【摘要】 目的观察双侧下颌骨矢状劈开截骨术(BSSRO)后移下颌骨对下颌升支及颞下颌关节的影响。方法采用定位头颅后前位片及薛氏关节片,研究16例成人骨性Ш类患者术前及术后下颌升支整体及关节间隙的变化。结果BSSRO术前与术后的下颌升支宽度减小,但无显著性差异。关节间隙在术后1月时有明显改变,6~12月后恢复为原位,且临床表现关节症状多有所缓解。结论BSSRO矫治成人骨性Ш类错畸形对下颌升支及颞下颌关节无显著影响。更多还原

【Abstract】 Objective To study the influence of BSSRO on mandible ramous and temporomandibular joint. Methods The radiographs of posterior anterior skull position and standard Schuller’s position were taken to examine the position changes of mandible ramous and temporomandibular joint in 16 cases with skeletal class III malocclusion before and after operation. Results The distances of bilateral mandible ramous decreased 6-12 months after BSSRO, but the changes were not significant. At the same time, the condylar positions changed one month after operation but returned to the original position 6 -12months after operation. The clinical symptoms of temporomandibular joint relieved in most cases. Conclusion The changes of the distances of bilateral mandible ramous and condylar positions before and after BSSRO for skeletal III cases are not significant.更多还原