RecruitingPhase 3Biological interventionBiologic Augmentation of TMJ Arthroscopy Using BMACThe goal of this clinical trial is to learn about the efficacy of using Bone Marrow Aspirate Concentrate (BMAC) during temporomandibular joint (TMJ) arthroscopy compared to standard arthroscopic procedures with corticosteroid (CS) injections in patients with pain (arthralgia) of the temporomandibular joint (TMJ) that has failed to respond to conservative treatment. The main question it aims to answer: Does BMAC injection reduce the amount of inflammation and structural damage in the TMJ? Researchers will compare BMAC injection to corticosteroid injections see if BMAC injection helps . Participants will : * Be randomized to receive either BMAC or CS injection during TMJ arthroscopy * Visit the clinic for 3 follow up visits over 6 months and answer questionnaires * have 2 MRIs of their jaw