A sealant is a clear or shaded plastic material that is applied to the chewing surfaces (grooves) of the back teeth (premolars and molars), where four out of five cavities in children are found. This sealant acts as a barrier to food, plaque and acid, thus protecting the decay-prone areas of the teeth.

Good oral hygiene removes bacteria and the left over food particles that combine to create cavities. For infants, use a wet gauze or clean washcloth to wipe the plaque from teeth and gums. Avoid putting your child to bed with a bottle filled with anything other than water. See “Baby Bottle Tooth Decay” for more information. For older children, brush their teeth at least twice a day. Also, watch the number of snacks containing sugar that you give your children....

Healthy eating habits lead to healthy teeth. Like the rest of the body, the teeth, bones and the soft tissues of the mouth need a well-balanced diet. Children should eat a variety of foods from the five major food groups. Most snacks that children eat can lead to cavity formation. The more frequently a child snacks, the greater the chance for tooth decay. How long food remains in the mouth also plays a role. For example, hard candy and breath...