During root canal treatment, it removes the dental nerve with the pulp, which is the soft tissue in the natural cavity called root canal, into the hardening of the tooth, and fills the gap opened after opening the inside of the tooth. If the blooms that occur in the tooth are fractured in the early period, they move deeper into the caries and cause inflammation of the nerves in the tooth. Inflammation of the dental nerves causes the child to experience extensive toothache.