There are times when a dentist will advise having dental sealants. Dental sealant is a sealant is a clear plastic protective coating for teeth. Dental sealants are normally painted onto the chewing surfaces of the back teeth (molars and premolars).
Molars and premolars have grooves and crevices where food can get stuck. Some of these crevices can be deep enough that the bristles of a toothbrush can’t reach into them. This can provide the prefect environment for bacteria to grow and cause cavities. Having sealants will help to prevent cavities from forming since they cover the groove so that food can not get into them. In the past sealants where mostly used for children though adults can also get sealants when necessary.