1. Faculty of Medicine and Dentistry; Department of Clinical Dentistry - Periodontics; University of Bergen; Bergen Norway
2. Faculty of Medicine and Dentistry; Department of Clinical Dentistry - Center for Clinical Dental Research; University of Bergen; Bergen Norway
3. Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm Sweden
4. Laboratory for Applied Periodontal & Craniofacial Regeneration; Georgia Regents University; Augusta GA, USA