SUCCESSFUL ENDODONTIC RETREATMENT IN THE LOWER RIGHT FIRST PREMOLAR, WITH DISTOLINGUAL EXTERNAL ROOT RESORPTION – CASE REPORT

Abstract

A 43-year-old female patient, classified as ASA I, underwent endodontic treatment on tooth 43. After a 1-year follow-up radiograph, failure of the previous treatment was observed. Retreatment was indicated due to distoligual root resorption (observed on computed tomography). Gutta-percha was removed with the Prodsign Logic RT #25.08 system. Electronic foraminal odontometry was performed with the locator. Foraminal debridement was performed with a Solla Collors 16.02 instrument to the actual length of the tooth. Subsequently, root canal preparation was performed with the Solla Collors wide #60.03 system. Intracanal medicament Ultracal was used for 15 days. Root canal filling performed using the hybrid Tagger technique, combined with injected Bio-C Sealer cement. Endodontic retreatment was followed up one year after treatment. The treatment was successful, with lateral bone formation and periodontal ligament formation, thus closing the external resorption.