Mouth A healthy smile is a bonus at any age. If you haven't learned the basics of oral health care, it is not too late to start. And even if you have, it's a good time to review.
Tooth decay is caused by bacteria that normally live in the mouth.
The bacteria cling to teeth and form a sticky, colorless film called dental plaque. The bacteria in plaque live on sugars and produce decay-causing acids that dissolve minerals on tooth surfaces. Just as with children, fluoride is important for adult teeth. Research has shown that adding fluoride to the water supply is the best and least costly way to prevent tooth decay. In addition, using fluoride toothpastes and mouthrinses can add protection.