1. Department of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo 271-8587, Japan
2. Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1066 1081 LA Amsterdam, The Netherlands
3. Department of Oral Health Sciences KU Leuven and Department of Dentistry, University Hospitals KU Leuven, Kapucijnenvoer 7, 3000 Leuven, Belgium
4. Department of Oral Implantology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo 271-8587, Japan