作者于１９９７年８月对烟台市３～６岁２５１３名儿童进行口腔卫生调查，现将结果报告如下。１　对象与方法１．１　对象　烟台市１２所幼儿园共２５１３名，其中男生１２４８名，女生１２６５名，年龄３～６岁，均为健康儿童。１．２　方法　调查人员由从事口腔专业两年以上 The author conducted an oral hygiene survey of 2513 children aged 3 to 6 in Yantai City in August 1997, and the results are reported below. 1 objects and methods 1.1 objects 12 12 kindergartens Yantai a total of 1213, of which 1248 boys and 1265 girls, aged 3 to 6 years old, are healthy children. 1.2 Methods Investigators engaged in dental professional by more than two years