1. Department of Oral Surgery and Implantology Goethe University Frankfurt Germany
2. Clinical Research Unit Egas Moniz University Almada Portugal
3. Private Periodontal Practice Marbella Spain
4. Department of Clinical Sciences Medical Faculty Lund University Malmö Sweden
5. Public Dental Service of Skåne Lund Sweden
6. Department of Periodontology Faculty of Odontology Malmö University Malmö Sweden
7. Department of Dental Medicine Division of Oral Diseases Karolinska Institute Stockholm Sweden
8. Department of Periodontology School of Dental Medicine University of Bern Bern Switzerland
9. Department of Oral and Maxillofacial Surgery Faculty of Dentistry Chulalongkorn University Bangkok Thailand
10. Department of Dental Medicine Karolinska Institute Stockholm Sweden
11. Department of Periodontology, Oral and Implant Surgery University of Liege Liège Belgium
12. Private practice Montpellier France
13. Division of Fixed Prosthodontics and Biomaterials University Clinics of Dental Medicine University of Geneva Geneva Switzerland
14. Department of Biomaterials Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Sweden
15. Private practice Lausanne Switzerland
16. Division of Conservative Dentistry and Periodontology University Clinic of Dentistry Medical University of Vienna Vienna Austria
17. Division of Regenerative Dentistry and Periodontology University Clinics of Dental Medicine (CUMD) University of Geneva Geneva Switzerland
18. International Research Collaborative – Oral Health and Equity School of Anatomy, Physiology and Human Biology The University of Western Australia, Crawley Perth WA Australia