Fissure sealants are protective applications that keep teeth healthy for a long time. Fissures are deep grooves and pits on the teeth and these areas are very vulnerable to plaque retention and tooth decay. Filling these with fluid materials called fissure sealants ensures that the teeth are protected against dental caries in a healthy way for a long time. Fissure sealants are very useful, especially when permanent molars erupt, when children cannot clean these areas adequately. Patients who have fissure sealants are satisfied with the procedure both because it is a painless and easy procedure and because it is an application that protects the teeth from decay.