Affiliation: | a Lecturer, Department of Prosthetic Dentistry, University of Genoa, Genoa, Italy b Professor, Department of Prosthetic Dentistry, University of Genoa, Genoa, Italy c Researcher, Department of Prosthetic Dentistry, University of Genoa, Genoa, Italy d Postgraduate student, Department of Prosthetic Dentistry, University of Genoa, Genoa, Italy e Director, ITERA, Castelletto Stura, Italy f Adjunct Faculty, Department of Prosthodontics, Nova Southeastern University, College of Dental Medicine; Director, Dental Research, Biomet 3i, Palm Beach Gardens, Fla g Professor and Head, Department of Prosthetic Dentistry, University of Genoa, Genoa, Italy |