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A study used e-PTFE membranes to cover surgically constructed average size bone defects in the mandibular angles of rats. Consequently, the e-PTFE membrane acted as a barrier to soft tissue and sped up bone healing, which took place between 3–6 weeks while no healing occurred in the non-membrane control group during a 22 week period. [16]
Secondary bone grafting can also be used to augment the alar base of the nose to achieve symmetry with the non-cleft side, thereby enhancing facial appearance. [25] Late secondary bone grafting: Bone grafting has a lower success rate when performed after canine has erupted as compared to before the eruption.
Socket preservation or alveolar ridge preservation is a procedure to reduce bone loss after tooth extraction. [1] [2] After tooth extraction, the jaw bone has a natural tendency to become narrow, and lose its original shape because the bone quickly resorbs, resulting in 30–60% loss in bone volume in the first six months. [3]
The first membranes developed were nonresorbable and required a second surgery for membrane removal some weeks later. The need for a second surgical procedure hindered the utilization of the original barrier membranes, which led to the development of resorbable membranes; [1] research indicates no statistically significant difference in surgical success between the two types.
Others, including Broome and Taggert [4] and Donn [5] also described the use of SECT grafts for increasing the zone of keratinized tissue. Of the various ways of preparing the graft recipient site, Edel described using two vertical incisions, mesial and distal to the teeth at which the zone of keratinized tissue was intended to be widened. [1]
Fixed to jawbone. Maintains alveolar bone, which would otherwise undergo resorption. Usually a long-term lifespan. Expensive and complex, requiring specialist. May involve other procedures such as bone grafting. Relatively contra-indicated in tobacco smokers. Denture: Often a simple, quick, and relatively cheap treatment compared to bridge and ...
Tobacco smoking impairs phagocytic and chemotactic activities of leukocytes [17] and impedes wound healing, [18] specifically by affecting gingival blood flow. [19] [20] Cigarette smokers are more likely to experience destruction of the alveolar bone and periodontal ligament and are at a higher risk of developing periodontal disease. [21] [22]
The mouth wounds recover in 7–10 days with precautions for fluid only diet for 5 days, and not to increase pressure in the nose or sinuses for 2–3 weeks. Evidence that the bone graft is forming will be seen on x-ray at about 8 weeks. Movement of teeth into the graft can begin at 3 months once bone graft consolidation is seen on xray. [4]