Toothache can’t eat must go to dentistry for treatment in time, it has affected the normal life of patients. The toothache is basically caused by pulpitis, mainly due to the presence of long-term caries in the oral cavity, which did not receive timely filling treatment, resulting in the further development of caries, affecting the pulp and causing pulpitis. In this case, the pulp can be opened, drained and sealed in the hospital, after which the pain will be gradually eliminated, then the nerve will be completely removed and the root canal will be filled, and the upper part can be considered for inlay or porcelain crown restoration, and the tooth can be chewed normally. There is also a situation where the patient has a history of biting hard objects, and the root of the tooth may be fractured. If the root is already fractured, the tooth cannot be retained and needs to be extracted in time.