Fig.11: A 6.9x10 mm bone level implant is able to fully engage to the palatal bone. More bone graft will be needed for sinus lift, particularly when the implant is placed more apically.  There will be sufficient clearance for the immediate provisional.

Even Sinus Lift

Xin Wei, DDS, PhD, MS 1st edition 01/11/2015, last revision 01/16/2015