A dental sealant is a clear plastic coating that is painted on back teeth. It acts as a barrier against the sugars and starches that cause tooth decay. For kids, teens and adults, sealants on hard-to-clean back teeth can greatly reduce the risk of cavities. Dental sealants wear off over time, so they may need to be replaced periodically.
Fluoride is a naturally occurring mineral that attracts other minerals to strengthen tooth enamel and deter cavity-causing bacteria. Adults and children benefit from professional fluoride rinses.