Hemimandibular hyperplasia treated with orthognathic surgery and mandibular body osteotomy.

Surgical treatment of facial asymmetry usually involves 2-jaw orthognathic surgery. But when the size of the mandible differs a great deal between the right and left sides, as in hemimandibular hyperplasia, additional contouring surgery is required. A 20-year-old woman presented with facial asymmetry, showing marked mandibular hyperplasia of the right side. She was treated with the use of 2-jaw surgery with mandibular body osteotomy in conjunction with orthodontic intrusion. Good esthetic outcome and functional occlusion were achieved.