1. Department of Esthetic Dentistry, Istituto Stomatologico Italiano, University of Milan, Milan, Italy
2. Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, University of Milan, Via Della Commenda 10, Milan 20122, Italy
3. Head Department of Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, University of Milan, Via Della Commenda 10, Milan 20122, Italy
4. Head Department of Esthetic Dentistry, Istituto Stomatologico Italiano, Milan 20122, Italy