Mottled enamel will also occur on the healthy teeth which have grown in the high fluoride area.

在高氟地区即使是生长健康的牙齿还可以患氟牙症。

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Of the patients suffering from arsenic-fluoride poisoning, the incidence of dental caries and periodontal is higher while the morbidity of mottled enamel is lower.

砷氟联合中毒患者中龋齿和牙周病的患病率较高，而氟牙症的患病率较低。

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Of the patients suffering from arsenic-fluoride poisoning, the incidence of dental caries and periodontal is higher while the morbidity of mottled enamel is lower.

砷氟联合中毒患者中龋齿和牙周病的患病率较高，而氟牙症的患病率较低。

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