INTENTIONAL REPLANTATION AFTER PERIAPICAL CYST TREATMENT: A CASE REPORT OF PERSISTENT LESION

Intentional reimplantation (IR) is the last alternative for some cases of endodontic retreatment with persistent lesions. In the related case, a 53-year-old male patient presented recurrence of periapical lesions on teeth 11 and 21. Computed tomography showed 2 distinct lesions related to the apex of each tooth. No cracking or root fracture was observed. It was decided to perform a new apicoectomy, and diagnosis of the collected tissue was inflammatory cyst. Tooth 11 presented a fistula 3 months after the procedure. Therefore, IR was considered. The root was extracted and observed under a microscope, confirming absence of cracking. Immediately, retrofilling and reimplantation were performed. The case has been in observation for 4 months with no sign of relapse. In the literature there are scarce reports of cases of IR performed after the removal of periapical cysts. However, this approach can be carried out for dental preservation.