深圳地区学龄前儿童龋活跃性的研究分析

Study on caries activity of preschool children

目的：通过对深圳地区学龄前儿童患龋状况的调查,采用龋病活跃性试验（CAT）检测幼儿龋病活跃性,了解学龄前儿童龋发病情况及龋活跃性与患儿性别、年龄之间的关系。方法：选择深圳地区某幼儿园3~5岁189名幼儿,进行口腔龋齿检查并记录患龋状况,同时采用CAT试剂检测其龋活跃性,分析幼儿患龋状况、CAT、性别及年龄之间的关系。结果：①患龋状况：总患龋率73.02%;总龋失补牙数（dft）3.96±4.06;总龋蚀指数（CSI）：11.80±15.53;②性别及各年龄组间dft、CSI无显著性差异（P〉0.05）;③CAT 3度与其他度之dft、CSI差异有统计学意义（P〈0.05）。CAT度数越高,患龋状况越严重;④CAT分度与dft、CSI高度相关（r=0.378,r=0.360,P〈0.05）。结论：CAT各度间患龋状况有显著性差异,与患龋状况有高度相关性,提示CAT能反映机体之患龋状况。

AIM： To investigate the caries status of preschool children in Shenzhen,detect caries activities of children by caries activity test（CAT） and analyze the relationship between carries status and caries activities,sex and age.METHODS： The examination of caries and CAT were performed in 189 children aged 3~5 years.The relationship among CA,caries status,sex and age was analyzed.RESULTS： Of the 189 preschool children examined,the general caries incidence was 73.02%,the general decayed or filled teeth（dft） was 3.96±4.06 and the general caries severity index（CSI） was 11.80±15.53.There was no significant difference about dft and CSI in different sex and age groups（P0.05）.The severity of caries status increased with the degree of CAT result,CAT3 group showed significantly higher dft and CSI rates than other CAT groups（P0.05）.A high correlation of CAT with dft（r=0.378,P0.05） and CSI was found（r=0.360,P0.05）.CONCLUSION： There is positive correlation between CAT degree and the severity of caries status.CAT test can reflect caries status.