Date: Wed, 19 Dec 2007 00:13:30 -0600
From: "ESCO automatic digest system" <LISTSERV@LISTSERV.UIC.EDU>
Subject: ESCO Digest - 10 Dec 2007 to 18 Dec 2007 (#2007-85)
To: ESCO@LISTSERV.UIC.EDU

There are 6 messages totalling 3679 lines in this issue.

Topics of the day:
1. Retainer
2. Re: Faster Ortho
3. Re: Faster Ortho
4. Re: Ectopic maxillary molars
5. Re: Ectopic maxillary molar
6. Re: Faster Ortho

 

Date: Fri, 14 Dec 2007 17:41:54 -0600
From: "Dr. Tim Dumore" <drtimbo@DRDUMORE.COM>
Subject: Retainer

Before I go home for the weekend... I had a patient yesterday who I believe may have set a world record for fastest damaged retainer. Gave him his retainer and instruction and out the door he walked. Two, maybe three minutes later, he came back in the office wondering if he had left his retainer somewhere in the office, but it apparently wasn't here, so he left again. He walked back in again a minute or two later with his retainer in a half a million pieces...apparently after he left the first time, the retainer case had fallen out of his pocket and a car drove over it. Not sure why it wasn't in his mouth at the time; I think we might have mentioned that he was supposed to wear it. He's a good kid- I really like him, but... I also had an adult patient share a funny story; it follows, with her permission. Merry Christmas to you all. Tim Dumore, Winnipeg (2008 Canadian Association of Orthodontists meeting, Winnipeg, September 11-13) "Hi Tim Had a funny ortho moment in court last week - thought I'd share it with you...I had just spoken to the lawyer who wanted me as a witness regarding his cleint. It was just prior to my time to enter to testify. He told me to follow him and enter. I said "just a minute, I need to change my retainer" (meaning I wanted to take it off so I could talk properly!) He whirled around and looked shocked and said "what???" He saw me taking the retainer out of my mouth and said "my lady, changing a 'retainer' means a far different thing to a lawyer!" Arliss"

 

Date: Tue, 11 Dec 2007 17:25:49 -0500
From: "Gerald Zeit" <gzeit@SYMPATICO.CA>
Subject: Re: Faster ortho

Got this off the Web: Celerect uses the application of cyclic forces to move teeth in bone faster through accelerated bone remodeling. The product is a removable device, similar to a retainer, which attaches to the orthodontic archwire. The current prototype has been validated in an accepted animal model, with published results. The premise is remarkably simple. Rather than use constant (static) forces, the device applies intermittent forces (?on again/off again?) at a very low frequency (roughly 1 Hz or 60 cycles/second) to the archwire. The patient places and activates the device once daily, for twenty minutes. The applied force (between 2 ? 5 Newtons) is barely noticeable and is not uncomfortable. Patients can carry out any routine daily task during the twenty minute activation period. Most importantly, Celerect works with all existing bracket technologies, and can treat all classifications of malocclusion, therefore representing a true complement, as opposed to a substitute/competitive threat. When Celerect wins, orthodontists and ortho appliance companies (3M Unitek, SDS Ormco, Dentsply GAC; all potential strategic acquirers) also win.

Gerry Zeit
Toronto, Canada

 

Date: Tue, 11 Dec 2007 12:16:54 EST
From: "Diane Johnson" <DHMJDDS@AOL.COM>
Subject: Re: Faster Ortho

Prof Goel,

I found the below reference to OrthoAccel.  Turns out it's a UIC startup!! Interesting--with no reference to any actual orthodontists involved in its development Current News

LGSB Students Win an Award at the Rice Business Plan Competition

OrthoAccel Technologies, Inc., a biotech startup out of the University of Illinois at Chicago's Liautaud Graduate School of Business won the Conely Rose Intellectual Property Powerhouse Award and the Houston Business Journal/ Jaffe-Deutser Best Marketing and Sales Plan award at the 2006 Rice Business Plan Competition.  Team members include Matthew Christian (MBA), Colin James (MBA/MPH), Mark Kwatia (MBA), Kirk Purcell (MBA), and Anna Lisa Somera (MBA/MPH). OrthoAccel competed with over 120 teams from around the world including Harvard, MIT, Stanford, and the University of Chicago.

OrthoAccel is developing and marketing an orthodontic device called SmartBrace that promises to move teeth in 6-12 months with less pain and better long term results. The startup has been presenting its plan to investors and at competitions, hoping to secure funding for human trials on the device. OrthoAccel is one of two teams of LGSB MBA students in competing successfully in national competitions using technologies licensed from UIC's Office of Technology Management. This is the first year that the LGSB has partnered with the Office of Technology Management. The goal of the partnership is to commercialize new technologies developed at UIC and increase the number of startups coming out of the LGSB.

OrthoAccel was a finalist at San Diego State's Venture Challenge last weekend.  They will be competing at the University of Nebraska's New Ventures World Competition beginning April 7.

For more information, please contact Matthew Christian
matthew@orthoaccel.com

Now, that was only two years ago.  They have dropped the "SmartBrace" thing altogether. Now t heir web site says the "Celerect" (and who came up with that name??  I can think of a few jokes that word might make a good punch line for) is the name of the device.  It also says that a "Michael Lowe" is the CEO (not one of the above people).

"OrthoAccel's initial product, currently in development, is a mouthguard type device that will provide a small vibratory force to the teeth; placed in the mouth for 20-minutes a day it will reduce by half the time that braces need to be worn"

Now, there may be some theory here.  I'm not sure what it is, but there may be one. UIC people, is there something from the labs there that we should know about? Let's analyze the claim that "its device cuts in half the treatment time required for braces..."  They likely have absolutely no data to support this.  They have done no work at all in humans ("The company expects to begin human clinical studies at the University of Texas Dental Branch at Houston in late spring 2008.") They may have some animal work (two brackets a certain distance apart, connect together with NiTi spring, in animal with Celerect  the teeth move together in x days, instead of 2x days in the control animal).  As any orthodontist knows, the time two teeth take to move across an edentulous space has little to do with how long someone has to wear braces. If you can't even get a kid to brush his teeth twice a day (takes maybe 5 minutes) how many do you think will actually wear something, undoubtedly an uncomfortable something, for even 20 minutes per day? 20+ years ago, when we were in our ortho program, there was some interest in using electric fields to speed up bone healing and turnover (Paul Broadwater could weigh in on this topic).  The obvious application of this would initially be in fracture healing, particularly in leg bones.  I've seen a lot of my patients come in with fractured bones, and not one of them has ever had any sort of plug-in or battery-operated device to help the bone to heal.  This indicates to me that the technique either did not work or caused some sort of other problem. Anyone else have contributions on this topic?  Anyone else want to start our own startup?  According to OrthoAccel, it's a "$10. Billion dollar market" for this device.

Diane Johnson

 

Date: Tue, 11 Dec 2007 06:02:58 EST
From: JMer1997@AOL.COM
Subject: Re: Ectopic molars

Dear ESCO colleagues,

Interesting discussion on Ectopic molars.  Quite a variety of opinions. I am a strong believer in moving the molar back into place.  I have done many cases where the distal half of the root of the E was gone and after moving the molar back, the E remains in place and solid for 3 or more years.  Some times they are lost, in which case, a nance is placed on the 6's after they are moved into place. Allowing the molar to erupt mesial, then moving it back later with the 7 and 8 right against it just makes moving the molar distal even more improbable.  It is easy to move it back right at the time the ectopic eruption is noticed with a nance off of the E's, a loop around the tuberosity or retromolar pad with a small hook or loop.  Buttons are placed mesial and distal of the molars and chain or elastic thread is placed and the molar fly's back into place. Below is a case I documented several years ago.

Initial exam 6-25-02 Initial pan 6-25-02 12-4-02 (tx started 7/31/02) 3-4-03

4-29-03

2-22-05

(band is from an Upper lingual arch with Reverse pull HG hooks that was stopped due to inflamation in the E area.  Food under the tooth.  I probably should have waited until they were out prior to starting.)  Even with all of that resorbtion, the E's held up pretty well. I have had a run of these this month (3) after not seeing any for a while so this topic is fresh in my mind. With all due respect to Dave Paquette and other molar distalizers, I have yet to see anyone show me molar distalization where the root of the molar was properly distal of the crown (without extracting the Upper 7's or lots of headgear).  Because of this, letting it come forward then "distalizing" the molar later is not really a good option  Tipping the molar crown is easy and does not count in my book nor does lots of anterior movement of the incisors.  The last article I saw in the AJO featured pendulum appliances that tipped first molar and buried the second molars way off of the occusal plane.  No one ever seems to show the roots actually getting to the right place. Crowding is crowding.  I want to regain the space as soon as possible to make the case more straightforward in the future.  Unless the plan is upper Bi extraction, letting the molar come forward does not seem to me to be the best treatment. I also see a High correlation between ectopic eruption of maxillary molars and maxillary deficient Class III patients.  In those cases I want that molar back because I really try to avoid extractions in these cases because the mechanics become so difficult with the class III component.  I have had several cases that after getting the molars back, they needed an RPE (or even 2 RPEs in a couple of severe cases!) followed by reverse pull head gear to get the maxilla properly oriented to the mandible. Those are my thoughts on ectopic eruption.  Nice to see some real discussion back on the board.

John McDonald
Salem, Oregon

Date: Mon, 10 Dec 2007 13:27:11 -0500
From: "Lively Orthodontics, P.A." <mdlively@BELLSOUTH.NET>
Subject: Re: ectopic maxillary molar

Dear Rob:
Can you see any part of the first molars clinically?  With warmest personal

regards,
Mark
Mark David Lively, D.M.D. Lively Orthodontics, P.A. Phone:  772-287-3999 www.livelyorthodontics.com

 

Date: Sat, 15 Dec 2007 15:39:12 -0200
From: "Saulo Regis Jr" <sauloroj@HOTMAIL.COM>
Subject: Re: Faster Ortho

Prof. Goel    

Since a cut in half the time of orthodontic treatment would be a great advancement , I got very curious about what this OrthoAccel Inc. could be marketing. The company apparently was born in UIC. Their site is very simple and without significant information, and the majority of the links related to "OrthoAccel" in a Google search relates to some MBA prizes that they have won. But in the Houston Technology Center website, of whom OrthoAccel is a client, they describe their product as mouthguard that delivers pulsing, vibratory forces, to be used 20min/day. Seems like testing in humans will start next spring. Here's the link : http://www.houstontech.org/en/dir/?819  . We can only wait for more info than.

Saulo Regis Jr.
Dentistry Graduate Program - Orthodontics Pontifical Catholic University of Paran?Curitiba, Brazil