1. Division of Orthodontics and Paediatric Dentistry Department of Dental Medicine Karolinska Institutet Huddinge Sweden
2. Center for Paediatric Oral Health Research Stockholm Sweden
3. Center for Oral Health Services and Research Mid‐Norway TkMidt Trondheim Norway
4. Department of Social Sciences Ersta Sköndal Bräcke University College Stockholm Sweden
5. Child and Adolescent Psychiatry Department of Clinical and Experimental Medicine Faculty of Medicine Linköping University Linköping Sweden
6. Centre for Clinical Research Region Sörmland Uppsala University Uppsala Sweden