1. Department of Periodontics, School of Dentistry, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
2. Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
3. Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
4. School of Dentistry, The University of Missouri-Kansas City, Kansas City, MO, USA
5. Department of Medical Biotechnologies, Università degli Studi di Siena, Siena, Italy
6. Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
7. Department of Orthodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
8. Department of Developmental Dentistry, School of Dentistry, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
9. Complete Dental Arts, P.A, Newnan, GA, USA
10. Department of Clinical and Community Sciences, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, USA