A Novel Approach to Correction of Class II Malocclusion with Lower Premolar Extractions

Class II malocclusion has been the subject of interest because of diversity in its presentation as well as multiple treatment strategies available to correct the same. Appropriate diagnosis of the case is very important to formulate the proper treatment plan. A 12-year-old girl presented with skeletal Class II malocclusion with retrognathic mandible and with Class I molar and canine relations bilaterally. There was sufficient overjet to advance the mandible but presence of crowding in the lower arch necessitated reduction of tooth material in the form of lower first premolar extractions so as to unravel the crowding and maintain the overjet. After closure of spaces in the lower arch, mandibular advancement was done by placing mandibular protraction appliance IV (MPA IV). An Angle Class III molar relation was achieved with Class I canines and Class I incisor relations. Treatment time was 21 months.