鄂托克前旗马场井村改水降氟15年病情防治效果分析

Analysis of the Effect of Altering Water Resources to Lower Fluoride Level in Ma Chang Jing Village Etuoke QianQi Inner Mongolia Automous Region

目的 :了解改水降氟后地氟病的防治效果。方法 :水氟、尿氟测定均为电极法 ,氟斑牙诊断为Dean′s法。结果 :该村自 1985年改饮低氟水 ,水氟含量由改水前的 6 0 5mg/L降至改水后的 0 4 8mg/L ,改水后未出现新的氟骨症患者。 8～ 12岁儿童氟斑牙患病率呈逐年下降趋势。改水后 7～ 15年间氟斑牙病率均已稳定 ,表明病情得到有效控制 ,且达到稳定控制状态。结论 :坚持长年饮用低氟水 ,地方性氟中毒就能得到有效控制。

Objective:To find out the preventive effect of lowering fluoride level in drinking water by altering water resources.Methods:Fluoride concentrations in drinking-water and urine are deter mined by ion-selective electrade method;The diagnostic method of dental fluorosis is Dean′s.Results:The village have been drinking low-fluoride water since 1985.Fluoride concentration drops from 6.05mg/L,the original level,to 0.48 mg/L.There is no new patient after altering water reources to lower fluoride level there.The incidence rate of dental fluorosis in children aged 8～12 dropped gradually yealy after fluoride-reduction in drinking water.7～15 years after the fluoricle-reduction.The incidence rate has been stable.It shows that the state of dental fluorisis in surveyed village has been effectively and steadily controled.Conclusions Keep on drinking low-fluoride water,the water-induced fluorosis will be effectively controlled.