*Tomoya Ishimaru¹, Taihiko Yamaguchi² (1. Department of Crown and Bridge Prosthodontics, Hokkaido University Hospital, 2. Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University)

*Hiroyuki Saito¹, Daisuke Niimi¹, Manami Aizawa¹, Rin Yoshioka¹, Rio Tomita¹, Mika Maeno¹, Sara Tuason¹, Ryusuke Sato¹, Keiichiro Uchikura¹, Takao Masuya¹, Kohji Nagata^1,2 (1. Tokyo, 2. DepartmentDepartment of Advanced Prosthodontics, Tokyo Medical and Dental University)

*Eiji Gaijo¹, Madoka Matsumae², Kentaroh Nakamura³, Morimasa Yamada³ (1. Chugoku Shikoku Branch, 2. Kansai Branch, 3. Tokai Branch)

*Yu Yamamoto¹, Masaru Kaku¹, Katsumi Uoshima¹ (1. Division of Bio-Prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental sciences, Niigata Universit)

*Tomonari Okawa¹, Aline Stieper², Matthias Kern², Kentaroh Nakamura¹, Morimasa Yamamoto¹ (1. Tokai Branch, 2. Christian-Albrechts-University to Kiel)

*Yuichiro Yamaguchi¹, Yu Takaesu¹, Kota Isshi², Naoyuki Kaga¹, 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)

*Yoichi Terao¹, Tomonari Okawa¹, Aya Ito¹, Kentaroh Nakamura¹, Morimasa Yamamoto¹ (1. Tokai Branch)

*Keisuke Mori¹, Tomonari Okawa¹, Kentaroh Nakamura¹, Morimasa Yamamoto¹ (1. Tokai Branch)

*Ryuichi Shiroshita¹, Nobuyuki Nakai¹ (1. Kansai Branch)

*Koki Iwamoto¹, Takahiro Kato¹, Masatoshi Yamazoe¹ (1. YAMAKIN CO.,LTD.)

*Mineyo Sone¹, Nastumi Obinata¹, Tasturo Takeda¹, Ryo Saito¹, Daiki Negishi¹, Mie Numazawa¹, Kazuhiko Okamoto¹ (1. Division of Removable Prosthodontics, Department of Restorative and Biomaterials Sciences, Meikai University School of Dentistry)

*Kotaro Sato¹, Hideharu Hibi^1,2 (1. Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, 2. Department of Oral and Maxillofacial Surgery, Nagoya University Hospital)

*Kosei Kobayashi¹, Shusaku Tayama¹ (1. Tokyo Branch)

*Toru Nishioka¹, Shohei Nishida¹, Kentaroh Nakamura², Morimasa Yamamoto² (1. Kansai Branch, 2. Tokai Branch)

*Yuichi Yamatani¹, Takumi Kasahara¹, Honoka Nakamura¹, Sieun Lee¹, Mariko Hattori², Noriyuki Wakabayashi², Manabu Kanazawa^1,3 (1. Dental Laboratory, Tokyo Medical and Dental University Hospital, 2. Advanced Prosthodontics, Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University, 3. Digital Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University)

*Yasuhiro Nishi¹, Mamoru Murakami², Shunich Hamamura³ (1. Department of Oral and Maxillofacial Prosthodontics, Kagoshima University Graduate School, 2. Department of Removable Prosthodontics and Implant Dentistry, Kagoshima University Hospital, 3. Division of Clinical Engineering, Kagoshima University Hospital)

*Aiko Shinmachi¹, Yutaka Shinmachi¹, Naoki Kodama² (1. Kansai branch, 2. Department of Prosthodontics, Division of Dentistry, Okayama University Hospital)

*Taiga Edono¹, Koichiro Ogami¹, Fusa Maeta¹, Reona Hashimoto¹, Takayuki Ueda² (1. Division of General Dentistry, Chiba Dental Center, Tokyo Dental College, 2. Department of Removable Prosthodontics & Gerodontology, Tokyo Dental College)

*Miki Hoshi¹, Nobuko Shimazaki¹, Akihiro Fukutoku¹, Hiroaki Satoh¹, Kensuke Tsukatani¹, Shoko Chiba¹, Atsuo Nakanishi¹, Chikayuki Odaira^1,2, Kazuhiro Kon¹, Norimasa Tanabe¹ (1. Department of Prosthodontics and Oral Implantology School of Dentistry Iwate Medical University, 2. Hokkaido/Tohoku Branch)

*Kodai Kudo¹, Sho Usuda¹, Akiteru Chen¹, Taneaki Nakagawa¹, Nobuyuki Horie¹ (1. Department of Dentistry and Oral Surgery, Keio University School of Medicine)

*ryuta tanaka¹, kenichiro kobayashi¹, sakurai kaoru¹, inoue takanobu¹ (1. tokyo)

*Takamitsu Kurihara¹, Mirai Hide¹, Risako Nezu¹, Akiyo Kawamoto¹, Kazuya Takahashi¹ (1. Osaka dental University)

*Yuuhei Kanda¹ (1. Tokyo Branch)