2008年山东省烟台市经济技术开发区改水降氟工程效果调查

Investigation on the effect of defluoride project in Yantai economic ＆ technological development area

目的了解山东省烟台市经济技术开发区改水降氟工程对地方性氟中毒（简称地氟病）的防治效果。方法2008年在山东省烟台市经济技术开发区选取有改水降氟工程的4个地氟病病区（古现街道办事处、八角街道办事处、大季家街道办事处、长江社区）和1个非病区（对照区）作为调查地区，抽取7—12岁儿童945名，采用Dean法检查氟斑牙患病情况；对4个地氟病病区抽取水样，离子选择性电极法测定其含氟量。结果古现街道办事处、八角街道办事处、大季家街道办事处、长江社区4个地氟病病区的儿童氟斑牙检出率分别为30．1％（55／183）、41.2％（73／177）、33．7％（66／196）、31．8％（64／201），均高于对照区[13.3％（25／188）]，水氟中位数分别为1．84、3．46、2.39、2．10mg／L，均高于国家卫生标准（1．00mg／L）。结论烟台市经济技术开发区改水降氟工程对地氟病的防治效果不明显，尚须进一步完善。

Objective In order to explore the effectiveness of defluoride project on the control of endemic fluorosis in Yantai economic ＆ technological development area. Methods Nine hundred forty-five children aged 7 - 12 were selected in 4 endemic fluorosis disease areas （Guxian, Bajiao, Dajijia Streets and Changjiang community） and the control area of Yantai economic ＆ technological development area. Prevalence of children＇s dental flnorosis was determined by Dean method. Water fluoride content was measured in the 4 endemic fluorosis disease area by means of fluorides ion selective electrode. Results Childr dental fluorosis prevalence rate in Guxian, Bajiao, Dajijia Streets and Changjiang community was respectively 30.1% （55/183）,41.2% （73/177）,33.7% （66/196）, 31.8% （64/201）, higher than those in the control area [ 13.3% （25/188）1; the median of water fluoride in the 4 disease areas was 1.84,3.46,2.39,2A0 mg/L, respectively, higher than the National Health on the control of endemic fluorosis is not obvious, Standard （1.00 mg/L）. Conclusions Effect of the defluoride project in Yantai economic ＆ technological development area needs to be improved.