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PRF-Assisted Regenerative Endodontic Retreatment of an Immature Tooth: A 4-Year Follow-Up
Pegah Sarraf1, Bardia Goldani1, Mehrfam Khoshkhounejad1
1Department of Endodontics, School of Dentistry Tehran University of Medical Sciences Tehran Iran.
Clinical Case Reports
|October 23, 2025
Abstract:
Regenerative endodontic retreatment can be a viable nonsurgical option for previously treated immature teeth with persistent periapical pathology. With proper case selection, meticulous disinfection, and preservation of stem cell viability, long-term healing and continued root development can be achieved even in complex retreatment cases.

