Dental sealants are thin plastic coatings that are applied to the chewing surfaces of teeth. By filling and covering the microscopic grooves around the teeth, these tooth sealants prevent dental cavities and microbial build-up. Dental sealants are frequently placed on the backs of premolars and molars since chewing necessitates their use. The adult dental sealant forms a protective coating over the enamel by quickly bonding into the grooves and depressions of your teeth.