Bone Grafting Around Teeth
In certain cases of bone loss around teeth, where there are bony walls to hold a bone graft; a bone graft can be added to regain a significant part of the bone lost around a tooth or teeth. The regained bone will improve the long term outlook for the tooth or teeth and help keep the tooth or teeth in the mouth. Keeping teeth in one’s mouth helps to improve the overall function of the teeth and contributes to one’s smile and overall appearance.
Missing Teeth And Bone Grafting
When you have missing teeth, over time you will experience additional bone loss in the areas of the missing teeth. Without the function of a tooth or an implant in an area of bone, the bone becomes slowly lost due to a lack of function in that area of bone. This bone loss is especially worrisome if you are seeking dental implants, as the bone loss often can result in poor quality of bone and a lack of bone quantity suitable for placement of dental implants.
Bone grafting at the time of tooth extraction can prevent and minimize this bone loss. Bone grafting can repair future implant sites with inadequate bone after previous extractions, periodontal disease or injuries. Bone grafting gives the opportunity to place implants of optimum length and width as well as giving the opportunity to restore functionality and aesthetic appearance in many cases. A procedure called Guided Bone Regeneration involves the use of special dissolvable membranes under the gum to optimize bone graft healing and regeneration.
Ridge Expansion
In severe cases, when the bony ridge has been reabsorbed, a bone graft can be placed to increase the ridge height and / or width. The bone graft material that is placed must mature for at least several months before an implant can be placed in the expanded ridge.
Sinus Lift Procedure
The ( upper jaw ) maxillary sinuses are spaces lined with membranes that are located behind your cheeks and above the roots of the upper back teeth. The roots of the upper back teeth often extend up near to the floor (bottom part) of the maxillary sinuses. When the upper back teeth are removed, there is often just a thin amount of bone separating the floor of the sinus and the mouth. When there is insufficient amount of bone between the sinus floor and the mouth, it is not possible to place dental implants in this bone because dental implants need a certain amount of bone to stabilize them for initial healing.
A solution to this problem is called a sinus lift graft. Sinus bone grafts are performed to replace bone in the back area of the upper jaw. The sinus is carefully entered from the area where the upper back teeth used to be. The sinus membrane is lifted upward and donor bone is placed under the lifted membrane into the floor of the sinus. After several months of healing, the donor bone becomes part of the jaw and dental implants can be inserted and stabilized in this new sinus bone.
If enough bone exists between the floor of the sinus and the mouth to initially stabilize the placement of an implant but there is not enough bone for an optimum implant length to be used, the sinus lift bone graft and implant placement can be performed at the same time in a single appointment. If there is not enough bone to initially stabilize an implant, the sinus lift bone graft will have to be done first; then the bone graft must mature for at least several months, depending on the type of graft used. Once the bone graft has matured, implants can be placed in the area of the graft.