1. National Oral Disability Centre; The Institute for Postgraduate Dental Education; Jönköping Sweden
2. CHILD Research Group; Swedish Institute for Disability Research; School of Health and Welfare; Jönköping University; Jönköping Sweden
3. CHU Clermont-Ferrand; Service d'Odontologie; Clermont-Ferrand France
4. Université Clermont Auvergne; CROC Centre de Recherche en Odontologie Clinique; Clermont-Ferrand France
5. Facultad de Odontología; Universidad Nacional de Córdoba; Cordoba Argentina
6. Department of Special Education; Oslo University; Oslo Norway
7. Departement of Pediatric Dentistry; Faculty of Odontology; Malmö University; Malmö Sweden