A sinus lift or graft is a surgical procedure that adds bone to the area around your molars and premolars in your upper jaw. It’s sometimes called sinus augmentation. The bone is added to each side of your nose between your jaw and the maxillary sinuses.
The sinus membrane must be moved upwards or “lifted” to make room for the bone. A sinus lift is performed when there is insufficient bone height in the upper jaw or the sinuses are too close to the jaw to place dental implants.
Procedure
- Your surgeon removes the gum tissue surrounding your back teeth. The tissue is raised and the bone is exposed revealing a small, oval window. On the other side of the window, the membrane lining the sinus separates your sinus from your jaw. This membrane is pushed gently up and away from your jaw.
- Bone-graft granules are then packed into the sinus space. The amount of bone used will vary but is measured in millimeters.
The tissue is closed with stitches once the bone is in place. Four to nine months later, your implants will be placed. This allows time for your bone to mesh with the grafted material. The amount of time it takes depends on how much bone is needed.
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