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为观察两监测点改水后水、尿氟含量变化,评估地氟病防治效果,连续4年用氟电极法测定水、尿氟含量,氟斑牙诊断用Deans氏法,结果表明巴邑村水氟含量从2.5mg/L降至1.0mg/L(国家标准)以下,氟斑牙患病率从71.01％降至15.98％;吴坡村水氟含量从4.4mg/L降至1.12mg/L,氟斑牙患病率从81.3％降至39.77％,随水氟含量逐年下降,两监测点8～12岁儿童尿氟含量也逐年呈明显下降趋势;尿氟含量与氟斑牙患病之间,巴邑未出现明显的正相关关系(r=0.201),吴坡呈非常显著的正相关关系(r=0.876),说明改水降氟对地氟病的防治效果是明显的,值得推广。
In order to observe the changes of water and urinary fluoride content in water and urine after water change at two monitoring points and evaluate the effect of prevention and treatment of ground fluorosis, Deans method was used to diagnose the dental fluorosis by using fluorine electrode method for four consecutive years. The fluoride content of water dropped from 2.5mg / L to 1.0mg / L (national standard), the prevalence of dental fluorosis dropped from 71.01% to 15.98%; the water content in Wupo village dropped from 4.4mg / L to 1.12mg / L, the prevalence of dental fluorosis decreased from 81.3% to 39.77%. With the declining of fluoride content in the water, the urinary fluoride content in children aged 8 ~ 12 years at two monitoring points also decreased year by year. Urinary fluoride content and dental fluorosis (R = 0.201), Wu Po showed a very significant positive correlation (r = 0.876), indicating that the effect of water and fluoride on the control of ground fluorosis is obvious, it is worth Promotion.