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  • Title: [Orthodontic anchorage].
    Author: Paulus C, Hartmann C.
    Journal: Rev Stomatol Chir Maxillofac; 2011 Nov; 112(5):304-8. PubMed ID: 21981975.
    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.
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