Non-Surgical Clinical Protocol for the Treatment of a Class II Malocclusion in an Adult

Abstract

A 38-year-old man with a skeletal Class II division 2 malocclusion, whose chief complaints where the unaesthetic appearance and the retruded chin, showed an incompetence for proper function in the anterior region, due to the deep overbite, as observed at clinical examination. He also had a both transversally underdeveloped lower and upper arch, and the absence of teeth 18 and 27. The treatment underwent nonsurgical rapid maxillary expansion with McNamara bonded Haas, and with a Twin-Force, a fixed appliance for correcting sagittal Class II malocclusion, whose purpose is mandibular anterior repositioning, allowed the non-surgical correction of this malocclusion. The aim of this study is to evaluate the effects of the this treatment regarding: the profile, occlusion, dental-skeletal harmony of the patient, in the resolution of a case of skeletal Class II division 2 malocclusion using a Twin Force appliance in an adult. This approach have shown to have a highly acceptable treatment outcome, by correcting the transversal and sagittal problems, and reaching a stable and functional occlusion.