1. Department of Prosthetic Dentistry, Carl Gustav Carus Faculty of Medicine; Technische Universität Dresden; Dresden Germany
2. Institute for Medical Informatics and Biometry (IMB), Carl Gustav Carus Faculty of Medicine; Technische Universität Dresden; Dresden Germany
3. Department of Oral and Maxillofacial Surgery, Facial Plastic Surgery; Military Hospital Ulm and Academic Hospital University Ulm; Ulm Germany
4. Department of Experimental Dentistry, Faculty of Dentistry; Wroclaw Medical University; Wroclaw Poland