Post bone graft that did not work, pt has very narrow bone morphology. Ridge split to about 4-5mm, no vertical cuts, osteotomies prepared with densah drills for crestal 1/2 and implant drills to length, tissue level implants placed, bone around all implants except for about .25mm buccal posterior but thin. grafted entire buccal region with sticky bone and collagen membrane soaked in prf fluid, some exposure of buccal with closure.