为探讨龋齿发生、发展规律 ,制定相应的防治措施 ,1992年 9月始到 1997年止对城关二小、师范附小学生连续6年进行龋齿追踪观察 ,现将资料完整的 36 0名学生观察结果报告如下 :1　对象与方法1.1　对象　城关二小、舒师附小 1992入学的一年级新生36 0名 ,其中男性 15 6人 ,女生 2 In order to explore the occurrence and development of dental caries and to formulate corresponding prevention and control measures, from September 1992 to 1997, only two small cities were followed, followed by pediatric dental students for 6 years in a row. Normal students' observations The report is as follows: 1 objects and methods 1.1 object Chengguan two small, Shu Shifu 1992 enrollment of freshmen 36 0, of which male 15 6, female 2