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目的了解广东省地方性氟中毒重病区病情现状,探明降氟改水的效果,为制定可持续的地方性氟中毒预防控制策略提供科学依据。方法儿童氟斑牙诊断采用WHO推荐的氟斑牙诊断方法(Dean氏法);氟骨症诊断按地方性氟骨症诊断标准(WS 192-2008);水氟、尿氟含量测定采用离子选择电极法(GB/T8538-1995)。结果调查村平均饮水含氟量在0.11～0.31 mg/L之间,儿童氟斑牙总体患病率为3.02%,氟斑牙指数为0.06,儿童尿氟含量总体均值为0.53mg/L。结论经过多年的改水降氟防治工作,病区已达到非病区流行的水平,充分显现预防控制措施的效果。
Objective To understand the status quo of endemic fluorosis in Guangdong Province and to find out the effect of reducing fluoride and water to provide a scientific basis for the development of a sustainable endemic fluorosis prevention and control strategy. Methods The diagnosis of dental fluorosis in children was based on the diagnostic method of dental fluorosis recommended by the WHO (Dean’s method). The diagnosis of skeletal fluorosis was based on the diagnostic criteria of local skeletal fluorosis (WS 192-2008) Electrode method (GB / T8538-1995). Results The average drinking water fluoride content in the surveyed villages ranged from 0.11 mg / L to 0.31 mg / L. The prevalence of dental fluorosis in children was 3.02%. The dental fluorosis index was 0.06. The average urinary fluoride content in children was 0.53 mg / L. Conclusion After many years of water and fluoride prevention and control work, the ward has reached the level of prevalence of non-ward and fully demonstrated the effectiveness of prevention and control measures.