1. Privat Practice; Zwickau Germany
2. Department of Oral and Maxillofacial Surgery (Director: Prof. Dr. Dr. Dr. h.c. Friedrich Wilhelm Neukam); University Hospital Erlangen; Friedrich Alexander Universität Erlangen-Nürnberg; Erlangen Germany
3. Faculty of Medicine Carl Gustav Carus; Institute for Medical Informatics and Biometry (IMB); Technische Universität Dresden; Dresden Germany
4. Straumann GmbH; Freiburg Germany