The root canal treatment is a treatment method that is used in cases where the tooth nerve, which is called pulp in the inner part of the tooth, is damaged (inflamed) due to caries or trauma to the extent thatcannot be healed, or died. All infected parts of the tooth in bad conditions (such as the existence of pain and abscess in the teeth) that can be lost due to caries, trauma or periodontal problem are cleaned by using the devices with rotary system and the root canal treatment is conducted in order to make these teeth remains in the mouth longer period of time and to prevent further treatment which may occur due to tooth loss and cause material and moral difficulties for people.