Management of Bimaxillary protrusion with mini screw assisted distalization
Author(s): Rahul Neldurg*
Abstract
Moderate and severe bimaxillary protrusion impair the passive lip sealing, facial and smile esthetics, creates negative impact on psychology and affects the overall quality of life of an individual. The extraction of premolars can be avoided by the use of skeletal anchorage to do en masse distalization of both dental arches. This approach brings many advantages such as: prevents premolars extraction; simplifies orthodontic mechanics; there is no volume reduction of a premolar when smiling; control of overbite and gingival exposure. The inter radicular mini screws are indicated for mild cases of bimaxillary protrusion, while extra-radicular mini screws may be indicated for more moderate to severe cases. This Case Report attempts to present a case of a19 year old female patient with skeletal class III malocclusion and bimaxillary protrusion who was successfully treated with extra-radicular mini screws (IZC and Buccal shelf mini screws).