144. Efficacy of pentoxifylline-tocopherol-clodronate in the management of mandibular osteoradionecrosis: A multicentre retrospective case series. Issue 10 (December 2022) - Tengku, Sabrina; Tengku, Sabrina; Basu, Ishita; McMahon, Jeremy; Wales, Craig J; Ansell, Mark; McCaul, James A