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Rev Stomatol Chir Maxillofac. 2011 Nov;112(5):304-8. doi: 10.1016/j.stomax.2011.08.014. Epub 2011 Oct 5.

[Orthodontic anchorage].

[Article in French]

Author information

  • 1Service de chirurgie maxillofaciale et stomatologie infantiles, hôpital Debrousse, 29 rue Soeur-Bouvier, Lyon, France. docteurpaulus@paulus-richard.com

Abstract

INTRODUCTION:

Orthodontic treatments apply forces on teeth to move them. Since there is no fixed anatomic anchorage, every orthodontic action will cause a counter-action of equal force. This is usually unwanted and strong bone anchorage is used to prevent this counter-action. These anchorages provide the fixed point required for orthodontic effectiveness.

TECHNIQUE:

We describe some devices, their implantation site, placement, and removal. Our experience is essentially based on the Lomas® and Orthocorrect® devices manufactured by Mondeal® (Germany) and on screwed anchorage devices manufactured by Stryker® (USA).

DISCUSSION:

These screwed anchorage systems allow for previously impossible treatments, especially for orthodontics applied to adults and for preprosthetic orthodontics. But these screws can induce apical migration of teeth; so it may be necessary to provide several anchorage sites. Complications are rare and usually present as root perforation.

Copyright © 2011. Published by Elsevier Masson SAS.

PMID:
21981975
[PubMed - indexed for MEDLINE]
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