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[目的]了解2005～2007年滦县高氟地区8～12周岁儿童氟斑牙患病状况,为氟斑牙防治提供科学依据。[方法]采用多阶段整群随机抽样的方法。数据采用SPSS11.5软件统计。2005、2007年对榛子镇小学3～5年级随机抽取1个年级,在该年级中再随机抽取3个班作为调查对象,分别为200人、202人。2006年,对榛子镇小学3～5年级学生所有符合要求的都进行了普查,共调查2353人。按照《第3次全国口腔健康流行病学调查方案》中临床氟牙症的检查方法和标准,检查全口恒牙牙冠氟牙症情况;采用《生活饮用水标准检验规范(2001)》或GB/T5750.5-2006《生活饮用水标准检验方法》中的《无机非金属指标检验方法》对高氟地区饮用水进行水氟含量检测;对高氟村降氟深水井使用情况采用的是现场调查方法。[结果]2005～2007年儿童氟斑牙患病率依次为23.00%、15.00%、18.00%,χ2=9.867,P﹤0.05;3年水氟含量依次为1.7000mg/L、1.4272mg/L、1.4283mg/L,F=40.024,P﹤0.001;2005年氟斑牙分度以中度为主,占73.91%,2006年氟斑牙病情以轻度为主,占79.89%,2007年以轻度为主,占97.28%,HC=62.257,P﹤0.001;2005、2006、2007年氟斑牙指数依次为0.58、0.29、0.37,χ2=5510,P﹤0.001。[结论]2005年氟斑牙患病率反弹,氟斑牙病情加重。应加强降氟深水井的正常使用和管理。
[Objective] To understand the prevalence of dental fluorosis in children aged 8 ~ 12 years old in Luanxian high fluoride area from 2005 to 2007, and provide a scientific basis for the prevention and treatment of dental fluorosis. [Methods] A multistage cluster random sampling method was used. Data using SPSS11.5 software statistics. In 2005 and 2007, one grade was randomly selected from Grade 3 to Grade 5 in Hazelzi Town Primary School, and another 3 classes were randomly selected from this grade as 200 and 202 respectively. In 2006, censuses were conducted for all the students in grades 3 to 5 of Hazelnut Town Primary School, for a total of 2,353 people. In accordance with the “Third National Oral Health Epidemiology Survey Program” in the clinical examination of dental fluorosis methods and standards, inspection of full-mouth permanent teeth dental fluorosis; using “drinking water standard test specification (2001)” or GB / T5750.5-2006 “Standard Test Method for Drinking Water” in the “inorganic non-metallic index test method” to test fluoride content of drinking water in high-fluoride areas; investigation method. [Results] The prevalence rates of dental fluorosis in children from 2005 to 2007 were 23.00%, 15.00%, 18.00%, χ2 = 9.867, P <0.05. The water fluoride contents in three years were 1.7000mg / L and 1.4272mg / 1.4283mg / L, F = 40.024, P <0.001; dental fluorosis in 2005 was mainly moderate, accounting for 73.91%. In 2006, dental fluorosis was mild, accounting for 79.89% Degree, accounting for 97.28%, HC = 62.257, P <0.001; in 2005, 2006 and 2007, the dental fluorosis index was 0.58,0.29,0.37, χ2 = 5510, P <0.001. [Conclusion] The prevalence of dental fluorosis recovered in 2005, and the dental fluorosis increased. The normal use and management of deep well for fluorine reduction should be strengthened.