[1] Univ Messina, Dept Biomed & Dent Sci Morphol & Funct Images, I-98100 Me, Italy
[2] Univ Campania Luigi Vanvitelli, Multidisciplinary Dept Med Surg & Dent Specialtie, I-80100 Naples, Italy
[3] Dott Francesco Siracusa Rizzi Srl, Clin Anal Lab, Via Nazl Archi, I-89121 Rc, Italy
[4] North Hlth Ctr Asp 5, Unit Microbiol & Virol, I-89100 Reggio Di Calabria, Italy
[5] Univ Med Tirana, Fac Dent Med, Dept Conservat, Tirana, Albania
[6] Loma Linda Univ, Dept Maxillofacial Surg, Loma Linda, CA 92354 USA
[7] IM Sechenov First Moscow State Med Univ, Inst Dent, Moscow 119146, Russia
[8] Univ Naples Federico II, Dept Neurosci Reprod & Odontostomatol Sci, I-80131 Naples, Italy