1. Department of Periodontology, Oral Implantology, Implant and Removable Prosthodontics; Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
2. Private Practice for Prosthodontics; Unitas Hospital; Lyttelton South Africa
3. Dental School; Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
4. Department of Prosthodontics; Malmö Högskola; Malmö Sweden