The commonly used clinical methods for extracting rotten tooth roots include root forceps and dental tappers. 1. Root forceps: If the residual root is in a high position and the section is above the neck of the tooth, it can be removed directly by clamping it with root forceps. 2. Root extraction with dental tappet: If the position of the root is relatively low, a dental tappet can be inserted between the root and the alveolar bone, and the root can be loosened and then taken out through the wedge force, rotational force, and prying leverage force. 3. In addition, if the adhesion between the root and the alveolar bone is more serious, it is necessary to cut the gums, turn the flap, and remove part of the alveolar bone, so as to remove the root. If there is a rotten tooth root, it is recommended to go to a regular dentist for timely medical treatment and have it extracted by the doctor.