After insertion of a 4.5x11 mm dummy implant at 9 mm (35 Ncm; for further bone expansion), one piece of PRF plug and 1 piece of PRF membrane are pushed into the osteotomy, followed by allograft mixed with autogenous bone for sinus lift (*) and placement of a 5x9 mm implant (Fig.3,4 with insertion torque >50 Ncm).  The implant appears to have been placed too deep.  In fact a BW shows otherwise.  There is mild bone resorption at the crest 11 months postop (Fig.7 *).  Although the sinus lift with bone graft becomes less distinct, there is more implant/bone contact mesial (arrow).

Sinus Lift with PRF Last Next

Xin Wei, DDS, PhD, MS 1st edition 04/28/2017, last revision 05/05/2019