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Although root canal treatment has a success rate of around 80%, on occasions root canal treatment can fail due to persistent bacteria. If this is the case then redoing the root canal treatment also known as root canal retreatment is an alternative to tooth extraction. This procedure is usually carried out by a specialist Endodontist under a dental microscope for magnification.
Sometimes there is no pain but there maybe a swelling or a lump on the gum next to the tooth discharging pus.
There is the wait and see approach but usually the only real alternative to undergoing root canal retreatment is to have the tooth extracted.
If teeth are removed and not replaced, there is a chance that the neighbouring and opposing teeth can tilt, overerupt or drift and cause bite disturbances.
No, root canal re-treatment has a success rate of around 75% and it can on occasions fail. If a well carried out root canal retreatment fails, the tooth is either extracted or Apicectomy Microsurgery is carried out to save the tooth.
Patients usually visit a Specialist Endodontist for root canal retreatment as infection in such infections are usually more severe and difficult to manage. Endodontists have had an extra 4 years of specialist training in root canal treatment and use the most innovative techniques and materials including using a dental microscope to ensure the best outcomes are achieved.
Sometimes the reason that the root canal treatment failed in first place maybe due to the tooth having unusual or complex anatomy. In such cases, the endodontist may recommend having a CBCT scan of the tooth carried out before redoing the root canal treatment.
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