Affiliation: | 1. Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium;2. Dental Medicine, Faculty of Medicine and Pharmacy, Free University of Brussels (VUB), Brussels, Belgium;3. Department of Community Dentistry and Oral Public Health, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium;4. Department of Prosthodontics, Faculty of Odontology, Malm? University, Malm?, Sweden |