About Bone Grafting

What is Bone Grafting?

The placement of dental implants requires a sufficient quality and quantity of bone.  Bone grafting procedures are employed to correct  deficiencies.

Types of Bone Grafts

Autogenous Bone Grafts

Autogenous bone grafts, also known as autografts, are your own bone taken from somewhere else in the body. The bone is typically harvested from the chin, jaw, lower leg bone, hip, or the skull. Autogenous bone grafts are advantageous in that the graft material is your own live bone, meaning it contains living cellular elements that enhances bone growth.

One downside to the autograft is that it requires a procedure to harvest bone from elsewhere in the body. Depending on your condition, a second procedure may not be recommended.

Allogenic Bone

Allogenic bone, or allograft, is non-living bone harvested from a human donor.  It is processed and therefore lacks living tissue. Unlike autogenous bone, allogenic bone cannot produce new bone on it’s own. Rather, it serves as a framework, or scaffold, over which bone from the surrounding bony walls can grow to fill the defect or void.

Xenogenic Bone

Xenogenic bone is derived from non-living bone of another species, usually a cow. Like allogenic grafts, xenogenic grafts serve as a framework for bone from the surrounding area to grow and fill the void.

Both allogenic and xenogenic bone grafting have an advantage of not requiring a procedure at another site on your body.

Think You May Need Bone Grafting?

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Bone Graft Substitutes

As a substitute to using real bone many synthetic materials are available as safe and proven alternatives, including:

Demineralized Bone Matrix (DBM)/Demineralized Freeze-Dried Bone Allograft (DFDBA)

This product is processed allograft bone, containing collagen, proteins, and growth factors that are extracted from the allograft bone. It is available in the form of powder, putty, chips, or as a gel that can be injected through a syringe.

Graft Composites

Graft composites consist of other bone graft materials and growth factors to achieve the benefits of a variety of substances. Some combinations may include: collagen/ceramic composite, which closely resembles the composition of natural bone, DBM combined with bone marrow cells, which aid in the growth of new bone, or a collagen/ceramic/autograft composite.

Bone Morphogenetic Proteins

Bone morphogenetic proteins (BMPs) are proteins naturally produced in the body that promote and regulate bone formation and healing.

Synthetic materials also have the advantage of not requiring a second procedure to harvest bone, reducing risk and pain. Each bone grafting option has its own risks and benefits. Dr. Omoto or Dr. Nguyen will determine which type of bone graft material best suited to your particular needs.