Bone grafting
Over a period of time, the jawbone associated with missing teeth atrophies or
is reabsorbed. This often leaves a condition in which there is poor quality and
quantity of bone suitable for placement of dental implants. In the past these
situation would not allow most patients to even be candidates for placement of
dental implants.
Today, we have the ability to grow bone where needed. This not only gives Dr.
Sutor and his team the opportunity to place implants of proper length and width,
it also gives us a chance to help restore functionality and esthetic appearance.
Major Bone Grafting
Bone grafting can repair implant sites with inadequate bone structure due to
previous extractions, gum disease or injuries. The bone is either obtained
from a tissue bank or your own bone is taken from the jaw, hip or tibia (below
the knee.) Sinus bone grafts are also performed to replace bone in the
posterior upper jaw. In addition, special membranes may be utilized that
dissolve under the gum and protect the bone graft and encourage bone
regeneration. This is called guided bone regeneration or guided tissue
regeneration.
Major bone grafts are typically performed to repair defects of the jaws. These
defects may arise as a result of traumatic injuries, tumor surgery, or congenital
defects. Large defects are repaired using the patient’s own bone. This bone is
harvested from a number of different sites depending on the size of the defect.
Sinus lift procedure
The maxillary sinuses are behind your cheeks and on top of the upper teeth.
Sinuses are like empty rooms that have nothing in them. Some of the roots of
the natural upper teeth extend up into the maxillary sinuses. When these upper
teeth are removed, there is often just a thin wall of bone separating the
maxillary sinus and the mouth. Dental implants need bone to hold them in
place. When the sinus wall is very thin, it is impossible to place dental
implants in this bone.
There is a solution and it’s called a sinus graft or sinus lift graft. An implant
surgeon, like Dr. Sutor, enters the sinus from where the upper teeth used to be.
The sinus membrane is then lifted upward and donor bone is inserted into the
floor of the sinus. Keep in mind that the floor of the sinus is the roof of the
upper jaw. After several months of healing, the bone becomes part of the
patient’s jaw and dental implants can be inserted and stabilized in this new
sinus bone.
The sinus graft makes it possible for many patients to have dental implants
when years ago there was no other option other than wearing loose dentures.
If enough bone between the upper jaw ridge and the bottom of the sinus is
available to stabilize the implant well, sinus augmentations and implant
placement can sometimes be performed as a single procedure. If not enough
bone is available, the Sinus Augmentation will have to be performed first, then
the graft will have to mature for several months, depending upon the type of
graft material used. Once the graft has matured, the implants can be placed.
Ridge Expansion (Increasing bone thickness)
In severe cases, the jawbone has been reabsorbed and a bone graft is placed
to increase ridge height and/or width. This is a technique used to restore the
lost bone dimension when the jaw ridge gets too thin to place conventional
implants. In this procedure, the bony ridge of the jaw is literally expanded by
mechanical means. Bone graft material can be placed and matured for a few
months before placing the implant
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