Affiliation: | 1. Department of Oral and Maxillofacial Surgery, University Hospital of Freiburg, Freiburg, Germany;2. Fraunhofer Institute for Mechanics of Materials IWM, Polymer Tribology &3. Biomedical Materials – Group, Freiburg, Germany;4. Stryker Leibinger GmbH &5. Co. KG, Freiburg, Germany |