本文共调查了该国地方病病区的5个村庄的氟中毒流行情况和病情的严重程度。用 Dean 等指数方法检查了3103个患病儿童病例的饮用水源,对所有的饮用水源进行了为期一年的监测。调查结果表明这些村庄的水氟含量不存在差异,但氟中毒的患病 This paper investigated the prevalence of fluorosis and the severity of the disease in five villages in the endemic disease ward in the country. A total of 3,103 sick children were examined for drinking water using Dean’s index method and all drinking water sources were monitored for one year. Findings indicate that there is no difference in water fluoride levels in these villages but the prevalence of fluorosis