我们于１９９６年６月对银川市一幼７３３名学龄前儿童龋病情况进行调查分析。同时，比较了１９９０年市一幼儿童患龋情况，评价了六年来开展幼儿口腔保健试点工作的效果。对象与方法对象：１９９６年调查一幼３～６岁幼儿共７３３名，受检率９５％，其中男性４０９名，女... In June 1996, we investigated the dental caries of 733 preschool children in Yinchuan City. At the same time, compared the situation of caries in a young child in 1990 in a city, and evaluated the effect of carrying out pilot work of oral health care for young children in six years. Subjects and methods Object: 1996 survey of a child 3 to 6 years old a total of 733 children, the detection rate of 95%, of which 409 males, women ...