Selective Retreatment in Endodontics

Endodontic retreatment is a well-established procedure used to resolve persistent or recurrent infections in previously treated root canals. Selective retreatment refers to cases in which retreatment done to the diseased root only leaving the other healthy roots untouched.
Our presentation reviews the indications, techniques, challenges, and outcomes of selective endodontic retreatment. Key factors influencing the decision to retreat include the clinical and radiographic presence of persistent periapical pathology, the status of the root canal filling, and the overall prognosis of the tooth. The retreatment procedure often involves the removal of existing root canal materials, disinfection, and refilling with an appropriate obturation material, all while maintaining the structural integrity of the tooth.
Technological advancements, such as the use of microscopes, ultrasonic instruments, and digital radiography, have significantly improved the precision and success rates of selective retreatment. However, challenges remain, including managing complex anatomical variations, post-retreatment complications (e.g., vertical root fractures), and achieving effective sealing of the root canal system.