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Water, like saliva, helps wash sugars and acid off teeth. It also contains fluoride, a mineral that protects against tooth erosion and is found in toothpaste and some mouthwashes.

Fluoride occurs naturally in water (including some bottled spring water), and most tap water in the United States is also fortified with it.

(Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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