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Root canal retreatment
When a previously treated tooth has not healed as expected, retreatment may offer another opportunity to preserve it.
Understanding treatment
What is root canal retreatment?
Root canal retreatment reopens a previously treated tooth so the endodontist can remove the earlier filling materials, inspect the canals under magnification, clean areas that may still harbor infection, and seal the tooth again.
When it may be recommended
- A tooth remains painful or becomes painful again after earlier root canal treatment
- New infection develops months or years after treatment
- Narrow, curved, or previously untreated anatomy may be involved
- A restoration or new decay has allowed bacteria to re-enter the tooth
What to expect
Evaluation
The endodontist reviews symptoms and imaging and examines the tooth to determine why healing has not occurred.
Reopening the tooth
Restorative materials are carefully removed as needed to regain access to the root canal system.
Cleaning and inspection
The canals are cleaned and examined under illumination and magnification for anatomy or infection that may have been missed.
Sealing and restoration
The canals are filled and sealed again. A new final restoration may then be completed by the restoring dentist.
Frequently asked questions
Is retreatment always possible?
Not every tooth is a candidate. The examination, remaining tooth structure, anatomy, and prior treatment guide the recommendation.
What if the canals cannot be reached?
When conventional retreatment cannot adequately address the source of infection, apicoectomy may be discussed.
Will I need a new crown?
Existing restorations may need to be removed or replaced. The endodontist and restoring dentist will explain the plan for your tooth.
Need an evaluation?
Let’s plan your visit.
Your examination and imaging determine which treatment is appropriate for your tooth.
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