Biomechanical considerations for total distalization of the maxillary dentition using TSADs

Class II malocclusions have traditionally been treated as nonextraction, extraction, or orthognathic surgery depending on severity of the dental and skeletal discrepancies. To enhance function and improve esthetics with nonextraction treatment, functional appliances, tooth-borne molar distalization, and Class II elastics have been used, but they require patient cooperation and have drawbacks such as mesial movement of the anchor teeth, molar extrusion, and flaring of the incisors. Recently, with the application of temporary skeletal anchorage devices (TSADs) in patients with Class II malocclusions, clinicians have been able to achieve total distalization of the maxillary dentition without patient compliance and with less unwanted tooth movement.

Source: Seminars in Orthodontics - June 30, 2020 Category: Dentistry Authors: Jae Hyun Park, Yoon-Ah Kook, Yoon Ji Kim, Nam-Ki Lee Source Type: research