- Seoul St. Mary's Hospital Dental Intern
- Seoul St. Mary's Hospital Dental Resident
- Sinchon Da Dental Clinic, Chief of Periodontics
- Clinical assistant professor of dentistry at Soonchunhyang University Seoul Hospital
- Clinical Associate Professor, International St. Mary's Hospital, Catholic Kwandong University
- Recognized by the Korean Society of Periodontology
- Regular member of the Korean Society of Periodontology
