If it is possible, it would be better to keep natural tooth. Endodontists in New Mexico tell that even after endodontic retreatment cured tooth may serve you for many years. Achievements in modern technology are constantly changing and improving methods of root canal treatment, so your endodontist may use new techniques that were not available at the time of your previous endodontic treatment. Thanks to this process your dentist can solve your problems in case of retreatment. Your dentist before starting treatment will discuss with you the possible alternative plans of dental treatment and the chances for successful endodontic re-treatment.