Orthodontic Specialist Chonnam National University Hospital Department of Orthodontics Intern, completed residency,

Now Sungoun Dental Orthodontic Clinic CEODirector

Korean Association of Orthodontics Councilor, Korean Association of Orthodontics Accredited physician, full member Loss Orthodontic Research Society Instructor, R&D Director International Loss Orthodontic Research Association Full member USA Full member of the Orthodontic Society Fellow of the World Orthodontic Society