Abstract: Objective To investigate the status of primary teeth caries among 1~5 years old children in Haidian District in Beijing City and to provide scientific basis for the establishment of oral health care. Methods An multistage, stratified and cluster random sampling design was applied to obtain a representative sample group which consisted of 1 498 children aged 1~5 years old in Haidian district, Beijing city, with male 748 and female 750.The caries on the crowns of primary teeth were assessed according to 《The Guideline for the 3rd National Oral Health Survey》.The primary teeth caries prevalence, mean decayed, missing, filled teeth(dmft) were calculated by software SPSS13.0. Results The primary teeth caries' prevalence, mean decayed-missing-filled tooth (dmft) and filled teeth rate were 44.86%, 1.91±2.96 and 26.13%, respectively.These three indexes were increased by ages. Conclusion It is a best period during 0~3 years old to prevent and control primary teeth caries by performing effective measures for the high-risk groups, increasing oral health services, strengthening oral health education in children and parents and improving healthy food styles and oral habits.

Key words: primary teeth caries, primary teeth caries prevalence, filled teeth rate, mean decayed, missing, filled teeth(dmft), oral epidemiology

摘要： 目的 了解北京市海淀区1~5岁儿童乳牙患龋状况, 为北京市海淀区儿童龋病预防提供参考依据。方法 按照《第三次全国口腔健康流行病学调查方案》中临床检查方法 和标准, 采用多阶段分层等容量随机整群抽样的方法 , 调查了北京市海淀区1 498名1～ 5岁儿童的乳牙患龋情况。结果 北京市海淀区1~5岁儿童乳牙龋患病率44.86%, 龋均1.91±2.96, 充填率26.13%。患龋率、龋均、患龋者龋均都随年龄增长而逐年增高, 充填率也随年龄增长呈增高趋势。结论 0~3岁是龋病预防和控制的最佳时期, 关注低龄儿童龋高危人群, 培养低龄儿童良好的饮食和口腔习惯, 有效降低低龄儿童乳牙患龋率。

关键词: 乳牙龋病, 患龋率, 充填率, 龋失补牙数, 口腔流行病学调查