Affiliation: | 1. Assistant, Division of Dental Materials, Faculty of Dentistry, Wroclaw Medical University, Wroclaw, Poland;2. Professor, Department of Prosthetic Dentistry, Faculty of Medicine, Dresden University of Technology, Dresden, Germany;3. Lecturer, Department of Prosthetic Dentistry, Faculty of Medicine, Dresden University of Technology, Dresden, Germany;4. Professor and Head, Department of Prosthetic Dentistry, Faculty of Dentistry, Wroclaw Medical University, Wroclaw, Poland |