Proper dental hygiene and routine dental maintenance of those teeth that have had an endodontic treatment or “root canal” should last as long as other natural teeth. Root canals performed by dentists specializing in root canals, “endodontists” have a 95% success rate. In some cases, however, a tooth that has received endodontic treatment, one having had a root canal, may simply fail to heal. Occasionally, the tooth becomes painful or diseased months or even years after successful treatment.
Why might I need Root Canal or “Endodontic Retreatment”?
As occasionally happens with any dental or medical procedure, a tooth may not heal as expected after initial treatment for a variety of reasons:
Narrow or curved canals were not treated during the initial procedure.
Complicated canal anatomy went undetected in the first procedure.
The placement of the crown or other restoration was delayed following the endodontic treatment.
The restoration did not prevent salivary contamination to the inside of the tooth.
In other cases, a new problem can jeopardize a tooth that was successfully treated.
New decay can expose the root canal filling material to bacteria, causing a new infection in the tooth. A loose, cracked or broken crown or filling can expose the tooth to a new infection. A tooth sustains a fracture. Retreatment is performed in two visits and involves the following:
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