抄録
Since 1989, modified sagittal splitting ramus osteotomy, as modified by Epker in 1977: for surgical correction of mandibular skeletal deformities, has been used at our hospital. Advantages of this procedure are safety, capability of rotating the distal segment horizontally, and maintaining a blood supply to the proximal segment. Compared with Obwegeser-Dal Pont's method, there were no obvious differences in operating time and hemorrhage dose, but the frequency of mental nerve paresthesia was decreased by Epker's method. Minimized soft tissue dissection and short lingual cut of the medial ramus can reduce many complications and simplify the operative procedure. It was suggested that modified sagittal splitting osteotomy by Epker's method was very useful for surgical-orthodontic correction of mandibular prognathism.
