ALTERAÇÕES TEGUMENTARES EM PACIENTES CLASSE II DIVISÃO 1, TRATADOS COM APARELHO ORTOPÉDICO FUNCIONAL TWIN BLOCK

Abstract

This work aims to study the soft tissue changes in patients with Angle Class II malocclusion, treated with orthopedic appliances Twin Block developed by Clark (1982). The present study used a control group of 25 patients of both genders, with initial and final cephalograms, who were treated Faculty of Dentistry of Bauru-SP and a experimental group of 20 patients of both gender with initial and final cephalograms. The criterion for inclusion was the presence of Angle Class II division 1 malocclusion, with molar ratio of at least ¼ Class II, with or without crowding in patients with mixed or complete dentition, with or without teeth eruption. To verify the changes resulting from treatment between initial and final phases of the patients belonging to the sample of this study were conducted dependent t tests applied to the cephalometric variables studied. Based on the sample and the methodology used, the tegumental changes caused by therapy with twin block in orthopedic malocclusion Class II were: improvement in maxillomandibular relationship profile, increased anterior-inferior facial height, reduction of horizontal overlaps and decreased facial convexity.