大连市旅顺口区小学生第1恒磨牙龋病调查分析

目的：选取7～10岁儿童第1恒磨牙患龋流行病学资料，为制定本市推广和实施预防龋齿适宜技术项目提供科学依据。方法：采用世界卫生组织通用的龋齿调查方法，以大连市旅顺口区5所小学2174名学生为对象，调查第1恒磨牙患龋情况，并进行统计学分析。结果：在2174名学生中，第1恒磨牙患龋人数467人，患龋率为21．48％，龋均0．503；患龋牙数990颗，以10岁儿童多见；女生患龋250人，高于男生的217人，P＜0．01，差异有统计学意义；患龋率随年龄增长而升高，10岁时达高峰。结论：该市儿童第1恒磨牙患龋情况符合龋病的一般流行病学特点。充分认识第1恒磨牙患龋对儿童的健康危害，有的放矢地指导小学生良好的口腔卫生习惯和饮食习惯。窝沟封闭、局部涂氟可有效预防龋病，降低第1恒磨牙患龋率。

Investigation of the First Permanent Molar Caries in Primary School Students in Lvshun-kou District of Dalian

Objective：To build 7~10 years old children＆#39;s first permanent molar caries epidemiological data , making the city provided scientific basis for the prevention of dental caries of appropriate technology projects in the promotion and .Methods：the dental caries sur-vey who used in five primary school , Dalian Lushun 2174 students as the object of investigation , the first permanent molar caries , and sta-tistical analysis .Results：among 2174 students , the first permanent molar caries number 467 , the caries prevalent rate of the first perma-nent was 21.48%, DMFT 0.503;caries teeth number 990, with 10 years old of children sees more;girls caries of 250 people, 217 peo-ple, higher than boys in P＆lt;0.01, significant caries prevalence with age;increased, and reached the peak at the age of 10.Conclusion：the children＇s first permanent molar caries epidemiological characteristics of loyalty with dental caries .Fully aware of the first permanent molar caries of health risks to children , have a definite object in view to oral hygiene habits and living habits to guide students good , the city take free sealant , topical fluoride , can effectively prevent dental caries , reduce the caries prevalence rate of first permanent molars .