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目的掌握河北省蔚县地方性氟中毒病区的改水现状及防治措施、控制效果。方法选取蔚县55个病区村,对8～12岁儿童氟斑牙患病率及改水设施运行情况进行调查。儿童氟斑牙检查采用Dean氏法,水氟含量检测采用氟离子选择电极法。结果正常使用的改水工程为29个,受益人口达56 751人,管网末梢水氟含量均值为0.80mg/L,范围为0.2～2.1mg/L。氟斑牙患病率为15.92%,氟斑牙指数为0.27。结论蔚县地氟病防治取得较好效果,但病区改水降氟的防病措施尚须加强。
Objective To understand the current situation of water diversion and preventive measures and control effects of endemic fluorosis in Yuxian County, Hebei Province. Methods A total of 55 ward villages in Yuxian County were selected to investigate the prevalence of dental fluorosis and the operation of water diversion facilities in children aged 8 ~ 12 years old. Children’s dental fluoroscopy by Dean’s method, fluoride detection by fluoride ion-selective electrode method. Results There were 29 water improvement projects in normal use with a population of 56,751 beneficiaries. The average fluoride content in the water at the end of the pipe network was 0.80 mg / L, ranging from 0.2 to 2.1 mg / L. The prevalence of dental fluorosis was 15.92%, dental fluorosis index was 0.27. Conclusion Prevention and treatment of Fluorosis in Yuxian County have achieved good results, but disease prevention and cure measures to reduce fluoride in the wards should be further strengthened.