[摘要] 目的：探讨上颌前份节段性骨切开术矫治上颌前突畸形软组织侧貌改变，说明其稳定性。方法：对26例上颌前份节段性骨切开成年女性患者术前、术后1个月内及术后1年后的X线头影测量进行对比研究，并进行统计学分析。结果：1)术后软组织侧貌改变：上中切牙切缘点Is平均后移(6.1±2.7) mm(P<0.01)，上唇突点Ls平均后移(4.6±1.6) mm(P<0.01)，鼻唇角Cm-Sn-Ls平均增加(6.8±5.6)°(P<0.01)，上下唇间隙Stms-Stmi平均缩小(4.5±3.5) mm(P<0.01)，露齿程度Is-Stms平均减小(2.1±2.2) mm(P<0.05)，上唇突度减小，上唇厚度、长度及软组织面型角G-Sn-Pgss无显著改变(P<0.05)。2)术后1年颜面软组织侧貌改变的稳定性；与手术后早期相比，在水平方向上，所有指标复发率均超过10%。在垂直方向上，各项指标复发率均在10%以内。结论：上颌前份节段性骨切开矫正上颌前突，患者颜面软组织侧貌的改善明显，效果稳定。

    [关键词] 上颌前突 上颌前份节段性骨切开术 颜面部软组织侧貌 稳定性

    Profile Changes and Stability of Soft Tissue Following Anterior Maxillary Osteotomy in Adult Females.

    BI Chun-ying, DONG Yao-jun, YANG Xue-wen,et al.

    School of Stomatology, Wuhan University, Wuhan 430079

    [Abstract]Objective: To investigate the profile changes and stability of soft tissues following anterior maxillary osteotomy(AMO)in adult females. Methods: Cephalometric data from 26 adult female patients who were treated wite anterior maxillary osteotomy with or without a concurrent mandibular procedure were analyzed retrospectively. These patients were followed up at three time points.The preoperative radiograph (TO) was taken before surgery. The immediate postoperative radiograph (T1) was taken within one month after surgery. The third radiograph (T2) was taken 1 year after surgery. The data were analyzed statistically. Results: 1) The soft tissue profile response to AMO appeared to be effective. Incision superius decreased (6.1±2.7)mm. Labrale inferius decreased (4.6±1.6)mm. The postoperative Cm-Sn-Ls increased (6.8±5.6)mm than preoperation.Stms-Stmi and Is-Stms decreased (4.5±3.5)mm and (2.1±2.2)mm respectively. The other data changed nonstatistically. 2)The stability after one year. Changes greater than 10% were seen for all soft tissue landmarks at horizontal direction. At vertical direction, changes of all datashowed less than 10%.The upward movement of 6.6% and 21.6% were found at Superior labial inferius respectively. Conclusion: The soft tissue profile responds well to anterpond at Subnasal and Superior maxillary osteotomy for anterior maxillary protrusion patients. The effect is stable. ......