Affiliation: | 1. Resident, Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;2. Professor, Department of Health, Functional Capacity and Welfare/Department of Environmental Health, National Institute for Health and Welfare, Helsinki/Kuopio, Finland; Department of Oral Public Health, Institute of Dentistry, University of Eastern Finland, Kuopio, Finland; and Department of Oral and Maxillofacial Surgery, Kuopio University Hospital, Kuopio, Finland;3. Radiologist, HUS Medical Imaging Center, Department of Radiology, University of Helsinki University Hospital, Helsinki, Finland;4. Professor, Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;6. Consultant, Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;5. Professor, Department of Oral and Maxillofacial Diseases, University of Turku and Turku University Hospital, Turku, Finland |