Major & Minor Bone Grafting
Missing teeth over a period of time can cause your jaw bone to atrophy, or resorb. This often results in poor quality and quantity of bone suitable for the placement of dental implants as well as long term shifting of remaining teeth and changes to facial structure. Most patients, in these situations, are not candidates for dental implants.
Fortunately, today we have the ability to grow bone where it is needed. This not only gives us the opportunity to place implants of proper length and width, but it also gives us a chance to restore functionality and aesthetic appearance.
Major Bone Grafting
Bone grafting can repair dental implant sites with inadequate bone structure due to previous extractions, gum disease or injuries. There are a variety of ways that Dr. Block can perform the bone grafting. The bone is either obtained from a tissue bank (human cadaver), from animals such as cows (bovine xenograft), or your own bone is taken from your jaw. It is rare to need to use your hip because of the success rate with bone graft substitutes. If you have atrophic bone in the molar region of your upper jaw, bone height can be reconstructed by elevating your sinus membrane and placing bone grafts. In addition, special membranes may be utilized that dissolve under the gum and protect the bone graft and encourage bone regeneration. This is called guided bone regeneration or guided tissue regeneration.
Major bone grafts are typically performed to repair defects of the jaws. These defects may arise as a result of traumatic injuries, tumor surgery, or congenital defects. Large defects are repaired using the patient’s own bone. This bone is harvested from a number of different areas depending on the size needed. The skull (cranium), hip (iliac crest), and lateral knee (tibia), are common donor sites. These procedures are routinely performed in an operating room and require a hospital stay.