广州市适龄儿童第一恒磨牙窝沟封闭防龋效果分析

发布时间：2018-10-25 20:17

【摘要】：目的了解广东省广州市实施适龄儿童第一恒磨牙免费窝沟封闭项目的防龋效果。方法分别抽取接受第一恒磨牙窝沟封闭2年后、3年后的儿童各5 576和4 857人,进行龋患和封闭剂保留情况检查,在上述对象的同校同年级学生中抽取当年检查第一恒磨牙有窝沟封闭适应证但未接受封闭的儿童作为对照。结果第一恒磨牙窝沟封闭2年后的封闭剂保留率为75.4%,龋齿检出率为5.67%,未封闭对照组的第一恒磨牙龋齿检出率为11.48%,龋齿降低比例为50.55%;封闭3年后的封闭剂保留率为72.2%,龋齿检出率为7.04%,未封闭对照组的第一恒磨牙龋齿检出率为11.82%,龋齿降低比例为40.46%。乡村儿童第一恒磨牙窝沟封闭2年后龋齿降低比例为59.39%,3年后为45.11%,分别高于同时期城市儿童的龋齿降低比例(48.27%和38.36%)。结论窝沟封闭对儿童第一恒磨牙的防龋效果明显,特别对农村地区儿童,是适宜推广的预防和控制龋病的技术。
[Abstract]:Objective to investigate the anti-caries effect of the first permanent molars free of charge in Guangzhou, Guangdong province. Methods 5 576 and 4 857 children were selected after the first molars were closed for 2 years and 3 years later respectively, and the caries and sealant retention were examined. Children of the same grade who examined the first permanent molar for the same year but did not accept the closure were selected as the control group. Results the retention rate of sealant was 75.44.The detection rate of caries was 5.67. in the control group, the caries rate of the first molar was 11.48 and the reduction ratio of caries was 50.55. The retention rate of sealant was 72.2%, the detection rate of dental caries was 7.04, the rate of caries of the first molar in the control group was 11.82, and the reduction ratio of caries was 40.46. The reduction rate of dental caries in rural children was 59.39 after the first molars were closed for 2 years, and 45.11 after 3 years, which was higher than that of urban children in the same period (48.27% and 38.36%). Conclusion Seal closure is an effective method to prevent caries of first molars in children, especially for children in rural areas. It is a suitable technique to prevent and control caries.
【作者单位】：广州市疾病预防控中心学校卫生部;
【分类号】：R788.1

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