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近五十年来,国内外学者、专家已公认氟素防龋的效果,对不同途径不同方法的氟化防龋技术研究亦发展很快,如氟离子透入装置、APFI凝胶已为我省口腔保健所采用,为比较其防龋效果、经济实用价值,我们于1990年9月～1991年9月对三种氟化防龋方法进行效果观察,结果如下: 1 对象和方法: 1.1 对象在水氟<0.4 PPm的株州市区,整群随机抽取生活水平基本一致的5所小学校,对全体一年级学生进行龋病检查,以dft<3.0者为本次观察对象。根据年龄、性别、患病情况平均分为三个试验组(氟透组、凝胶组、漱口组)和一个对照组,患龋率分
Nearly 50 years, domestic and foreign scholars and experts have recognized the effect of fluorine anti-caries, fluoride fluoride caries on different approaches to different methods also developed rapidly, such as fluoride iontophoresis device, APFI gel has been our province Oral health care to adopt, in order to compare its anti-caries effect, economical and practical value, we in September 1990 ~ September 1991 three kinds of anti-caries fluoride effect observation, the results are as follows: 1 objects and methods: 1.1 objects in the water Fluorine <0.4 PPm of Zhuzhou City, the cluster randomly selected basically the same standard of living five primary schools, all first-year students for dental caries examination to dft <3.0 were the observed object. According to the age, sex, prevalence were divided equally into three test groups (fluoride group, gel group, mouthwash group) and a control group, caries rate