24例骨性Ⅲ类伴偏颌畸形患者隐形正畸-正颌联合治疗效果分析

目的: 评价骨性Ⅲ类伴偏颌畸形患者采用无托槽隐形矫治技术进行正畸-正颌联合治疗的临床效果。方法: 回顾正畸-正颌联合治疗的骨性Ⅲ类伴偏颌畸形患者24例,其中,实验组（n=12）采用无托槽隐形矫治技术,对照组（n=12）采用传统固定矫治技术,分别进行术前和术后正畸治疗。比较、分析2组患者治疗前、后的头影测量指标及满意度问卷调查评分。采用SPSS 20.0软件包中t检验、Wilcoxon秩和检验进行数据统计分析。结果: 治疗后患者的头影测量指标SNA、SNB、ANB、U1-SN、L1-MP值均发生显著改变,差异有统计学意义（P<0.05）;而治疗前与治疗后的2组参数分别比较,实验组与对照组之间的差异无统计学意义（P>0.05）。实验组的美观性、舒适度、便捷性、咀嚼效能以及语言功能评分显著优于对照组（P<0.05）,2组患者对治疗效果的满意度评分均为8.8±0.5分（P>0.05）。结论: 骨性Ⅲ类伴偏颌畸形患者应用无托槽隐形矫治技术进行正畸-正颌联合治疗,可获得较好的临床效果,患者对联合治疗的美观舒适性及效果较为认可。

Preliminary study on the effect of combined invisible orthodontic and orthognathic treatment in 24 skeletal Class Ⅲ patients with facial asymmetry

PURPOSE: To evaluate the clinical effect of combined orthodontic and orthognathic treatment with invisible aligner technique without brackets in skeletal Class Ⅲ patients with facial asymmetry. METHODS: A total of 24 skeletal Class Ⅲ patients with facial asymmetry treated with combined orthodontic and orthognathic treatment during the past 4 years were reviewed. Patients in the experimental group(n=12) were treated with invisible aligner technique without brackets, while patients in the control group(n=12) were treated with traditional fixed orthodontic technique for pre- and post-operative orthodontic treatment respectively. The cephalometric parameters and satisfaction questionnaire scores of the two groups before and after treatment were compared and analyzed with SPSS 20.0 software package for t test and Wilcoxon rank sum test, respectively. RESULTS: After treatment, the cephalometric parameters of SNA, SNB, ANB, U1-SN and L1-MP values were changed significantly(P<0.05), but there was no significant difference between the values of experimental group and the control group(P>0.05). The scores of aesthetics, comfort, portability, masticatory and speech function in the experimental group were significantly higher than those in the control group(P<0.05). The satisfaction scores of the two groups were both 8.8±0.5(P>0.05). CONCLUSIONS: Skeletal Class Ⅲ patients with facial asymmetry could obtain good clinical effect by using invisible aligner technique. The patients were satisfied with the aesthetics, comfort and the effect of combined invisible orthodontic and orthognathic treatment.