Most teeth can be treated. Occasionally, a tooth can’t be saved because the root canals are not accessible, the root is severely fractured, the tooth doesn’t have adequate bone support, or the tooth cannot be restored. However, advances in endodontics are making it possible to save teeth that even a few years ago would have been lost. When endodontic treatment is not effective, endodontic surgery may be able to save the tooth.
With proper care, you’ll keep teeth that have had root canal treatment for a lifetime but it’s possible for those teeth to heal improperly, becoming painful or diseased months or even years after treatment. If this happens to your treated teeth you have a second chance to save the tooth with retreatment. An additional procedure may be able to diminish dental pain or discomfort and promote healing. If you suspect a tooth that had a prior root canal requires retreatment, visit your dentist or endodontist for evaluation.
As with any dental or medical procedure, it’s possible your tooth won’t heal as expected after initial treatment for a variety of reasons, including:
A new problem can also jeopardize a tooth that was successfully treated, such as:
During retreatment, the endodontist will reopen your tooth and remove the filling materials that were placed in the root canals during the first procedure. The endodontist then carefully examines the tooth, looking for additional canals or new infection. The endodontist then removes any infection, cleans and shapes the canals, and places new filling materials. The opening is then sealed with a temporary filling. Once the tooth heals, which may require more than one visit, a new crown or other restoration is placed on the tooth to protect it.