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我们对1992年我市市区小学生龋齿患病现况与十年前本市小学生龋病调查结果进行了分析比较,现将结果报告如下。1 调查方法和内容: 随机选取市区3所小学7、9、12岁3个年龄组共
We in 1992 in our city primary school students dental caries prevalence and the city a decade ago the primary caries survey results were analyzed and compared, the results reported below. A survey method and content: randomly selected three primary schools in urban areas 7,9,12 years of age three age groups