There are two major types of filling materials for root canal treatment: 1, filling paste: paste is also divided into many types, including resin-based paste, zinc oxide paste, etc.; however, the more commonly used in clinical practice is resin-based paste, commonly used is AH Plus paste, zinc oxide paste is also a very good root canal filling paste, but a small number of patients are allergic to zinc oxide, for most of the treatment of milk teeth, is to zinc oxide The paste is composed of clove oil and gum, and the state of the gum tip is a solid component, which is needed after the paste and the gum tip are treated together to close the root canal system tightly, thus stopping the infection in the oral cavity and completely blocking the passage to the apical area, so that the tooth treated by the root canal will not cause any pain and other discomfort. This way, the root canal treated tooth will not cause any pain or discomfort.