【摘要】 本文报告下颌前突44例的外科正畸治疗的经验。分析了我院50年代末到80年代初所用过的各种手术方法。髁状突切除术16例;下颌体部截骨术(其中包括颏成形术和下颌体节段切除术)10例;下颌支斜切断术(口外法)6例;下颌支矢状劈开术14例。作者介绍了这些手术的效果、并发症、适应症和禁忌症。着重介绍了下颌支矢状劈开术的经验及其并发症的防治。此外,还介绍了下颌支矢状劈开术的两个新的并发症:下颌第三磨牙冠周炎和颌后区继发凹陷畸形。并分析了它们产生的原因和预防方法。更多还原

【Abstract】 This article presents the experiences of surgical treatment of 44 cases of prognathism.The operations used in our hospital from the end of the 1950s to the begining of the 1980s are analysed.These operations are as follows:16 cases of condylectomy,10 cases of partial ostectomy of the mandible(in-cluding genioplasty and sectional ostectomy),6 cases of oblique sliding ost-eotomy of the mandibular ramus(extraoral approach)and 14 cases of sagittal split ramus osteotomy(SSRO).The results,complications,indications and contraindications of these operations are discussed.The experiences on SSRO are discussed in particular.In addition,two complications of SSRO(pcricor-onitis of the mandibular third molar and secondary depression of retromandi-bular region)are presented and their causes,prevention and management are discussed.These complications were not reported in the literatures.更多还原