Surgery - Sinus Lifts

A sinus lift is a form of bone grafting that adds bone to your upper jaw in the area of your molars and premolars. It is done when there is not enough bone, or the sinuses are too close to the jaw for a dental implant to be placed. The bone is added between your jaw and the maxillary sinuses, which are on either side of your nose. The sinus membrane has to be moved upward or lifted to make room for the bone.

There are several reasons for this:
Many people who have lost teeth in their upper jaw — particularly the back teeth, or molars — do not have enough bone for
implants to be placed. Because of the anatomy of the skull, the back of the upper jaw has less bone than the lower jaw.
Bone may have been lost because of gum disease
Once teeth are gone, bone begins to be resorbed (absorbed back into the body). If teeth have been missing for a long time, there
often is not enough bone left to place implants.
The maxillary sinus may be too close to the upper jaw for implants to be placed. The shape and the size of this sinus varies among
individuals and can get larger as you age

How is a Sinus life done?
An incision will be made near the gum tissue near your premolars and molars. Then the tissue is raise, to expose the bone. A tiny opening is then cut in the bone, revealing the sinus membrane. It is then moved upwards and away from the jaw. Then several millimeters of bone are packed into the space where the sinus was.
The bone from the tiny opening is then placed back and the tissue is stitched closed. The surgical site is then left to heal for four to nine months, allowing time for the grafted material to mesh with your bone.


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