· 1981-1987  Bachelor, College of Dentistry, Pusan National University
· 1988-1990  MSD. Department of Dentistry, Graduate School of Pusan National University
· 1990-1993  Ph.D. Department of Dentistry, Graduate School of Pusan National University (Diagnostic Science Major) 

Professional qualifications
· National Dental board, KOREA
· National Specialty Certificate (Oral & Maxillofacial Radiology), KOREA

Activities in academic society
· 1994-1996  Full-time instructor, College of Dentistry, Pusan National University
· 1996-2000  Assistant professor, College of Dentistry, Pusan National University
· 2000-2005  Associate professor, College of Dentistry, Pusan National University
· 2006-Present  Professor, school of Dentistry, Pusan National University
· 2004-2005  Visiting professor, University of Washington, USA
· 2017-Present  Dean, School of dentistry, Pusan National University

Hospital Appointments
· 1994-Present  Full-time specialty practitioner, Oral & Maxillofacial Radiology, Pusan national university dental hospital.
· 2004-2010, 2015-2016  Chair, Department of Oral & Maxillofacial Radiology, Pusan national university dental hospital.   
· 2010-2014  Director of general affairs, Pusan national university dental hospital.  

Research Interests
· Diagnostic Imaging of maxillofacial region
· Digital radiographic imaging 

Publications