Quan Jun Kang, Wang Xiao Zhe, Sun Xiang Yu, Yuan Chao, Liu Xue Nan, Wang Xing, Feng Xi Ping, Tai Bao Jun, Hu De Yu, Lin Huan Cai, Wang Bo, Si Yan, Wang Chun Xiao, Wang Wei Jian, Rong Wen Sheng, Zheng Shu Guo
Chin J Dent Res. 2018;21(3):181-193. doi: 10.3290/j.cjdr.a41080.
To investigate the dental caries status of teenagers in China by means of analysing national data from the 4th National Oral Health Survey of China.
Data for 12- to 15-year-olds participated in the 4th National Oral Health Survey of China were used for statistical analysis. Children who were recruited in the survey completed a dental examination and filled in a questionnaire. Social demographic factors, oral hygiene behaviours, sugar consumption habits, status of dental service utilisation, and pit-and-fissure sealant history were compared between adolescents with caries experiences and those without. For decayed, missing and filled permanent teeth (DMFT) and each of its components, mean values were statistically tested to see if significance existed between or among different categories of all involved variables.
In total, data from 27,821, 30,961, 30,691 and 29,128 Chinese 12-, 13-, 14-, and 15-year-olds respectively, were analysed. Social demographic factors, sugar consumption and dental service utilisation showed statistical significance when compared between those with and without dental caries experience in the 12- and 15-year-old groups. Certain categories of these factors above also had important influence on the mean value of the number of decayed teeth (DT), filled teeth (FT) and DMFT, and they might be potential determinants of dental caries experience of permanent teeth for teenagers.
Dental caries in 12- and 15-year-old Chinese adolescents was impacted by certain social demographic and dental behavioural factors, which could provide some implications for policy makers and dental public health professionals when attempting to enhance oral health status for those teenagers in the early stages of permanent dentition.
通过分析中国第四次全国口腔健康调查的全国数据，调查中国青少年的龋齿状况。
将参加中国第四次全国口腔健康调查的12至15岁儿童的数据用于统计分析。参与调查的儿童完成了口腔检查并填写了问卷。比较有龋齿经历和无龋齿经历的青少年在社会人口统计学因素、口腔卫生行为、糖消费习惯、牙科服务利用状况以及窝沟封闭史方面的差异。对于恒牙龋失补牙数（DMFT）及其各个组成部分，对均值进行统计检验，以查看所有相关变量的不同类别之间或之中是否存在显著性差异。
分别分析了来自27821名、30961名、30691名和29128名中国12岁、13岁、14岁和15岁青少年的数据。在12岁和15岁年龄组中，有龋齿经历和无龋齿经历的青少年在社会人口统计学因素、糖消费和牙科服务利用方面存在统计学显著性差异。上述这些因素的某些类别也对龋牙数（DT）、补牙数（FT）和DMFT的均值有重要影响，它们可能是青少年恒牙龋齿经历的潜在决定因素。
12岁和15岁中国青少年的龋齿受到某些社会人口统计学和口腔行为因素的影响，这可为政策制定者和牙科公共卫生专业人员在试图改善恒牙列早期青少年的口腔健康状况时提供一些启示。
