1. Department of Postgraduate Education, Master of Oral Implantology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe University, Frankfurt, Germany.
2. Private Practice for Oral Surgery and Implant Dentistry, Ludwigshafen, Germany.
3. HygCen Germany GmbH, Laboratory, Schwerin, Germany.
4. Sirius Ceramics Laboratory, Frankfurt, Germany.
5. Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Germany.
6. Department of Prosthodontics and Head of Department of Postgraduate Education, Master of Oral Implantology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe University, Frankfurt, Germany.