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龋齿是中小学生中的常见病、多发病。必须重点防治。为了解我市小学生六龄齿患龋情况，于1992年4月对3895名小学生进行了调查．结果与分析如下：1对民与方法1．1对象：齐齐哈尔市市区五所小学的3895名小学生，其中男生1883名．女生2012名；年龄为8－13岁的一至六年级学生。1．2
Dental caries is a common disease in primary and secondary students, frequently-occurring disease. Must focus on prevention and treatment. In order to understand the prevalence of dental caries in Beijing's primary school students aged 6, 3,995 pupils were investigated in April 1992. The results and analysis are as follows: 1. People and Methods 1.1 Target: 3895 primary school students in five primary schools in urban area of Qiqihar, including 1883 boys. Girls 2012; students aged 8-13 in grades one to six. 1.2