Bone Grafting for Implants
Do I have enough bone for dental implants?
After tooth extraction, if the walls of the socket are healthy and very thick, they will usually fill naturally with bone in a couple of months. However, when the walls of your socket are very thin (such as in your upper and lower front teeth) and or infected, this type of healing will not be as predictable. In these situations, bone grafting is often performed at the time of tooth extraction to help your body fill in the empty socket with your own bone to its best. This step will provide the width and volume of bone you will need for implant placement several months later.
1. Inadequate Bone
2. Graft Material Placed
3. Implants Placed
There may be inadequate bone for implant placement if your tooth was removed many years ago and your bony ridge is extremely narrow. In this case, a bone graft can be placed next to the thin bone and allowed to heal for up to six months. After the graft has fused to your pre-existing bone, the ridge will be re-entered and the implant placed. Bone grafting is usually a relatively comfortable office procedure. Many different bone-grafting materials are available, including your own bone, human tissue (allograft), or other species (xenograft).
1. Inadequate Bone
2. Graft Material and Implant Placed
You may also need bone grafting (sinus lift) if the sinus cavities in your upper jaw are extend into the tooth-bearing areas (as the above pictures show). This often occurs when teeth in the back of a person’s upper jaw have been removed many years before, and the amount of bone available for implant placement is limited. A “sinus grafting procedure” is then required. Most often, it is performed in the office with local anesthesia and perhaps sedation. During this procedure, the membrane that lines the sinus will be located and elevated. Bone will then be added to restore the bone height and ensure that dental implants of an adequate length can be placed. This procedure often can be performed at the time of implant placement, depending on the amount of residual bone in that site.
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