The procedure of sealing pits and fissures is very important for dental prophylactics. It is mostly performed on molars and premolars. The doctor decides whether or not sealing should be performed. Placing a sealant is painless and comfortable for the patient. Light-curable sealant is most popular at the moment and, thanks to its properties. The time duration of the procedure is reduced to a minimum, which is an important factor in children. It is a routine prophylactic procedure that reduces caries by around 90%.