Zhang Z Y, Xia B, Xu M M, Li Y P, Tang Z G, Chen Y Q
Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
Department of Special Care, Peking University School and Hospital of Stomatology, Beijng 100081, China.
Beijing Da Xue Xue Bao Yi Xue Ban. 2020 Oct 18;52(5):913-918. doi: 10.19723/j.issn.1671-167X.2020.05.020.
To understand the oral health status of children aged 3-12 in Shaoshan area of Hunan province and to evaluate the role of oral health educations based on community such as fluoride varnish, oral hygiene introduction in improving the oral health of children in the area so as to gain expe-rience.
The study used cluster sampling to select 3 kindergartens and 2 primary schools in different economic development areas of Shaoshan. Oral health status survey and interventions were conducted in December 2014 and September 2016, respectively. The average debris index, decayed missing filled teeth (deciduous teeth: dmft; permanent teeth: DMFT), and caries prevalence rate of children aged 3-6 years and 6-12 years were compared. At the same time, children aged 5 and 12 were used as representative populations to compare the indices as listed before and the caries prevalence rate of the first permanent molar in 12-year-old children was compared as well. Finally, health economic analysis was carried out based on the 2 years' result.
In this study, 992 children and 896 children in 2014 and 2016 were included respectively. As for children aged 3-6 years, the average debris index and dmft in 2016 were significantly less than that in 2014 ( < 0.001, < 0.001), and the difference of DMFT was not significant (=0.419). Children aged 6-12 years showed the same result, the average debris index and dmft in 2016 were significantly less than those in 2014 ( < 0.001, =0.013), and the difference in DMFT was not significant (=0.674). 173 and 179 5-year-old children were included in 2014 and 2016 respectively, and the dmft showed significant difference (=0.038); the caries prevalence rate was 75.7% and 71.5%, respectively, which was also not significant (=0.370). With respect to the 12-year-old children, 65 and 104 children were included and the differences in dmft and DMFT were not significant (=0.133, =0.171). The caries prevalence of the first permanent molar in the 12-year-old children was 36.9% and 26.9%, whose difference was not significant (=0.171).
The application of fluoride varnish and oral health education can significantly reduce the dmft of children aged 3-12 years in Shaoshan area and significantly improve the oral hygiene status. DMFT, the caries prevalence rate of 5-year-old children's deciduous teeth and 12-year-old children's first permanent molar showed a decline.
了解湖南省韶山地区3 - 12岁儿童的口腔健康状况，评估氟化物涂漆、口腔卫生宣教等社区口腔健康教育在改善该地区儿童口腔健康方面的作用，以积累经验。
本研究采用整群抽样法，在韶山不同经济发展区域选取3所幼儿园和2所小学。分别于2014年12月和2016年9月进行口腔健康状况调查及干预。比较3 - 6岁和6 - 12岁儿童的平均软垢指数、龋失补牙数（乳牙：dmft；恒牙：DMFT）及龋病患病率。同时，以5岁和12岁儿童作为代表人群，比较上述指标，并比较12岁儿童第一恒磨牙的龋病患病率。最后，基于两年的结果进行卫生经济学分析。
本研究中，2014年和2016年分别纳入992名和896名儿童。对于3 - 6岁儿童，2016年的平均软垢指数和dmft显著低于2014年（<0.001，<0.001），DMFT差异无统计学意义（=0.419）。6 - 12岁儿童结果相同，2016年的平均软垢指数和dmft显著低于2014年（<0.001，=0.013），DMFT差异无统计学意义（=0.674）。2014年和2016年分别纳入173名和179名5岁儿童，dmft差异有统计学意义（=0.038）；龋病患病率分别为75.7%和71.5%，差异无统计学意义（=0.370）。对于12岁儿童，分别纳入65名和104名，dmft和DMFT差异无统计学意义（=0.133，=0.171）。12岁儿童第一恒磨牙的龋病患病率分别为36.9%和26.9%，差异无统计学意义（=0.171）。
氟化物涂漆及口腔健康教育的应用可显著降低韶山地区3 - 12岁儿童的dmft，显著改善口腔卫生状况。5岁儿童乳牙及12岁儿童第一恒磨牙的DMFT、龋病患病率呈下降趋势。
