Endodontic Retreatment
What Is Endodontic Retreatment?
In most cases, root canal treatment is successful and the tooth heals normally. However, occasionally a tooth that has received endodontic treatment does not heal properly or develops new problems months or even years after the initial treatment.
Why Would Retreatment Be Needed?
Retreatment may be necessary for several reasons:
- Contamination — New decay or a crack in the tooth allowed bacteria to re-enter the root canal system
- Defective Restorations — A crown or filling that was not placed in a timely manner, or that has become loose or damaged, exposing the tooth to new contamination
- Trauma — A new injury to the tooth
- Cracks — Undetected cracks in the tooth
- Incomplete Treatment — Narrow or curved canals that were not treated during the initial procedure, or additional canals that were not detected
The Retreatment Process
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Evaluation and Access
The endodontist evaluates the tooth and reviews any imaging. An opening is made through the existing restoration to access the root canal filling material.
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Disinfection and Imaging
The previous filling material is carefully removed from the canals. CBCT (3D) imaging may be used to identify additional canals or unusual anatomy. The canals are thoroughly cleaned and disinfected.
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New Filling Materials
The canals are refilled with new gutta-percha and sealer to ensure a proper seal.
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Follow-Up
In some cases, retreatment may require multiple visits to allow for healing and to ensure the infection has been fully resolved. After retreatment, the tooth will need a new permanent restoration from your general dentist.
Have questions about retreatment? Call us at (254) 374-6680 or request an appointment.