Dental caries are common diseases in children and often affect their growth and development. In order to understand the dental caries status of preschool children in Qingdao, a total of 1 690 children aged 3-6 years were screened from 13 kindergartens in two districts of Qingdao. The oral health examination was conducted according to the WHO standard, including the decayed-missing-filled index and pigmentation status. The prevalence of caries, the mean decayed, missing and filled tooth (dmft) and the mean dmfs were calculated. The results showed that the prevalence of deciduous teeth caries of children was 65.3% (n=1 103) with the mean dmft and dmfs about 3.2 and 5.4. There was a statistically significant difference in the prevalence of deciduous teeth caries among different age groups (P<0.001). There was a statistically significant difference between the prevalence of deciduous teeth caries with and without pigmentation (P<0.001). The prevalence of caries in preschool children in Qingdao is high and more attention should be paid to their dental caries.
龋病是儿童常见病，常影响儿童的生长发育。为了解青岛市学龄前儿童乳牙龋齿状况，采用整群随机抽样的方法抽取青岛市2个区的13个幼儿园，共筛查了1 690名3~6岁学龄前儿童。以WHO标准进行口腔健康调查，记录龋失补指数及色素沉着情况，计算乳牙患龋率、龋均及龋面均。青岛市学龄前儿童乳牙患龋率为65.3%（1 103例），龋均为3.2，龋面均为5.4，不同年龄儿童乳牙患龋率间差异有统计学意义（P<0.001）。乳牙有无色素沉着儿童患龋率差异有统计学意义（P<0.001）。青岛市学龄前儿童患龋率较高，应重视儿童龋病。.
Keywords: Child, preschool; Dental caries; Pigmentation; Tooth, deciduous.