Dentistry Adjunct Professor of Periodontology Adjunct Associate Professor at Ewha Womans University Graduate School of Clinical Dentistry Served as First President of Apgujeong Smile Building Steering Committee Served as Public Information Director of Gangnam-gu Dental Association Served as Director of Korea Oral and Maxillofacial Implant Society Presently Chairman of Korea CQ 12th Class Presently served as director of Gongsan Academy, Seoul Gwanhun Rotary Club Membership Committee Chairperson Full member of