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1988年以来,我们对处陕西南部的紫阳县和安康市19所中学学生氟斑牙情况进行了实地调查。结果:共调查10444人,检出氟斑牙9168人,平均检出率为87.78%。其中紫阳蒿坪石煤矿区全烧石煤,其辖区的蒿堰、复青和北沟3所小学氟斑牙患病率为94.48～95.66%;其次为该区半烧石煤半烧柴草辖区的宝师、北徙、双安3所小学和蒿坪中学氟斑牙患病率为50.49～
Since 1988, we conducted field surveys on the dental fluorosis of 19 middle school students in Ziyang County and Ankang City in southern Shaanxi Province. Results: A total of 10444 people were surveyed, 9,168 dental fluorosis were detected, the average detection rate was 87.78%. Among them, the total burned stone coal in Ziyang Artemisia coal mine area, 94.48% ~ 95.66% prevalence of dental fluorosis in the three elementary schools of Artemisia weir, Fuqing and Beigou, followed by the semi-burning stone coal in the area Of the Baozheng, North migrate, double safety 3 primary schools and Artemisia middle school dental fluorosis prevalence rate of 50.49 ~