Bone Regeneration surgery attempts to regenerate the previously lost gum and bone tissue. We use bone substitutes and/or bone stimulating proteins to fill the bone defects; the grafts may be covered with bio-absorbable membranes. Bone grafting following tooth loss can preserve the socket and jaw bone and minimize gum and bone collapse. With better healing and less shrinkage of natural gum and bone, your dentist can create a more esthetic tooth replacement for either an implant crown or a fixed bridge.