免费龋齿充填干预对上海嘉定区学龄前儿童乳牙龋病的影响

Effects of free dental filling interventions on early childhood primary tooth caries in Shanghai Jiading district

目的 :为上海市嘉定区儿童口腔预防工作提供基线资料,明确嘉定区儿童中浅度龋齿免费充填活动的效果。方法:使用整体抽样方法,对2所经济条件、生活环境相似的幼儿园中的918名儿童连续观察3 a。一所幼儿园连续3年免费充填中、浅度龋齿,一所幼儿园作为对照。采用SPSS 20.0软件包对数据进行χ~2检验。结果:基线时2所幼儿园患龋率、龋均(dft)、龋蚀严重度指数(CSI)均无显著差异。经过3年干预,2组幼儿园儿童患龋率、dft、CSI均有显著差异。经过3年干预,干预组幼儿患龋率(43.90%)、dft(2.86)、CSI(7.34)均显著低于对照组(64.08%、3.51、10.17)。结论:免费充填干预提高了儿童龋病充填率,降低了患龋率、龋均、CSI,早期抑制了龋病的发展。

PURPOSE： To provide scientific basis for the establishment of oral health care polices in Jiading, and to evaluate the effectiveness of a free dental filling intervention conducted for childen in Jiading district. METHODS： Nine hundred and eighteen children of 3-5 year old from two kindergartens with similarities in living environments and economic conditions were enrolled in this study. Children in the intervention group received both oral health examination and free filling of shallow and moderate caries once a year for 3 years, while children in the control group received only oral health examination once a year. The data were analyzed with SPSS 20.0 software package for Chi-square test. RESULTS： Total caries prevalence,mean dft and CSI of the two groups had no significant difference in the first year. There was significant difference between the two groups in caries prevalence, mean dft and CSI （which were 43.90%, 2.86 and 7.34, respectively） after 3 years of the interventions. CONCLUSIONS： Free dental filling intervention programme is effective in early prevention and control of caries.