【摘要】 目的了解藏族学生错牙合畸形患病的基本资料,为当地防治该病提供依据。方法采用单纯随机抽样的方法,抽取471名恒牙列初期藏族学生,对其进行牙合关系调查,按Angle错牙合分类法分类,数据处理用SPSS 11.5软件包。结果当地恒牙列初期藏族学生错牙合畸形患病率为67.1%,男生患病率为65.4%,女生患病率为68.5%,差异无统计学意义(χ2=0.498,P>0.05);错牙合畸形构成比以AngleⅢ类为最多(χ2=10.622,P<0.01),占39.2%。结论当地藏族学生恒牙列初期错牙合畸形患病率较高,错牙合畸形AngleⅢ类最多。更多还原

【Abstract】 Objective To know the prevalence of malocclusion disease among Tibetan students,and to provide evidence for the preventions.Methods 471 Tibetan students with early permanent dentition were investigated randomly,and maxillomandibular relations were analyzed.The malocclusion was classified according to Angle’s classification.The data were analyzed by SPSS11.5.Results The incidence rate of malocclusion among local Tibetan students with early permanent dentition was 67.1%,65.4% for male and 68.5% for female.There was no statistical significance between genders(χ~2=(0.498),P>0.05).Angle Ⅲ had the most prevalence rate(39.2%) among the cases(χ~2=10.622,P<0.01).Conclusion There is high prevalence of malocclusion in local Tibetan students with early permanent dentition.Angle Ⅲ type is the most among the local cases of malocclusion.更多还原