Root Canal Retreatment
Root canal retreatment is an endodontic procedure performed when a previous root canal treatment has not achieved the expected healing or a new infection has developed. The aim is to remove the existing canal filling material, re-clean the canals, and refill them.
Causes of failed root canal treatment include insufficient canal cleaning, missed root canals, leakage in the canal filling, and new cavity formation. Patients typically experience recurring symptoms such as pain, swelling, or fistula.
During the retreatment process, the existing crown or filling material is first removed. The old canal filling is then carefully extracted using solvent solutions and specialized instruments. After the canals are reshaped and disinfected, they are refilled and sealed with an appropriate restoration.
Who Is This Treatment For?
Root canal retreatment may be necessary in the following situations:
- Patients experiencing persistent pain or infection after previous root canal treatment
- Cases where X-rays show the root tip lesion has not healed
- When leakage or inadequate filling is detected in the canal restoration
- Teeth with missed or untreated extra root canals
- Teeth that have developed new decay beneath a crown
Frequently Asked Questions
Why does a root canal need to be repeated?
Inadequate canal cleaning, missed root canals, filling leakage, or new cavity formation can cause the previous treatment to fail, necessitating retreatment.
Is root canal retreatment painful?
Since the procedure is performed under local anesthesia, no pain is felt during the treatment. Mild sensitivity for a few days afterward is considered normal.
What happens if retreatment is unsuccessful?
If retreatment fails, alternative treatments such as apical resection (surgical endodontics) are considered. As a last resort, tooth extraction and implant placement may be planned.
This page is for general informational purposes only and does not constitute medical advice. Always consult a qualified dental professional before starting any treatment.