1. Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
2. Private Dental Practice
3. Department of Periodontics and Endodontics, Division of Dentistry, Okayama University Hospital
4. Department of Comprehensive Dentistry, The Centre for Graduate Medical Education (Dental Division), Okayama University Hospital
5. Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital