为了摸清我市学生恒牙闻息情况，我们于1989年对我市3016名10～16岁，城乡中、小学生，进行了垣牙龋急调查，现将调查结果报告如下：1诊断标准与调查方法1．1诊断标准：按WHO标准，牙隙裂为或光滑面有色、形、质的改变，探针尖能准确插入损害处，诊断为龋齿（D），龋齿充填（F In order to find out the news of our city's students' permanent teeth and hearing, we conducted a survey of dental caries in 3016 aged 10 ~ 16 years old in urban and rural areas in 1989. The findings are as follows: 1 diagnostic criteria and Survey method 1.1 diagnostic criteria: according to WHO standards, or cracked smooth surface smooth, colored, shaped, qualitative changes, the probe tip can accurately insert the damage Department, the diagnosis of dental caries (D), dental caries filling