1. Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, IRCCS Cà Granda Ospedale Maggiore Policlinico Foundation, University of Milan, Milan, Italy.
2. Section of Implant Dentistry and Oral Rehabilitation, Department of Biomedical, Surgical and Dental Sciences, Dental Clinic, IRCCS Galeazzi Orthopedic Institute, University of Milan, Milan, Italy.
3. Dental School, Vita-Salute University and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy.
4. Medical Center, University of Freiburg Institute for Clinical Chemistry and Laboratory Medicine, Freiburg, Germany.