[1] UiT The Arctic University of Norway,Department of Clinical Dentistry, Faculty of Health Sciences
[2] Northern State Medical University,Department of Prosthodontics
[3] Vilnius University,Institute of Dentistry, Faculty of Medicine
[4] The University of British Columbia,Department of Preventive and Community Dentistry, Faculty of Dentistry
[5] Oral Health Centre of Expertise in Eastern Norway,undefined