With proper care the teeth that have undergone Root Canal Treatment can last a lifetime; however ,occasionally as it could happen with another dental or medical procedure the tooth may not heal as expected. Contributing to this could be one of the following reasons:
- Narrow or curved canals that were not treated during the initial procedure.
- Complicated canal anatomy that went undetected in the first procedure.
- The placement of the final restoration or crown was delayed following endodontic treatment.
- The restoration didn't prevent salivary contamination to the inside of the tooth.
Other factors that can contribute to cause a Root Canal Treatment to fail:
- New decay can expose the Root Canal system to bacteria, causing a new infection to the tooth.
- A loose, cracked, or broken down filling can expose the tooth to bacterial contamination.
- The tooth sustains a fracture.
If Retreatment is indicated the endodontist will reopen the tooth, remove the existing root canal filling, clean the canals, and examine the tooth under a microscope. A new root canal filling will be placed in the tooth.