Most of the time cavities are due to a diet high in sugary foods and a lack of brushing. Limiting sugar intake and brushing regularly, of course, can help. The longer it takes your child to chew their food, the longer the residue stays on their teeth and the greater the chances of getting cavities.
Every time someone eats, an acid reaction occurs inside their mouth as the bacteria digests the sugars. This reaction lasts approximately 20 minutes. During this time the acid environment can destroy the tooth structure, eventually leading to cavities.
A consistency of a person’s saliva also makes a difference as thinner saliva breaks up and washes away food more quickly. When a person eats diets high in carbohydrates and sugars, they tend to have thicker saliva, which in turn produces more of the acid-producing bacteria that causes cavities.
Some Tips for cavity prevention:
Limit frequency of meals and snacks.
Encourage brushing, flossing, and rinsing.
Watch what you drink.
How Do I Prevent Cavities?
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.
The American Academy of Pediatric Dentistry recommends visits every six months to the pediatric dentist, beginning at your child’s first birthday. Routine visits will start your child on a lifetime of good dental health.
Your pediatric dentist may also recommend protective sealants or home fluoride treatments for your child. Sealants can be applied to your child’s molars to prevent decay on hard to clean surfaces.
Avoid sticky foods.
Make treats part of meals.