At the chair, images are shown on screen so the dentist can review them with the patient, which is especially useful for teeth needing retreatment.
- Signs: pain on biting, swelling or a sinus tract, non-healing lesion on X-ray, failed filling.
- Causes: missed or poorly sealed canals, leaking restoration, root fracture.
Many teeth can be saved with retreatment; vertical root fractures or too little tooth structure may require extraction and replacement.
Note: Treatment indications and outcomes depend on each person's oral condition, general health and home care. This article is for general information only; an in-person examination is needed for individual advice.
