Topics of the day:

1. Dental Care of Patient with OI (Osteogenesis Imperfecta)
2. Re: Osteogenesis Imperfecta
3. Re: Osteogenesis Imperfecta
4. Re: Implants for anchorage
5. Re: Implants for anchorage
6. White marks
7. Re: Canon Digital Rebel settings
8. J Dent Res Table of Contents for 1 June 2004; Vol. 83, No. 6
9. ESCO - The Electronic Study Club for Orthodontics


From: " Ronny Marks" <>
Subject: Dental Care of Patient with OI
Date: Wed, 2 Jun 2004 09:52:16 -0500

Dear Drik

Attached is some important information you need to know about osteogenesis imperfecta. I recently debanded my first case.

There are various decisions you need to make during treatment.

The case I completed was a Class II/1 mandibular deficiency with narrow maxilla. Treatment was undertaken with RME, Full banding. Surgery was not accepted.

Dr Ronny Marks
53 Grandview Street Pymble NSW 2075 Australia
PO Box 6002 Pymble 2073 Australia

(See attached Word document)


From: "John R. Christensen"<>
Subject: Re: Osteogenesis Imperfecta
Date: Wed, 2 Jun 2004 21:57:40 -0500

You should contact Dr. Tim Wright at the University of North Carolina.  Dr. Wright studies and treats individuals with DI, AI and other enamel disorders.  He also has a website that you can obtain answers about DI.

John R. Christensen
Durham, NC

From: "Roy King " <>
Subject: Re: Osteogenesis Imperfecta
Date: Wed, 2 Jun 2004 6:40 PM



From: "Azhar Kharsa" <>
Subject: Re: Implants for anchorage
Date: Wed, 2 Jun 2004 12:11:09 +0300

Paul M. Thomas Senior Research Fellow "Eastman Dental Institute London, England" has commented that my opinion is *RUBBISH*. I'd like to say that I'll be more than happy if his approach has been completely scientifically and biomechanically punctual.  At first there is no hostility in science, and I respect his personal opinion about my comment "or even if about me", but please for God's sake turn back to  Roberts W E: Dental Implants Anchorage . Epker B, Stella JP, Fish LC (Editors): Dentofacial Deformities: Integrated Orthodontic and Surgical Management, vol IV, ed2, St.Louis, Mosby, 1999

And I'm waiting for your comment. Again I respect your opinion as perhaps you have had a specific experience in such a domain that I don't understand, however please we are not  competing here, in contrary I'd like to respect each other as colleagues or even friends. 

See you.
Mhd. Azhar Kharsa Ph.D. Orth.  


From: "Paul Thomas" <>
To: "'Azhar Kharsa'" <>
Subject: RE: Implants for anchorage
Date: Fri, 4 Jun 2004 15:13:42 +0100

Dear Dr. Kharsa,

My comments were not an attack on you personally, but were directed to your statement which was unsupported by any evidence that *only* osseointegrated implants should be used for anchorage.  As someone holding a PhD, I'm sure you are aware that academic discussion/debate requires submission of evidence. 

The evidence you offer below is a book chapter published in 1999.  I know Gene Roberts quite well (as well as the editors of the text) and personally have been using a mixture of implants and implantable devices in clinical treatment since the late 1980's.  I am also aware that most of Gene's early experience involved custom or modified osseointegrated implants, not other implantable devices. 

There have been a number of publications supporting the use of implantable devices other than osseointegrated implants that extend back to 1945 ( Gainsforth, BL and Higley, LB: A study of orthodontic anchorage possibilities in basal bone. Am J Orthod Oral Surg, 31:406-17, 1945)  Since then other authors have reported on successful use of implantable devices other than osseointegrated implants. (Miniscrews as orthodontic anchorage: a preliminary report. Int J Adult Orthodon Orthognath Surg. 1998;13(3):201-9.; De Clerck H, Cornelis M, Timmerman H.  [Dental tours de force 4. The use of a bone anchor for holding upright a tipped molar in the lower jaw]Ned Tijdschr Tandheelkd. 2004 Jan;111(1):10-3; Park HS, Kyung HM, Sung JH.  A simple method of molar uprighting with micro-implant anchorage.J Clin Orthod. 2002 Oct;36(10):592-6.)  I can provide more references if you are interested. 

Devices other than implants can , in fact, be used quite successfully for orthodontic anchorage.  They are easier to place and are a fraction of the cost of osseointegrated fixtures.  Attached is an example of such a device with the driver.  In a patient having no prosthetic needs, these devices can be placed more quickly, easily and with less expense prior to being removed and discarded at the completion of treatment.The histology I have attached is from our animal study in which the anchors were loaded immediately and continually for 8 months.  No anchors were lost and the typical titanium/bone interface resembled the interface seen in osseointegration. Others have found the same.  I would refer you to: J Dent Res.  2003 May;82(5):377-81. The use of small titanium screws for orthodontic anchorage. Deguchi T, Takano-Yamamoto T, Kanomi R, Hartsfield JK Jr, Roberts WE, Garetto LP.  You will note, of course, that Dr. Roberts is a co-author on this paper which demonstrates a 97% success rate in their study of immediately loaded microscrews.  Perhaps the most important factor is not the device itself (implant versus implantable device).  Quality of bone, stability at the time of placement, lack of occlusal load, and direct versus indirect application are all factors, more so than the device. ( Roberts WE.  When planning to use an implant for anchorage, how long do you have to wait to apply force after implant placement? Am J Orthod Dentofacial Orthop.  2002 Jan;121(1):14A.)

Paul M Thomas, DMD, MS
Senior Research Fellow
Department of Orthodontics
Eastman Dental Institute
256 Gray's Inn Road
London WC1X 8LD
+44 20 7915 1000 Ext 2365

From: "Charles J. Ruff" <>
To: "The Electronic Study Club for Orthodontics" <ESCO@LISTSERV.UIC.EDU>
Subject: white marks
Date: Wed, 2 Jun 2004 14:41:37 -0400

Back in 1995 on the recommendation of Dr. Zachrisson, I started using Saga sealent prior to bonding brackets. Dr. Z at the May 1995 AAO meeting claimed this was the best sealent in the world because it would last for approximately 18 months and would cure through and through with no oxygen inhibition layer to worry about. It worked as advertised and my anterior decals dropped dramatically.

Around 2000 (prior to 9/11) the company based in Oslo, Norway started to experience shipping problems because Saga is acetone based and there were issues of air freight. After 9/11, "fa get about it".

I also started using the Sondhi indirect resin system and for the last year or so my experience with white marks has been outrageous. Any thoughts on whether this was due to the Sondhi system or just a problem from my end because we can no longer rely on the protective effects of the Saga sealent.

I have been thinking of incorporating the Reliance Pro Seal sealent into my procedures and for direct bonding this would work well but for indirect bonding I think it would lead to an increase in flash and cleanup time. Anybody using flouride varnish on a regular basis?

Charlie Ruff


From: "alc" <>
Subject: Re: Canon Digital Rebel settings
Date: Wed, 2 Jun 2004 23:49:55 +0800

Thanks for your info on 300D.

I'm curious about the focusing issue. We usually use the viewfinder to focus with an SLR camera; the digital camera changed our habit to use the LCD screen to do the job. I would like to know which one that you use when shooting intraorally ? By the way, how is the picture printout? I've used a Canon G1 and the colors tend to be slightly pinkish.

Now I'm using the Nikon 4500, color is fine but the focusing speed is slow and there is another problem with it. The LCD shuts off when I press the shutter release – that means that I won't be able to “see” the target for about 0.5-0.7second – this often causes hand movement and missed framing.

Pei -Lin Chen

Taipei, Taiwan


Subject: J Dent Res Table of Contents for 1 June 2004; Vol. 83, No. 6
Date: Thursday, May 20, 2004 9:23 PM

JDR -- Table of Contents Alert

A new issue of Journal of Dental Research has been made available:

1 June 2004; Vol. 83, No. 6

Past, Present, and Future
     Anthony J. (Tony) Smith
     J Dent Res 2004;83 444-445
Nurturing a Culture of Innovation
     Dominick P. DePaola
     J Dent Res 2004;83 446-447
Genetics of Human Taste Perception
     U.-K. Kim, P.A.S. Breslin, D. Reed, and D. Drayna
     J Dent Res 2004;83 448-453
Biomaterials  Bioengineering
Comparative Study on Adhesive Performance of Functional Monomers
     Y. Yoshida, K. Nagakane, R. Fukuda, Y. Nakayama, M. Okazaki, H.
     Shintani, S. Inoue, Y. Tagawa, K. Suzuki, J. De Munck, and B. Van
     J Dent Res 2004;83 454-458

In vivo and in vitro Permeability of One-step Self-etch Adhesives
     S. Chersoni, P. Suppa, S. Grandini, C. Goracci, F. Monticelli, C.
Yiu, C. Huang, C. Prati, L. Breschi, M. Ferrari, D.H. Pashley, and F.R.
     J Dent Res 2004;83 459-464

Characterization of Apatite Formed on Alkaline-heat-treated Ti
     N. Chosa, M. Taira, S. Saitoh, N. Sato, and Y. Araki
     J Dent Res 2004;83 465-469

Nanomechanical Properties of Facial Sutures and Sutural Mineralization
     P. Radhakrishnan and J.J. Mao
     J Dent Res 2004;83 470-475

Shear Properties of the Temporomandibular Joint Disc in Relation to
Compressive and Shear Strain
     E. Tanaka, N. Kawai, K. Hanaoka, T. van Eijden, A. Sasaki, J.
Aoyama, M. Tanaka, and K. Tanne
     J Dent Res 2004;83 476-479
Dynamic Intra-articular Space Variation in Clicking TMJs
     D.B. Gossi, L.M. Gallo, E. Bahr, and S. Palla
     J Dent Res 2004;83 480-484
The Severity of Periodontal Disease is Associated with the Development
of Glucose Intolerance in Non-diabetics: The Hisayama Study
     T. Saito, Y. Shimazaki, Y. Kiyohara, I. Kato, M. Kubo, M. Iida, and
T. Koga
     J Dent Res 2004;83 485-490
Dental Pulp Fibroblasts Contain Target Cells for Lysophosphatidic Acid
     R. Gruber, B. Kandler, C. Jindra, G. Watzak, and G. Watzek
     J Dent Res 2004;83 491-495

Dentonin, a Fragment of MEPE, Enhanced Dental Pulp Stem Cell
     H. Liu, W. Li, C. Gao, Y. Kumagai, R.W. Blacher, and P.K. DenBesten
     J Dent Res 2004;83 496-499

Clonal Persistence of Oral Fusobacterium nucleatum in Infancy
     G. Haraldsson, W.P. Holbrook, and E. Kononen
     J Dent Res 2004;83 500-504

Salivary Receptors for the Proline-rich Protein-binding and Lectin-like
Adhesins of Oral Actinomyces and Streptococci
     S. Ruhl, A.L. Sandberg, and J.O. Cisar
     J Dent Res 2004;83 505-510


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