[摘要]目的：从牙颌面软硬组织变化，评价拔牙掩饰性矫治对高角骨性Ⅲ类错牙合的治疗效果。方法：选取符合纳入标准的15例高角骨性Ⅲ类错牙合患者，对其治疗前后的头颅侧位片进行测量分析，比较矫治骨性、牙性和软组织共20项测量指标的变化，采用配对t检验分析。结果：治疗后下切牙内收，L1/MP减小(-5.27±2.86)°;上下磨牙直立，U6/PP变化(-2.92±2.95)°;L6/MP变化(-7.59±4.44)°;下颌平面角维持;软组织面凸角增加(3.76±2.98)°，下唇到E线和H线距离都减小，LL-E减小(-1.67±2.25)mm，LL-H减小(-0.72±0.30)mm，改变均有统计学意义。结论：拔双尖牙掩饰性矫治轻中度骨性高角Ⅲ类错牙合后，牙齿咬合和软组织侧貌改善，矫治过程要注意控制切牙和磨牙的垂直方向移动。

    [关键词]骨性Ⅲ类错牙合畸形;高角;掩饰性矫治;拔牙矫治;头影测量

    Abstract： Objective The aim of this study was to evaluate the clinical effect of the orthodontic camouflage treatment after extracting bicuspids in skeletal Class Ⅲ high-angle malocclusions. Methods Fifteen patients with skeletal Class Ⅲ high-angle malocclusion who met the including criteria were included in this retrospective study. We measured lateral cephalometric radiographs before and after the treatment ......