The dreaded root canal has become a cliché to describe any painful experience that you would rather not have, as in, “A midnight Twilight marathon? I would rather have a root canal.” The process is actually fairly painless, but, like a Twilight marathon, probably not an experience you’d seek out. Unfortunately, sometimes a tooth does not heal properly after it has been cleaned out, and re-treatment becomes necessary. Dr. Justin Kolnick, an experienced endodontist in Mt. Kisco, NY, uses the latest in dental technology to restore your tooth good health.


What Causes a Root Canal to Fail?

Root canal failure can occur months and even years after the original procedure. Failure can be attributed to a number of conditions:

  • Excess saliva in the treatment area
  • Inexperienced dentist performing the procedure
  • Infected canals were overlooked
  • Lengthy delay placing dental crown
  • Cracks in a crown or tooth introduce new infection

Essentially, the failure is due to one of three things; either the original procedure failed to remove all of the infected tissue, something prevented proper healing, or a successfully treated tooth has become infected once again.


What Is Endodontic Retreatment?

New pain or visible cracks in the tooth can indicate a failed root canal. However, with the right treatment, the tooth can still be saved. If retreatment is an option:

  1. Your tooth will be reopened and cleaned thoroughly.
  2. Your dentist will use sophisticated tools to search for narrow canals that may have been overlooked in the first procedure.
  3. If canals are particularly narrow or blocked, surgery may be required to seal off the end of the root to prevent further decay.
  4. A temporary filling will be placed in the tooth.
  5. A new crown will be fitted to your tooth, restoring it to full function.


If you experience new pain in a tooth that has been treated, call 914.750.4034 to schedule an appointment with Dr. Kolnick right away to determine whether you are a candidate for an endodontic retreatment. It might even be better than a root canal.