What is Endodontic Retreatment?
With the appropriate care, your teeth that have had endodontic treatment will last as long as other natural teeth. Yet, a tooth that has received treatment may fail to heal or pain may continue to exist. Sometimes, the pain may occur months or years after treatment. If so, Endodontic Retreatment may be needed.
Improper healing may be caused by:
- Curved or narrow canals were not treated during the initial treatment.
- Complicated canals went undetected during the initial treatment.
- The crown or restoration was not placed within the appropriate amount of time following the procedure.
- The crown or restoration did not prevent saliva from contaminating the inside of the tooth.
In some cases, new problems can influence a tooth that was successfully treated:
- New decay can expose a root canal filling material, causing infection.
- A cracked or loose filling or crown can expose the tooth to a new infection.
Once retreatment has been selected as a solution to your problem, the doctors will reopen your tooth to gain access to the root canal filling material. This restorative material will be removed to enable access to the root canal. The doctors will now clean your canals and carefully examine the inside of the problematic tooth. Once cleaned, the doctors will fill and seal the canals and place a temporary filling in the tooth.
At this point, you will need to return to your dentist as soon as possible in order to have a new crown or restoration placed on the tooth to restore full functionality.
New trauma, deep decay, or a loose, cracked, or broken filling can cause new infection in your tooth. In some cases, the endodontist may discover additional very narrow or curved canals that could not be treated during the initial procedure.
We recommend that you call your restorative dentist as soon as possible to make your follow-up appointment. Dentists' schedules tend to book quickly. It is recommended that you have your permanent restoration placed 2-3 weeks after your root canal treatment to allow healing to take place, but not longer than one month after the procedure. This step is imperative for the long-term prognosis of your tooth.
The temporary filling placed in the biting surface of your tooth is designed to last ideally two to four weeks, not longer than six to eight weeks. It is crucial to see your general dentist for a permanent restoration. Waiting longer than eight weeks can cause your temporary filling to leak, thus contaminating your newly completed root canal therapy.