To prevent tooth decay you should…
Clean between your teeth daily with dental floss
Brush your teeth at least twice a day with a toothpaste containing fluoride
Rinse daily with a mouthwash that contains fluoride
Avoid snacking on candy, pretzels or potato chips. These treats can remain on the surface of your teeth long after you finish eating. Be sure to brush your teeth immediately after indulging in the snacks mentioned above
Speak with your dentist about using supplemental fluoride, which can strengthen your teeth
Visit your dentist regularly for exams and cleanings