反映地方性氟中毒病情客观、灵敏的指标是氟斑牙。多年来均采用Ｄｅａｎ法诊断氟斑牙。１９９８年９月按中国地方病防治研究中心氟病研究所提出的“８度法”，在不同病区同时用Ｄｅａｎ法和“８度法”检查８～１２岁学生氟斑牙，并将检查结果进行统计学分析，现报导如下。１　 Reflect the objective and sensitive indicators of endemic fluorosis is dental fluorosis. Dental methods have been used to diagnose dental fluorosis for many years. In September 1998, according to the “8-degree method” proposed by the Institute of Fluorosis of the Chinese Center for Endemic Disease Control and Prevention, dental examinations of dental fluorosis of 8 to 12-year-old students were conducted simultaneously with the Dean method and the “8-degree method” in different ward areas. Statistical analysis, are reported as follows. 1