Dental sealants are thin protective coatings applied to the chewing surfaces of the back teeth, especially molars and premolars. These teeth often have deep grooves and pits where food particles and bacteria can easily collect, making them more likely to develop cavities. Sealants create a smooth protective barrier over these areas, helping prevent decay before it starts. This treatment is quick, painless, and commonly recommended for children and teens, although adults may benefit from sealants as well. Once applied, sealants can protect teeth for several years with proper care and regular dental visits. They are an excellent preventive option because they reduce the risk of cavities in areas that are difficult to clean with a toothbrush. Dental sealants work best when combined with good brushing habits, flossing, routine cleanings, and a healthy diet.