It's sad that many children have some form of tooth decay, because it could be prevented. One-half of all 4 year old children have some decay. Tooth decay is the result of acids produced by bacteria found naturally in the mouth. The acids erode the enamel of the teeth, causing a cavity. Whether or not a cavity occurs depends on the strength of the teeth, brushing and flossing habits, and foods eaten.
Strong teeth can resist cavities better than weak teeth.
A good diet helps make strong teeth. One mineral, flouride is especially important in making strong teeth. You can get flouride by drinking water that contains flouride. Find out if your drinking water contains flouride. You can also get some flouride from using toothpaste or mouth rinses with flouride.