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Graft and dental implant procedures. (a) Sinus lift area prepared with Bovine collagen membrane (Gen-derm®, Mogi Mirim-SP, Brazil) placed, (b) Cavity being filled with the biomaterial (Hydroxyapatite; Osteogen®), (c) Dental implant being inserted immediately in the sinus lift area partially filled with augmentation material, (d) Dental implants in place
