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目的:总结一组不对称拔牙矫治病例,分析不同拔牙模式的矫治要点和临床处理方法。方法:28例不对称拔牙矫治病例,男3例,女25例,年龄11.5～33岁,平均18.1岁,均为第一磨牙严重龋坏或缺失病例,矫治设计拔除1个第一磨牙+3个前磨牙7例,拔除2个第一磨牙+2个前磨牙3例,拔除3个第一磨牙+1个前磨牙2例,单侧拔除1个第一磨牙10例,单颌拔除1个第一磨牙+1个前磨牙6例。结果:患者矫治时间为13～26个月,平均19.6个月,矫治结束时前牙覆牙合覆盖关系正常,中线对齐,后牙尖窝交错关系,拔牙间隙完全关闭,侧貌协调。结论:对于不对称拔牙病例,要采用灵活的支抗控制及牙齿移动方法以获得最佳矫治效果。
OBJECTIVE: To summarize a group of cases of asymmetric extraction and to analyze the main points and clinical treatment methods of different extraction models. Methods: 28 cases of asymmetric extraction of teeth, 3 males and 25 females, aged 11.5 to 33 years, mean 18.1 years old, were the first cases of severe decay or absence of teeth, correction design removal of a first molar +3 7 cases of premolar, 2 cases of first molar + 2 cases of premolar, 3 cases of first molars + 1 case of premolar, 2 cases of unilateral removal of 1 first molars, First molars + 1 premolar in 6 cases. Results: The treatment time ranged from 13 to 26 months (mean, 19.6 months). The anterior mandibular obturatorial occlusion was normal at the end of orthodontic treatment. The midline alignment and apical posterior spine were staggered. The extraction space was completely closed and the facial features were coordinated. Conclusion: Asymmetric tooth extraction cases, to adopt flexible support control and tooth movement method to get the best correction effect.