M. Andreasi Bassi, C. Andrisani, S. Lico, Z. Ormanier, and C. Arcuri, “Upper full arch rehabilitation with sinus by-pass with tilted implants via tapered-threaded expanders in low density bone: a clinical trial”, Oral Implantol, vol. 9, no. 2, pp. 61–68, Jun. 2016.