Root canal therapy belongs to outpatient treatment, and medical insurance cannot be reimbursed, but it can be used in outpatient service if the medical insurance account has money. If a tooth needs root canal treatment during hospitalization, it needs to be determined whether it can be reimbursed according to the specific situation. If the medical insurance does not overspend during hospitalization, root canal treatment can be reimbursed with the approval of the medical insurance office. If the personal medical insurance overspends, the medical insurance office fails to pass the examination and approval, and the root canal treatment cannot be reimbursed, so root canal treatment can only be carried out at its own expense. If the individual has some commercial insurance, root canal therapy is covered by insurance, and part of the expenses can be reimbursed by commercial insurance.