低龄儿童乳牙龋病流行病学及龋活跃性分析

Analysis of primary tooth caries and caries activity in early childhood

目的:调查3～6岁儿童乳牙龋病的流行情况,研究龋活跃性与患龋严重程度的关系。方法:纳入南京市6所幼儿园1 375名3～6岁儿童进行口腔检查和龋活跃性试验。结果:3～6岁儿童平均患龋率和龋均分别为50.48%和2.13,龋齿充填率6.93%,其中5岁年龄组患龋率和龋均分别为61.42%和2.92。龋活跃性各分值之间的患龋率及龋均差异显著(P<0.01)。龋活跃性与患龋率及龋均呈高度正相关(P<0.01)。结论:3～6岁年龄段儿童的患龋情况严重,且治疗率十分低,应加强口腔健康教育,开展多种防龋措施。龋活跃性检测结果能够真实反映患龋现状,有助于筛选龋易感者。

Objective： To investigate the prevalence of primary tooth caries and caries activity in 3-6 year old children.Methods： Dental caries examination and caries activity test were conducted in 1 375 children aged 3-6 year old from six kindergartens in Nanjing.Results： The caries prevalence and the mean dmft were 50.48% and 2.13 respectively.The filled rate of deciduous teeth was 6.93%.There were significant difference in caries prevalence and mean dmft among caries activity test scores（P0.01）.The caries activity was significantly correlated with caries prevalence and mean dmft（P0.01）.Conclusion： The prevalence of primary tooth caries and the mean dmft in children aged of 3-6 year old are high,and the filled rate of deciduous teeth is low according to the standard of WHO.Caries activity test is valuable in detection of caries susceptible population.