implant placed 4 months ago in 4-5mm height of bone, no sinus lifting procedure, loose, removed implant with forcep, flapped region, large sinus communication, about 6mm+ diameter, likely larger, placed fibrin membrane followed by collagen membrane soaked in prf fluid at floor of sinus, membrane oversized, borders in internal aspect of defect, packed defect with sticky bone from 50/50 allograft, additional collagen membrane and fibrin membrane over crest