1 Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Viale del Policlinico, 155-00161 Rome, Italy. Electronic address: massimo.ralli@uniroma1.it.
2 Humanitas Clinical and Research Center, Via Alessandro Manzoni 56, 20089 Rozzano (MI), Italy. Electronic address: armando.devirgilio@gmail.com.
3 Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico, 155-00161 Rome, Italy. Electronic address: marco.artico@uniroma1.it.
4 Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico, 155-00161 Rome, Italy. Electronic address: lucia.longo@uniroma1.it.
5 Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Viale del Policlinico, 155-00161 Rome, Italy. Electronic address: marco.devincentiis@uniroma1.it.
6 Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico, 155-00161 Rome, Italy. Electronic address: antonio.greco@uniroma1.it.