The rate of dental fluorosis in residents drinking shallow groundwater and tap water was 84.8% and 74.2%, respectively, which indicated a significant difference (P<0.01).
饮用浅层地下水的居民氟斑牙患病率为84.8%， 饮用自来水的人群其患病率是74.2%，二者有差异（P<0.01）。
Methods The fluoride contents were tested by fluoride selective ion electrode, dental fluorosis prevalence rate of children was examined according to clinical diagnosis standard.
方法：水氟含量采用氟离子选择电极法进行检测，儿童氟斑牙采用三型九度法。
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