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Teeth are held in place by surrounding gums, bone, and other tissues. But periodontal disease can cause the bone to break down. Certain techniques called regenerative procedures can be used to stimulate growth of new bone. This growth increases the height of the bone around the tooth, giving the tooth more support. Getting back even half the lost bone height extends the life of the tooth. One type of regenerative procedure is called a bone replacement graft.
A graft helps your body replace lost bone. The graft consists of your own bone, synthetic material, or bone from a tissue bank. A gel containing growth factors may also be used to stimulate tissues to grow. This is how a graft is done:
Placing the graft. First, a gum flap is created. Growth factors may then be applied to the root. Graft material is packed into the area where bone was lost. This material provides a platform for new bone to grow.
Closing up. The gum is closed and sewn together. The growth factors stimulate tissue to grow.
After the area heals. Stitches dissolve or are removed. Though the gum has healed, it takes a year or more for new bone growth to fill the space.