贵州三穗县侗族3～6岁儿童乳牙龋病及相关因素分析

Investigation and Related Factors Analysis of Deciduous Teeth Caries of Preschool Children in Dong Ethnic Area of Sansui County in Guizhou

目的：调查贵州三穗侗族区3-6岁儿童乳牙龋病流行现状，分析其相关发病因素。方法：整群抽样方法抽取贵州三穗县247名3-6岁侗族儿童为调查对象，按照第3次全国口腔流行病学调查诊断标准进行口腔检查及问卷调查，分别计算不同性别及年龄段儿童患龋率和龋均，并对该组儿童乳牙龋病相关因素进行Lo-gistic回归分析。结果：247名3-6岁侗族儿童乳牙总患龋率为66.4%，龋均3.27，男女龋补充填率均为0；女童乳牙患龋率明显高于男童，差异有统计学意义（ P﹤0.01）；各年龄段儿童乳牙患龋率比较，差异有统计学意义（ P﹤0.05）；龋病好发于下颌第2乳磨牙，下颌乳磨牙患龋率高于上颌乳磨牙（ P﹤0.01），上颌乳前牙患龋率高于下颌乳前牙（ P﹤0.01）；家庭经济收入、刷牙次数以及家长受教育程度与该组儿童乳牙龋病的发生有相关性。结论：贵州三穗县3-6岁侗族儿童龋病发病率较高，龋齿充填率极低，加强对儿童父母口腔健康宣教防治工作不能忽视。

Objective：To investigate the current status of deciduous caries among 3-6 years old pre-school children in Dong ethnic area of Sansui county in Guizhou Province and analyze the related risk factors. Methods：247 3 -6 years old preschool children in Dong ethnic area of Sansui county in Guizhou Province were selected by cluster sampling method as subjects. According to the criteria rec-ommended by the Third National Oral Health Investigation and questionnaire survey,the caries preva-lence rate,mean DMFT were calculated,and prevalence of dental caries was analyzed by logistic re-gression analysis of related factors. Results：The total incidence of the dental caries was 66. 4%, mean DMFT was 3.27 ,and the rate of caries and filled is 0 . The caries prevalence of male and female children were 63 . 9% and 69 . 9%,and the difference was statistically significant（ P﹤0.01 ）. The differences of deciduous teeth caries rate in different ages of children were statistically significant（ P﹤0.05）. The most suffered teeth with dental caries were mandibular second molars. The rate of dental caries mandibular molars was higher than that of maxillary molars（ P﹤0.01 ）. The rate of maxillary anterior teeth caries was higher than that of mandibular anterior teeth（P﹤0. 01）. Family income,ed-ucation level of parents and brushing times are correlated to the occurrence of deciduous caries. Con-clusion：The caries prevalence rate of preschool children among the Dong ethnic area is relatively high,and the filling rate was overwhelmingly low. Strengthening dental care guidance for their parents and the prevention of dental caries canˊt be ignored.