*Kosei Ito¹, Akinori Tasaka¹, Takesi Hirabayashi², Shinji Takemoto³, Shuichiro Yamashita¹ (1. Department of Removable Partial Prosthodontics, Tokyo Dental College, 2. Dental Laboratory, Tokyo Dental College Suidobashi Hospital, 3. Department of Biomedical Engineering, Iwate Medical University)

*Adityakrisna Yoshi Putra Wigianto¹, Yuichi Ishida¹, Tetsuo Ichikawa¹ (1. Department of Prosthodontics and Oral Rehabilitation, Graduate School of Oral Sciences, Tokushima University)

*Liang Lin Seow¹, Umer Daood¹, Preena Sidhu¹, Nafij Jamayet¹, Igor Blum², Christopher Lynch⁴, Nairn HF Wilson³ (1. School of Dentistry, IMU University, 2. Dental Faculty, King's College London, United Kingdom, 3. General College of Dentistry, United Kingdom, 4. Cork University Dental School)