Maxillary Posterior Segmental Osteotomy for Correction of Skeletal Open Bite

Abstract

The treatment of skeletal anterior open bite deformity using the single-stage maxillary posterior segmental osteotomy has been followed for 5 years to evaluate the final outcome of the operation. The clinical and radiographic examination during the control period show a remarkable stable result without a relapse. Treatment planning based on clinical, ceahalometric, dental plaster model examination and tongue posture analysis allows the accurate and predictable correction of this deformity. In addition, tongue posture had shifted from anteriorly and superiorly to posteriorly and inferiorly after surgery. The stable occlusion and this improvement of tongue posture after maxillary posteriorly segmental osteotomy is an effective surgical procedure for the skeletal open bite.