1. Resident, Department of Prosthodontics, College of Dentistry, Chosun University, Gwangju, Republic of Korea
2. Associate Professor, Department of Prosthodontics, College of Dentistry, Chosun University, Gwangju, Republic of Korea
3. Professor, Department of Prosthodontics, College of Dentistry, Chosun University, Gwangju, Republic of Korea