Dental sealants are made up of a thin plastic coat that is placed on molars and premolars. Usually used for children between the ages of six and eighteen years, dental sealants protect the teeth from tooth decay.
Molars and premolars have a lot of fine grooves on their surfaces in which food particles get lodged. Left untreated, bacteria starts growing in these grooves and eventually causes cavities. Dental sealants can help prevent the formation of cavities in these teeth.