|Date:||Thu, 19 Oct 2006 00:20:36 -0500|
|From:||"ESCO automatic digest system" <LISTSERV@LISTSERV.UIC.EDU>|
|Subject:||ESCO Digest - 12 Oct 2006 to 18 Oct 2006 (#2006-35)|
There are 5 messages totalling 852 lines in this issue.
Topics of the day:
1. On premolar heights-prescription brackets-reg
2. Re: indirect bonding
3. Nickel-free molar brackets
4. Re: indirect bonding
|Date:||Sun, 15 Oct 2006 16:04:15 +0530|
|From:||"Dr. M.Jayaram" <jmailankody@GMAIL.COM>|
|Subject:||On premolar heights-prescription brackets-reg|
Good to hear people calling a spade 'a spade'. Actually premolar heights are usually(about 50% of times)inadequate for ideal positioning of prescription brackets. Either rest of the bracket heights have to be compromised, or the premolar itself need to be positioned in compromise. In the latter case, typical open bite results(similar to end of twin block therapy) in the premolar area, for which "gurus" will prescribe ''W' or 'M' tailed elastics after cutting the distal section of the wire. Some heroic orthodontists have even suggested gingivectomy to enhance the clinical heights of premolars(procedure occasionally indicated to bridge abutments)! One wonders if shoe manufacturers resort to 'prescription shoes' we should be ready for plastic surgery of the feet! This is the dogma of prescriptions, particularly as applied to premolar positioning. In advertising and modelling, one always sees unrealistic premolar height, or as Adrian Becker has stated "overcorrected and at appropriate height". The tooth moving appliances are almost always shown on a finished case or ideal occlusion or typodont, instead of 'real malocclusion' case. The proponents or so called brand ambassadors preach you on 'social six' (ignore premolars and molars?) aimed primarily at making the anteriors look good ('so desires the patient'). They also argue that molar relation need not be corrected to class I occlusion( since the prescription appliance is incapable of moving the molars!) One wonders when 'open bite in the premolar area' is also sold as a viable treatment finish! In short, all is fair in 'market driven orthodontics'!
|Date:||Sun, 15 Oct 2006 20:08:31 +1000|
|From:||"Mark Cordato" <markc@IX.NET.AU>|
|Subject:||Re: indirect bonding|
I crossed over from indirect to direct bonding quite a few years ago when too many thermocure brackets fell off. I had gone to 'photo bond' primer which is higher strength than conventional ortho primers (25MPa) and Transbond. Recently I have gone back to indirect bonding a few cases. With the higher strength primers, only one bracket of a couple of hundred has come loose, I can tolerate this and I feel the accuracy is improved. Maybe in the next few months I will swing more and more over. I suppose one thing that has changed in the last few years is that I use more RMEs, some welded and others resin bonded. Any hints on how to incorporate indirect bonding with RMEs?
|Date:||Fri, 13 Oct 2006 07:36:29 -0400|
|From:||"Ron Parsons" <ronparsons@MINDSPRING.COM>|
|Subject:||Nickel-free molar brackets|
Recently I learned that GAC has discontinued selling nickel-free molar brackets . Does anyone know of a source for this item?
Atlanta , GA
|Date:||Sat, 14 Oct 2006 09:04:00 -0400|
|From:||"Michal Kleinlerer" <mkleinlerer@GMAIL.COM>|
|Subject:||Re: ESCO Digest - 11 Oct 2006 to 12 Oct 2006 (#2006-34)|
Below is the latest email from "Straight off the Wire," the electronic newsletter from the AAO. I hope it helps to answer some of your questions. I had often wondered how long OrthoClear would remain in business, considering the unbelievable name recognition Invisalign has with the general public. Unless a company produces a far superior product, clearly (excuse the pun) different than Invisalign, and has a marketing campaign that blows Invisalign out of the water, I am not sure that effective competition will ever come about.
After several communications with Align Technology Inc., the AAO believes it is important to make the following information available to its members.
Align Technology Inc., the inventor of Invisalign®, announced Sept. 28 that it will make Invisalign treatment available at no charge to patients affected by Align's recent litigation settlement with OrthoClear Inc., a competing provider of clear removable aligner therapy. As a result of the settlement, current OrthoClear patients may not be able to complete their orthodontic treatment with OrthoClear.
Align is developing its Patients First Program to transition current OrthoClear patients to the Invisalign system at no cost to the patient or doctor. Doctors will be able to submit new Invisalign cases for their OrthoClear patients at no charge, provided they submit the cases under the Patients First Program guidelines.
"By volunteering to absorb the cost of new Invisalign treatment, we hope to minimize what could otherwise be significant cost and inconvenience for doctors using OrthoClear," said Tom Prescott, president and CEO of Align Technology. "We are working to set realistic expectations with practices about the process and time involved in starting their cases, and look forward to helping doctors provide an excellent outcome for their patients."
Doctors who are not currently Invisalign-certified will be able to start their OrthoClear patients in Invisalign after completing a free provisional case submission seminar that Align is developing.
Under the terms of the settlement, OrthoClear has agreed to stop importing its aligners into the United States and will assign all of its intellectual property to Align. However, this settlement is not a merger or acquisition. Subject to OrthoClear shareholder approval, OrthoClear will discontinue all aligner business operations worldwide. Align has offered to help minimize treatment disruptions for these patients and their doctors by making Invisalign treatment available to OrthoClear patients at no additional charge from Align.
"As OrthoClear stops importing aligners into the U.S., many patients who chose removable aligner therapy will be left without a way to complete their orthodontic treatment," said Darrell Zoromski, vice president of marketing at Align Technology. "As the company that developed and leads the market for clear removable aligners, Align feels a real duty to help these patients and their doctors achieve their treatment goals. Every patient should have the opportunity to get the smile they've always wanted."
Align encourages patients to contact their doctors with questions regarding their treatment, and recommends that both doctors and patients save all OrthoClear treatment-related documentation. Information and periodic updates are available by calling Align's Patients First Program hotline at 1-866-703-6698 and at www.invisalign.com .Michal Kleinlerer, D.M.D
|Date:||Thu, 12 Oct 2006 22:50:16 -0700|
|From:||"Ganesh Somayaji" <ganeshsomayaji@YAHOO.COM>|
|Subject:||Ref: indirect bonding:|
Hi All Esco readers,
With regards to bracket position in severe under erupted premolars, or severely rotated teeth, How about trying a begg bracket to engage the wire temporarily and achieve minor tooth movement followed by a proper bracket position once satisfactory tooth movement is achieved. Since the bracket is a bit small compared to some conventional PEA brackets and a single point contact, finer tooth movements may be a bit difficult. However it could help as a starter. It acts somewhat similar to the eyelet mentioned by Dr Becker and the Single wing bracket by Dr Mc Donald