What are your questions about fluoride?
Fluoride can help prevent tooth decay by strengthening the protective outer layer of enamel that's worn away by acids formed by bacteria, plaque and sugars in the mouth. Since 1945, it has been added to many US water systems and is also available in toothpaste and other supplements. Recently, some states have banned it from water due to questions about safety, cost and personal choice. The US Food and Drug Administration also said it's taking steps to remove prescription fluoride tablets and drops from the market.
What do you want to know about fluoride and its safety and effectiveness? Share your questions with CNN below.
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Pandemic-era puppies, kittens now filling San Francisco shelters beyond capacity
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