Affiliation: | I. Joss‐Vassalli, Department of Orthodontics and Dentofacial Orthopedics, Medical School, University of Bern, Bern, Switzerland C. Grebenstein, Department of Orthodontics and Oral Biology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands N. Topouzelis, Department of Orthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece A. Sculean, Department of Periodontology, Medical School, University of Bern, Bern, Switzerland C. Katsaros, Department of Orthodontics and Oral Biology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands, and Department of Orthodontics and Dentofacial Orthopedics, Medical School, University of Bern, Bern, Switzerland |