A 4.5x11.5 mm UF implant cannot be placed at desired depth (Fig.4 (arrowheads: sinus lift)).  After osteotomy is increased with a drill for 4.5 mm implant, the implant is placed at more ideal level with insertion torque of 50 Ncm (Fig.5).  A 5.5x4(3) mm cemented abutment is placed.   Allograft and Osteogen is placed buccally. 

Bone Expanders for Sinus Lift Last Next Xin Wei, DDS, PhD, MS 1st edition 12/21/2015, last revision 03/01/2021