Sealants are a preventative dentistry measure used to help protect teeth from cavities. The American Dental Association (ADA) estimates that sealants can prevent up to 80% of cavities in molars. A sealant is a thin, plastic coating that is applied to the chewing surfaces of the back teeth. Sealants act as a barrier, protecting the tooth from the acids and plaque that cause cavities. Sealants can last for many years, but they will need to be replaced if they become worn or damaged. Your dentist in Mableton GA can tell you if sealants are right for you or your child.