Root canal RETreatment
Root canal retreatment is a procedure performed when a tooth that has previously undergone root canal therapy fails to heal properly or develops a new infection. During retreatment, the existing root canal filling material is carefully removed, and the root canal system is thoroughly cleaned, disinfected, and resealed. Retreatment addresses persistent or recurrent infection and provides an opportunity to save the natural tooth rather than having it extracted.
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The first step is to profoundly numb the tooth, which is achieved by placing a local anesthetic into the gum next to the tooth. After the tooth is numb, a rubber dam barrier is placed around the tooth to provide protection to the patient and also ensure the tooth stays clean throughout the procedure.
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Following the numbing and isolation of the tooth, the tooth is accessed to get to the root canals. Old fillings or decay is may be removed during this process.
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Once the canals are identified within the tooth, the original root filling material is removed. Any possible untreated canals are also identified. The canals are then cleaned, shaped, and disinfected using small instruments and disinfectant solutions.
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After the canals are fully cleaned and shaped, a filling material called gutta percha is placed into each canal to provide a seal. The access is then closed with either a temporary or permanent filling. If a temporary filling was placed, the patient will return to their dentist for a permanent filling.
How is a retreatment performed?
Sometimes, a tooth that has had root canal treatment may not heal properly and another treatment is needed. Watch this video to understand how root canal retreatment can save your tooth and learn more about the endodontists who specialize in this dental procedure.
After treatment
It is normal to have some mild tenderness or soreness for a few days after root canal treatment. This usually improves gradually as the area heals. Avoid chewing on the treated tooth until the numbness has completely worn off, and be sure to follow your dentist’s recommendations for the final restoration of the tooth. If you develop significant swelling, severe or increasing pain, or notice that your bite feels uneven, please contact our office so we can help.
Follow-Up
If infection or inflammation was present around the root of the tooth, the surrounding bone and tissues will need time to heal after root canal treatment. This healing process occurs gradually and may take several months or longer. Follow-up X-rays may be recommended to confirm that the area is healing as expected.