1. Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples “Federico II”, 80131 Naples, Italy
2. Plastic, Reconstructive, Aesthetic Surgery Unit, Department of Public Health, Federico II University, 80138 Naples, Italy
3. Maxillofacial Surgery Operative Unit, University Hospital of Sassari, 07041 Sassari, Italy
4. Maxillofacial Surgery Unit, Santa Maria Della Misericordia Hospital, 06129 Perugia, Italy