The question should be only a few days after the extraction, can I do a root canal on the other tooth? Usually after 5 to 7 days after extraction, the wound has almost healed and the other tooth can have a root canal. Root canal treatment is used to treat pulpitis as well as apical periodontitis. Root canal therapy is a mechanical and chemical procedure that removes the infected material as well as the pulp, sterilizes and disinfects the tooth so that it can continue to be used. The main process of root canal treatment is to open the pulp chamber, remove the necrotic pulp and infected material, enlarge and unblock the root canals using special dental instruments, and then place sterilized materials into the root canals for a certain period of time to sterilize the canals, and then fill in the remaining tooth with a proprietary dental material to make the remaining tooth sterile and fill in the defects of the tooth after treating the root canals. The whole process requires opening the mouth as well as rinsing, so it is recommended that the wound heals before the root canal is performed or treated as prescribed by the doctor. Generally, after 5-7 days after extraction, the wound has basically healed and the other tooth can be treated with root canal therapy. Dental lesions, it is recommended to go to the regular hospital stomatology department in a timely manner, as prescribed by the doctor for standardized treatment.