Grecchi , F., M. Di Girolamo, F. Cura, V. Candotto, and F. Carinci. 2017. “A NEW SYSTEM OF IMPLANT ABUTMENT CONNECTION: HOW TO IMPROVE A TWO PIECE IMPLANT SYSTEM SEALING”. Oral & Implantology 10 (3):234-40. https://www.oimplantology.org/oimp/article/view/210.