Schedule 1 [O1-24] Relationship between asporin and pathological progression of temporomandibular joint osteoarthritis *Aoi Owada1, Toshihiko Kamikawatoko1, Mamoru Yotsuya1, Yuu Tsuyuki1, Takanori Sakai1, Syuntaro Nomoto1, Akihiro Ishikawa1, Hideshi Sekine1 (1. Department of Fixed Prosthodontics, Tokyo Dental College)