1. Department of Oral Hygiene, College of Dental Medicine Kaohsiung Medical University Kaohsiung City Taiwan
2. Division of Periodontics, Department of Dentistry Kaohsiung Medical University Hospital Kaohsiung City Taiwan
3. Department of Dentistry Kaohsiung Medical University Hospital Kaohsiung City Taiwan
4. School of Dentistry, College of Dental Medicine Kaohsiung Medical University Kaohsiung City Taiwan
5. Division of Prosthodontics, Department of Dentistry Kaohsiung Medical University Hospital Kaohsiung City Taiwan
6. Department of Public Health Fu Jen Catholic University New Taipei City Taiwan
7. Oral Care for Systemic Health Support, Faculty of Dentistry, School of Oral Health Care Sciences, Graduate School Tokyo Medical and Dental University Tokyo Japan