1. Department of Biomedical and Neuromotor Sciences DIBINEM, University of Bologna, 40125 Bologna, Italy
2. Department of Dentistry, IRCCS, San Raffaele Hospital, Dental School, Vita Salute University, 20158 Milan, Italy
3. Department of Restorative Dentistry and Endodontics, Lebanese University, Beirut 1533, Lebanon
4. Department of Surgical Sciences, Dental School Lingotto, University of Turin, 10126 Turin, Italy
5. Dental Academy, University of Portsmouth, William Beatty Building, Hampshire Terrace, Portsmouth PO1 2QG, UK