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A member asked:
Could you tell me how much fluoride can hurt someone!?
2 doctors weighed in across 2 answers
4milligram per liter: Eventhough helpful for dental health in low dosages, more than 4 milligram per liter Fluoride in the drinking water can cause dental fluorosis.Or mottled enamel. The tooth enamel presents a white or brown opaque, pitted appearance.
Answered 6/25/2014
5.1k views
That depends: It takes long term, excessive exposure to be a problem. Optimum amount in water is 0.7 ppm. Long term exposure above 1.5 ppm (twice normal dosage)can cause dental fluorosis in children. 3-6 ppm can cause skeletal fluorosis (sk) in children and adults. Above 10.0 ppm can cause crippling fluorosis. Only 4 cases of sk reported in the entire usa in last 60 years. You don't have to worry about this.
Answered 8/25/2013
4.9k views
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