If you are planning on replacing an extracted tooth with an implant, it is strongly recommended to place a bone graft and membrane in the extraction site the same day as the extraction. Without a graft, the ridge of bone can collapse into the site that previously housed the root, creating an area that might not be able to support an implant. A bone graft helps stabilize and maintain the ridge of bone, which leads to more predictable implant results.
After extraction, sterilized and treated cadaver bone particles are placed, and a collagen membrane and sutures are stitched on top to hold the bone particles in place and prevent the gum tissue from extending into the extraction site. This cadaver bone serves as a scaffold while your body metabolizes and replaces it completely with your own bone over the course of four months.