Schedule 1 [課題6] Investigation of anterior CAD/CAM resin crown trouble occurrence *Yuki Nakamura1, Yu Takaesu1, Kouta Isshii2, Yuichiro Yamaguti1, Ryo Komine1, Hiroki Yamada1, Takashi Matuura1 (1. Section of Fixed Prosthodontics, Department of Oral Rehabilitation, Fukuoka Dental College, , 2. Fukuoka Dental College Medical&Dental General Hospital Central Dental Laboratory)