下颌缘全长截骨治疗单侧下颌骨过度发育

目的：探讨下颌缘全长截骨治疗单侧下颌骨过度发育的疗效。方法：因美容需要进行单侧下颌骨过度发育整形手术患者5例，术前根据头颅X线正侧位片、下颌全景牙片及下颌骨CT三维重建检查对患者的下颌骨形态进行分析，并征求患者需要分别采用不同手术方法：5例全部采用下颌缘全长截骨，3例同时行双侧下颌角区外板截除。结果：所有患者手术顺利，手术时间3h左右，未发生手术并发症，经过6月～2年随防，所有患者面部轮廓改善明显，双侧基本对称，咬合关系正常，疗效明显。结论：下颌缘全长截骨对单侧下颌骨过度发育有很好的疗效。

Treatment of unilateral mandibular over-development using the full-length marginal mandibular osteotomy

Objective Explore the effect of the full-length marginal mandibular osteotomy on unilateral mandibular over-development. Methods plastic operation was performed on 5 patients with unilateral mandibular over- development as facial need. analysis the mandibular shape according to the preoperative dental panoramic film and the lower mandible reconstruction of three-dimensional CT examination of patients, adopt different operation methods according to the need of patient, the full-length marginal mandibular osteotomy was performed on all of the 5 cases, the outside board of bilateral mandibular angle was cut at the same time for 3 cases. Results After 6 months to 2 years following up postoperatively, all patients with facial contours improved significantly, the basic bilateral symmetry and the normal occlusion were clear effect. Conclusions The full-length marginal mandibular osteotomy had a very good effect on unilateral mandibular over-development.