Dental sealants are a preventive dental treatment designed to protect the chewing surfaces of your teeth, particularly the molars and premolars, from decay. These sealants are thin, protective coatings applied to the grooves and pits of your teeth, where food particles and bacteria are most likely to get trapped. By forming a smooth, protective barrier, dental sealants help prevent cavities and maintain oral health, especially in children and teenagers who are at higher risk for tooth decay.