Chemical, microbilogial and rheologial studies on saliva to
establish the
fundamentals to establishe none invasive, economic and
convenient
early diagnose humen diseases using saliva.

1969~2004 Professor(lecteurer,Assistant,Associarte,Full
Professor) College of Dentistry, Seoul National University
1976~1984 President, Korean Academy of Oral Medicine
1988~1993 Councillor, Natonal Council of Educatioin,
Ministry of Education
1989~1990 President, Asian Academy of Craniomandibular
Disorders
1991~1993 Dean, College of Dentistry, Seoul National
University
1992~ Fellow, International Associatioin of Dental
Research
2000~ President, Korean Society of Salivary Research
2004~ Professor Emeritus, Seoul National University

1990 Order of Cultural Merits in Life science
by The Special City of Seoul
1993 Grand Prix(contributioin)
by Asian Academy of Craniomandibular Disorders
2001 Grand Prix(research)
by Korean dental Associatioin
2002 Award for distinguuished papers
by Korean Association of Science and Technology