[1] Zunyi Med Univ, Affiliated Stomatol Hosp, Dept Dent Implantol, Zunyi, Guizhou, Peoples R China
[2] Zunyi Med Univ, Sch Stomatol, Key Lab Oral Dis Res, Zunyi, Guizhou, Peoples R China
[3] Univ Foggia, Dept Clin & Expt Med, Foggia, Italy
[4] Univ Roma Tor Vergata, Dept Ind Engn, Rome, Italy
[5] Univ Verona, Dept Surg Dent Pediat & Gynecol, Sect Head & Neck Surg, Piazzale LA Scuro 10, I-37124 Verona, Italy