Abstract: Objective To investigate the relationship between the body mass index (BMI) and the decayed missing filled teeth (DMFT) of children aged 3 to 5 years in Bianba County, Tibet, so as to provide ideas for the development of preventive measures for children's dental health. Methods A total of 265 children aged 3 to 5 years,including 136 boys and 129 girls, were randomly selected from 11 township hospitals in Bianba County of Changdu city from May to August in 2019. A professional pediatrician who were professionally trained was selected to perform oral examination on the children using a uniform probe and mouthpiece and to record the number of missing teeth and calculate the DMFT index. Using the corrected height and weight measuring instrument, the height and weight of the children were measured in the same period, and the BMI was calculated. Statistical analysis was performed between the caries and BMI using SPSS 22.0 statistical software. Results There were statistically differences in BMI and DMFT of children among skinny,overweight,obese,control groups(F=14.824,P<0.001;H=33.125,P=0.002).The scatter plot analysis and Spearman correlation analysis showed that DMFT was negatively correlated with BMI(r_s=-0.68,P=0.001). Conclusions DMFT of 3- to 5-year-old children is closely related to BMI. Oral hygiene of children should be examined regularly to improve their quality of life.

Key words: body mass index, decayed missing filled teeth, children caries

摘要： 目的 分析西藏边坝县3~5岁儿童的体重指数(BMI)与龋失补指数(DMFT)之间的关系,为制定儿童牙齿健康的预防措施提供科学依据。方法 2019年5-8月随机抽取昌都市边坝县所辖11个乡镇卫生院登记在册的265例3~5岁儿童,其中男性136例,女性129例。选取经过统一培训的具有执业医师资格的口腔专业儿科医生,使用统一的探针和口镜等检查设备对儿童进行口腔检查并记录龋失补牙数,计算DMFT值。运用校正过的同一身高体重测量仪,对儿童的身高体重在同一时间段内进行测量,计算BMI,采用SPSS 22.0统计软件进行统计分析龋病与BMI之间的关系。结果 不同组间儿童BMI、DMFT比较,差异均有统计学意义(F=14.824,P<0.001;H=33.125,P=0.002)。通过散点图分析显示龋失补指数与BMI呈负相关,Spearman 相关系数结果显示呈中等相关(r_s=-0.68,P=0.001),且差异有统计学意义。结论 3~5岁儿童DMFT与BMI关系密切,应定期对儿童的口腔卫生进行检查,提高儿童的生活质量。

关键词: 体重指数, 龋失补指数, 儿童龋病