Sealants are placed on teeth to help prevent dental decay. Teeth that have deep grooves are susceptible to decay because the bacteria that causes decay can hide in the grooves of the teeth and cannot be easily removed with brushing or flossing. Most commonly, sealants are placed on the biting surfaces of molar teeth.
A dental sealant would be placed on the biting surface of the molar tooth. A sealant is a plastic coating that fills in the grooves of the tooth, and is then bonded into place. It seals the tooth and helps to prevent decay. Sealants are recommended for molar teeth in young children and can also benefit teeth in some adults. Generally, sealants are placed once the tooth has erupted into the mouth. It is a simple and quick dental procedure, which can help prevent the need for a filling.