <armstrong@turbonet.com>
To: ORTHOD-L@USC.EDU
Does anyone have any experience with Medi-dent's 3D occlusogram program?
Subject: Re: ORTHOD-L digest 719
Date: Fri, 15 Sep 2000 12:23:09 +0800
From: George Wang <georgesw@netvigator.com>
To: orthod-l@usc.edu
Dear Group, I have heard of this HYCON Device. Dose anyone has experience in using it to close space? Where can I purchase it? George Wang Hong Kong
Subject: Patient to London
Date: Tue, 12 Sep 2000 08:02:25 -0500
From: "CARLOS ENRIQUE GOMEZ" <carrique@emtelsa.multi.net.co>
To: <orthod-l@usc.edu>I am an orthodontist from Manizales,Colombia. One of my patients is leaving to London and I would like to know if there is any of you who could teke her as a patient and finish her treatment (Straight Wire Technique)I'll apprecaite your help.Carlos E. Gomez
Subject: Re: corso di bio1
Date: Thu, 14 Sep 2000 08:37:32 +0200
From: webmaster@siob.it
To: <webmaster@siob.it>
nuova pubblicazione del dottor Daniele Razzani all'indirizzohttp://digilander.iol.it/lunasido/siob/fb/pub20/default.htm
![]()
LUSO DEL PENDOLO DI HILGERS NEL CONTESTO DELLA MECCANICA BIOPROGRESSIVA
Ugo De Marinis (webmaster sito siob)
webmaster@siob.it
http://www.siob.it
home page http://www.mclink.it/personal/MC2445
mail personale udmbg@mclink.it
home page english version
http://www.geocities.com/HotSprings/Spa/1751
international mail ugodemarinis@tiscalinet.com
----- Original Message -----Date: Wed, 18 Oct 2000 21:16:22 +0300
From: Chris Greeff
To: ESCO
Sent: Sunday, October 15, 2000 8:47 AM
Subject: X-Ray scanner
Can anybody recommend a good quality easy to use scanner?
Must be able to scan Pans and Cephs at a reasonable speed
Thanks in advance
Chris Greeff
Centurion
South Africa
chris@icon.co.za
I have encountered a patient who has systematically broken a 16 X 22 SS wire between the upper two centrals. <snip>
>> more. Maybe read the other anecdote about the 53 year old nurse who,
>> with much questioning, eventually worked out that she was slamming her
>> incisors together during sleep, which was stopping the overjet
>> reduction.
>This is interesting because the gnathologists (McHorris) often say
>patients parafunction in CR when asleep, not in CO, and this is almost
>accepted as the common occurence. I am not sure of the details
>whether it is one condyle or both in CR for bruxing.
>There are exceptions and this is where guys like Every with his theory on Thegosis and >occlusion get a run too.
----- Original Message -----Date: Wed, 25 Oct 2000 07:42:46 -0500
From: centrorsancancio
To: orthod-l@usc.edu
Sent: Friday, October 20, 2000 10:05 PM
Subject: Oral Breath
Dear colleagues,
I am working in a research project with an ENT regarding the oral breath habit and its effects on the facial growth. One of the major problems we have find is how to measure or determinate a patient is an "Oral Breath" case. Does any of you knows an answer to solve this matter in an objective way? We appreciate all your comments.
Carlos E. Gomez
Manizales,Colombia
carrqiue@emtelsa.multi.net.co
>Barry wrote:
>>How old was the wire, since hydrogen embrittlement is very real with old stock (>4 years) >>especially if not sealed away from water vapor?
>My question is: Is there literature on this specific subject?
>Good idea but why should we compensate for the patient's inability to be compliant?
>The intent of my original thread was to begin a discussion on general compliance and how parents >and patients will lie to avoid admitting that they have done something wrong.
Subject: Re: Invisalign
Date: Thu, 26 Oct 2000 20:53:45 -0400
From: "Barry Raphael" <baronlin@concentric.net>
To: <orthod-l@usc.edu>
I am an Invisalign practioner. I've spoken in favor of the appliance in this arena before. Most cases are going well. I still have good things to say. But I need help on this one: an ethical issue that I think will become more prevalent as we use the appliance more. Here's the case. 25 y/o female. Beautiful - like Janet Jackson. "Hates" the way the upper central is turned and "Hates" the crowded lower incisors. Now get this: Overjet is 9mm, molars full Class II. With gentle probing, I find that 1)She is not concerned with the protrusion of the upper incisors, 2) She is not concerned at all about the overjet, and 3) There is "No way" that she will wear braces. He job is "too demanding" and she does not want to be seen in braces (OK boys, don't get your bristles up. That IS who the advertising is aiming at, after all). The question is: Do I do the Invisalign to satisfy the patient's chief concern , or do I say that your case is not suitable for Invisalign? Do I do the Invisalign case EVEN IF I give a full informed consent about the limitations of the treatment, the risks of leaving a Class II malocclusion, the impact of long term stability, AND the caveat that fixed appliances will be needed in the event she is not satisfied with the results? Because I am sure I could get this lady to sign on the dotted line if she thought she could get that incisor in line without braces. Perhaps we face the same quandries with fixed appliances too when there are legitimate options (ideal vs compensation, x vs non-x, surg, and so on). The decision is easy when I can see the compromise may cause harm, or may eliminate a more ideal therapy in the future. But when the treatment seems quite harmless, or I know that I can always resort to the proper treatment if it becomes indicated, the decision lines become blurry. And this is where Invisalign is going to present the greatest challenge. Deciding which cases to do, and which to pass on. Any comments? Barry Raphael Clifton, NJ
Date: Sat, 4 Nov 2000 19:34:50 +0100
Subject: Herbst
Date: Wed, 1 Nov 2000 17:40:06 EST
From: Orthodmd@aol.com
To: orthod-l@usc.edu
Been using herbst for sometime. I belong to Oakstone medical's online
literature review service. Most of the abstracts from the literature
review service are not very supportive of the Herbst appliance. Most
correction is dento-alveolar with a lot of mandibular incisor tipping.
Have any of you
Herbst user evaluated results?
David M. Lebsack DDS MS
Dear David,
I just spent the weekend with Rick McLaughlin of the San Diego McLaughlins
and, while he is not a Herbst user, we both agree that most of what
orthodontists do is dentoalveolar in nature. I would love to assume that I
am a dentofacial orthopedist but other than palatal expansion, I can't be
sure of what happens other than moving teeth. I wish it weren't so.
Warm regards
Charlie Ruff
Date: Sun, 05 Nov 2000 01:44:31 +0000
----- Original Message -----
From: centrorsancancio
To: orthod-l@usc.edu
Sent: Saturday, October 21, 2000 7:35 AM
Subject: Oral Breath
Dear colleagues,
I am working in a research project with an ENT regarding the oral breath habit and its effects on the facial growth. One of the major problems we have find is how to measure or determinate a patient is an "Oral Breath" case. Does any of you knows an answer to solve this matter in an objective way? We appreciate all your comments.
Carlos E. Gomez
Manizales,Colombia
carrqiue@emtelsa.multi.net.co
From: Rodrigo Frizzo ViecilliDate: Fri, 10 Nov 2000 06:22:51 -0600
To: orthod-l@usc.edu
Sent: Saturday, November 04, 2000 11:05 AM
Subject: herbst/bionator/ mandibular growth
I personally don't like the Herbst appliance for 3 reasons:
1) incisor tipping/ dento-alveolar protrusion/tipping in the upper molars
2) discomfort of the patient
3) I think the Bionator lets the patient bring the jaw back and forward to its correct position, than this appliance is more physiological. In theory, I believe this come and go movement gives the condyle more stimulation for growth.
All we know there are problems concerning the effectiveness of the Bionator, but we use ATM tomographies and occlusal splint to check if there was only a repositioning or effective growth.
We always try to avoid surgery, that's why we always try the Bionator, at least to say you have tried something, while people keep researching. We don't have any case of TMJD after the use of Bionator until today.
The cases that show better response are the ones of meso or braqui patients and with favorable growth direction. But we got good results in some dolico patients too. Some patients need a genioplasty after using it, but most don't choose this option and are satisfied with their profile.
I can't prove if our good results are natural or we have an increment of growth because of the appliance. In my opinion, the appliance works with most of the patients that really use it.
I think when most people use commonly a cervical facebow in the growth phase , the tendency of opening the bite in some patients is minimized by the growth of the condyle and I think it is a process similar in condyle results to the Bionator system ( of course the objectives are different). We see in some of this patients a modification in FMA and not in the Y axis, for example. I think that's why we don't see the AFAI increase in some kids that use it, we see more in older patients. We don't use the cervical headgear a lot, we prefer the IHG, because there is more control of the direction of the force in the appliance and molar movement.
In my opinion most of our changes are really dentoalveolar. This is the opinion of almost all the orthodontic researchers nowadays. But if we have doubts, they should be viewed in the side of benefit for the patient.
Dr. Rodrigo Viecilli/ Dr. Orlando Viecilli
Canoas-RS/ Brazil
Subject: Herbst
Date: Wed, 1 Nov 2000 17:40:06 EST
From: Orthodmd@aol.com
To: orthod-l@usc.edu
Been using herbst for sometime. I belong to Oakstone medical's online
literature review service. Most of the abstracts from the literature
review service are not very supportive of the Herbst appliance. Most
correction is dento-alveolar with a lot of mandibular incisor tipping.
Have any of you
Herbst user evaluated results?
David M. Lebsack DDS MS
Dear David,
I just spent the weekend with Rick McLaughlin of the San Diego McLaughlins
and, while he is not a Herbst user, we both agree that most of what
orthodontists do is dentoalveolar in nature. I would love to assume that I
am a dentofacial orthopedist but other than palatal expansion, I can't be
sure of what happens other than moving teeth. I wish it weren't so.
Warm regards
Charlie Ruff
November 7, 2000Date: Fri, 10 Nov 2000 10:17:55 -0600
Dear Colleagues:
I've noticed something going on with the Invisalign message boards
on their web site. About 2 weeks ago, I submitted a question to the
Doctors' message board pointing out that some of their demo cases on the
web site show torquing movements. I asked whether aligners are capable
of torquing according to the company's research. The question was not
posted to the web, so I submitted a similar one to the Certified
Doctors' message board about a week later. Another week passed without
posting of the questions, but a few other questions were posted on the
same boards. I called the company about something else, but also asked
to speak with the person who moderates the message boards. He said that
he received my questions but hasn't posted them because he is waiting
for an answer from the professional staff. Meanwhile, another week has
passed -- silence on the doctors' message boards, but now there are over
300 messages from patients, many with answers from Invisalign staff.
It's not that they don't have time to answer my question. It seems that
they want to avoid bringing the subject up.
Yesterday, at a regional orthodontic meeting, I was chatting with a
colleague who mentioned that she had finished an Invisalign patient with
generally nice results but one bicuspid just would not rotate in spite
of having buccal and lingual attachments (composite bumps that are
placed to the company's prescription as additional grip on the teeth
which need them). Obviously this was a patient started early in the
lifespan of Invisalign, so maybe the company doesn't take on such
situations now, but the case met Invisalign criteria back when it was
started. My point is that we cannot have 100% confidence in the
ability of Align Technology to treat cases successfully, even if they
think they can do it. One wonders where the science ends and the hype
begins.
Don't get me wrong. I'm still offering Invisalign and have great
confidence that it is a viable treatment method for a subset of our
cases. But you, me, and the company all are in an earn-as-you-learn
situation here. We are going to have a very slow climb up that learning
curve if each of us individually tries to accumulate enough experience
with aligners all on our own. This calls for a pooling of our
resources.
This morning, my staff showed me the new full-page ad for Invisalign
in the People magazine that arrived. The company's marketing department
is going full speed with their multi-million dollar advertising budget.
One wonders why they can't respond to a simple question posed by one of
their certified doctors. It's even more disheartening to see that the
moderated bulletin board has not posted the question.
A problem in management of Invisalign treatment has been the
estimation of treatment duration and cost. The most asked question by
patients on the Invisalign message board, and I'm sure also in the minds
of prospective patients, is about the cost. I handle this by giving
them a few benchmark fees as a range, 12 months with aligners, 18
months, 24 months, or whatever. Then I tell them that we won't know
their exact treatment fee until we have their problem analyzed by the
lab, for which there is a substantial up-front cost, so we need their
down payment first for records, analysis, and treatment planning. Would
it not be nice to have a library of Invisalign worked-up cases
(ClinChecked virtual models) to compare with the presenting patient's
problem? And would it not be nice to see the actual finished results
of a broad range of cases, not just those cherry-picked by the company?
I think this would give us a little better feel for the capabilities
right now, without waiting for each of us to accumulate that experience
slowly, avoiding potential disappointments. I don't think we can
expect to see this kind of data coming out of the company.
I'm interested in hearing from you if you would like to participate
in developing an online library of Invisalign cases by submitting your
cases by email. I'm going to try it myself first, but I think with a
few simple steps, you could attach the local file of each patient's
ClinCheck data to an email message and send it to me. Before and after
photos of the teeth would also be great. I'm developing a web site
called "InvisibleOrthodontist.com" to explain more about Invisalign,
lingual bracket treatment, and other invisible treatments we do, and to
give orthodontists a focal point for sharing information. I could add
the case library as a password-protected area of the web site accessable
to orthodontists only. I would pay particular attention to patient
privacy, so no individually-identifiable data or images would be posted
to the web. To obtain a password, you would have to contribute at least
one case.
Any interest? If so, please email directly to me and let me know
how many cases you can submit as soon as I get the web site ready.
Sincerely,
Stan Sokolow, DDS
overbyte@earthlink.net
From: orthod-l@usc.edu
To: Electronic Study Club for Orthodontics <orthod-l@usc.edu>
Subject: ORTHOD-L digest 735
Date: Thu, 9 Nov 2000 02:34:13 PST
ORTHOD-L Digest 735
Topics covered in this issue include:
1) ESCO - The Electronic Study Club for Orthodontics
by Joseph Zernik <orthodl@hsc.usc.edu>
2) Crohn's Diesease
by Ted Schipper <ted.schipper@utoronto.ca>
3) re: Herbst Appliance
by "Dr. Wolfgang Schulz" <wschulz@w-4.de> (by way of Joseph Zernik <orthodl@hsc.usc.edu>)
4) herbst/bionator/ mandibular growth
by Rodrigo Frizzo Viecilli <philox@zaz.com.br>
5) RE: Herbst
by "Leon Verhagen" <lamverhagen@interestate.nl>
6) Re: Herbst
by "Paul M. Thomas" <pm.thomas@gte.net>
7) Breakage - The saga continues
by =?iso-8859-1?Q?Andr=E9_Ruest?= <aruest@compuserve.com>
8) Re: Oral Breath
by "prasanna_r" <prasanna_r@satyam.net.in>
9) Re: ORTHOD-L digest 734
by "Tim and Debbie Alford" <tja3819@netdirect.net>
10) Re: Dentoptix
by "prasanna_r" <prasanna_r@satyam.net.in>
11) Align Technologies' silence on Doctors' message boards
by "Stanley M. Sokolow" <overbyte@earthlink.net>
12) Orthodontist in Prague, Czech Republic
by Paul Schneider <pschneid@bigpond.net.au>
<< message4.txt >>
<< message6.txt >>
<< message8.txt >>
<< message10.txt >>
<< message15.txt >>
<< message17.txt >>
<< message19.txt >>
<< message24.txt >>
<< message31.txt >>
<< message33.txt >>
<< message42.txt >>
<< message44.txt >>
----- Original Message -----Date: 16 Nov 00 09:15:51 MST
From: J. Eric Selnes
To: ESCO
Sent: Friday, November 10, 2000 7:49 AM
Subject: Wilkodontics
I had a patient come in for a second opinion and after the consult and records, she pulled out a Wilkodontics brochure and asked about the procedure. Now I have some basic understanding of the procedure but she wanted some scientific info. I scoured all of my issues of JCO and AJODO for the last 3-4 years and could not find one reference.
Does anyone out there utilize this technique and if so do you have any details/recommendations/pros and cons. Also, if anyone knows of reference material about the technique I would also be interested. I mentioned to the patient about our forum so I hope someone out there can give me a hand with this treatment mode.
Thank you so much,
Eric
J. Eric Selnes BA, BPHE, DDS, MSc, D ORTHO
VillageORTHO.com
Serving MISSISSAUGA, GEORGETOWN, BRAMPTON, ORANGEVILLE, OAKVILLE and ETOBICOKE since 1975
Phone: (905) 275-8501 Fax: (905) 275-5213
Email: smile@istar.ca or BRACES@istar.ca
---------------------------------------------------------------------------------------
This email may contain confidential and/or privileged information for the sole use of the intended recipient. Any review or distribution by others is strictly prohibited. If you have received this email in error, please contact the sender and delete all copies. Opinions, conclusions or other information expressed or contained in this email are not given or endorsed by the sender unless otherwise affirmed independently by the sender.
---------------------------------------------------------------------------------------
----- Original Message -----Date: Tue, 21 Nov 2000 08:13:40 -0600
From: jk - John Kalbfleisch
To: orthod-l@usc.edu
Sent: Thursday, November 16, 2000 7:45 AM
Subject: RE: Wilkodontics
Hi Eric... have a peek at www.wilkodontics.com
jk
- -----Original Message-----
- From: owner-orthod-l@usc.edu [mailto:owner-orthod-l@usc.edu]On Behalf Of J. Eric Selnes
- Sent: Friday, November 10, 2000 7:49 AM
- To: ESCO
- Subject: Wilkodontics
- I had a patient come in for a second opinion and after the consult and records, she pulled out a Wilkodontics brochure and asked about the procedure. Now I have some basic understanding of the procedure but she wanted some scientific info. I scoured all of my issues of JCO and AJODO for the last 3-4 years and could not find one reference.
- Does anyone out there utilize this technique and if so do you have any details/recommendations/pros and cons. Also, if anyone knows of reference material about the technique I would also be interested. I mentioned to the patient about our forum so I hope someone out there can give me a hand with this treatment mode.
- Thank you so much,
- Eric
- J. Eric Selnes BA, BPHE, DDS, MSc, D ORTHO
- V
illageORTHO.com
- Serving MISSISSAUGA, GEORGETOWN, BRAMPTON, ORANGEVILLE, OAKVILLE and ETOBICOKE since 1975
- Phone: (905) 275-8501 Fax: (905) 275-5213
- Email:
smile@istar.ca or BRACES@istar.ca- ---------------------------------------------------------------------------------------
- This email may contain confidential and/or privileged information for the sole use of the intended recipient. Any review or distribution by others is strictly prohibited. If you have received this email in error, please contact the sender and delete all copies. Opinions, conclusions or other information expressed or contained in this email are not given or endorsed by the sender unless otherwise affirmed independently by the sender.
- ---------------------------------------------------------------------------------------
ORTHOD-L Digest 740 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) surg-ortho in sle patient by "Dr. B.L. Vendittelli" <vendittelli@yahoo.com> 3) lingual orthodontics by "Dr. B.L. Vendittelli" <vendittelli@yahoo.com> 4) Invisalign by "Dr. Robert Hatheway" <drbob@nb.sympatico.ca> 5) electronic insurance by "Leon Klempner" <DrK@i-2000.com> 6) RE: Occlusoguide by "Stanley M. Sokolow" <overbyte@earthlink.net> 7) craniofacial articles on the net by Orthodmd@aol.com 8) Torquing motions with Invisalign by "Stanley M. Sokolow" <overbyte@earthlink.net> 9) Re: [ORTHOD-L digest 738] by teena bedi <teenabedi@usa.net>
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Sun, 26 Nov 2000 18:05:43 -0800
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 47
Subject: surg-ortho in sle patient
Date: Wed, 22 Nov 2000 17:12:17 -0800 (PST)
From: "Dr. B.L. Vendittelli" <vendittelli@yahoo.com>
To: orthod-l@usc.edu
Hello Group, Today I saw a 15.5 year old female for an orthodontic consultation. Her medical history is positive for systemic lupus (diagnosed one year ago). For this she is under the care of a rheumatologist and is well controlled with prednisone (no cardiovascular involvement either). She presents with a severe Class II skeletal malocclusion which would benefit from a sagittal split advancement. Radiographic examination show that thus far, her condyles have been spared from the disease process as there is no evidence of degenerative changes. My question is: Does this patient have a higher propensity for condylar resorption if a mandibular advancement is performed? Thanks, Bruno L. Vendittelli Toronto, Canada __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/
Subject: lingual orthodontics
Date: Wed, 22 Nov 2000 16:56:47 -0800 (PST)
From: "Dr. B.L. Vendittelli" <vendittelli@yahoo.com>
To: orthod-l@usc.edu
Hello Group, I was hoping that someone out there can elaborate on the effectiveness of maxillary arch expansion using lingual appliances (i.e. expanded archwire). Thanks, Bruno L. Vendittelli Toronto, Canada __________________________________________________ Do You Yahoo!? Yahoo! Photos - 35mm Quality Prints, Now Get 15 Free! http://photos.yahoo.com/
Subject: Invisalign
Date: Wed, 22 Nov 2000 11:57:38 -0400
From: "Dr. Robert Hatheway" <drbob@nb.sympatico.ca>
To: "Orthodontic Study Club (E-mail)" <ORTHOD-L@USC.EDU>
I am wondering about anyones experiences with an in house lab. I have been giving it some thought and I posted this question a couple of weeks ago to this group but I didnt get any responses. I thought if I would title it Invisalign, it would at least be read!!
Does anyone have any strong feelings one way or another regarding an in house lab? I would be interested in all comments.
Thanks
Bob
Hatheway Orthodontics
Dr. Robert Hatheway
126 Brunswick Street
Fredericton, NB, E3B 1G6
CANADA
(506) 455-9775 (work)455-0213 (home)454-0742 (fax)
mailto:drbob@nb.sympatico.ca (e-mail)
http://www.hathewayorthodontics.com/ (internet)
Subject: electronic insurance
Date: Wed, 22 Nov 2000 08:31:00 -0500
From: "Leon Klempner" <DrK@i-2000.com>
To: <orthod-l@usc.edu>
I am an orthotrac used and have an electronic claim feature for processing insurance. I believe the company is called Envoy? My staff tells me it's not worth using because too many companies do not accept it or require their own proprietary forms. Is anyone using electronic claims successfully? Comments? Leon Klempner L.I., N.Y.
Subject: RE: Occlusoguide
Date: Wed, 22 Nov 2000 07:28:39 -0800
From: "Stanley M. Sokolow" <overbyte@earthlink.net>
To: steve_larcombe@lineone.net
CC: "orthod-l@usc.edu" <orthod-l@usc.edu>, Larry Mickey <lmickey@aaortho.org>
Dear Dr. Larcombe: Occlusoguide is a product of the Ortho-Tain company, owned by a Chicago, Illinois, based orthodontist but with manufacturing facilities in Puerto Rico. They sell directly to doctors. Here is a link to their web site: http://www.ortho-tain.com/ which gives contact information. Occlusoguide is a preformed positioner with channels for the deciduous molars and incisors, so that the transition from deciduous to permanent dentition is accommodated without interference by interproximal struts of plastic. I have used the appliance as a mixed dentition positioner between phase I and phase II treatment. They work well as an eruption guidance appliance and to maintain a Class II correction achieved in the first phase. They may also have applications as a pre-fabricated funtional appliance. Like any removable appliance, they depend fully upon patient cooperation. Sincerely yours, Stanley M. Sokolow, DDS overbyte@earthlink.net
Subject: craniofacial articles on the net
Date: Wed, 22 Nov 2000 06:41:23 EST
From: Orthodmd@aol.com
To: orthod-l@usc.edu
Hi Hi! Could anyone tell me where can I get the full list of the published = craniofacial growth series edited by McNamara? And how can I purchase them through internet? Thank you very much. Franklin She Orthodontic resident, Hong Kong They are available at Needham Press http://www.needhampress.com Best wishes Charlie Ruff
Subject: Torquing motions with Invisalign
Date: Wed, 22 Nov 2000 21:43:56 -0800
From: "Stanley M. Sokolow" <overbyte@earthlink.net>
To: "orthod-l@usc.edu" <orthod-l@usc.edu>
Dear Colleagues:
Align Technology still hasn't posted or answered my simple question asking whether aligners can producing torquing motion, and if so, how rapidly. I knew that clinical research on Invisalign was being done at UOP Dental School in San Francisco, California, so today I emailed the same question to Dr. Robert Boyd, chairman of the orthodontic department there. He promptly send this reply and consented to my posting of his answer on this listserver:
> Dear Stanley,
> I have done torquing movements with Invisalign. It is necessary to overcorrect the positions on the computer just as
you would with fixed appliances. Divots are usually not necessary for incisors to be torqued. The overcorrection is
needed because of the lack of rigidness of the Aligner material in the last fraction of a mm of movement.
> Bob Boyd
I am still baffled by Align Technology's apparent stonewalling of the torquing question.
Meanwhile, I read the S-1 form filed by Align Technology with the SEC (Securities and Exchanges Commission) which is a prelude to an initial public offering of stock (IPO). The S-1 gives a lot of information about the company. In it, I read that Align Technology plans to change their shipping schedule of aligners early in 2001. They plan to ship all of the aligners for the whole case all at once. I had visions that this was a ploy to boost their income by collecting the lab fee up front for the whole case. Financial arrangements for new patients would need to be changed, and soon.
I sent a question to the Certified Doctors' message board at Align Tech, and here's the reply that was promptly posted (less than 24 hours later):
Dear Dr Sokolow,
You are correct that we have decided to change the pattern of
batch shipments. This change is part of our continuing
efforts to provide customers with greater certainty about
delivery dates and to simplify our manufacturing process. We
expect the change to be implemented in the first quarter of
2001. A more specific communication of the date and the
implications of the change will be made to all our customers
shortly.
Our current policy of shipping Aligners in batches minimizes
the waste that sometimes occurs due to mid course
corrections. However, our experiences since launch have
shown us that almost all cases run through to completion
without such a correction.
As part of the switch to shipping all Aligners in a single
batch we will introduce some further changes. While the
details are not final, we intend to:
1.Modify our invoicing to the effect that customers
benefit from receiving Aligners upfront but do not
have to pay for all of them immediately
2.Introduce a financing program aimed at making
Invisalign more affordable for patients while enabling
the orthodontist to be paid up front. Taken together
these two policies should improve the pattern of cash
receipts and payments for our customers
3.Redesign our packaging to reduce the size of the
boxes in which we ship Aligners. New case start boxes
are also being reduced in size.
We are delighted to hear you have several patients ready to
enter treatment. We hope to provide more detail on these and
other initiatives shortly.
Ike Udechuku
Vice President Corporate Strategy
Align Technology
I hope this information helps others who are trying the Invisalign method.
Sincerely yours,
Stanley M. Sokolow, DDS
overbyte@earthlink.net
Subject: Re: [ORTHOD-L digest 738]
Date: 22 Nov 00 10:58:45 MST
From: teena bedi <teenabedi@usa.net>
To: orthod-l@usc.edu
Dear Franklin She thanks for replying Well it really doesnt matter to me what nationality the orthodontist is from as long as he or she is good at their job!So plz post me some adds or their emails i will let the patient decide which nationality they prefer!Maybe they would be more comfortable with a UK person. My email is teenabedi@usa.net By the way which part od MDS are you in? Part1 or 2? Let me know if i can help you in any way coz i believe the Indian way of teaching is very similar to yours and do send me your email. bye and many thanks. orthod-l@usc.edu wrote: ORTHOD-L Digest 738 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) complication in serial extraction. by Punnoose George <geoliz@emirates.net.ae> 3) Where to buy Craniofacial Growth Series? by "Franklin She" <shetsangtsang@graduate.hku.hk> 4) Re: Wilkodontics by "Paul M. Thomas" <pm.thomas@gte.net> 5) product question from U.K. by "Mickey, Larry" <lmickey@aaortho.org> 6) program directors and financial questions by Orthodmd@aol.com 7) Re: ORTHOD-L digest 735 by "Paul M. Thomas" <pm.thomas@gte.net> 8) Torquing with Invisalign by "Stanley M. Sokolow" <overbyte@earthlink.net> 9) by "Paul Zuelke" <zuelke@msn.com> 10) RE: Hong Kong orthodontist by a9318565 <a9318565@graduate.hku.hk> > --------------------------------------------- > Attachment: > MIME Type: multipart/digest > --------------------------------------------- > --------------------------------------------- > Attachment: > MIME Type: multipart/alternative > --------------------------------------------- > --------------------------------------------- > Attachment: > MIME Type: multipart/alternative > --------------------------------------------- > --------------------------------------------- > Attachment: > MIME Type: multipart/alternative > --------------------------------------------- > --------------------------------------------- > Attachment: > MIME Type: multipart/alternative > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain; charset=us-ascii; format=flowed > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain;charset=iso-8859-1 > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain;charset=big5 > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain;charset=Windows-1252 > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain; charset=US-ASCII > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain;charset=Windows-1252 > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain; charset=iso-8859-1 > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain; format=flowed > MIME Type: text/plain > --------------------------------------------- > --------------------------------------------- > Attachment: text/plain; charset=ISO-8859-1 > MIME Type: text/plain > --------------------------------------------- ____________________________________________________________________ Get free email and a permanent address at http://www.netaddress.com/?N=1
Date: Sun, 26 Nov 2000 23:26:27 -0700
To: info@aaortho.org
From: Dennis Knoles <dknoles@lds.net>
Subject: office planning and design
Cc:
Bcc:
X-Attachments:
I am in the process of designing an office. The dimensions are 30'x20'. Do you have ideas for a floor plan for this size space. Waiting room, business and reception, sterilization, lab, 4 chair operatory, pan x-ray and darkroom and a private office are needed but no restroom. The 20' dimension is the north and south walls. There is a 4x6' furnace room on the northeast corner of the office space the 4' side is on the north.The entry door is on the north side next to the furnace room. There are 2 6'wide windows on the west and one on the south. If you can help please contact me soon by e-mail or fax at 1-801-294-6979. Thank you. Dr. Dennis Knoles AAO #0005770
From: orthod-l@usc.edu
To: Electronic Study Club for Orthodontics <orthod-l@usc.edu>
Subject: ORTHOD-L digest 745
Date: Wed, 13 Dec 2000 02:34:10 PST
ORTHOD-L Digest 745
Topics covered in this issue include:
1) ESCO - The Electronic Study Club for Orthodontics
by Joseph Zernik <orthodl@hsc.usc.edu>
2) Re: Tom Pearson's question about Jones-jig
by "Paul M. Thomas" <pm.thomas@gte.net>
3) Re: Canine guidance, Dr.Roth and the ABO
by "Paul M. Thomas" <pm.thomas@gte.net>
4) root resorption
by "Leon Klempner" <DrK@i-2000.com>
5) Re: Ectodermal Dysplasia
by "Paul M. Thomas" <pm.thomas@gte.net>
6) Do AJO 044 first
by Joseph Zernik <orthodl@hsc.usc.edu>
7) Fw: DISTRACTION OSTEOGENISIS
by ABRAHAM LIFSHITZ <alifshitz@mexis.com>
8) RE: Gabby Thodas' comment on torquing with Invisalign
by Stanley Sokolow <overbyte@earthlink.net>
9) Invisalign
by MDLhome <mdlively@adelphia.net>
10) Re: Gabby Thodas' comment on torquing with Invisalign
by Stanley Sokolow <overbyte@earthlink.net>
11) [Fwd: Gabby Thodas' comment on torquing with Invisalign]
by "Stanley M. Sokolow" <overbyte@earthlink.net>
<< message4.txt >>
<< message6.txt >>
<< message8.txt >>
<< message10.txt >>
<< message12.txt >>
<< message14.txt >>
<< message16.txt >>
<< message18.txt >>
<< message23.txt >>
<< message26.txt >>
<< message28.txt >>
ORTHOD-L Digest 745 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) Re: Tom Pearson's question about Jones-jig by "Paul M. Thomas" <pm.thomas@gte.net> 3) Re: Canine guidance, Dr.Roth and the ABO by "Paul M. Thomas" <pm.thomas@gte.net> 4) root resorption by "Leon Klempner" <DrK@i-2000.com> 5) Re: Ectodermal Dysplasia by "Paul M. Thomas" <pm.thomas@gte.net> 6) Do AJO 044 first by Joseph Zernik <orthodl@hsc.usc.edu> 7) Fw: DISTRACTION OSTEOGENISIS by ABRAHAM LIFSHITZ <alifshitz@mexis.com> 8) RE: Gabby Thodas' comment on torquing with Invisalign by Stanley Sokolow <overbyte@earthlink.net> 9) Invisalign by MDLhome <mdlively@adelphia.net> 10) Re: Gabby Thodas' comment on torquing with Invisalign by Stanley Sokolow <overbyte@earthlink.net> 11) [Fwd: Gabby Thodas' comment on torquing with Invisalign] by "Stanley M. Sokolow" <overbyte@earthlink.net>
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Tue, 12 Dec 2000 22:21:02 -0800
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 52
Subject: Re: Tom Pearson's question about Jones-jig
Date: Sun, 10 Dec 2000 10:27:31 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "Dr. Henning Madsen" <madsenh@t-online.de>, "ESCO" <ORTHOD-L@USC.EDU>
Henning, I think your assessment is right on target. In the mid-1980's I had a brief flirtation with the Cetlin approach to molar distalization and non-extraction treatment. I treated enough patients to come to the same conclusion you have reached and raised the same questions as Tom Pearson. I ended up in many cases with end to end molar relationships and residual overjet after having loss a good bit of the distalization. Of course this made camouflage treatment with the extraction of upper first premolars a "slam dunk" as we say in the states. This approach to treatment (molar distalization with a gadget) is likely to be unpredictable and problematic as long as we are using teeth as the anchorage units. This may be one application where the implantable anchorage devices could offer an advantage...both in movement and retention during the remainder of treatment. Unfortunately we are limited in the selection of available devices. To my knowledge, the ITI system is the only FDA approved device. Nobel Biocare recently discontinued the clinical trial on the Onplant anchorage device due to lack of patient enrollment. I assume this means the project is either on the shelf or on indefinite hold. I'll be curious to see the response of others re: molar distalization and would challenge proponents to demonstrate long-term, predictable (meaning time after time) clinical success. Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 --- Original Message ----- From: "Dr. Henning Madsen" <madsenh@t-online.de> To: "ESCO" <ORTHOD-L@USC.EDU> Sent: Saturday, December 09, 2000 5:53 AM Subject: Re: Tom Pearson's question about Jones-jig > Dear colleagues, > > I would propose to extend the question about the effectiveness of the Jones > jig to all other popular molar-distalisation devices, like the Pendulum, > Distal Jet etc. because no matter how different these appliances look, the > basic idea is the same. > As far as I have noticed, there have been published nearly a dozen studies > on these more-or-less non-compliance molar distalisation appliances. My > resume of these studies is the following: > 1. between to thirds and three fourths molar distalization > 2. between one third and one fourth of anchorage loss, i.e. undesireable > mesialization of anterior teeth > 3. considerable distal tipping of the distalized molar, which means that the > roots and the center of resistance have not been distalized to the same > extent as the crown. > > An important drawback of all the published studies is that the amount of > distalization/anchorage loss is measured at the moment after the greatest > amount of distalization has been achieved. In clinical practice this is the > start of a difficult treatment phase during which the molars should be > uprighted and kept in place at the same time, whereas the anterior teeth > should drift distally or be distalized. If the studies had included this > second treatment phase, the result would have been less favorable. Given > that on average one fourth of anchorage loss happens during distalization, > the loss of another fourth during the following treatment procedures would > make the whole treatment strategy worthless. > Of course uprighting a distally tipped molar tends to bring rather the crown > forward than the root backward, and of course any attempt to use the > distally tipped molar as anchorage for retracting anterior teeth will end in > loss of anchorage. So Tom Pearson asked the right question in his message. > In the end the superimposition of initial and final cephs in some cases will > show only round tripping, in others successful holding of the molar position > (even this would be a favorable result), and in a few cases a small amount > of true distalization. > > I have treated a dozen cases with these appliances. In fery few cases I saw > good distal tipping with virtually no loss of anchorage, in one case I had > hardly any distalization, but considerable loss of anchorage. The better > studies also indicate unpredictability of the results, which is an important > disadvantages of these appliances. > I will continue to try molar distalization appliances, but I think they are > technically rather demanding and the whole procedure is more complicated > than it seems on first glance. Proper case selection may improve the results > - I think class II/2 cases are more suitable than II/1, the skelettal > discrepancy should not be too much, and in those appliances that use a Nance > button for anchorage, a steep palate would be more favorable than a shallow. > > Nevertheless, most of the published studies seem to be too optimistic on > molar distalization appliances. The procedures should be very critically > reevaluated, restricted to the most suitable cases or eventually discarded. > > Dr. Henning Madsen > Ludwigstr. 36 > 67059 Ludwigshafen > Germany > www.madsen.de > >
Subject: Re: Canine guidance, Dr.Roth and the ABO
Date: Sun, 10 Dec 2000 10:06:12 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "Kevin C. Walde" <kdkrj@swbell.net>,
"Orthodontic Study Club" <ORTHOD-L@USC.EDU>
To my knowledge, there is little hard science to support the gnathology dogma of the various gurus. This was pointed out by Chuck Greene at a symposium during the AAO San Diego meeting. He suggested forming Olympic Teams of all the various gnathology "camps". Let them train, get uniforms and meet once every four years in a competition to see whose dogma was superior. If there was a winner, they could sport the gnathology gold medal for the next four years. Until we stop viewing the condyle and fossa as the flesh and blood equivalent of an articulator, we (the specialty at large) will be.....excuse the term....."dogged" by dogma. The prudent clinician is left to decipher, sort and filter writings and lectures in an effort to determine whether there is any scientific basis for the commandments being promulgated. Unfortunately there will always be the group seeking the "holy grail" in addition to those who have seen the "white buffalo". The latter are the more disconcerting since they become ardent disciples without questioning the clothing of the emperor. Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 ----- Original Message ----- From: "Kevin C. Walde" <kdkrj@swbell.net> To: "Orthodontic Study Club" <ORTHOD-L@USC.EDU> Sent: Wednesday, December 06, 2000 1:23 PM Subject: RE: Canine guidance, Dr.Roth and the ABO > What I'm about to write will probably be considered blasphemy but here > goes: Which commandment says "Thou shalt create canine guidance!"? Yes > it's a nice treatment goal but I submit to you that there are plenty of > perfectly healthy people running around without it. I recently heard > Dr. Roth speak at a seminar and found him to be quite interesting, > informative and a dedicated orthodontist. He along with Dr. Straty > Righellis gave a presentation on the merits of mounting models and > canine guidance was an important treatment goal. However, nothing in > their presentation proved that canine guidance was essential for proper > function! Is the "classic cusp to groove Class I cuspid" > nonfunctional? Bye-the-way, since when does the ABO have to answer to > Dr. Roth or any other individual orthodontist for that matter? > > Sincerely, > > Kevin Walde, DDS,MS, Washington, MO > >
Subject: root resorption
Date: Sun, 10 Dec 2000 11:35:10 -0500
From: "Leon Klempner" <DrK@i-2000.com>
To: <orthod-l@usc.edu>
During my 20+ years of practice, I've used many different approaches to checking the roots of patients undergoing fixed appliances. What are your criteria for taking radiographs to check for root resorption in patients undergoing fixed treatment? Do you take any additional x-rays during treatment? Panoramic? Occlusal? Periapical? Nothing? What are you doing? Leon Klempner Long Island, NY Leon S. Klempner, DDS Diplomate, American Board of Orthodontics CoolSmiles.com http://www.coolsmiles.com E-Mail: DrK@Coolsmiles.com Voice: 631.289.0909 Fax: 631.289.0918
Subject: Re: Ectodermal Dysplasia
Date: Sun, 10 Dec 2000 09:50:42 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "Ronny Marks" <ronnymar@bigpond.com>, "ESCO" <orthod-l@usc.edu>
Ronny, Anybody's experience will probably be limited. I've treated two adults with a mixture of orthodontics, implants and orthognathic surgery, but there may be some application to younger patients. I think it's a little tougher when you have a variant with oligodontia. Then you deal with the issue of continued eruption of teeth in the same arch with the implants. At least you won't have to deal with this problem in the maxilla. The key (to quote the famous axiom) is to begin with the end in mind. This means doing the ceph analsysis and treatment simulation/model surgery to see where the skeltal bases need to be positioned. This should allow placement of the implants in a position where they can be used for both the expansion and ultimate restoration. The implants, of course, will provide the untimate anchorage for the expansion you anticipate. If you need width across the posterior maxilla (likely) then you may need surgically assisted rapid palatal expansion (SARPE) as your surgeon suggests since orthopedic gives a "V" shaped change with diminishing expansion as you go further posteriorly. The key to good posterior expansion with SARPE is relief at the zygomatic/maxillary butress. As the expansion device is activated, the alveolus tends to rotate out and up a little and binds at the butress. Some extra relief in that area prevents that problem and allows the posterior expansion to occur. In addition, grafting may be necessary if there is inadequate ridge width due to no eruption process. The expansion should be very stable if retained initially with the expansion device and ultimately with a framework for a fixed/detachable, spark erosion prosthesis or something similar. I would worry about the stability of doing a conventional denture retained by single implants which are not interconnected. Hope this helps. Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 ----- Original Message ----- From: "Ronny Marks" <ronnymar@bigpond.com> To: "ESCO" <orthod-l@usc.edu> Sent: Wednesday, December 06, 2000 2:59 AM Subject: Ectodermal Dysplasia > Ectodermal Dysplasia Syndromes? > > The ectodermal dysplasia syndromes, (abbreviated EDS), are a group of > genetic disorders which are identified by the absence or deficient > function of at least two derivatives of the ectoderm. (i.e. teeth, hair, > > nails, glands) > > Why discuss the subject in an orthodontic forum where teeth are missing? > > Patient is 12 years old that has no upper teeth. > Maxilla is deficient and narrow. > The Dentist has proposed the placement of implants. > The Orthodontist has suggested maxillary expansion using the implants as > > abutments to expand the maxilla as a means of coordinating the dental > arches to facilitate a proththesis. > The Oral surgeon proposes surgical expansion. > > Have you had any experience in treating such cases? > > Dr Ronny Marks > Specialist Orthodontist > Sydney > Australia > > > > > >
Subject: Do AJO 044 first
Date: Tue, 12 Dec 2000 23:14:16 -0800
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
DO IT!!!
Subject: Fw: DISTRACTION OSTEOGENISIS
Date: Mon, 11 Dec 2000 21:08:09 -0600
From: ABRAHAM LIFSHITZ <alifshitz@mexis.com>
To: Electronic Study Club Orthodontics <orthod-l@usc.edu>
> > Suggest simultaneous maxillary and mandibular distraction with wire or elastic > fixation. This will level the occlusal plane and elongate the mandible in the > vertical dimension. appliances required, if teenager/adult full conventional > ortho appliance. If young child, primary dentition, use custom made arch bars > cemented to first permanent molars and secured with circumdental wires. Hope > this helps. > > Alvaro_Figueroa@rush.edu > > >
Subject: RE: Gabby Thodas' comment on torquing with Invisalign
Date: Sun, 10 Dec 2000 20:05:04 -0800
From: Stanley Sokolow <overbyte@earthlink.net>
To: orthodas@aol.com
CC: Electronic Study Club for Orthodontics <orthod-l@usc.edu>
Dear Gabby:
Thanks for your input. In spite of my efforts and private communications by phone and email with Ross Miller (the orthodontic director at Align Technology) and with the V.P. of Corporate Strategy, the company still hasn't posted my simple questions about the torquing capabilities of aligners. I'm baffled because I am trying hard to believe that the company has been forthcoming about other limitations of aligners as expressed in their case selection criteria. I just can't understand why they won't make an official statement on the ability or inability of aligners, or even a hedged statement that they are still researching the subject.
I'm curious about your comment on torquing. To whom did you speak who said that aligners can't torque? Was it an employee of Align Technology, a private orthodontist who has this theory or who has had actual failure to achieve torque movements, or a researcher who came up with non-torquing results in a study?
Sincerely,
Stan Sokolow, DDS
overbyte@earthlink.net
Gabby Thodas wrote:
Regarding root torque capabilities of the invisalign appliance - cannot be
done according to the person I spoke to due to the need to position the
needed attachments gingivally which weakens the aligner thus reducing its
effectiveness.
Gabby Thodas
orthodas@aol.com
Subject: Invisalign
Date: Sun, 10 Dec 2000 23:19:57 -0500
From: MDLhome <mdlively@adelphia.net>
To: ESCO <orthod-l@usc.edu>
I just wanted to thank everyone for their kind words in response to my posting this week. I was glad to read that so many feel the same way that I do about the new system. It is my understanding that they are looking to go public about the time the two wonderful kids and their investors reach full vestment allowing them to sell shares immediately and rake in millions of dollars. I guess they will worry about any problems caused by the appliance, or maybe not, after they sell enough to make their millions. Hearing that many orthos are not getting answers to their questions makes sense if you think about it. Keep selling those units and deal with the problems after the company goes public. You wouldn't want anything to delay the IPO or the investors might be a little upset, not to mention the founders. Of course, this is just my humble opinion and not to be taken as factual until it can be proven as such. Consider it a theory. Mark -- Mark David Lively, DMD mdlively@adelphia.net Lively Orthodontics, P.A. 106 N. Colorado Avenue Stuart, FL 34990
Subject: Re: Gabby Thodas' comment on torquing with Invisalign
Date: Mon, 11 Dec 2000 13:36:40 -0800
From: Stanley Sokolow <overbyte@earthlink.net>
To: Orthodas@aol.com
CC: Electronic Study Club for Orthodontics <orthod-l@usc.edu>
Dear Gabby: Thanks for your quick reply. Scott Rehage is apparently an employee of Align Technology. Do you know if he's a staff orthodontist or a non-orthodontist? In any case, your problem with distal root torque is interesting. Apparently, aligners can upright teeth by tipping them into available space, but not grab onto them and torque the root with a center of rotation in the crown, according to my interpretation of what Scott Rehage told you. This principle would also apply to mesial root torquing, but it may be a different matter when it comes to bucco-lingual torquing. It seems to me that mesial-distal root torque requires that the aligner flex or stretch in the mesio-distal direction when the appliance is inserted. The polycarbonate plastic is very tough and can bend but not stretch well, so the mesio-distal root movement may not be mechanically possible. Bucco-lingual movements could be easier than mesio-distal movements for that reason. The shape of the aligner allows it to flex bucco-lingually (opening the trough of the aligner at the displaced tooth) and the flex acts as the stored energy to move the tooth. Do you think Scott was ruling out mesio-distal root torquing or all directions of root torquing? It is curious that a demonstration case on the Invisalign web site shows a single-lower-incisor extraction case where the animation of the treatment built into the aligners includes root paralleling movements as the incisors and canines are moved mesio-ditally to close the extraction site. Check it out at: http://www.invisalign.com/html/explore/patientsection/MoC1_demo_lower.html . Since no x-rays are shown on the web site, it's hard to be sure, but it appears that the aligners tried to move the root apices toward the extraction site but the actual case photos seem to show tipping into the gap, in spite of attachments on the lower incisors. Until we receive some authoritative information on this, I would be skeptical about any Invisalign ClinCheck treatment animation that includes moving the apex of a tooth in any manner other than the movement that comes from pure tipping as from a single-point force contact. Even if the movement is built into the aligner because of wishful thinking, the aligners may not make that movement at all. Official silence on this is leaving Align Technology open for disappointed patients and disappointed orthodontists. That can't be a rational corporate strategy. We can live within the parameters of Invisalign's limitations, if we only could be fairly sure that we understand those limitations. I wonder if any other member of ESCO has had any experience or received any comments from those-in-the-know about root torquing. Does anyone have a finished case or case-in-progress that demonstrates root torquing? Thanks, Stan Sokolow, DDS Redwood City, CA overbyte@earthlink.net Orthodas@aol.com wrote: > Scott Rehage. He called me concerning a case that hadn't finished correctly. > I had requested distal root torque on tooth #8 on the finishing form. When > he first called he said he would plan an attachment more gingivally to help > with the torque. Then he called back later that day after a meeting and said > that they couldn't torque the root because the gingivally placed attachments > were causing splitting and tearing of the aligners. I assume that torque was > discussed at that meeting. I can't remember exactly how he worded it but he > essentially said that torquing movements were pretty much beyond the scope of > aligner effectiveness. > gabby.
Subject: [Fwd: Gabby Thodas' comment on torquing with Invisalign]
Date: Tue, 12 Dec 2000 12:46:24 -0800
From: "Stanley M. Sokolow" <overbyte@earthlink.net>
To: "orthod-l@usc.edu" <orthod-l@usc.edu>
Subject: Re: Gabby Thodas' comment on torquing with Invisalign
Date: Tue, 12 Dec 2000 11:25:30 EST
From: Orthodas@aol.com
To: overbyte@earthlink.net
Scott Rehage is a non-orthodontist that works on the computer preparation of cases for Clincheck. From my conversation with him I believe that mesial-distal root torque is not possible with the current technology. Gabby Thodas
ORTHOD-L Digest 747 Topics covered in this issue include: 1) ESCO - The Electronic Study Club for Orthodontics by Joseph Zernik <orthodl@hsc.usc.edu> 2) VJO table of contents by gabriele floria <editor@vjco.it> 3) Re: Tom Pearson's question about Jones-jig by "Paul M. Thomas" <pm.thomas@gte.net> 4) Re: Molar distilization by "Paul M. Thomas" <pm.thomas@gte.net> 5) Molar Distalization with the Jones Jig by "Pramod Sinha" <yerbendr@hotmail.com> 6) Tom Pearson'squestion about the Jones-jig by "Dott. Carano" <a.carano@libero.it> 7) Molar Distalization by DraKahn@aol.com 8) Re: ORTHOD-L digest 745 by "Paul M. Thomas" <pm.thomas@gte.net> 9) Re: Canine guidance, Dr.Roth and the ABO by "Paul M. Thomas" <pm.thomas@gte.net> 10) Root Resorption by "Maurie Costello" <braces@costellodental.com.au> 11) Is not this interesting??? by David Lebsack <dml-4266@ccp.com> 12) Invisalign Torque and other issues. by "Dr. Ross Miller" <ross@aligntech.com> 13) Fw: New Web Page:Amendment by "Maurie Costello" <braces@costellodental.com.au> 14) About the international fellowship ? by "clkuo-GiGa" <clkuo1@mail.giga.net.tw> 15) by zorana nikolic <princess_zo_zo@yahoo.com> 16) 1st International Meeting - Jet Family by "Dr. Bill Machata" <drmac@americanortho.com>
Subject: ESCO - The Electronic Study Club for Orthodontics
Date: Wed, 20 Dec 2000 13:52:05 -0800
From: Joseph Zernik <orthodl@hsc.usc.edu>
To: ORTHOD-L@usc.edu
Dear Colleague: The Electronic Study Club for Orthodontics (ESCO) is a free forum for exchange of information and opinions among orthodontists, and for distribution of professional information. * What information can you get on ESCO? * How to subscribe to ESCO? * How to change your address? * How to post messages on ESCO? For answers to these questions and more, please check our web site: http://www-hsc.usc.edu/~jzernik/eclub.htm Enjoy! Sincerely, Joseph H. Zernik, D.M.D. Ph.D. Professor, Department of Orthodontics University of Southern California http://www-hsc.usc.edu/~jzernik/ 54
Subject: VJO table of contents
Date: Tue, 19 Dec 2000 14:18:12 +0100
From: gabriele floria <editor@vjco.it>
To: floria@dada.it
Virtual Journal of Orthodontics http://vjco.it "The first free Journal on the net" Table of Contents for Issue 3.3 December 2000 http://vjco.it/vjo033.htm -------------------------------------------------------------- ORIGINAL ARTICLES Juvenile Rheumatoid Arthritic Condylar Degeneration by Richard N Carter DMD, MS Portland Oregon USA http://www.vjo.it/033/jracd.htm (english version) http://www.vjo.it/033/jracds.htm (spanish version) http://www.vjo.it/033/jracdt.htm (italian version) --- Orthodontic History: Edward Hartley Angle by Gabriele Flora DDS Firenze Italy http://www.vjo.it/033/angle.htm (italian vers.) ---- Il trattamento delle disfunzioni cranio-cervico-mandibolari (quinta parte) (only italian, english, and hispanic versions under construction) by Umberto Montecorboli MD, DDS Piacenza Italy http://www.vjo.it/033/dccm5t.htm --- La valutazione del software per personal computer in uno studio ortodontico http://www.vjo.it/033/comport.htm by Gabriele Flora DDS Firenze Italy READERS SERVICES Editorial by Gabriele Floria VJO editor http://www.vjo.it/033/ed033.htm (english vers.) http://www.vjo.it/033/ed033s.htm (spanish version) http://www.vjo.it/033/ed033t.htm (italian version) Orthodontic Meeting Database http://vjco.it/search.htm Orthodontic Department in the World http://www.vjco.it/orthodep.htm Opportunities http://www.vjco.it/inserzi.htm Keywords Search Engine http://vjco.it Apologies for cross-posting and mistakes Dr. Gabriele Floria DDS editor@vjco.it
Subject: Re: Tom Pearson's question about Jones-jig
Date: Sat, 16 Dec 2000 12:01:18 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "Nanda,Ravindra" <Nanda@nso.uchc.edu>, <orthod-l@usc.edu>
Ravi, Nice to hear from you....Things are chilly in NC, but otherwise well. Prof is finishing his last appt, so we are looking for a new chair. I should have known we could expect a nice biomechanical explanation from the UConn folks. The headgear concept, of course, is a nice way to hold the crown and distalize the roots. And it's probably possible to get an adult to do it reliably...kids seem to be a mixed bag. Also the intrusion auxiliary (Burstone or otherwise) is a nice touch. I suspect one could use "long arm" mechanics to move the roots, provided the crown could be held. Most of the commercial devices promise something for nothing...and it just doesn't work that way as you've nicely illustrated. Best, -=Paul=- Paul M. Thomas ----- Original Message ----- From: "Nanda,Ravindra" <Nanda@nso.uchc.edu> To: <orthod-l@usc.edu> Sent: Wednesday, December 13, 2000 11:02 AM Subject: RE: Tom Pearson's question about Jones-jig > Hi Paul > I hope all is well in North Carolina. > > I decided to put my two cents regarding the molar distalization appliances, > molar tipping and eventually molar resulting in a Class II or edge to edge > relationship. > > I agree with you 100% that molar distalization appliances along with some > highly touted commercial appliances have been introduced to the orthodontic > profession without any long (or even short) term studies. In our specialty > we often follow a bandwagon so that we are not left out. > > As far as molar distalization appliances are concerned, a biomechanical and > clinical analysis will show you that anytime you use reciprocal force, teeth > will move in opposite direction and if a pure horizontal force is below the > center of resistance you will get tipping. You may minimize side effects by > using rigid wires or tissue support but it is all smoke and mirrors. For > example, studies have shown that on an average if a molar crown is tipped > distally 4 mm. cuspid moves anteriorly 2 mm. So for example if your cuspid > was Class II by 4 mm to start with now you have 6 mm Class II. On top of > that you have 4 mm. space in front of the molar which now you have to close > by using best possible mechanics as well as cuspid will need a significant > retraction. > > Even when we are successful in tipping molar back, we must use a high pull > headgear (for 3-4 months with 12 hour nightly use) with outer bow above the > center of resistance of the molar to create a moment to bring the molar > roots back, otherwise treatment would be a failure as tipped molars usually > only upright by crown moving mesially. > > For 3 to 4 mm. molar distalization we still use intrusion arches described > first by Burstone four decades ago. Beauty of these wires is that you can > get intrusion simultaneusly if needed and on top of that you stay away from > reciprocal forces. > > Yes, I also agree with you that implants is the other possibility if > headgear is unacceptable. > > Ravi Nanda > University of Connecticut > > > > > > -----Original Message----- > From: Paul M. Thomas [mailto:pm.thomas@gte.net] > Sent: Sunday, December 10, 2000 10:28 AM > To: NANDA@NSO.UCHC.EDU > Subject: Re: Tom Pearson's question about Jones-jig > > > Henning, > > I think your assessment is right on target. In the mid-1980's I had a brief > flirtation with the Cetlin approach to molar distalization and > non-extraction treatment. I treated enough patients to come to the same > conclusion you have reached and raised the same questions as Tom Pearson. I > ended up in many cases with end to end molar relationships and residual > overjet after having loss a good bit of the distalization. Of course this > made camouflage treatment with the extraction of upper first premolars a > "slam dunk" as we say in the states. > > This approach to treatment (molar distalization with a gadget) is likely to > be unpredictable and problematic as long as we are using teeth as the > anchorage units. This may be one application where the implantable > anchorage devices could offer an advantage...both in movement and retention > during the remainder of treatment. Unfortunately we are limited in the > selection of available devices. To my knowledge, the ITI system is the only > FDA approved device. Nobel Biocare recently discontinued the clinical trial > on the Onplant anchorage device due to lack of patient enrollment. I assume > this means the project is either on the shelf or on indefinite hold. > > I'll be curious to see the response of others re: molar distalization and > would challenge proponents to demonstrate long-term, predictable (meaning > time after time) clinical success. > > Paul M. Thomas, DMD, MS > Adjunct Associate Professor > Departments of Orthodontics and > Oral and Maxillofacial Surgery > UNC School of Dentistry > Manning Drive > Chapel Hill, North Carolina 27514 > > > > > --- Original Message ----- > From: "Dr. Henning Madsen" <madsenh@t-online.de> > To: "ESCO" <ORTHOD-L@USC.EDU> > Sent: Saturday, December 09, 2000 5:53 AM > Subject: Re: Tom Pearson's question about Jones-jig > > > > Dear colleagues, > > > > I would propose to extend the question about the effectiveness of the > Jones > > jig to all other popular molar-distalisation devices, like the Pendulum, > > Distal Jet etc. because no matter how different these appliances look, the > > basic idea is the same. > > As far as I have noticed, there have been published nearly a dozen studies > > on these more-or-less non-compliance molar distalisation appliances. My > > resume of these studies is the following: > > 1. between to thirds and three fourths molar distalization > > 2. between one third and one fourth of anchorage loss, i.e. undesireable > > mesialization of anterior teeth > > 3. considerable distal tipping of the distalized molar, which means that > the > > roots and the center of resistance have not been distalized to the same > > extent as the crown. > > > > An important drawback of all the published studies is that the amount of > > distalization/anchorage loss is measured at the moment after the greatest > > amount of distalization has been achieved. In clinical practice this is > the > > start of a difficult treatment phase during which the molars should be > > uprighted and kept in place at the same time, whereas the anterior teeth > > should drift distally or be distalized. If the studies had included this > > second treatment phase, the result would have been less favorable. Given > > that on average one fourth of anchorage loss happens during distalization, > > the loss of another fourth during the following treatment procedures would > > make the whole treatment strategy worthless. > > Of course uprighting a distally tipped molar tends to bring rather the > crown > > forward than the root backward, and of course any attempt to use the > > distally tipped molar as anchorage for retracting anterior teeth will end > in > > loss of anchorage. So Tom Pearson asked the right question in his message. > > In the end the superimposition of initial and final cephs in some cases > will > > show only round tripping, in others successful holding of the molar > position > > (even this would be a favorable result), and in a few cases a small amount > > of true distalization. > > > > I have treated a dozen cases with these appliances. In fery few cases I > saw > > good distal tipping with virtually no loss of anchorage, in one case I had > > hardly any distalization, but considerable loss of anchorage. The better > > studies also indicate unpredictability of the results, which is an > important > > disadvantages of these appliances. > > I will continue to try molar distalization appliances, but I think they > are > > technically rather demanding and the whole procedure is more complicated > > than it seems on first glance. Proper case selection may improve the > results > > - I think class II/2 cases are more suitable than II/1, the skelettal > > discrepancy should not be too much, and in those appliances that use a > Nance > > button for anchorage, a steep palate would be more favorable than a > shallow. > > > > Nevertheless, most of the published studies seem to be too optimistic on > > molar distalization appliances. The procedures should be very critically > > reevaluated, restricted to the most suitable cases or eventually > discarded. > > > > Dr. Henning Madsen > > Ludwigstr. 36 > > 67059 Ludwigshafen > > Germany > > www.madsen.de > > > > >
Subject: Re: Molar distilization
Date: Sat, 16 Dec 2000 12:02:45 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "David Lebsack" <dml-4266@ccp.com>, <orthod-l@usc.edu>
Outstanding! Let's see the 100 consecutively treated cases with stable molar distalization. Maybe I can be "re-converted". Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 ----- Original Message ----- From: "David Lebsack" <dml-4266@ccp.com> To: <orthod-l@usc.edu> Sent: Wednesday, December 13, 2000 8:54 PM Subject: Molar distilization > Subject: > Re: Tom Pearson's question about Jones-jig > Date: > Sun, 10 Dec 2000 10:27:31 -0500 > From: > "Paul M. Thomas" <pm.thomas@gte.net> > To: > "Dr. Henning Madsen" <madsenh@t-online.de>, "ESCO" > <ORTHOD-L@USC.EDU> > > > > Henning, > > I think your assessment is right on target. In the mid-1980's I had a > brief > flirtation with the Cetlin approach to molar distalization and > non-extraction treatment. I treated enough patients to come to the same > > conclusion you have reached and raised the same questions as Tom > Pearson. I > ended up in many cases with end to end molar relationships and residual > overjet after having loss a good bit of the distalization. Of course > this > made camouflage treatment with the extraction of upper first premolars a > > "slam dunk" as we say in the states. > > This approach to treatment (molar distalization with a gadget) is likely > to > be unpredictable and problematic as long as we are using teeth as the > anchorage units. This may be one application where the implantable > anchorage devices could offer an advantage...both in movement and > retention > during the remainder of treatment. Unfortunately we are limited in the > selection of available devices. To my knowledge, the ITI system is the > only > FDA approved device. Nobel Biocare recently discontinued the clinical > trial > on the Onplant anchorage device due to lack of patient enrollment. I > assume > this means the project is either on the shelf or on indefinite hold. > > I'll be curious to see the response of others re: molar distalization > and > would challenge proponents to demonstrate long-term, predictable > (meaning > time after time) clinical success. > > Paul M. Thomas, DMD, MS > Adjunct Associate Professor > Departments of Orthodontics and > Oral and Maxillofacial Surgery > UNC School of Dentistry > Manning Drive > Chapel Hill, North Carolina 27514 > > Response; > > I am very happy with the pendulum appliance and distal jetT appliance. > These appliances took alot of their design from Cetlin. > > D.M. Lebsack DDS MS > >
Subject: Molar Distalization with the Jones Jig
Date: Sun, 17 Dec 2000 09:36:35 -0800
From: "Pramod Sinha" <yerbendr@hotmail.com>
To: ORTHOD-L@USC.EDU
CC: yerbendr@aol.com
Dear Friends: Thank you for reading the article carefully. I appreciate your questions and will be happy to help you understand the implications of the results. At the outset, I must mention that I have no professional or financial interest in touting this appliance or any other technique. This study was done to meet requirements for my student's Thesis. Also, I might add that one-year retention data is currently under analysis for a future report. Before I get into the specific answers to the inquiries, let me detail the following facts regarding Cl II non-extraction treatment and growth and development of the maxilla: 1. The molar distalization reported relative to the pterygoid vertical is similar to that reported in other studies using different mechanics like Hubbard et. al.(1), Ghosh and Nanda(2), Herbst appliance(3-5), Wilson(6), repelling magnets(7-11) and other Thesis projects that I have recently worked with which I could reference for you if needed. The results from pretreatment to posttreatment are almost identical to that reported by Hubbard et. al.(1). In that study(1), it was reported that after completion of orthodontic treatment on a sample of patients treated by the Kloehn headgear (from Dr. Kloehns practice), the molars were corrected to a class I occlusion in every case, however, the molars had migrated 1.6mm, which was similar to other studies in literature(12,13). This closely mimics the results of the present study that reported 1.5mm (approximately). 2. Numerous studies have reported the effects of distalizing mechanics, however, most studies have limited their examination to pretreatment (T1) to post-distalization (T2). Hence, the effects of the edgewise treatment that follows, have not been reported which leads to this mesial migration over the course of treatment. However, one must not forget the effects of growth and development on the mesial migration of the maxillary molar and the maxilla14. 3. Growth and development results in a downward and forward movement of the maxilla, along with which the maxillary molars obviously move forward. 4. Concurring with Dr. Hubbards(1) findings, this study reported a 2mm mesial restriction of the maxillary molar (on completion of orthodontic treatment) when compared to the Class I normals14. 5. Class II correction is almost always a combination of maxillary molar distalization, mandibular growth and mesial migration of the mandibular molar among other factors. 6. The distalization of maxillary molars, as mentioned earlier by Gianelly (8&9) and others, should be to overcorrect the relationship to a Class III. 7. As with any procedure, there are technique specific rules that must be followed to ensure succesful treatment. 8. The article reported anchorage loss that occurs with the appliance, which is no different from any other distalizing applaince. The molars moved 1.5mm forward from pretreatment to completion of orthodontic treatment that is similar to Dr. Hubbards results on the Kloehn headgear treatment. Results from both these studies show a restriction of the maxillary molar by 2mm when compared to class I normals(14). Secondly, growth of the maxilla moves the first molar along with it relative to the pterygoid vertical and hence you see a mesial movement. Class 2 correction occurs as a result of a combination of factors. I hope this discussion helps you understanding the issue better. Thank you for the inquiry. Pramod K. Sinha, DDS, BDS, MS Clinical Professor, Center for Advanced Dental Education St. Louis University References: 1. Hubbard GW, Nanda RS and Currier GF. A cephalometric evaluation of nonextraction cervical headgear treatment in Class II malocclusions 64(5):359-370, 1994. 2. Ghosh J. and Nanda RS. Evaluation of an intraoral maxillary molar distalization technique. Am J Orthod. 110:639-646, 1996. 3. Pancherz H. Treatment of Class II malocclusions by jumping the bite with the Herbst appliance. A cephalometric investigation. Am J Orthod. 76:423-442, 1979. 4. Pancherz H and Anehaus-Pancherz M. The headgear effect of the Herbst appliance: A cephalometric long-term study. Am J Orthod. 103(6):510-520, 1993. 5. Pancherz H. The mechanism of Class II correction in Herbst appliance treatment; a cephalometric investigation. Am J Orthod. 82:104-113, 1982. 6. Muse DS, Fillman MJ, Emmerson WJ and Mitchell RD. Molar and incisor changes with the Wilson rapid molar distalization. Am J Orthod. 104:556-565, 1993. 7. Blechman AM. Magnetic force systems in orthodontics. Am J Orthod. March, 1985. 8. Gianelly AA, Vaitas AS, Thomas WM, and Berger DG. Distalization of molars with repelling magnets. J Clin Orthod 22:40-44, 1988. 9. Gianelly AA, Vaitas AS and Thomas WM. The use of magnets to move molars distally. Am J Orthod. 96:161-167, 1989. 10. Bondemark L and Kurol J. Distalization of maxillary first and second molars simultaneously with repelling magnets. Eur J Orthod. 14:264-272, 1992. 11. Itoh T, Tokuda T, Kiyosue S, Hirose T, Matsumoto M and Chaconas SP.Molar distalization with repelling magnets. J Clin Orthod. 25:611-617, 1991. 12. Wieslander L. The effect of orthodontic treatment on the concurrent development of the craniofacial complex. Am J Orthod Dentofac Ortho 1963;49:1527. 13. Cangialosi TJ, Meistress ME, Leung MA, Ko JY. A cephalometric appraisal of edgewise Class II nonextraction treatment with extraoral force. Am J Orthod Dentofac Orthoped 1988;93:315324. 14. Riolo M, Moyers RE, McNamara JA, Hunter WA. An atlas of craniofacial growth, Cephalometric standards from the University School Growth Study. The University of Michigan, Copyright 1974. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com
Subject: Tom Pearson'squestion about the Jones-jig
Date: Tue, 19 Dec 2000 15:22:35 +0100
From: "Dott. Carano" <a.carano@libero.it>
To: <ORTHOD-L@USC.EDU>
Dear colleagues,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
although molar distalization is not a new topic in orthodontics, only in recent years non compliance molar distalization mechanics have become very popular because of the minimal request of patient cooperation.
I agree that the ideal distalization is a bodily distalizationfor three major reasons: it is more stable than a distalization with tipping, reduces the risk of bite opening, reduces the time of treatment in comparison to other mechanics where it is necessary to upright the roots after the initial distal crown tipping.
At the present the Distal Jet is the only appliance that moves the molars bodily during distalization. Infact with the Distal Jet the line of action of the distalizing force passes close to the center of resistance of the first molars. This affermation, that seems too optimistic, could be easily discarded or accepted if you try few cases with this appliance; the good control of the distal bodily movement could be measured with an intraoral x-ray.
The anchorage loss is still a problem during the distalization with intra-arch forces. I have noticed that it is inversely proportionate to the amount of intercuspation of the premolars, so if I have a cusp to cusp relationship of the bicuspids in order to improve achorage stability I can add some acrilic resin on the occlusal surfaces and extend the occlusal contacts.
Finally I am in agreement with you that molar distalization is not indicated for all Class II treatment and a good selection has to be elaborate during the diagnosis.
Best wishes of a Marry Christmas and Happy New Year,
Aldo Carano
Taranto, Italy
Subject: Molar Distalization
Date: Sat, 16 Dec 2000 14:02:22 EST
From: DraKahn@aol.com
To: orthod-l@usc.edu
Dr. Nanda, It is always a pleasure reading your impute in Biomechanics, since you are one of my orthodontic mentors. Can you comment on distalization with the Herbst Appliance? Even though the Herbst is an orthopedic appliance, it is said that it can work as a distalizing appliance if the maxillary molars are not tied back. In my experience I can get lots of molar intrusion and space between the second bi and the first maxillary molars. However it is hard to asses the distalization clinically because of the forward positioning of the lower molar. Thanks, Sandra Kahn Redwood City CA ------------------------------------------------------------------------------ ------ Hi Paul I hope all is well in North Carolina. I decided to put my two cents regarding the molar distalization appliances, molar tipping and eventually molar resulting in a Class II or edge to edge relationship. I agree with you 100% that molar distalization appliances along with some highly touted commercial appliances have been introduced to the orthodontic profession without any long (or even short) term studies. In our specialty we often follow a bandwagon so that we are not left out. As far as molar distalization appliances are concerned, a biomechanical and clinical analysis will show you that anytime you use reciprocal force, teeth will move in opposite direction and if a pure horizontal force is below the center of resistance you will get tipping. You may minimize side effects by using rigid wires or tissue support but it is all smoke and mirrors. For example, studies have shown that on an average if a molar crown is tipped distally 4 mm. cuspid moves anteriorly 2 mm. So for example if your cuspid was Class II by 4 mm to start with now you have 6 mm Class II. On top of that you have 4 mm. space in front of the molar which now you have to close by using best possible mechanics as well as cuspid will need a significant retraction. Even when we are successful in tipping molar back, we must use a high pull headgear (for 3-4 months with 12 hour nightly use) with outer bow above the center of resistance of the molar to create a moment to bring the molar roots back, otherwise treatment would be a failure as tipped molars usually only upright by crown moving mesially. For 3 to 4 mm. molar distalization we still use intrusion arches described first by Burstone four decades ago. Beauty of these wires is that you can get intrusion simultaneusly if needed and on top of that you stay away from reciprocal forces. Yes, I also agree with you that implants is the other possibility if headgear is unacceptable. Ravi Nanda University of Connecticut
Subject: Re: ORTHOD-L digest 745
Date: Sat, 16 Dec 2000 12:22:19 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "daniel ryan" <djryan21@hotmail.com>, <orthod-l@usc.edu>
I am familiar with the approach you mention and there have been one or two case reports describing the use of fixation hardware. We have chosen to try to take the approach of animal research, followed by clinical trial followed by clinical use. Although the fixation hardware has been used in static situations, there's not much science regarding it's use under immediate load. I supervised a thesis involving a preliminary dog study which is now complete and the results (bone histology) looked promising with custom fixation screws. The orthopedic bone anchors were less successful. Hopefully, this will be in print soon. There have been enough problems in the past with rushing new gadgets to the marketplace (e.g. Teflon Proplast) that I prefer to line up the dominos rather than short cut the process. Hopefully, something soon which will stand the test of time. Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 ----- Original Message ----- From: "daniel ryan" <djryan21@hotmail.com> To: <orthod-l@usc.edu> Sent: Friday, December 15, 2000 1:41 AM Subject: Re: ORTHOD-L digest 745 > > Dr. Thomas, > > Have you ever encorporated the Skeletal Anchorage System (SAS) into your > surgical treatment regarding anchorage? As you know, this Japanese system > has the advantage of using miniplates which are very similar to the plates > used in fixating jaw fractures. These gentlemen spoke to us in Buffalo and > some of the results were amazing. Not only with the distalization of > molars, but the intrusion of molars. I wanted to ask if anyone is doing > this type of treatment down at UNC. > > Thanks, > > Dan Ryan. > > > > >From: orthod-l@usc.edu > >To: Electronic Study Club for Orthodontics <orthod-l@usc.edu> > >Subject: ORTHOD-L digest 745 > >Date: Wed, 13 Dec 2000 02:34:10 PST > > > > > > ORTHOD-L Digest 745 > > > >Topics covered in this issue include: > > > > 1) ESCO - The Electronic Study Club for Orthodontics > > by Joseph Zernik <orthodl@hsc.usc.edu> > > 2) Re: Tom Pearson's question about Jones-jig > > by "Paul M. Thomas" <pm.thomas@gte.net> > > 3) Re: Canine guidance, Dr.Roth and the ABO > > by "Paul M. Thomas" <pm.thomas@gte.net> > > 4) root resorption > > by "Leon Klempner" <DrK@i-2000.com> > > 5) Re: Ectodermal Dysplasia > > by "Paul M. Thomas" <pm.thomas@gte.net> > > 6) Do AJO 044 first > > by Joseph Zernik <orthodl@hsc.usc.edu> > > 7) Fw: DISTRACTION OSTEOGENISIS > > by ABRAHAM LIFSHITZ <alifshitz@mexis.com> > > 8) RE: Gabby Thodas' comment on torquing with Invisalign > > by Stanley Sokolow <overbyte@earthlink.net> > > 9) Invisalign > > by MDLhome <mdlively@adelphia.net> > > 10) Re: Gabby Thodas' comment on torquing with Invisalign > > by Stanley Sokolow <overbyte@earthlink.net> > > 11) [Fwd: Gabby Thodas' comment on torquing with Invisalign] > > by "Stanley M. Sokolow" <overbyte@earthlink.net> > ><< message4.txt >> > ><< message6.txt >> > ><< message8.txt >> > ><< message10.txt >> > ><< message12.txt >> > ><< message14.txt >> > ><< message16.txt >> > ><< message18.txt >> > ><< message23.txt >> > ><< message26.txt >> > ><< message28.txt >> > > ____________________________________________________________________________ _________ > Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com > >
Subject: Re: Canine guidance, Dr.Roth and the ABO
Date: Sat, 16 Dec 2000 12:14:27 -0500
From: "Paul M. Thomas" <pm.thomas@gte.net>
To: "Mark Cordato" <markc@ix.net.au>,
"Orthodontic Study Club" <ORTHOD-L@USC.EDU>
All good questions (regarding what should be considered important)....and I'm not sure we have good answers. I see people doing fine with either group function or canine guidance and I've seen the same "gnathologist" argue for each under different circumstances. There *is* some research to suggest that trying to make CO=CR is a waste of time since the "equillibration" doesn't hold-up longitudinally. I guess I'm from the camp which thinks teeth should be esthetically pleasing in the anterior region and be able to chew in the posterior region (reasonable alignment and fit). When we (those concerned with gnathology within the specialty) start compulsive fine-tuning and tweaking I have to wonder whether they are satisfying a patient need or some internal need of their own. Paul M. Thomas, DMD, MS Adjunct Associate Professor Departments of Orthodontics and Oral and Maxillofacial Surgery UNC School of Dentistry Manning Drive Chapel Hill, North Carolina 27514 ----- Original Message ----- From: "Mark Cordato" <markc@ix.net.au> To: "Orthodontic Study Club" <ORTHOD-L@USC.EDU> Sent: Thursday, December 14, 2000 3:29 PM Subject: Re: Canine guidance, Dr.Roth and the ABO > Dear Kevin, Paul, > > On 10 Dec 00, at 10:06, Paul M. Thomas wrote: > > I think this thread was started with a comment the the Indian board > was in error for not using Ron Roth's concept of canine position. I > would start by saying that as an orthodontist you should be able to > move teeth where you want them to move. If the Indian Board says it > wants maxillary canines upright and you are presenting cases to the > board then I would upright the canines. Unless you have previously > discussed your treatment objectives and received an answer in writing > that suggests you can use a different goal. As Paul notes there are > many gnathological Nirvanas and you have your guru showing you one > that works for you. > > The risk is that we say most occlusal treatment objectives are > suspect so all I will bother to do is align the front six teeth and > don't give a damn about the rest. > > > To my knowledge, there is little hard science to support the > > gnathology dogma of the various gurus. This was pointed out by Chuck > > Greene at a symposium during the AAO San Diego meeting. He suggested > > forming Olympic Teams of all the various gnathology "camps". Let them > > train, get uniforms and meet once every four years in a competition to > > see whose dogma was superior. If there was a winner, they could sport > > the gnathology gold medal for the next four years. > > The passion of the various gnathology groups often conflicts with the > published lit from reasonable clinical trials. And its true, the > dogma of "you NEED" this articulator and this is the only way to get > CR etc etc. But..... > > > Until we stop viewing the condyle and fossa as the flesh and blood > > equivalent of an articulator, we (the specialty at large) will > > be.....excuse the term....."dogged" by dogma. The prudent clinician > > is left to decipher, sort and filter writings and lectures in an > > effort to determine whether there is any scientific basis for the > > commandments being promulgated. Unfortunately there will always be the > > group seeking the "holy grail" in addition to those who have seen the > > "white buffalo". The latter are the more disconcerting since they > > become ardent disciples without questioning the clothing of the > > emperor. > > 1 How much of a CR-CO shunt is OK? (AP? lateral?) > 2 Is it alright to not worry about balancing and protrusive > interferences? > 3 How aligned is aligned? Should we bother with the back teeth (PMs > & Ms)? > > I'm going to expect that you would think that no CR-CO shunt, > especially lateral was present. That you would not have balancing nor > protrusive interferences and the aligment has some of the features > that Angle described in 1907. I also expect that if you followed ABO > recommendations that you will also achive the above. > > I imagine you do have some occlusal goals as a means of establishing > treatment objectives. What makes your list? > > Curve of Spee > Curve of Wison > Buccal torques > CR=CO > Canine and/or group function > Anterior guidance > Bothering with molar rotation > Routine control of 7s (when erupted) > Max and mandibualr incisor inclination and position > > The often underlying unstated guru assumtion that they achieve total > and magnificent success in every case is difficult/impossible to > believe unless they and their patients reside in a different level of > existence to low mortals like myself. > > > Paul M. Thomas, DMD, MS > > Adjunct Associate Professor > > Departments of Orthodontics and > > Oral and Maxillofacial Surgery > > UNC School of Dentistry > > Manning Drive > > Chapel Hill, North Carolina 27514 > > > > ----- Original Message ----- > > From: "Kevin C. Walde" <kdkrj@swbell.net> > > To: "Orthodontic Study Club" <ORTHOD-L@USC.EDU> > > Sent: Wednesday, December 06, 2000 1:23 PM > > Subject: RE: Canine guidance, Dr.Roth and the ABO > > > > > > > What I'm about to write will probably be considered blasphemy but > > > here goes: Which commandment says "Thou shalt create canine > > > guidance!"? Yes it's a nice treatment goal but I submit to you that > > > there are plenty of perfectly healthy people running around without > > > it. I recently heard Dr. Roth speak at a seminar and found him to > > > be quite interesting, informative and a dedicated orthodontist. He > > > along with Dr. Straty Righellis gave a presentation on the merits of > > > mounting models and canine guidance was an important treatment goal. > > > However, nothing in their presentation proved that canine guidance > > > was essential for proper function! Is the "classic cusp to groove > > > Class I cuspid" nonfunctional? Bye-the-way, since when does the ABO > > > have to answer to Dr. Roth or any other individual orthodontist for > > > that matter? > > > > > > Sincerely, > > > > > > Kevin Walde, DDS,MS, Washington, MO > > > > > Cheers, > Mark Cordato > Bathurst > markc@ix.net.au >
Subject: Root Resorption
Date: Sun, 17 Dec 2000 09:07:22 +1000
From: "Maurie Costello" <braces@costellodental.com.au>
To: <orthod-l@usc.edu>
Leon: I love the ( tongue-in-cheek ) comment Dr Begg used to make about this over 30 years ago. As you only see resorption after taking an x-ray, the resorption must be caused by the radiation...so don't take x-rays ! His original surgery is on display at the University of Adelaide in the Dental School. I love the camera he used for all his published articles: a viewfinder camera, with a carefully measured length of string complete with thumb-loop. Who said orthodontists wern't innovative. Dr Maurie Costello
Orthodontist
Rockhampton
AUSTRALIA
Subject: Is not this interesting???
Date: Sat, 16 Dec 2000 09:57:17 -0600
From: David Lebsack <dml-4266@ccp.com>
To: undisclosed-recipients:;
-------- Original Message -------- Subject: Re: Jan Wade Gilbert Date: Sat, 16 Dec 2000 00:37:36 -0600 From: "Ed Kendrick" <whole2th@kc.rr.com> Reply-To: "Ed Kendrick" <whole2th@kc.rr.com> To: dentistry@stat.com Newsgroups: idf.main References: <00d201c06611$318bda20$aaac9840@uv8bj> Jay sent me a copy of this newspaper ad. It isn't specific as to the connection and claims that "a 98% correlation exists between women who have menstrual problems (excessive bloating, cramping and/or bleeding) and women who also have TMJ problems." The ad further says: "It has been found that women who have excessive gynecological problems and also have TMJ problems, usually had their gynecological problems improve or completely go away after their TMJ problem was corrected." Although I've not observed this correlation personally, this may not be so far fetched. Medline research reveals a correlation of chlamydia infection with temporomandibular dysfunction. (AAOMS annual meeting in New Orleans, Dr. Charles Henry, Goldman School of Dental Medicine at Boston University) Dr. Gilbert had scheduled a conference to showcase his nutrition/dental health message on December 10 at an airport hotel in New York. Has anyone attended this meeting. What was revealed? (Please REPLY ALL so that I can receive your reply in my personal mail folder.) "Jay S. Orlikoff, DDS, FAGD" <drjay@drjay.com> wrote in message news:00d201c06611$318bda20$aaac9840@uv8bj... > He practices on Long Island. In the 1980's he ran an ad saying something > about TMJ being connected to menstrual problems and he could help women with > these problems. I saved a copy of the ad and barring my forgetfulness will > scan it in and post it on my web page with a hidden URL
Subject: Invisalign Torque and other issues.
Date: Sun, 17 Dec 2000 13:26:41 -0800
From: "Dr. Ross Miller" <ross@aligntech.com>
To: "ESCO (E-mail)" <ORTHOD-L@USC.EDU>
CC: "'overbyte@earthlink.com'" <overbyte@earthlink.com>
Hello, This posting is intended to answer questions regarding torque and other issues with the Invisalign System. Currently we have seen tooth torque on a good number of patients. These cases tend to be Class II div 2. The quality of the torque is very much dependant on the anatomy of the teeth. As in fixed appliances, compliance, biomechanics and biology work together to form some level of uncertainty. Invisalign works very well on many types of movements. Work with the strengths of the system. Case selection, good anatomy, treatment planning, and attachments will allow you to get much of the root torque and tip you require. If you are very uncertain as to the ability of Invisalign to correct a certain problem, please review the case selection criteria on pages 5-6 of the orthodontic workbook. Also, the new three-page prescription form walks you through to combination treatments and limited treatments. This should make things a little easier. It also opens the door to patients that you might have thought would not have been Invisalign candidates. If you have a patient that has a more severe malocclusion and you continue to be uncertain about a them being appropriate for Invisalign, make the patient aware of the possibility of fixed, and treatment plan for it, you may be pleasantly surprised when you don't need the fixed appliances. But if you do, the patient has been made aware of it and there are no surprises. If you plan for combinations up front it makes your consultations much more precise and cleaner. In regard to this issue, only one of my cases has gone into fixed after starting Invisalign (70 cases in treatment). The patient is a four bicuspid extraction case. The reason was mainly due to the inability to rotate the lower bicuspids (60 degree). The case was outside case selection. This possibility will be rare inside the case selection. Getting Invisalign cases under your belt is the only way to feel comfortable with these issues. There is no alternative. When evaluating movements on ClinCheck, make sure that you see smooth movements and the use of attachments for the more difficult movements are there. The biomechanics and use of the Invisalign System is new. It's going to take time for you to get used it. It can move teeth very successfully in just about every direction. Movements that require careful planning: Lower bicupids-these tend to be very round from the occlusal aspect and generally need attachments for rotations. Please do not expect rotations greater than 20 degrees. Rotate the more severe rotations around with buccal and lingual buttons or some segmental braces and c-chains before going into invisalign. Extrusion-Extrusion is somewhat difficult with Invisalign. You need to think about the biomechanics carefully. Don't expect segments to extrude, or posterior teeth to extrude. We have found that teeth do extrude, in conjunction with adjacent teeth intruding. That is you have to have a force pushing against an adjacent tooth in order to extrude it's neighbor. It's rarely pure extrusion of single teeth, a tooth extrudes when it's neighbor intrudes. Class II div 2 cases have what we are terming "relative extrusion". As they rotate around their center they can extrude relative to the teeth that are near. Lower Incisor Extraction Cases- We have seen mild root tipping in these cases to date, but feel we are making great strides to improve the quality of space closure. The use of attachments and creating simulated gable bends on the teeth on either side of the extraction site will help and you should make sure these movements and attachments are there in ClinCheck. Case selection is also very critical to these cases. Determine how far you have to move the apex. If the apex of the tooth is not far from where you want the apex to end up it's a very good candidate. If you choose extraction cases where the apex of the teeth are 10mm from where you want them to be plan to use fixed as part of "combination treatment." FYI-We did an internal study six months ago where we had orthodontists look at consecutive cases come through a number of orthodontic offices. Orthodontists that viewed the cases were of the opinion that 57% of the cases that came through the offices could be treated with Invisalign alone. With the recent national advertising, this number has gone up to around 75% because more patients are getting off the fence and seeking orthodontic treatment. If you take into account the fact that a case can be treated for 1 year with Invisalign and 6 months with fixed (combination treatment) or doing limited treatments on patients that do not want surgery or braces the numbers conceivably go much higher. Especially if you take into account this large section of combination treatments. If you can keep the braces off the teeth for a large segment of the treatment time and then finish up with fixed the patient's periodontal condition could benefit greatly. There are many ways that Invisalign can be used with most patients. We are planning a case finishing contest at the AAO in Toronto, May of next year and those of you that have been using Invisalign and would like to display a finished case or two will be given the opportunity to so. Keep an eye out for a return postcard sent to your office over the holidays. We are also in the process of getting finished cases into a bound book so you can take a look at a good number of finished cases that have been done to date. This will hopefully be available through your Align Technology Sales Representatives in the beginning of 2001. Stan, I hope I answered your questions, and again I apologize for the delay. Thanks r. Ross J. Miller DDS MS Chief Clinical Officer Align Technology 408 470 1110 ross@aligntech.com
Subject: Fw: New Web Page:Amendment
Date: Sat, 16 Dec 2000 20:43:45 +1000
From: "Maurie Costello" <braces@costellodental.com.au>
To: <orthod-l@usc.edu>
Sorry Folk: in my haste I forgot to advise the web address: http://www.costellodental.com.au Dear Friends: > > After 7 months of input from me, my web designers have finally published my > practice web page. Feel free to have a good look. I have attempted to keep > it "child friendly" ( try the Rubik Cube puzzle under Kid's Stuff ). > > The whole project was done with only one meeting with the Web Designers who > live about 300 miles from me...it was all done with emails and several > snail-mail posted Zip Drives. I supplied all the content. Some photos were > scanned, but most were digital photos. > > I'd be happy to answer any questions about what was involved, if anyone > wants to email me privately. > > Maurie Costello Orthodontist > Rockhampton Australia > > Dr Maurie Costello Orthodontist Rockhampton AUSTRALIA ----- Original Message ----- From: Maurie Costello <braces@costellodental.com.au> To: <orthod-l@usc.edu> Sent: Sunday, December 10, 2000 9:38 PM Subject: New Web Page >
Subject: About the international fellowship ?
Date: Sat, 16 Dec 2000 22:51:12 +0800
From: "clkuo-GiGa" <clkuo1@mail.giga.net.tw>
To: <orthod-l@usc.edu>
Dear everyone : My name is C. L. Kuo , I am from Taiwan R.O.C . By the support of our hospital, I have an opportunity go abroad to pursue further education or training for orthodontics about three months Does anyone know any chance or opportunity to fit my hope?? please tell me .Thanks C.L.kuo
Subject:
Date: Tue, 19 Dec 2000 01:18:19 -0800 (PST)
From: zorana nikolic <princess_zo_zo@yahoo.com>
To: orthod-l@usc.edu
Hi, My name is Zorana Nikolic and I am investigating teeth growth and development. I am using Demirian method but I am in dilemma why Demirian uses different marks for boys and girls with the same teeth development level. Please send me your answer ASAP. Thank you in advance, Zorana __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/
Subject: 1st International Meeting - Jet Family
Date: Wed, 20 Dec 2000 10:17:07 -0600
From: "Dr. Bill Machata" <drmac@americanortho.com>
To: <orthod-l@usc.edu>
Micerium SRL wishes to announce that a comprehensive one-day course focusing on treatment with Jet appliances (Distal Jet, Spring Jet, Uprighter and Mesial Jet's) will be held in Milan Italy on 24 February 2001
Scientific sessions for Doctors and workshops for the laboratory technicians will be offered.
The complete program may be viewed at by visiting Miceriums website here.
For further information contact Micerium directly at:
email - ortho@micerium.it
phone - 0039-185-727277 - ask for Paula
Note: In the US, programs may be obtained directly at:
email - drmac@americanortho.com
phone - 1-800-558-7687 Ext 133
William Machata, DDS
Director of Clinical Applications
Dear Members,Date: Fri, 12 Jan 2001 22:51:51 EST
I am seeing a 14y.o. patient with a Class I malocclusion (spacing and
rotations) with bilateral ankylosed primary second molars with no permanent
successors. The appliances were placed 8/2000 and at that time the primary
molars were below the level of occlusion by about 1-2 mm. At her last
appointment, it appears that the molars are submerging more. My treatment
plan which was agreed to by her general dentist/parents was to keep the
primary molars in place given no restorations and excellent root development.
Any suggestions?
Thanks
Rob Bruno
Subject: ankylosed primary molars with no successors.
Date: Thu, 11 Jan 2001 11:27:48 EST
From: Orthos68@aol.com
To: orthod-l@usc.edu
Dear Members,
I am seeing a 14y.o. patient with a Class I malocclusion (spacing and
rotations) with bilateral ankylosed primary second molars with no permanent
successors. The appliances were placed 8/2000 and at that time the primary
molars were below the level of occlusion by about 1-2 mm. At her last
appointment, it appears that the molars are submerging more. My treatment
plan which was agreed to by her general dentist/parents was to keep the
primary molars in place given no restorations and excellent root development.
Any suggestions?
Thanks
Rob Bruno
----- Original Message -----Date: Sun, 14 Jan 2001 21:05:16 EST
From: Orthos68@aol.com
To: orthod-l@usc.edu
Sent: Friday, January 12, 2001 12:27 AM
Subject: ankylosed primary molars with no successors.
Dear Members,
I am seeing a 14y.o. patient with a Class I malocclusion (spacing and
rotations) with bilateral ankylosed primary second molars with no permanent
successors. The appliances were placed 8/2000 and at that time the primary
molars were below the level of occlusion by about 1-2 mm. At her last
appointment, it appears that the molars are submerging more. My treatment
plan which was agreed to by her general dentist/parents was to keep the
primary molars in place given no restorations and excellent root development.
Any suggestions?
Thanks
Rob Bruno
The proposed causative agents for the wear were given as Bulaemia;
Other chemical agents (eg. Cola drinks, lemons, etc.); and, pacifiers.
I can say that bulaemia does not seem to be implicated (mother is a
nurse) although acidic-type drinks may well be. Quite why these would
affect just the palatal surfaces of the upper anterior teeth I don't
know.
From: MIKEODS@aol.com
Date: Fri, 9 Feb 2001 18:17:53 EST
Subject: Re:
To: kting@dentnet.dent.ucla.edu
Status: RO
attached is my reaction to the letters you sent. Mike
Here's a question for the collective knowledge of our group:
I use a Dentronix dry heat sterilizer and lately have noticed an
interesting phenomena regarding our older impression trays. Small beads of
solder appear on these trays after they have been sterilized. Solder is
used in the construction of the trays, but I'm surprised that the heat
(approx 380 degree) is high enough to melt the solder. Has anyone else
experienced this meltdown?
Thanks
Jon Menig