1. Department of Biomedical Technologies, School of Dentistry University of Siena Siena Italy
2. Department of Oral and Maxillofacial, Diseases University of Helsinki Helsinki Finland
3. Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit Amsterdam Amsterdam The Netherlands
4. Department of Oral and Maxillofacial Surgery Texas A&M School of Dentistry Dallas Texas USA
5. School of Dentistry University of Padova Padova Italy
6. Sleep Research Group, Charles Perkins Centre, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
7. Department of Respiratory & Sleep Medicine Royal North Shore Hospital Sydney New South Wales Australia
8. Bauru School of Dentistry University of Sao Paulo Bauru Brazil
9. Department of Oral Health Science, Orofacial Pain Center, College of Dentistry University of Kentucky Lexington Kentucky USA
10. Newcastle University's School of Dental Sciences Newcastle UK
11. Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
12. Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine University of Berne Berne Switzerland
13. Clinic of Masticatory Disorders, Center of Dental Medicine University of Zurich Zurich Switzerland
14. Department of Orofacial Pain and Jaw Function, Faculty of Odontology Malmö University Malmö Sweden
15. Finnish Institute of Occupational Health Helsinki Finland
16. Department of Oral Physiology Osaka University Graduate School of Dentistry Suita Japan
17. Department of Diagnostic Sciences Louisiana State University School of Dentistry New Orleans Louisiana USA
18. Faculty of Dental Medicine Universite de Montréal Quebec Montréal Canada
19. School of Dentistry University of Salvador/AOA Buenos Aires Argentina
20. Department for Prosthodontics, Gerodontology and Craniomandibular Disorders, Charité Centre for Oral Sciences Charité ‐ University Medicine of Berlin Berlin Germany
21. Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health Aarhus University Aarhus Denmark