Du Min Quan, Li Zhen, Jiang Han, Wang Xing, Feng Xi Ping, Hu De Yu, Lin Huan Cai, Wang Bo, Si Yan, Wang Chun Xiao, Zheng Shu Guo, Liu Xue Nan, Rong Wen Sheng, Wang Wei Jian, Tai Bao Jun
Chin J Dent Res. 2018;21(3):167-179. doi: 10.3290/j.cjdr.a41076.
To investigate the prevalence and severity of dental caries among pre-school children in China as part of the 4th National Oral Health Survey.
The sampling process was conducted with a multistage stratified cluster method. A total of 40,360 children aged between 3 and 5 years were recruited for this study. Each participant was clinically assessed according to the 5th edition of the oral health survey's basic methods recommended by the World Health Organization (WHO) and their parents or grandparents completed a questionnaire at a face-to-face interview. The status of dental caries was shown in the form of the mean dmft and the prevalence of dental caries. The logistic regression analysis was performed to study the relationships between the prevalence of dental caries and the selected variables.
The prevalence of dental caries was 50.8%, 63.6% and 71.9% for 3-, 4- and 5-year-olds, respectively. The mean dmft was 2.28, 3.40 and 4.24, respectively. Logistic regression analysis showed that children who were mixed-fed had a higher chance of staying free of dental caries; children who had dessert before going to bed were associated with a higher probability of caries.
The status of dental caries among preschool children in China is on the increase. The preschoolers' dental caries status related to their breastfeeding conditions within the first 6 months of life and their snacking habits.
作为第四次全国口腔健康调查的一部分，调查中国学龄前儿童龋齿的患病率及严重程度。
采用多阶段分层整群抽样方法。本研究共招募了40360名3至5岁的儿童。根据世界卫生组织（WHO）推荐的口腔健康调查基本方法第5版对每位参与者进行临床评估，其父母或祖父母在面对面访谈时完成一份问卷。龋齿状况以平均龋失补牙数（dmft）和龋齿患病率的形式呈现。进行逻辑回归分析以研究龋齿患病率与所选变量之间的关系。
3岁、4岁和5岁儿童的龋齿患病率分别为50.8%、63.6%和71.9%。平均dmft分别为2.28、3.40和4.24。逻辑回归分析表明，混合喂养的儿童患龋齿的几率较低；睡前吃甜点的儿童患龋齿的可能性较高。
中国学龄前儿童的龋齿状况呈上升趋势。学龄前儿童的龋齿状况与其出生后前6个月的母乳喂养情况及零食习惯有关。
