Mass water fluoridation is one of the most cost-effective measure available to reduce the incidence of tooth decay. The @Environmental @Protection @Agency has determined that the acceptable tap water concentration for fluoride is 0.7 to 1.2 parts per million. Much higher levels are not valuable, as they have been associated with chalky white discolorations of the teeth known as fluorosis.
If you live in an area that does not have fluoride, or you are very susceptible to cavities, your dentist can use high concentration, in-office fluoride treatments and prescribe a fluoride supplement. Supplements are available as gels, tablets, or drops. In some cases, customized trays can be used while you sleep to deliver higher doses of fluoride and help strengthen your teeth.
Sealants can also help reduce cavities on the top and sides of the back teeth. Sealants are formed of a white resin material that blankets the tooth, protecting the vulnerable pits and fissures. They are often used on children's teeth to prevent cavities on their newly developing molars, and they can serve as another cost-effective way to reduce the incidence of cavities on adults, as well. They are generally not used on teeth that already have fillings.
There is one other way to help prevent cavities. Dry mouth (also known as @xerostomia) is a condition where you don't produce enough saliva. It not only leaves a dry, sticky feeling in your mouth and on your tongue, but it can lead to tooth decay. Saliva serves two purposes. First, it helps to digest food.
