摘要
目的 :通过对广州、惠州和潮州 3市高氟区改水降氟前后水氟含量 ,8～ 15岁儿童氟斑牙患病率的调查 ,评价改水降氟效果 ,为地方性氟中毒的防治提供科学依据。方法 :水氟含量采用氟离子选择电极法进行检测 ,儿童氟斑牙采用三型九度法。结果 :广州、惠州和潮州 3个高氟区经改水降氟后 ,水氟含量分别为 0 .2 2 mg/ L、0 .15 mg/ L、0 .34mg/ L ,均较改水前有明显的下降 ;广州、惠州和潮州 3市六 6地区在改水后儿童氟斑牙患病率分别为 2 1.6 2 %、31.4 0 %、35 .34%、5 0 .0 0 %、4 7.4 9%、34.2 0 %,较改水前有明显下降。结论 :广州、惠州和潮州 3市高氟区经改水后 ,饮用水源水氟含量达标 ,氟斑牙患病率有显著下降 ,较好地控制了地氟病。
Objective To evaluate the effect of altering fluoride concentration in water and provide scientific basis for controlling endemic fluorosis by measuring the fluoride content in water and investigating dental fluorosis prevalence rate of 8～15 years old children. Methods The fluoride contents were tested by fluoride selective ion electrode, dental fluorosis prevalence rate of children was examined according to clinical diagnosis standard. Results Compared with the content of fluoride before improving water, it was reduced remarkably, which were 0.22mg/L?0.15mg/L?0.34mg/L respectively in the areas of Guangzhou, Huizhou and Chaozhou after water improvement to reduce fluoride. There was a dramatic decrease in the prevalence of dental fluorosis in six areas of three cities after improving water, which were 21.62%?31.40%?35.34%?50.00%?47.49%?34.20% respectively .Conclusion Effect of water improvement to reduce to fluoride was obvious in the three cities, and was contrilled endemic fluorosis to some degree.
出处
《中国农村卫生事业管理》
2004年第3期35-37,共3页
Chinese Rural Health Service Administration
