J Korean Assoc Maxillofac Plast Reconstr Surg.  2013 Mar;35(2):124-129.

Surgical and Orthognathic Treatment of Skeletal Class III Featuring Severe Transversal and Sagittal Discrepancy: A Case Report

• Ryu KS
• Lee BS
• Kim YG
• Kwon YD
• Choi BJ
• Ohe JY

Abstract

Multiple segment osteotomy orthognathic surgery serves to combine the total or segmental maxillary and mandibular correction of the dentofacial deformities with concurrent procedures to provide immediate repositioning to the dento-osseous elements. In addition, splitting the palate may often be necessary to correct a functionally poor relationship of the maxilla to the mandible or the facial skeleton by realigning the maxillary arch. In this case, the discrepancy in a bimaxillary horizontal relationship and the space between the 2nd premolar and 2nd molar was retained after lengthy preoperative orthodontic treatment. However, we could correct these dento-osseous discrepancies immediately by performing midpalatal expansion, anterior segmental osteotomy and symphyseal osteotomy with bimaxillary osteotomies. If the blood supply to each segment segments was maintained and primary closure of the operation site was feasible, multiple segment osteotomy was considered as a very effective technique for treating dentofacial deformities in vertical, transverse, and sagittal dimensions with differential repositioning of all segments.

Keyword

Orthognathic surgery; Palatal expansion; Anterior segmental osteotomy; Symphyseal osteotomy

MeSH Terms

Bicuspid
Dentofacial Deformities
Mandible
Maxilla
Molar
Orthognathic Surgery
Osteotomy
Palate
Skeleton