中文摘要：

目的：了解安康地区所辖蒿坪和流水两地氟牙症流行状况和临床表现特征,为进一步的氟牙症和氟中毒的防治工作提供参考依据。方法：2009年11月以问卷调查和临床检查的形式对蒿坪、流水两镇681名10～22岁青少年进行氟牙症的流行病学调查。病变程度采用Dean氟牙症分度法进行分度;同时采集当地饮用水,茜素磺酸锆目视比色法进行氟含量检测。结果：蒿坪、流水两镇受检者中共检出628例氟牙症病人,患病率为92.22%。蒿坪、流水两镇饮用水氟含量分别为0.38 mg/L及0.98mg/L,均未超过国家饮用水含氟标准（≤1.0mg/L）。氟牙症病变主要集中于前牙唇面的切、中1/3,而颈1/3较少累及。结论：安康地区氟牙症流行状况与饮用水无明显相关性,应考虑其他引起氟牙症流行的相关因素。

英文摘要：

AIM：To investigate the prevalence of dental fluorosis in Ankang area and to provide data for the control of endemic fluorosis.METHOD：In November of 2009,we conducted dental fluorosis epidemiological investigation in Haoping and Liushui of Ankang area by questionnaire and clinical examination and randomly selected 681 subjects with ages ranging 10 to 22 years to answere a questionnaire and receive dental examination.Dental fluorosis was diagnosed by the Dean Clinic Diagnostic Standard for Dental Fluorosis.The fluoride concentration in drinking water from the same area was tested by spectrophotometric method.RESULTS：Among the subjects in the two places,628 （92.22%） were diagnosed as dental fluorosis.The fluoride concentration in drinking water in Haoping and Liushui was 0.38mg/L and 0.98mg/L respectively,which was lower than the national standard（≤1.0 mg/L）.The enamel fluorosis lesions mainly displayed on incisal 1/3-2/3 rather than cervical part of the labial surfaces of anterior teeth. CONCLUSION：There is no significant correlation between the prevalence of dental fluorosis and drinking water in Ankang area.It is proposed that there might exist other relevant factors.