Sinus lift: 3 years follow up comparing autogenous bone block versus autogenous particulated grafts.

Background/purpose: The aim of this prospective randomized controlled clinical trial was to compare vertical bone gain and bone resorption after sinus graft procedures performed either with particulate or with autogenous bone block.

Material And Methods: Forty-one patients underwent sinus graft procedures with autogenous bone. They were randomly assigned to one group.