fractured root, atraumatic exo, labial bone loss at apex of buccal, about 2mm diameter. soft bone, prepared osteotomy short of sinus floor to about 2.2mm, remainder with densah drills to about 3.5mm, entry into sinus chamber, no evidence of membrane perforation, packed sticky bone from 90/10 mix of mineralized cortical/xenograft, good pushback of bone, placed collagen membrane soaked in prf fluid against buccal defect from internal aspect of socket, packed more bone, implant placed, same bone used to fill the rest of the socket .