Objective To investigate relationship of deciduous caries prevalence and the environment,diet,oral hygiene and other factors for 3~5 years old children at different levels of kindergartens in Nanchang area. Methods All 6 of municipal, district,community kindergartens of public and private from March 2014 to February 2015 were extracted 1224 cases of children aged 3~5 at the 5 districts and 4 counties of in Nanchang region.Kindergartens were divided in-to 408 excellence,544 medium nursery,272 Inferior Kindergarten in accordance with grading criteria.Incidence of de-ciduous caries, loss,make the case were analyzed and computed by influence factors and字2 test to obtain different lev-els of dental caries incidence at different grades kindergarten in Nanchang Area. Results Birth weight,feeding patterns, the number of children,whether taken care of by their parents,household income, dietary habits (drinking sweet milk, eating fresh fruit every day,every day into the dessert of frequency, before going to bed to eat findings dessert or drink sweet drinks),dental health protection (age of begin brushing,brushing times per day),and other aspects were statistically significant in excellence,middle and Inferior kindergarten (χ²=23.28,22.10,67.19,99.48,184.77,86.93,231.64,183.68, 394.83,488.20,388.30,P<0.01).Dental caries prevalence of children at excellence,middle and inferior kindergarten were respectively 41.18%, 65.44%, 78.31%,dental caries of children in three groups had statistically significant difference (χ²=10.14,P<0.01).Deciduous caries, lost, fill ratios of men and women were respectively 42.53%,40.14%,71.34%, 60.09%,94.87%,60.34%in excellence,middle, inferior kindergarten. Conclusion Caries prevalence of children aged 3~5 in Nanchang area is associated with the environment,diet,health habits. Improving the environment and eating habits,fo-cusing on oral health education can help to reduce the incidence of caries.%目的：探讨南昌地区不同级别幼儿园中3~5岁儿童乳牙龋病患病率与环境、饮食、口腔卫生等因素的关系。方法选取2014年3月~2015年2月在南昌地区5区4县抽取调查公立及私立市级、区级、社区幼儿园各6所,共计1224例3~5岁儿童。按照幼儿园等级划分标准,分成优等幼儿园408人,中等幼儿园544人,劣等幼儿园272人。通过影响因素的分析,采用字2检验计算龋病发病率,分析乳牙龋、失、补情况,获取南昌地区不同等级幼儿园中3~5岁儿童龋病发病情况的差异。结果优等幼儿园、中等幼儿园、劣等幼儿园儿童出生体重、喂养方式、孩子数、是否由父母照顾、家庭年收入、饮食习惯(喝甜牛奶、每天进食新鲜水果、每天进甜点心的频率、睡前吃甜点或喝甜饮料)、牙卫生健康保护(开始刷牙的年龄、每天刷牙次数)等方面的调查结果均有显著的统计学差异(字2越23.28、22.10、67.19、99.48、184.77、86.93、231.64、183.68、394.83、488.20、388.30,P<0.01)。优等幼儿园、中等幼儿园、劣等幼儿园中儿童龋齿患病率分别为41.18%、65.44%、78.31%,三组儿童龋齿患病率差异有统计学意义(字2越10.14,P<0.01)。优等幼儿园、中等幼儿园、劣等幼儿园儿童乳牙龋、失、补男女构成比分别为42.53%、40.14%,71.34%、60.09%,94.87%、60.34%。结论南昌地区3~5岁儿童乳牙龋病患病率与环境、饮食、卫生习惯有关,改善环境、饮食习惯,注重口腔卫生宣传教育,有利于降低儿童龋病发病率。
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