In the event that there is insufficient bone for dental implant placement, a separate bone grafting procedure will be required. This surgery is most commonly performed using human or bovine-derived bone in conjunction with porcine-derived collagen membrane. These grafting materials have a substantiated track record with no reports of disease transmission to a patient anywhere in the world. There have been no reports of allergic reactions, and these materials are used routinely in periodontal surgical procedures. A healing period of six to nine months will be required, depending on the extent of the bone graft, before proceeding with dental implant surgery.