深圳市龙华新区劳务工子女第一恒磨牙龋病流行病学调查报告

Epidemiological investigation report of first permanent molar caries of labor children in Longhua district,Shenzhen

目的：了解深圳市龙华新区劳务工子女小学二年级下学期8-9岁儿童龋病患病现状，为开展本地区牙病防治工作提供依据。方法采用整群、分层、随机抽样的方法，抽取深圳市龙华新区劳务工子女二年级下学期8-9岁学龄儿童674人。结果龙华新区劳务工子女第一恒磨牙患龋率为45．99％，龋均为1．11，龋齿充填率为5．07％。结论龙华新区劳务工子女第一恒磨牙患龋率男生与女生之间差异无统计学意义，不能认为男生与女生患龋率有差别；第一恒磨牙龋均男生与女生之间差异有统计学意义，即第一恒磨牙龋均男生低于女生；第一恒磨牙龋齿充填率男生与女生之间差异无统计学意义，不能认为男女之间有差别且第一恒磨牙龋齿充填率男生明显高于女生。

Objective We were to understand the status of first permanent molar caries of labor children aged from eight to nine in Longhua district, Shenzhen and provide the basis for the development of dental prevention and treatment work in the local area.Methods A cluster, stratified and random sampling method was used to extract 674 school child aged eight to nine years old in Longhua district, Shenzhen.Results First molar caries rate of labor children Longhua new district was 45.99%, DMFT was 1.11 and the filling rate was 5.07%. Conclusions Longhua district labor children first molar caries rate differences between boys and girls had no statistical significance, can not think of the boys and the girls of caries rate difference;the first permanent molar caries differences between boys and girls have statistical significance, namely the first permanent molar caries boys than girls; the first permanent molar caries filling rate differences between boys and girls had no statistical significance, can not think there are differences and the first permanent molar caries filling rate of boys was higher than girls between men and women.