When should radiographs be retaken to monitor healing or changes during endodontic treatment?

• A. After changes in canal preparation or healing assessment.
• B. Only at initial evaluation.
• C. Never.
• D. Only after obturation.

Answer: (A)

Radiographs are used to track how treatment steps and the healing process are unfolding. You retake them after changes in canal preparation to verify that the new shaping and working length are appropriate, and to check for any new issues such as transportation, ledges, or perforations. They’re also used during the healing phase to monitor whether periapical tissues are responding and lesions are resolving over time. Taking radiographs only at the initial visit misses important feedback during treatment, and waiting never isn’t helpful for guiding care. While radiographs are also needed after obturation to confirm sealing, the key times to retake for monitoring progress are after preparation changes or during healing assessment.