Root canal treatment is required for oral diseases such as pulpitis, periapical periodontitis, neuritis, and cysts on the root tip of the tooth. 1. Root canal treatment uses mechanical and chemical methods to remove the exudates and necrotic tissues inside the pulp, carry out thorough disinfection and tight filling, seal the crown, completely remove the infectious factors, avoid secondary inflammation in the pulp, and prevent and control apical periodontal disease. 2. Root canal treatment can effectively improve the pain symptoms, and at the same time can preserve the tooth, belongs to the clinical treatment of endodontics commonly used methods. Although root canal therapy has a wider scope of application and is somewhat more versatile, it also carries certain risks, such as residual pulpitis secondary to root canal therapy, cross-infection, and gaps between teeth due to loose fillings, etc. When root canal therapy is needed, it should be performed in the same manner as other endodontics. When root canal treatment is needed, you should go to a regular hospital, consult a specialist, and follow the doctor’s instructions and recommendations for the treatment.