Cracked teeth do not necessarily need to be extracted, only teeth that are cracked to the deep root of the tooth and have no value for retention need to be extracted, otherwise, filling treatment, root canal treatment, etc. can be carried out to retain the tooth. If a tooth is cracked, it is necessary to actively consult a doctor for examination. Generally, different treatments are chosen according to the stopping point of the crack: 1. If the crack is shallow and has not violated the nerve, filling treatment or crown restoration can be performed to protect the remaining tooth tissue; if the crack is deep and has violated the nerve, but has not reached the pulp chamber floor or the deep root of the tooth, root canal treatment can be considered first, followed by crown restoration. 2. If the tooth is deeply cracked and has reached the pulp chamber or the root, the long-term treatment effect is not good, and the tooth has no retention value, it is recommended to extract the tooth, and implant restoration can be carried out after the tooth is extracted. It is recommended to go to a professional hospital for treatment.