To evaluate the efficacy of 10 - to 16-mm-long implants inserted in maxillary sinuses augmented according to a lateral approach technique with 50 % particulated autogenous bone harvested from the oral cavity and 50 % Bio-Oss , versus 8-mm-long hydroxyapatite-coated implants placed in crestally augmented sinuses with autogenous bone according to the Cosci technique .
