Affiliation: | 1. Department of Oral and Maxillofacial Surgery, University Hospital of Freiburg, , Freiburg, Germany;2. Oral Imaging Center, Faculty of Medicine, Katholieke Universiteit Leuven, , Leuven, Belgium;3. Department of Periodontology and Implant Dentistry, New York University, , New York, NY, USA;4. Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, , Bern, Switzerland;5. Department of Periodontology, School of Dental Medicine, University of Bern, , Bern, Switzerland;6. Robert K. Schenk Laboratory of Oral Histology, School of Dental Medicine, University of Bern, , Bern, Switzerland |