*Minji Sun¹, Seojune Choi¹, Hong Seok Moon¹, Jaeyoung Kim¹ (1. Department of Prosthodontics, Yonsei University College of Dentistry)

*Ika andryas¹, Ira Tanti^2,3, Tengku Syarfina³, Guang Hong⁴, Lindawati Kusdhany² (1. Faculty of Dentistry, Universitas of Indonesia , 2. Prosthodontic Department, Faculty of Dentistry, University of Indonesia; , 3. Faculty of Cultural Science, Universitas Sumatera Utara, 4. Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University, Sendai, Japan)

*Risa Iwase¹, Masanao Inokoshi¹, Okkar Kyaw¹, Bohua Wang¹, Shunsuke Minakuchi¹ (1. Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University)

*Kaien Wakamatsu¹, Kazuya Doi¹, Reiko Kobatake¹, Yoshihumi Oki¹, Hiroshi Oue¹, Takayasu Kubo¹, Kazuhiro Tsuga¹ (1. Hiroshima University)

*Ta-chung Chen¹, Chia-shu Lin² (1. Department of Stomatology, Taipei Veterans General Hospital, Taiwan, 2. Department of Dentistry, National Yang Ming Chiao Tung University)