Graduated at Yonsei University( College of Dentistry)

Graduated an "Advanced General Dentistry program(AGD)" in Korea

Complete "Periodontology and Implant course" at Harvard University (US)

Complete "Advanced course of Prosthetics" at Harvard University (US)

Complete "Diagnosis and treatment course" at John Kois Center, Seattle, US.

an Outpatient clinic-Clinical Professor at Yonsei University(College of Dentistry)

A clinical advisor of Osstem implant Co.

A clinical advisor of SwissPlus implant Co.

International lecturer of Megagen implant Co.

An active and outstanding member of the Korean Academy of Oral & Maxillofacial implantology.

An active and outstanding member of the Korean Academy of Prothodontics.

A member and an executive of the Korean Academy of Geriatric Dentistry.

A lifetime active member of the Korean Academy of Orofacial pain and Oral Medicine.

Research Institute

A member of the Korean Clinical Periodontal and Orthodontic Research Institute

A executive of the Korean Association of Maxillofacial plastic surgery

Complete certificate course of the Korean Association of Maxillofacial plastic surgery

Vice president of Temporomandibular joint(TMJ) medical Research Institute