•Graduate, Dentistry, Seoul National University
•Specialist, Oral and Maxillofacial
•Bun Dang Seoul National University Hospital 
•Professor, Oral and Maxillofacial, Bun Dang Seoul National University Hospital
•Speialist, Oral and Maxillofacial Surgery, Ewha Woman University
•Specialist, The Korea Society for Oral and Maxillofacial Surgeon
•Certified Surgeon, The Korean Society of Plastic and Reconstructive Surgeon.
•Member, The Korea Society for Oral and Maxillofacial Surgeon.
•Member, The Korean Society of Plastic and Reconstructive Surgeons.
•Member, Korean Clift Lip and Palate Association.
•Member, International Association of Oral and maxillo-facial Surgeons
•Member, Academy of Osseointegration.
•Member, Asian Congress of Oral Maxillofacial Surgery
•Member, European Academy of Osseointegration.