1979~1980 Intern in Dental Hospital, Seoul National
University Hospital
1980~1982 Resident in Department of Oral and
Maxillofacial Surgery, Seoul National University Hospital
1985~1987 Full-time Lecture in Department of Oral and
Maxillofacial Surgery,College of Medicine, Chungnam
National University
1987~1989 Assistant Professor in Department of Oral and
Maxillofacial Surgery, College of Medicine, Chungnam
National University
1985~1989 Chariman in Department of Oral and Maxillofacial
Surgery, College of Medicine, Chungnam National University,
Hospital
1990~1991 Visting Professor in Department of Oral and
Maxillofacial Surgery, College of Dentisty, Zurich
University, Switerland
1996 Visting Professor in Department of Oral Biology,
College of Dentisty, state University of New York at
Buffalo, USA
2000~2001 Visting Professor in Department of Oral Biology
College of Dentisty, King's College, UK
1989~1999 Full-time Lecture, Assistant Professor, Assistant
Professor in Department of Oral and Maxillofacial Surgery,
College of Dentisty, Seoul National University
1996~2004 Director of Maxillofacial Deformity Clinic in
Seoul National University Dental Hospital
2000~ Professor in Department of Oral and Maxillofacial
Surgery, College of Dentisty, Seoul National University
2002~ President in Korean Association of Reserach and
Charity for Craniofacial Deformity
2004~ Chairman in Department of Oral and Maxillofacial
Surgery, College of Dentisty, Seoul National University
Dental Hospital
2004~ Vice President in Korean Association of Tissue
Engineering Regeneration Medicine

1987 Korean Dental Association: “A New Young
Scientist Award”
1997 13th International Congress of Oral and
Maxillofacial Surgery, Kyoto, Japan.“Prize of the
Scientific Presentation"
1999 Barons Who's Who : “The Asia 500 leaders for
the new centry”
2001 Korean Association of Oral and Maxillofacial
Surgeons: “Prize of the Poster
Presentation”
2001 Korean Association of Maxillofacial Plastic and
Reconstructive Surgeons: “Prize of the Poster
Presentation”
2002 2000 Congress of International Cleft lip and
Palate Foundation Zurich, Switzerland. “Prize of Free
Paper Scientific Presentation”
2003 Barons Who’s Who, “Living Legend”, Korean
Tissue Engineering and Regenerative Society: "Prize of
free paper Scientific Presentation"
2004 International Biographic Center: Cambridge,
UK, “Life Achievement 100”
2004 American Biographic Institute: USA,
“Outstanding Professor Award”
2004 2004 Congress of International Cleft lip and
Palate Foundation. Halifax, Canada. "1st place Award of
Abstract Presentation"
Research Area
Crano-maxillofacial surgery, Reconstruction of Crano-
maxillofacial Deformity, Bioengineering of Jaw, Tooth and
Nerve.