RT Journal Article SR Electronic T1 Regeneration of Mandibular Osteoradionecrosis Defect with Platelet Rich Plasma Gel JF In Vivo JO In Vivo FD International Institute of Anticancer Research SP 889 OP 893 VO 24 IS 6 A1 M. SCALA A1 M. GIPPONI A1 P. MEREU A1 P. STRADA A1 R. CORVĂ’ A1 A. MURAGLIA A1 M. MASSA A1 S. BERTOGLIO A1 P. SANTI A1 F. CAFIERO YR 2010 UL http://iv.iiarjournals.org/content/24/6/889.abstract AB Osteoradionecrosis (ORN) of the mandible is a major complication of radiation therapy of head and neck cancer with a potential of occurrence ranging from 5 to 15% of the irradiated patients. Due to the gradual necrotic process, the mandibular bone becomes necrotic and looses its spontaneous regeneration ability. Containing an elevated content of mitogenic and osteogenic growth factors, the use of platelet rich plasma (PRP) from autologous source has been suggested to re-activate the healing process of osteogenesis. Autologous PRP gel was introduced into the ORN necrotic defect of a 44-year old patient previously treated for squamous cell carcinoma of the tongue, subsequent to proper surgical debridement. We report post-operative two-year follow-up demonstrated by panoramic X-ray which showed regain of the mandibular bone continuity with a complete repair of the necrotic defects. We conclude that this case illustrates an incident of successful regeneration of ORN critical-sized defect of the mandible by autologous PRP gel.