Crestal Lift with Densah Burs--My thought!
There is a buzz on this site with the Densah Bur and I would like to present a case using my protocol . In my opinion the implant with this design will tent the membrane and no need for grafting .
In this case, no PRF--no graft ---no perf of the membrane as tested with valsalva.
Implant placed a 5.5x85. Megagen in a >5mm crestal bone height.
1525 to 4mm in clockwise
1828 to 5mm in counterclockwise
2535 to 5mm in counterclockwise
2838 to 5mm in counterclockwise
3535 to 5mm in counterclockwise
3848 to 6mm in counterclockwise which decorticated the sinus floor
4555 to 6mm in counterclockwise in counterclockwise
All of the drills were used with a vertical stop.
I will post a 6 month follow CBCT