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What is sinus lift surgery?

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What is sinus lift surgery?
A sinus lift is a surgery that adds bone to your upper jaw in the area of your molars and premolars. Sinus lift is also called sinus augmentation. The bone is added between your jaw and the maxillary sinuses, which are on either side of your nose.

To make room for the bone, the sinus membrane has to be moved upward. A sinus lift usually is done by a specialist. This could be either an oral and maxillofacial surgeon or a periodontist.

A sinus lift is done when there is not enough bone in the upper jaw, or the sinuses are too close to the jaw, for dental implants to be placed. There are several reasons for this:

Many people who have lost teeth in their upper jaw 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 periodontal disease.
Tooth loss may have led to a loss of bone as well. 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 vary from person to person. The sinus also can get larger as you age.

Sinus lifts have become common during the last 15 years as more people get dental implants to replace missing teeth.
The bone used in a sinus lift may come from your own body (autogenous bone) or from a cadaver (allogeneic bone).
If your own bone will be used in the sinus lift, it will be taken from other areas of your mouth or body. In some cases, the surgeon removes bone from your hip or tibia.

You may need X-rays taken before your sinus lift so the dentist can study the anatomy of your jaw and sinus. You also may need a special type of CT. This scan will allow the dentist to accurately measure the height and width of your existing bone and to evaluate the health of your sinus.








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