Bone Graft

Bone Grafting

Bone recedes when tooth loss occurs. Just as soil erodes when trees and plants are removed.

Guided Tissue or

Bone Regeneration

For minor bone irregularities guided tissue regeneration may be used. This involves the use of a membrane as a barrier to isolate the area where bone is required. The barrier prevents other cells from growing in and enables bone cells to form bone. This technique may be used with an implant, a bone graft or by itself. The membrane can be porcine in origi

Bone Augmentation

When teeth are lost, the underlying bone (alveolar bone) is likely to resorb (shrink) both vertically and horizontally. The alveolar bone supports the teeth and when it no longer receives stimulation from forces on the teeth, it tends to shrink away. Areas with teeth that have been missing for a long time, and/or have been prosthetically replaced with removable dentures, will often have so much bone resorption that there is not enough remaining to be able to place implants of adequate size.

 

Similarly, teeth that have been lost due to an advanced periodontal disease (gum disease), will often have experienced so much bone loss that there is not enough bone remaining for implants to be placed. Bone defects from root canal infection, fractured teeth, trauma or difficult tooth removal may also create a situation where bone needs to be augmented (replaced by means of grafting) for implant placement to be accomplished

Bone Grafting Materials

There are many types of bone graft material currently available and research promises more to come. Some surgeons may elect to use a patient’s own bone, harvesting it from nearby areas, typically sections of the lower jaw.

 

Other commonly used types of bone include bovine (cow bone) that has been processed to remove protein and acts as a stimulus for the body to replace it with new bone. Human Cadaver (allograft) bone can also be used, as well as several forms of synthetics. We do not use human type unless requested.

 

Various bone graft materials are available to replace and regenerate bone matrix lost by tooth extraction, cystectomy or bone atrophy following loss of teeth or inflammatory processes. Of all grafting options, autologous bone is considered the “gold standard “ because of its biological activity due to vital cells and growth factors.

 

Yet, the autologous bone from intra-oral donor sites is of restricted quantities and availability, and the bone tissue obtained from the iliac crest is described to be subject to fast resorption.

Moreover, the harvesting of autologous bone requires a second surgical site associated with an additional bone defect and potential donor site morbidity. Thus, application of processed allogenic bone tissue appears a sufficient alternative. Bio-oss® is a sterile, high-safety allograft product, derived from bovine source. We also use Ethoss a synthetic bone substitute for replacing lost bone. This is a highly effective bone substitute which kills bacteria and improves gum tissue quality and volume. It is completely resorbed in a period of three months but leaves native (Your own) bone in its place.

 

The trabecular structure of cancellous bone allows optimal graft revascularization, rapid formation of new bone tissue and complete bone remodelling.



Indications:

Implantology, Periodontology and Oral and CMF Surgery. It either comes in granules or blocks.


Granules

- Localised augmentation of the ridge for future implant placement

- Reconstruction of the ridge for prosthetic therapy

- Filling of osseous defects, such as extraction sockets

- Elevation of maxillary sinus floor

- Repair of intrabony periodontal defects

 

Blocks

- A predictable and highly effective alternative to traditional block grafting

- Ridge augmentation

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