How does root canal treatment for teeth work?

Root canal treatment is a dental procedure used to treat diseases such as pulpitis and apical periodontitis. This method generally involves several key steps: 1. The dentist will first administer anesthesia to the affected tooth, remove the decayed tissue, and open the pulp chamber; 2. Specialized instruments are then used to clean, shape, and disinfect the root canal system, effectively removing infected tissue within the canals; 3. The root canals are tightly filled with sealing materials and gutta-percha to prevent the occurrence of apical periodontitis and promote healing of the affected area. The entire treatment process usually requires 3 to 4 visits, with each session lasting approximately 30 minutes to one hour. After completion of the root canal treatment, patients should follow the dentist's instructions for regular follow-up visits to ensure treatment effectiveness and prevent recurrence. This treatment method is widely used in dentistry and is one of the effective means for treating pulp and apical diseases.