2026 · ANNALI ITALIANI DI CHIRURGIA

Successful Management of an Immature Necrotic Tooth via Intentional Replantation Following Regenerative Endodontic Procedure Failure: A Case Report

De Fontaine, Sarah, Abdellatif, Dina, Iandolo, Alfredo, Mancino, Davide

Journal
ANNALI ITALIANI DI CHIRURGIA
Année
2026
Volume
97
Numéro
1
Pages
26-35
Mois
JAN
DOI
10.62713/aic.4085

Abstract

AIM: To present the successful management of an immature necrotic tooth through intentional replantation (IR) following the failure of a regenerative endodontic procedure (REP), highlighting IR as a viable alternative in complex cases. CASE PRESENTATION: A 9-year-old patient presented with necrotic tooth 45 complicated by right mandibular cellulitis. After initial infection management, REP was attempted following European Society of Endodontology (ESE) guidelines. Despite adherence to protocol, REP failed, as evidenced by persistent symptoms and a recurring fistula. IR was chosen given the unfavourable conditions for apexification and the patient's young age. During atraumatic extraction, the root fractured at a pre-existing defect, necessitating a modified reimplantation approach. The canal was treated ex vivo and sealed with calcium silicate-based cement (CSBC) before reimplantation. RESULTS: At a 36-month follow-up, the tooth remained functional and symptom-free, with no signs of reinfection. CONCLUSIONS: While REPs are promising for managing necrotic immature teeth, failures necessitate alternative strategies. This case highlights IR as a viable treatment, preserving function and aesthetics when regenerative efforts are unsuccessful. Careful case selection, meticulous execution, and long-term follow-up are crucial for optimizing outcomes.

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