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目的:通过对恩施土家族苗族自治州各民族不同类型的错畸形患者Bolton指数进行测量分析,探讨本州错畸形类型与Bolton指数之间的关系。方法:随机选择错畸形患者记存模型586副,按照安氏分类法分组,各组内再根据民族、性别进一步分组。测量Bolton指数并进行全面统计分析。结果:各类错畸形患者民族、性别间Bolton指数差异无显著性。安氏I类错与正常Bolton指数差异无显著性,但是安氏II类、安氏III类错与正常Bolton指数之间存在差异,安氏II类错Bolton指数偏小,安氏III类错Bolton指数偏大,差异有显著性。结论:上、下颌牙量不调可能是安氏II类I、II类错的主要原因之一。
OBJECTIVE: To investigate the Bolton index of different types of malocclusion patients in various ethnic groups in Enshi Tujia and Miao Autonomous Prefecture, and discuss the relationship between the malformation type and the Bolton index. Methods: A total of 586 pairs of malocclusion patients were randomly selected and grouped according to Angle’s classification. Groups were divided into groups according to ethnicity and gender. Measure the Bolton Index and conduct a comprehensive statistical analysis. Results: There was no significant difference in the Bolton index between nationalities and gender in all kinds of malocclusion patients. There was no significant difference between Angle Class I and Normal Bolton Index, but Class Ⅱ, Angle Ⅲ and Bolton index were different, class Ⅱ Angle IIBolton index was small, safe Class III error Bolton index is too large, the difference was significant. Conclusion: Unconditioned upper and lower jaws may be one of the major causes of Class II, Class I and II malocclusions.