-Graduated from Yonsei University Dental College -Internship at the Dental College Hospital, Yonsei University -Residency at the Department of Conservative Dentistry, Dental College Hospital, Yonsei University -Fellowship at Department of Conservative Dentistry, Seoul St. Mary's Hospital, The Catholic University of Korea -Assistant Professor at Department of Conservative Dentistry, Seoul St. Mary's Hospital, The Catholic University of Korea -Associate Professor at Department of Conservative Dentistry, Seoul St. Mary's Hospital, The Catholic University of Korea -Professor at Department of Conservative Dentistry, Seoul St. Mary's Hospital, The Catholic University of Korea