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you need just the right amount of fluoride for optimal health (prevention of cavities). If the water in your area is fluoridated, then usually you do not need supplemental fluoride (you can look this up for your city).

If the water is not fluoridated, then you should take supplemental fluoride, though it is most effective if applied as a varnish by a dentist.

Too much fluoride can discolor the teeth (fluorosis), so you really shouldn't take supplements unless you know you need them.

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14y ago

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