Class III malocclusion is a difficult anomaly and this deformity is not just restricted to the jaws but involves the total craniofacial complex. The treatment of skeletal class III malocclusion in adults requires orthognathic surgery combined with conventional orthodontic treatment aiming to improve self-esteem and achieve normal occlusion and improvement of facial esthetics. The aim of this case report is to describe the orthodontic surgical treatment ofa healthy 18 year old male with class III malocclusion and facial asymmetry. He reported to the department of Orthodontics in our hospital with a chief complaint of prominent lower jaw. The patient was treated with fixed edgewise appliance therapy combined with orthognathic surgery (asymmetric bilateral sagittal split ramus osteotomy). The pretreatment, presurgical, postsurgical and posttreatment records of the patient have been presented in this case report. At the end of treatment, an ideal overjet and overbite was achieved. Thus, asymmetric bilateral sagittal split osteotomy can be undertaken as the treatment option in patients with asymmetry in mandibular arch and having class III malocclusion.

Class III malocclusion, mandibular prognathism, asymmetry, bilateral sagittal