*Fares Raafat Elsayed Mohamed Moustafa¹, Kenji Fueki¹, Akira Nishiyama², Hiroyuki Ishiyama¹ (1. Department of Masticatory Function and Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 2. Department of General Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)

*Ricca Chairunnisa¹ (1. Doctor of Dental Medicine Program, Faculty of Dentistry, Universitas Sumatera Utara)

*Munkhjargal Gantumur¹ (1. Department of Prosthodontics, School of Dentistry, Mongolian National University of Medical Sciences, 2. Department of Restorative Dentistry Universiti Malaya)