Affiliation: | 1. Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden Division of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria Drs. Domic and Bertl contributed equally to this study.;2. Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden;3. Section of Oral Radiology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark;4. Department of Oral and Maxillofacial Radiology, Faculty of Odontology, University of Malmö, Malmö, Sweden |