1. Department of Dental Medicine, Karolinska Institute, 141 04 Huddinge, Sweden
2. Public Dental Service, Folktandvården Region Dalarna, 791 29 Falun, Sweden
3. Centre for Clinical Research Dalarna, Uppsala University, 791 82 Falun, Sweden
4. Public Dental Services, Folktandvården Stockholm AB, 118 27 Stockholm, Sweden
5. Academic Centre for Geriatric Dentistry, 112 19 Stockholm, Sweden
6. Administrative Centre for Public Dental Service, 791 29 Falun, Sweden
7. Department of Surgical Sciences, Odontology & Maxillofacial Surgery, Uppsala University, 751 85 Uppsala, Sweden
8. Department of Health Sciences, Karlstad University, 651 88 Karlstad, Sweden
9. Health Technology Assessment—Odontology, Faculty of Odontology, Malmö University, 205 06 Malmö, Sweden