1. Professor, Department of Orofacial Pain and Oral Medicine, Wonkwang University Daejeon Dental Hospital, Daejeon, Republic of Korea
2. Wonkwang Dental Research Institute, Wonkwang University, Iksan, Republic of Korea
3. Professor, Department of Prosthodontics, Wonkwang University Daejeon Dental Hospital, Daejeon, Republic of Korea