Depending on the reason(s) why your root canal treatment failed, you may be able to get the procedure redone. If the failure of the root canal was due to infection because the cavity or root was not cleaned fully before being filled, you may be able to have this redone with a new root canal treatment. However, if the failed root canal has caused further damage to the tooth, there may not be enough stable tooth remaining for the procedure to be carried out again with a good chance of success. It is sometimes the case that the tooth may need to be extracted. Your dentist can discuss the options with you.
