Approximately over 15 million root canals are performed annually to remove infection from the inside of a tooth. If you are one of these 15 million people, there is a chance that your treated tooth can become infected again. If so, you may require a root canal re-treatment to cleanse the infection once again. However, in some cases of failed root canals, the infection progresses enough that the tooth is beyond saving and will need to be extracted. A failed root canal extraction is not uncommon and can happen years after your original root canal. If you are experiencing tooth pain in a tooth or area of the mouth you have previously received a root canal in, then you may need to speak to our periodontist in Albuquerque, NM, Dr. Alfred Lopez, about treatment for a failed root canal.