- Adjunct Professor of Dental college, Yonsei univ.
- Dental College, Yonsei Univ. (DDS)
- Graduate School, Yonsei Univ. (MSD,PhD)
- Intern & Resident at the Dept. of Periodontology, Dental Hosp., Yonsei Medical Center
- Traning at the Gothenburg Astra implant course
- Full Member at the Korean Academy of Periodontology(KAP)
- Full Member at the Korean Academy of Prosthodontics(KAP)
- Full Member at the Korean Academy of Oral & Maxillofacial Implantology(KAOMI)
- Full Member at the Yonsei Implant Association