1. Department of Odontology, Faculty of Health Sciences University of Copenhagen Copenhagen Denmark
2. Oral Surgery, Department of Odontology, Faculty of Health Sciences, Section for Oral Biology and Immunopathology University of Copenhagen Copenhagen Denmark
3. Department of Oral & Maxillofacial Surgery, Centre of Head & Orthopedics Copenhagen University Hospital Copenhagen Denmark
4. Section of Oral Rehabilitation, Department of Odontology, Faculty of Health Sciences University of Copenhagen Copenhagen Denmark