1. Doctor of Dental Clinic, Department of Implant-Prosthodontics, Yedam Dental Hospital, Mokpo, Republic of Korea
2. Student, Department of Dental Engineering, Catholic University of Pusan, Busan, Republic of Korea
3. Student Researcher, Department of Bioengineering, College of Engineering and Applied Science, Lehigh University, Bethlehem, PA, USA
4. Professor, Department of Prosthodontics, College of Dentistry, Chosun University, Gwangju, Republic of Korea