1. aResearch Scientist, Department of Orthodontics, University of Ulm, Ulm, Germany
2. Corresponding author: Mr Ansgar Hohmann, Universitätsklinikum Ulm, Department of Orthodontics, ZMK 4, Albert-Einstein-Allee 11, 89081 Ulm, Baden-Württemberg, Germany (ansgar.hohmann@uni-ulm.de)
3. bResearch Scientist, Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany
4. cAssociate Professor, Department of Orthodontics, Paulista University, São Paulo, Brazil
5. dProfessor and Department Head, Department of Orthodontics, Paulista University, São Paulo, Brazil
6. eProfessor and Department Head, Department of Orthodontics, University of Ulm, Ulm, Germany