The two most commonly used surgical techniques to setback a prognathic mandible include the bilateral sagittal split osteotomy and the vertical ramus osteotomy.
二种最普遍使用正颚手术方法来改善下颚骨前突症的方法是双侧矢向面骨切开术及垂直下颚枝骨切开术。
2
Objective:To correct mandibular prognathism with the technique of sagittal split ramus osteotomy(SSRO) and extraoral vertical ramus osteotomy(EVRO).
目的：应用粗裂钻和薄刃锐利骨凿施下颌骨升支垂直截骨术和矢状劈开截骨术治疗下颌骨前突畸形。
3
PURPOSE: to evaluate the clinical effects of vertical ramus osteotomy for treatment of condylar osteochondroma.