In dentistry is it often used with dental implant treatment. It is not really bone grafting as your own bone is not being moved from one site to another.
The principles of GBR
- If a space can be ma dedirectly next to the bone surface in the absence of pressure, newbone will growon the surface of existing bone and in to the space created.
- To create the spacea membrane is required, which keeps out the body’s cells that would prevent the formation of new bone. The membrane resorbs away over 3 months.
- As soon as the membrane gets wet, it becomes floppy and sinks down on to the bonesurface. A ‘scaffold’ material is therefore required to keep the membrane where it needs to be and in addition allows the growth of new bone through it.
- The membrane usually used by Paul is made of pig ligament and the scaffold material is usually the mineral component of cow bone.
- The augmented bone will have a greater volume than before the procedure but you will have the same amount of gum to cover a larger region. To do this the underside of the gum needs to be released to make it more flexible. It can then stretch without causing tension and pressure, stitches are then very carefully placed to create a good seal.