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目的了解2015年呼和浩特地区城乡汉族中小学生龋齿患病流行现状,为当地制定中小学生防龋策略提供科学依据。方法采用分层随机整群抽样方法在呼和浩特4个城区和5个旗县每个区域随机抽取2所小学和2所中学,每所学校的各个年级随机抽取1个班的汉族学生为调查对象。以龋患率、龋失补构成比、龋均为调查指标,并与1995年呼和浩特和2005年全国中小学生龋齿患病资料进行比较分析。结果本次调查受检7 888人,总龋患2 514人,总龋患率为31.87%,龋失补总牙数5 674颗,总龋均0.72。与1995年相比,男、女生及城乡学生总龋齿患病率均下降(χ~2值分别为229.440,260.295,29.179,12.016,P值均<0.01)。与2005年全国中小学生龋齿患病资料差异不大。结论呼和浩特地区城乡汉族中小学生龋患情况有所好转,但当地政府和相关部门仍然要加强学生和家长防治龋齿的宣传教育工作。
Objective To understand the prevalence of dental caries among primary and secondary school students in urban and rural areas of Hohhot in 2015 and to provide a scientific basis for formulating the local caries prevention strategies for primary and secondary school students. Methods A stratified random cluster sampling method was used to randomly select 2 primary schools and 2 middle schools in 4 districts of Hohhot and 5 counties and counties, and randomly selected one class of Han students in each grade in each school as the survey object. Caries rates, caries loss makeup ratio, caries were surveyed indicators, and 1995 Hohhot and primary and secondary school students in 2005 dental caries prevalence data were analyzed. Results A total of 7 888 people were examined in this survey. The total number of caries was 2 514, the total caries prevalence was 31.87%. The total number of carious lost teeth was 5674, with a total caries of 0.72. Compared with 1995, the prevalence of total caries in boys, girls and urban and rural students decreased (χ ~ 2 = 229.440, 260.295, 29.179, and 12.016, respectively, P <0.01). And 2005 national primary and secondary dental caries prevalence information is not different. Conclusion Caries in Han primary and secondary school students in urban and rural areas in Hohhot have been improved, but the local government and relevant departments still need to step up publicity and education on dental caries prevention and treatment for students and parents.