Topics of the day:

1. Re: Miniplate supported Orthodontic Anchorage
2. Re: Begg Brackets; Re: Become a Patient Yourself; Miniplate supported Orthodontic Anchorage
3. Re: Begg Brackets
4. Re: Begg Brackets
5. Question
6. ESCO - The Electronic Study Club for Orthodontics

 


Date: Thu, 17 Feb 2005 11:12:26 +0100
Subject: Re: Molar intrusion by miniplate supported anchorage
From: "Dr. Henning Madsen" <info@madsen.de>
To: ESCO@listserv.uic.edu

While I have no practical experience with molar intrusion by implant anchorage, I remember a lot of publications on that issue. There have been published many articles about successful molar intrusion by implant anchorage in the last years, so we can interfere from these reports that this technique works reliably.

One article in the Int J Adult Orthod Orthognath Surg dealt also with long-term stability. They found out that 30% of vertical relapse has to be expected (Sugawara et al, IJAOOS 17(4);2002, check the link below)

http://quintpub.com/journals/aoos/abstract.php?iss2_id=83&article_id=896&art icle=1&title=Treatment%20and%20posttreatment%20dentoalveolar%20changes%20fol lowing%20intrusion%20of%20mandibular%20molars%20with%20application%20of%20a% 20skeletalanchorage%20system%20(SAS)%20for%20open%20bite%20correction

Dr. Henning Madsen
Orthodontist
Ludwigstr. 36 67059
Ludwigshafen
Germany
Tel 0049+621+59 16 80
Fax 0049+621+59 16 820
http://www.madsen.de

 


From: "Paul M Thomas" <p.thomas@earthlink.net>
To: "The Electronic Study Club for Orthodontics" <ESCO@LISTSERV.UIC.EDU>
Subject: RE: Query (Begg Brackets); Re: Become a Patient Yourself; Miniplate supported Orthodontic Anchorage
Date: Thu, 17 Feb 2005 11:26:42 -0000

I recognize that the reply by Dr. Moskowitz was *somewhat* tongue-in-cheek, but I have to admit I have found the Begg or better yet, Tip-Edge bracket to be useful on occasion.  Specifically for managing the stubborn canine root when distalizing and trying to position roots prior to implant replacement of missing laterals. (as per attached)   I've found that edgewise brackets with vertical slots still are not as efficient and convey too many undesireable forces to adjacent teeth. Regardless, the length of wire in the edentulous area makes it difficult to develop the moment needed to position the root with a siamese bracket.

In response to Dr. Reisner's query, yes....it's possible to achieve remarkable tooth movement with TADs (temporary anchorage devices).  I'm unable to access the JOMS paper at the moment, but will do so asap.  Modified screws or bone plates both can be used to achieve intrusion by providing either indirect or direct anchorage. Buccal and palatal screws are perhaps the easiest approach since there is no incision/suture involved in placement and removal.  The intrusive force is applied by running chain across the occlusal surface between the TADs.  (see attached from Ohmae et al AJODO 2001)  Aside from the issues with placement and removal, using plates for direct anchorage will tend to tip the teeth buccally as well as intrude.  If there is no desire to change transverse, some strategy will be needed to stabilize this dimension.

Kind Regards,
Paul M Thomas
Senior Research Fellow
Department of Orthodontics
Eastman Dental Institute
256 Gray's Inn Road London WCX1 8LD

(Please see the attached pictures.)

 


From: JRBeattie2@aol.com
Date: Thu, 17 Feb 2005 12:02:00 EST
Subject: Re: Query (Begg Brackets)
To: ESCO@LISTSERV.UIC.EDU

Begg brackets are originally Edward Angle's Ribbon Arch brackets (his second bracket design). Angle oriented the brackets with the slot towards the occlusal. Begg was a student of Angle's before, I think, Angle had developed the "latest and greatest" bracket design (edgewise). When Begg went home to Australia, he deveopled his technique using round wire and torquing auxilliaries rather than Angle's ribbon arches. I recollect that he wrote, with regards to the bracket oriented with the slot to the gingival, "I have turned the brackets right-side up!"

John R Beattie

 


Date: Thu, 17 Feb 2005 17:45:54 +0000 (GMT)
From: "chandrasekhar sahoo" <drcssahoo@yahoo.co.in>
Subject: Re: Begg brackets
To: esco@listserv.uic.edu

Hi Rakesh,

Reversing the begg bracket ,i think putting uprighting spring ll increase metal show ,which is obviously unesthetic.

Regards,
Sekhar

 


Date: Thu, 17 Feb 2005 17:33:58 +0000 (GMT)
From: "salini k" <muindian005@yahoo.co.in>
Subject: Question
To: esco@listserv.uic.edu

hi, i am salini, my question is... when a posterior tooth is lost its antagonist supraerupt, why dont anteriors supraerupt till they make contact with their antagonist. thank you

 


 

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