作　　者： (黄锦华）; (卞洁）; (孟志兵）; (常财旺）; (张强）; (郭军）;

机构地区： 扬州大学附属医院-扬州市第一人民医院口腔颌面外科,江苏省扬州市225001

出　　处： 《组织工程与重建外科杂志》 2017年第4期196-197,204,共3页

摘　　要： 目的探讨下颌角截骨整形术后咬肌的变化。方法选取我科2009年7月至2015年6月收治的下颌角截骨整形术患者26例,分别在术前、术后10 d、术后1年行颌面部CT三维重建,以测量咬肌最大横截面积;同时进行咀嚼效率测定。结果全部26例患者术后10 d咬肌最大横截面积相比术前明显增加(P<0.05),术后1年最大横截面积相比术前略减小,无显著性差异(P>0.05)。术后10 d咀嚼效率相比术前明显减小(P<0.05),术后1年咀嚼效率相比术后10 d明显增大(P<0.05),和术前没有显著差异(P>0.05)。结论下颌角截骨整形术后1年,患者的咬肌功能基本恢复。 Objective To investigate the changes of masseter muscle after mandibular angle osteotomy. Methods A total of 26 patients were treated with mandibular angle osteotomy from July 2009 to June 2015. Three-dimensional reconstruction by maxillofacial CT was used to measure the maximum cross-sectional area of masseter muscle before operation, 10 days and 1 year after operation. Meanwhile, the masticatory efficiency was measured and the variance analysis was performed. Results The maximum cross-sectional area of masseter muscle increased 10 days after operation （P〈0.05）. Compared with the pre-operation, the maximum cross-sectional area decreased slightly 1 year after operation, and there was no significant difference between the 2 groups （/9〉0.05）. The mastieatory efficiency decreased significantly 10 days after operation （P〈0.05）. Compared with the 10 days post-operation, the masticatory efficiency increased significantly 1 year after operation （P〈0.05）. And there was no significant difference of masticatory efficiency between 1 year post-operation and pre- operation （P〉0.05）. Conclusion The masseter muscle function can be restored 1 year after mandibular angle osteotomy.

关 键 词： 下颌角截骨整形术 咬肌 咀嚼效率