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为了解上海铁路地区内幼儿乳齿患龋情况,我们在1991年6月对铁路4个幼儿园中4～6岁834名幼儿(其中男437人,女397人)健康检查时着重检查了幼儿的牙齿情况。一、结果(一)乳齿患龋情况被检4个幼儿园中4～6岁幼儿834名中患龋349名,患龋率41.85%,龋齿总数1449只,龋均1.74只,患儿龋均4.15只。(二)各年龄组患龋情况比较4～岁组被检104人,患龋率40.38%;5～岁组被检422人,患龋率39.01%;6岁组被检308人,患龋率45.13%。3个年龄组比较,有随着年
In order to understand the prevalence of premarital teeth in the Shanghai railway area, in June 1991, we examined the young children’s teeth when they examined the health of 834 children aged 4 to 6 years (including 437 males and 397 females) in 4 kindergartens. Happening. First, the results (a) milk tooth caries was seized 4 kindergartens 4 to 6-year-old children 834 were suffering from caries 349, caries prevalence rate of 41.85%, the total number of dental caries 1449, caries were 1.74, caries were 4.15 only. (2) Caries prevalence among all age groups 104 cases were examined in 4 ~ age group with caries rate of 40.38%; 422 persons in 5 ~ age group were examined with caries rate of 39.01%; 308 patients in age 6 were examined with caries Rate of 45.13%. 3 age groups, there are years