Although initial root canal treatment was successfully completed the tooth may sometimes fail to heal. The tooth may become painful or diseased months or even years after successful treatment due to various reasons:
When this happens the endodontist can try to save the tooth by retreating the canal system . It involves removing the existing canal filling , exploring for new or untreated canals. This is usually done using an operating microscope, ultrasonics and digital imaging and will involve more time and effort in doing the procedure. The canals are then sealed with the canal filling . Sometimes retreatments are done in conjunction with endodontic surgery .Your endodontist will discuss your options and recommend appropriate treatment.