The process of extracting a bad black worm tooth is divided into taking a radiograph of the tooth’s root tip, local anesthesia, loosening the affected tooth, extracting the affected tooth, and restoring the socket. The process of extracting a bad tooth is as follows. 1. Taking apical radiographs of the tooth: Taking apical radiographs of the tooth before extraction of the decayed tooth can determine the relationship between the tooth and the surrounding tissues. 2. Local anesthesia: local infiltration anesthesia or block anesthesia is chosen according to the location of the tooth. 3. Loosening the affected tooth: If the tooth is decayed and cannot be extracted directly with dental forceps, the tooth can be pried with a toothpick on the proximal and middle buccal side of the tooth first. 4. Extraction of the affected tooth: if the caries tooth still has part of the crown, the tooth can be loosened and then extracted with an apical forceps; if the caries tooth has only a residual root and is flush with the gingival margin, the gingiva can be incised to lift the mucoperiosteal flap, remove part of the bone, and then extract the residual root. 5. Restore the alveolar socket: massage the alveolar socket after tooth extraction to facilitate the recovery of the extraction socket. If you want to remove bad teeth, you’d better choose to go to the regular hospital, so that on the one hand, you can prevent postoperative infection, and on the other hand, you can also avoid postoperative complications.