How to Preventing Cavities

American Dental Association suggest that a child's first visit to the dentist at one year old. At this visit, the dentist will explain proper brushing and flossing techniques (you need to floss once your baby has two teeth that touch) and conduct a modified exam while your baby sits on your lap.
Earlier visits can help early detection of potential problems,

All primary teeth have come in (usually around age 2½), your dentist may start applying topical fluoride. Fluoride hardens the tooth enamel, helping to ward off the most common childhood oral disease, dental cavities (also called dental caries). Cavities occur when bacteria and food left on the teeth after eating are not brushed away. Acid collects on a tooth, softening its enamel until a hole — or cavity — forms. Regular use of fluoride toughens the enamel, making it more difficult for acid to penetrate.

Many towns require tap water to be fluoridated, others don't. If the water supply is not fluoridated, or if your family uses purified water, ask your dentist for fluoride supplements. Most toothpastes contain fluoride but toothpaste alone will not fully protect a child's mouth. Be careful, however, since too much fluoride can cause tooth discoloration. Check with your dentist before supplementing.

Discoloration can occur from prolonged use of antibiotics, and some children's medications that contain a large amount of sugar. Parents should encourage children to brush after they take their medicine, particularly if the prescription will be long-term.

Our child's permanent teeth grow in, the dentist can help seal out decay by applying a thin wash of resin to the back teeth, where most chewing occurs. Known as a sealant, this protective coating keeps bacteria from settling in the hard-to-reach crevices of the molars.

Dental research has resulted in increasingly sophisticated preventative techniques, including fillings and sealants that seep fluoride, a dentist's care is only part of the equation. Follow-up at home plays an equally important role. For example, sealants on the teeth do not mean that a child can eat sweets uncontrollably or slack off on the daily brushing and flossing — parents must work with kids to teach good oral habits health .