保定市某小学学生龋齿患病率与相关知识知晓情况调查

目的 了解保定市小学生龋齿患病率情况，掌握其对防治龋齿知识的知晓情况，为小学生早期防治龋齿提出可行性建议。 方法 采用整群抽样的方法，随机抽取保定市某小学 7~12 岁学生 1 441 名，逐一进行口腔检查和相关知识问卷调查。 结果（1）有 977 名小学生患龋齿，患病率为 67.80%。城乡患病率分别为 65.96%、75.94%，农村显著高于城市（χ2=9.900， P=0.002）；6~7 岁年龄组龋齿患病率最高（71.95%），10~12 岁年龄组患病率最低（61.29%）。（2）在 5 道龋齿防治知识题目中，城市得分高于农村，女生得分高于男生，3 个年龄组之间差异无统计学意义。 结论 小学生龋齿患病率较高，学校和家长应根据城乡、性别、年龄等不同特点采取有效措施，保护孩子的牙齿健康，降低龋齿患病率。

Investigation on prevalence rate of dental caries and status of related knowledge of pupils in a primary school in Baoding

Objective To investigate the prevalence rate of dental caries of pupils in Baoding and know the statusof caries awareness of prevention, so as to provide feasibility suggestion for pupils’ early prevention of caries.Methods By useing the method of group sampling, 1 441 children aged from 7 to 12 in a primary school inBaoding were examined and investigated separately.Results (1)There were 977 children had caries, prevalencerate was 67.80%. Prevalence rates of urban and rural were 65.96% and 75.94% respectively and were showedsignificant difference between them( χ2=9.900, P=0.002). The highest and lowest rates of caries were in theage groups 6-7 (71.95%) and 10-12(61.29%) respectively. (2) In the five questions of caries prevention, scoresof urban pupils were higher than rural ones, those of girls were higher than boys, there were no significantdifference between three age groups. Conclusion The current rate of dental caries of pupils is high, educationalinstitutions and parents should take some effective measures according to the different characteristics such astown and countryside, gender and age to protect children’s teeth and decrease the rate of caries.