Fracture of the root of the tooth does not necessarily need to be extracted, the treatment mainly consists of splinting and root canal treatment, depending on the location of the root fracture to determine the treatment, the root fracture can occur in the apical 1/3, the middle 1/3 of the root, the cervical 1/3, the details are as follows. 1. Fracture occurs in the apical 1/3 of the root: in most cases, only splinting is needed, with regular checkups, and when pulpal necrosis occurs, then root canal treatment is performed. 2. Fracture occurred in the middle 1/3 of the root: fixed with a splint, when there is displacement of the crown end of the tooth, reset and re-fixed, review once a month, when there is a tendency of inflammation or necrosis of the pulp, then root canal treatment. 3. Fracture occurs in the cervical 1/3: when the fracture is connected with the gingival sulcus, natural healing will not occur. If the fracture line is 1~4mm below the gingiva, the broken root is longer than the crown of the tooth of the same name, and the periodontal condition is good, then gingival incision or orthodontic traction can be done to maintain the ideal position of the root, and then the crown can be repaired with a stump core. It is recommended to go to the hospital in time for treatment when root fracture occurs in a tooth.