Fluoride
Fluoride is a substance that helps teeth become stronger and
resistant to decay. Regularly drinking fluoridated water and daily
brushing and flossing ensures significantly fewer cavities. Many, if not
most, public water sources contain fluoridated water. Your dentist can
evaluate the level of fluoride in your primary drinking water source and
recommend fluoride supplements if necessary. There are also many kinds
of toothpastes, mouthwashes and even some dental flosses that contain
fluoride.