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本文报道１９９３～１９９４年成都市区六所幼儿园３岁及５～６岁２０１９人的乳牙患龋状况，并对两年龄组的患龋率，龋齿的牙位分布特点．龋齿数在人群中的分布状况进行了分析，结果表明，３岁儿童患龋率３８．９％，５～６岁组患龋率７５．３％，龋齿牙位分布３岁组以上颌乳中切牙最高．占龋齿总数的３０．４％，ｄｍｆｔ为１．３７±０．６２；而５～６岁组以双下颌乳磨牙为甚，占龋齿总数的４２．６％，ｄｍｆｔ为２．３３±１．３０．在各组患者中，龋牙数不呈均匀分布，而集中在部分人群中。３岁及５～５岁组患者龋牙数为５～２０颗者，分别为２５％及５４％，其中龋牙数为１０～２０颗者，分别为５％和１６％。
This paper reports the caries status of deciduous teeth from 3 years old and 2019 aged 5 ~ 6 years from 6 kindergartens in Chengdu city from 1993 to 1994. The distribution of dental caries and dental caries in both age groups were also analyzed. The results showed that prevalence of dental caries was 38.9% in 3-year-old children, 75.3% in 5 to 6-year-old group and 3-year-old in dental caries distribution. Incise the highest. Accounting for 30.4% of the total number of dental caries, dmft was 1.37 ± 0.62; while 5 to 6 years old group with double mandibular molars, even accounted for 42.6% of the total number of dental caries, dmft was 2.33 ± 1. 30. In each group of patients, dental caries is not evenly distributed, but concentrated in some people. The number of dental caries in 3-year-old and 5 to 5-year-old patients was 5 to 20, accounting for 25% and 54%, respectively, of which 10 to 20 were caries, accounting for 5% and 16%, respectively.