Affiliation: | 1. School of Dentistry Universita' di Ferrara, Ferrara, Italy;2. Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, Zurich, Switzerland;3. Akademie für Orale Implantologie, Private Practice, Vienna, Austria;4. Aesthetic Dent, Private Practice, Szczecin, Poland;5. University of Santiago de Compostela, Santiago de Compostela, Spain;6. Division of Prosthodontics, School of Dental Medicine, University of Connecticut, Farmington, CT, USA |