Endodontic retreatment of teeth with cystic lesions and root perforation: clinical case report.

Higor de Almeida Barbosa, Nayara Rodrigues Nascimento Oliveira, Kellen Cristina Mendes Azevedo, Gisele Rodrigues da Silva, Leandro Carvalho Quirino, Maria Antonieta Veloso Carvalho de Oliveira

Introduction: The main cause of endodontic treatment failure may be related to lapses in technique, such as microorganisms left within the root canal and iatrogenesis. These problems may be solved through retreatment and, if necessary, parendodontic surgery. Objective: We describe endodontic retreatment followed by parendodontic surgery in a patient with periapical lesions in the roots of teeth #21 and #22, and follow-up exams over 5 years and 5 months. Methods: Tooth #21 presented a vestibular fistula and purulent secretions during biomechanical preparation; whereas tooth #22 had a perforation in the cervical third that extended to the region of the periodontal ligament in the middle third. After application of intracanal medication for two months, the teeth were filled, the lesion removed and perforation filled with mineral trioxide aggregate (MTA). After histopathological examination, the lesion tissue was diagnosed as a periapical cyst. Conclusion: Clinical case follow-up showed that with the persistence of a fistula and a periapical cystic lesion, surgical retreatment was the most efficient option for eliminating infection and repairing periapical tissues.

Keywords: Case reports. Cist. Endodontics. Surgical Endodontics. Retreatment.

How to cite: Barbosa HA, Oliveira NRN, Azevedo KCM, Silva GR, Quirino LC, Oliveira MAVC. Endodontic retreatment of teeth with cystic lesions and root perforation: clinical case report. Dental Press Endod. 2018 Sept-Dec;8(3):61-6. DOI: https://doi.org/10.14436/2358-2545.8.3.061-066.cre

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