Bone-anchored maxillary protraction: A review

Abstract

Facemasks are worn during protraction therapy for maxillary deficiency, which is used to treat skeletal class III malocclusion. The maxillary dentition has historically been linked to facemask therapy, which accounts for some of the counterproductive effects such as the chin's rotation backward and downward, the elevation of the lower anterior facial height, the proclination of the maxillary incisors, the retroclination of the mandibular incisors and the mesialization of the maxillary molars with extrusion and reduction of the overbite.