下颌升枝矢状劈开截骨术对骨性下颌前突舌骨位置和气道宽度的影响  

Effects of sagital split ramus osteotomy surgery on hyoid position and pharyngeal airway with skeletal mandibular prognathism

作　　者：刘琳[1] 马卫东[1] 曲卫国[1] 吴平[1] 王明锋[1] 

机构地区：[1]大连大学附属口腔医院.大连市口腔医院正畸科,116021

出　　处：《实用口腔医学杂志》2007年第4期575-577,共3页Journal of Practical Stomatology

摘　　要：目的:探讨严重骨性下颌前突患者施行下颌升枝矢状劈开截骨术(sagittal split ramus osteotomy,SSRO)后,其舌骨位置及气道宽度的变化。方法:选择16例(男性5人,女性11人)严重骨性下颌前突,用固定矫治器治疗且只施行下颌SSRO术式的患者,对其正畸-正颌治疗前后的头颅侧位片进行测量和统计学分析。结果:骨性下颌前突患者施行SSRO后,气道宽度(P<0.05)、颏舌骨肌附着点间的距离(P<0.01)减小;而男性患者茎突舌骨肌附着点间的距离虽有减少,但无统计学意义。结论:严重骨性下颌前突患者单纯施行下颌骨SSRO后,气道宽度以及舌骨与下颌骨颏部间的距离明显减小,但未发现舌体和气道明显的临床症状。提示下颌施行SSRO后,舌体以及气道软组织可能存在某种生理性代偿机制。Objective：To investigate the changes of hyoid position and pharyngeal airway before and after sagittal split ramus osteotomy （SSRO） of skeletal mandibular prognathism. Methods：Sixteen severe skeletal mandibular prognathism cases（ Class Ⅲ, 5 males and 11 females） were chosen. Pre and post operation lateral cephalograms analysis reflecting pharyngeal airway and position of the hyoid bone was performed. Results： ① After SSRO, the width of airway decreased significantly. ② The distance between the mandible and the hyoid bone was also decreased significantly. No significant differences were found regarding measurements of the hyoid bone to the cranial base in male patients. Conclusion： The distance from the mandible to the hyoid bone and the width of airway were decreased significantly after SSRO. It suggests that the tongue and airway might be reformed functionally to new environments following SSRO surgical treatment.

关 键 词：骨性下颌前突 SSRO 舌骨 气道 

分 类 号：R782.2[医药卫生—口腔医学]