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目的了解改水工程对阳春市饮水型地方性氟中毒儿童氟斑牙病情的影响情况,为制定防治策略提供科学依据。方法按照《饮水型地方性氟中毒监测方案》(中疾控地病发〔2012〕6号)要求,对阳春市高坎村、热水村2个病区村进行改水工程运行情况和8~12岁儿童氟斑牙患病情况调查,水氟浓度测定采用氟离子选择电极法,儿童氟斑牙诊断采用氟斑牙诊断标准(WS/T 208-2011)。结果 2015年阳春市高坎村、热水村2个病区村水氟含量检测结果分别为1.39mg/L、0.08mg/L。2015年阳春市2个病区村氟斑牙总检出率为55.17%(16/29),较改水前氟斑牙总检出率89.77%(79/88)下降34.60%,差别有统计学意义(X~2=17.10,P<0.01)。结论阳春市饮水型氟中毒病区改水降氟工程防病效果显著,但工程维护和管理不善影响防病工作。
Objective To understand the effect of water diversion project on dental fluorosis children with fluoride-causing endemic fluorosis in Yangchun, and to provide a scientific basis for making prevention and treatment strategies. Methods According to the requirements of “drinking water endemic fluorosis monitoring program” (CDC disease [2012] No. 6), the operation of water diversion works in two ward villages of Gaokan and Hotshui villages in Yangchun and 8 A survey of the prevalence of dental fluorosis in 12-year-old children was conducted. Fluoride ion-selective electrode method was used to determine the fluoride concentration in water and the diagnostic criteria of dental fluorosis (WS / T 208-2011) was used to diagnose dental fluorosis in children. Results In 2015, the test results of fluoride content in village water of Gaokan and Hotshui villages in Yangchun were 1.39mg / L and 0.08mg / L, respectively. In 2015, the total detection rate of dental fluorosis in two wards in Yangchun was 55.17% (16/29), which decreased by 34.60% compared with 89.77% (79/88) before water change, with statistical difference Significance (X ~ 2 = 17.10, P <0.01). Conclusion The anti-disease effect of waterflooding and fluoride reducing project in drinking water fluorosis area of Yangchun City is significant, but the engineering maintenance and poor management affect the prevention of disease.