Dental sealants are a dental treatment intended to prevent tooth decay

The chewing surfaces of the molar and premolar teeth have grooves — “fissures” — that make them vulnerable to decay. These fissures can be deep, are difficult to clean, and can be narrower than even a single bristle of a toothbrush. Sealants are a plastic material that is placed in the pits and fissures of the chewing surfaces of your teeth, particularly the molars at the back because toothbrushes can’t reach all the way into the grooves to clean well.