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目的:评估生长期不同程度矢状向和垂直向骨性不调的安氏Ⅱ类1分类错患者的疗效差异。方法:选择28例治疗后获得Ⅰ类尖牙磨牙关系的中、重度安氏Ⅱ类1分类错患者。以治疗前矢状向和垂直向不调程度分为3组。利用治疗前、后头颅侧位片分析各组治疗前、后软硬组织变化。采用SPSS12.0软件包对数据进行统计学分析。结果:3组患者治疗后ANB角均减小,第2组、第3组较第1组ANB角减小更多(P<0.01)。第3组治疗后SNA角明显减小(P<0.01),第1组(P<0.01)、第2组(P<0.05)治疗后SNB角明显增加。治疗后3组上前牙均变得直立,下前牙位置基本不变,各组间无显著差异(P>0.05)。软组织指标治疗前、后组间无显著性差异(P>0.05),但鼻唇角(P<0.05)、面凸角(P<0.05)、Z角(P<0.01)在第3组治疗前、后有显著差异。结论:对于处于生长期的不同矢状向和垂直向不调的安氏Ⅱ类1分类错患者,单纯正畸治疗结合矫形治疗,可以取得明显牙骨性及软硬组织改善。重度矢状不调伴垂直向异常的患者,能取得更显著的侧貌改变。
OBJECTIVE: To assess the differences in efficacy between different grades of Class Ⅱ division 1 malocclusion patients with varying degrees of sagittal and vertical bone deviations during the growth phase. Methods: A total of 28 patients with moderate and severe Class Ⅱ division 1 malocclusion were enrolled in this study. To treat before the sagittal and vertical do not adjust the degree into 3 groups. The use of treatment before and after cephalometric analysis of each group before and after treatment of soft and hard tissue changes. SPSS12.0 software package for statistical analysis of the data. Results: The ANB angle of the three groups decreased after treatment, and the ANB angle in Group 2 and Group 3 decreased more than that in Group 1 (P <0.01). The SNA angle of group 3 was significantly decreased (P <0.01), group 1 (P <0.01), group 2 (P <0.05). After treatment, the anterior teeth of the three groups became erect, the position of the anterior teeth remained unchanged, and there was no significant difference among the groups (P> 0.05). There was no significant difference between the two groups before and after soft tissue index (P> 0.05), but the nasal and nasolabial angle (P <0.05), lugose angle (P <0.05) and Z angle , After significant differences. CONCLUSIONS: For orthodontic treatment combined with orthopedic treatment in patients with Angle Class Ⅱ division 1 malocclusion in different sagittal and vertical phases in the growth phase, significant osteal and soft and hard tissue improvement can be achieved. Severe sagittal does not transfer with vertical abnormalities in patients, can achieve more significant changes in the profile.