Persistent discomfort after a previous root canal does not automatically mean tooth removal is necessary. Modern techniques allow dentists to treat many recurring infections successfully through retreatment or apicoectomy, depending on the source of the problem. Patients considering root canal treatment in Hudson, NH benefit from an accurate diagnosis that focuses on preserving natural teeth whenever possible. Early evaluation, thoughtful treatment planning, and quality follow-up care continue to play a major role in achieving lasting oral health.