*Hiroyuki Ishiyama1,2, Akira Nishiyama2,3, Kenji Fueki1
(1. Department of Masticatory Function and Health Science, Tokyo Medical and Dental University (TMDU), 2. Temporomandibular Disorders Clinic, Tokyo Medical and Dental University (TMDU) Hospital, 3. Department of General Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU))