Schedule 0 [P-62] Effect of Thickness Diameter of Mixed Composition Layered Discs on Sintering Distortion of Zirconia FPDs *Mizuho Hirano1, Syuntaro Nomoto1, Haruno Arai1, Rika Kawatsu1, Ayaka Okano1, Hideshi Sekine1 (1. Dept. of Fixed Prosthodontics, Tokyo Dental College)