Major & Minor Bone Grafting
Over a period of time, the jawbone associated with missing teeth atrophies or is resorbed. This often results in a condition in which there is decreased bone volume and poor bone quality. If this is not corrected, most patients are not candidates for the placement of dental implants.
Today, we have the ability to grow bone where needed. This not only gives us the opportunity to place implants of proper length and width, it also gives us a chance to restore functionality and aesthetic appearance.
Major Bone Grafting
Bone grafting can repair implant sites with inadequate bone structure due to previous extractions, gum disease or injuries. The bone is either obtained from a tissue bank or your own bone can be used. The bone can be taken from many sites but is most commonly harvested from the jaw. A sinus bone graft is a procedure performed to replace bone in the posterior upper jaw. Another type of bone graft involves the use of a special membrane. This membrane is placed under the gums to 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 large 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 sites depending on the size of the defect. 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.