Class II, Division 1 Malocclusion treated with the Andresen Appliance followed by Fixed Orthodontics

Abstract

Introduction: Mandibular retrognathism is the most common feature in class II malocclusions. Functional appliance therapy focuses on reducing the increased overjet and overbite, establishing better conditions for mandible growth response in phase I. Phase II corrects the position of the teeth and gives an adequate stable occlusal relationship.