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目的通过对乌鲁木齐地区各类错畸形患者Bolton指数分析,了解其地区分布特点。方法选取错畸形患者初诊模型180副,按照安氏分类分为三组,测量模型、计算各组Bolton指数前牙比、全牙比及牙量不调率,并进行统计学分析。结果前牙及全牙Bolton指数性别间差异无统计学意义;各错组前牙及全牙比差异无统计学意义;以超出中国人Bolton指数平均值2倍标准差范围为牙量不调,各错组牙量不调率差异无统计学意义。结论牙量不调普遍存在于各类错畸形患者中,Bolton分析应成为正畸诊断和确定治疗计划的依据之一。
Objective To analyze the Bolton index of all kinds of patients with malformations in Urumqi and to find out their regional distribution characteristics. Methods A total of 180 newly diagnosed patients with malocclusion were selected and divided into three groups according to their classification. The model was used to calculate Bolton index anterior teeth ratio, total teeth ratio and dental incontinence rate, and statistical analysis was made. Results There was no significant difference in the Bolton index between the anterior teeth and the whole teeth between the two groups. There was no significant difference in the anterior teeth and whole teeth between the two groups. The standard deviation of 2 times of the Bolton index There was no significant difference in the rate of teeth mismatch between the two groups. Conclusion Tooth irregularities are common in all kinds of malformation patients, and Bolton analysis should be one of the bases of orthodontic diagnosis and treatment planning.