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为了解汉中市城乡地区龋病分布规律并探讨有关发病因素，以做好口腔初级卫生保健工作，我们于１９９８年３月至７月，先后对汉中市７所城乡中小学的４０２２名学生进行了龋病流行病学专题调查，报告如下。１调查对象及方法选择城市２所中学、２所小学的中小学生２６６９人...
In order to understand the distribution of dental caries in urban and rural areas of Hanzhong City and to explore the relevant risk factors in order to make good oral primary health care work, we conducted 4022 students from 7 urban and rural primary and secondary schools in Hanzhong City from March to July 1998 Dental caries epidemiological survey, the report is as follows. 1 survey of objects and methods to choose 2 secondary schools in the city, 2 primary and secondary schools in 2669 people ...