The correct term for worm teeth should be caries. Caries pain is usually caused by caries or pulpitis, and usually does not require extraction, and natural teeth can be preserved through dental restoration and root canal treatment. 1. Restorative dentistry: If the affected tooth is only carious, the lesion can be terminated and the function and aesthetics of the tooth can be restored through decay removal, filling or inlay restoration. 2. Root canal treatment: If the affected tooth has pulpitis, root canal treatment is required. After perfect root canal treatment, the crown shape is repaired and the natural tooth can be retained. The function and aesthetics of natural teeth as well as the protection of the alveolar bone are better than denture, so they should be retained as much as possible. If caries pain is severe or accompanied by other symptoms, you should go to the hospital promptly.