1. Private clinic for oral and maxillofacial surgery, Kniha Schlegel and colleagues Munich Germany
2. Department of Oral and Cranio‐Maxillofacial Surgery University Hospital RWTH Aachen Aachen Germany
3. Department of Experimental Molecular Imaging RWTH Aachen University Aachen Germany
4. Department of Orthodontics University of Witten/Herdecke Witten Germany