Autogenous Sticky Bone Plus Platelet-rich Fibrin Membrane Versus Xenograft With Collagen Membrane for Posterior Atrophic Mandible

Background: Teeth loss in the posterior mandible initiates residual ridge resorption, this causes difficulty in implant placement so ridge augmentation must be done either simultaneous with implant placement or in a staged approach Aim: To evaluate the effect of autogenous sticky bone with PRF membrane and xenograft with collagen membrane with simultaneous implant placement clinically on primary and secondary implant stability, and radiographically on bucco-lingual width gain, bone density and crestal bone loss