Efficient Distalization of Maxillary Molars with Temporary Anchorage Devices for the Treatment of Class II Malocclusion

Özet

Treatment of Class II malocclusion often requires maxillary molar distalization. However, when applying distalization forces on themaxillary molars, anchorage loss may occur in different degrees not only during molar distalization (such as distal tipping of maxillarymolars and mesial movement and proclination of the anterior teeth) but also during the subsequent stage of anterior teeth retraction(such as mesial movement of maxillary molars). All these movements are considered as unwanted side effects, which diminish theclinical effectiveness of distalization. Miniscrew implants can be used as temporary anchorage devices (TADs) to enhance anchorageand, if properly used, to counterbalance the side effects. Among the different available systems, the TAD-supported amda® can beconsidered as a simple, noncompliant, minimally invasive, and very efficient approach that can be used for the comprehensive treatment of patients with Class II malocclusion not only to distalize the maxillary molars bodily without or with minimal distal tipping andwithout proclination of the anterior teeth but also in combination with full-fixed appliances to retract and intrude the anterior teeth.