1. Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center–University of Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany
2. Department of Oral Biotechnology, Center for Dental Medicine, Medical Center–University of Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany
3. G.E.R.N Research Center for Tissue Replacement, Regeneration and Neogenesis, Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center–University of Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany
4. Division Materials and Production–RISE Research Institutes of Sweden Mölndal Sweden