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）。
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）。
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