The proper amount of fluoride throughout life helps prevent and control tooth decay. Some fluoride exposure to developing teeth also plays a long-term role in preventing tooth decay.

2. What is enamel fluorosis?

The appropriate amount of fluoride throughout life is essential to prevent tooth decay. But it’s possible to get too much of a good thing. Fluoride intake above the recommended level for a child’s age creates a risk for enamel fluorosis, a condition that affects the way teeth look. In the vast majority of cases, fluorosis appears as barely noticeable faint white lines or streaks on tooth enamel and does not affect the function of the teeth.

3. When are teeth at risk for developing enamel fluorosis?

Enamel fluorosis occurs only when the teeth are under the gums and still developing.

4. Does enamel fluorosis worsen after the teeth erupt?

No. Once teeth are fully developed and erupt into the mouth they are no longer susceptible to enamel fluorosis. 

5. Can I use my tap water, which contains fluoride, to mix infant formula?

Water can contain fluoride in varying amounts. Consult with your family physician or pediatrician to see if this is the most appropriate water to use. After their first birthday, children can drink infant formula mixed with water that contains fluoride because they weigh more and formula is no longer a primary part of their diet.

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