Affiliation: | 1. Clinic of Fixed Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, Zurich, Switzerland;2. Institute of Oral Biology, Section for Oral Microbiology and General Immunology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland;3. Clinic of Preventive Dentistry, Periodontology and Cariology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland |