Root canal treatment is usually used to treat endodontic and periapical diseases, etc. It usually does not require hospitalization. 1. Root canal treatment is just an oral outpatient operation, which is relatively simple, with fewer steps, and can usually be finished in a short period of time. In addition, root canal treatment uses local anesthesia and does not require general anesthesia, and there is usually no abnormality of vital signs, so most of the root canal treatment can be completed in the outpatient clinic and does not require hospitalization. 2. Root canal treatment requires anesthesia to open the pulp and then extract the pulp, as well as root canal shaping, flushing, and crown restoration if necessary. If local inflammatory reaction is found before root canal treatment, root canal disinfection is needed first. If the root canal procedure is long, several follow-up visits are required to complete it. After having root canal treatment, try to eat a light and soft diet in the short term, avoid chewing too hard food, otherwise it will affect the recovery of the tooth, if there is any adverse reaction during the period, you need to consult your doctor in time.