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What is a bone graft?

In some cases, bone grafts or bone regeneration are needed to prepare the jawbone to be able to support the implant.

Bone augmentation can be an important procedure during dental implant treatment, especially when there is insufficient bone to support the implant.

This technique involves grafting bone material to the deficient area, stimulating new bone growth and enhancing bone volume and density. By augmenting the bone, this procedure creates a more robust foundation for the implant, ensuring its stability and successful integration within the jawbone.

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Bone augmentation techniques vary, utilizing different materials


Xenografts use bone from an animal donor, commonly bovine origin acting as the main source. The material acts as a scaffold which is eventually replaced by your own bone tissue over time.

Autogenous Grafts

Autogenous grafts use bone from another part of your body, for example from another part of your jaw.


Allografts are grafts that use donated human bone taken from a “bone bank”.


Alloplasts are synthetic bone grafts that are chemically similar to human bone. For example, calcium phosphate. These grafts provide a framework for new natural bone formation.

After the procedure, you will need to wait between 3-9 months before having implants placed, so that healing can take place. The exact waiting time will depend on how much bone has been grafted.

How does it work?

Guided bone regeneration is a special technique that helps to give bone cells an advantage over other types of cell to multiply and fill an area where bone loss has occurred. Usually, cells from the gum surface and the connective tissues are much faster at filling the gaps compared with the bone cells. This means bone cells may not have an opportunity to regenerate.

In guided bone regeneration procedure, a barrier membrane covers the area of bone loss and blocks access to it to the other cell types, giving the bone cells a chance to fill in the defect. The barrier may disintegrate and eventually disappear (resorbable) or may need to be removed in a later procedure (non-resorbable).

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