Clinical and histological evaluation of a flapless socket preservation procedure: A prospective single cohort study

Patients requiring tooth extraction and subsequent implant restoration were considered eligible for the study. Cortico-cancellous porcine bone and a resorbable collagen membrane were used to graft fresh extraction sockets, and sutures were used to stabilize the membrane. Four months after the ridge preservation procedure, all of the sites were re-entered, bone cores were harvested for histological and analysis, and implants were placed. The width of keratinized gingiva, the thickness of the buccal bone wall, and the horizontal and vertical bone dimensional variation were measured at baseline and after four months.