Bone grafting

Bone grafting is a surgical procedure that replaces missing bone in order to repair a bony defect. There are several procedures as the following:

Guided bone regeneration (GBR) is a surgical procedure that utilizes grafting materials and barrier membranes to stimulate and direct the growth of new bone into defect sites.Autogenous bone and/or a biomaterial, is placed into the bony defect to maintain space and stimulate formation of new bone. The filled defect is then covered with a barrier membrane to assist in wound-healing and prevent the ingrowth of soft tissue.

1. GBR approaches are used to restore bone in cases of fenestration or dehiscence defects around an implant, to compensate for major bone deficiencies, or to avoid bone resorption after tooth extraction in deficient alveoli.

2.Tooth loss, trauma or tumor resection can lead to large bony defects in the alveolar ridge. In these situations, reconstructive measures are indicated to augment the quantity of bone.Autogenous bone block grafts harvested from the lower jaw or the iliac crest are the principal material used to reconstruct larger alveolar ridge defects.

3. A sinus lift sinus augmentation s surgery that adds bone to the area of upper molars and premolars. To make room for the bone, the sinus membrane has to be moved upward, or “lifted.” This procedures can be conducted before implant placement (twostage surgery) or simultaneously (single surgery). The posterior maxilla residual bone and sinus anatomy must be analyzed prior to planning the procedure and determining the timing of implant placement.

4. For Periodontal treatment : The use of biomaterials for guided tissue regeneration (GTR) is more effective than open flap debridement alone in resolving periodontal defects. During this procedure the defect is filled with the bone substitute Geistlich Bio-Oss Collagen® and covered with the collagen membrane Geistlich Bio-Gide® Perio.

Bone substitute materials should:

• Fill the osseous defect and reduce pocket depth
• Generate increased levels of clinical attachment
• Stimulate regeneration and preservation of the patient’s own bone and periodontal

Collagen barrier membranes should:

• Stabilize the bone graft
• Exclude epithelial down-growth
• Allow alveolar bone cells to repopulate within the defect

Treatment fee for Bone grafing depends on the method and amount of sythetic bone material.