Most endodontically treated teeth last as long as other natural teeth. Like natural teeth, root canal treated teeth are susceptible to decay and/or fracture. In these instances, the root canal can become contaminated.  If this occurs, an endodontic retreatment can predictably save these teeth.

The root canal retreatment process is almost identical to the original procedure. It involves the removal of the previous root canal material, the cleansing of the root canals, and the placement of new biocompatible root canal material.

A root canal retreatment's success rate is over 90% and is a better alternative than tooth extraction for most individuals. Also, the root canal retreatment is less expensive than the restorative dentistry options like dental implants, extensive bridgework, or the creation of aesthetically prosthetic teeth that may be required after tooth extraction. A root canal treatment's success rate is high if the tooth has good bone support, a solid surface, and healthy gums beneath it.