1. Department of Oral‐ and Maxillofacial Surgery University Medical Center Mainz Mainz Germany
2. Department of Oral‐ and Maxillofacial Surgery Federal Armed Forces Hospital Koblenz Germany
3. Department of Oral‐ and Maxillofacial Surgery University Medical Center Rostock Rostock Germany
4. Private Practice and Department of Prosthodontics and Materials Science University Medical Center Rostock Rostock Germany
5. Department of Gynecology Johannes Gutenberg University Medical Center Mainz Germany