Sinus Lift (Sinus Augmentation/ Sinus Elevation)
A sinus lift is performed when the molars (back teeth) of the upper jaw are missing, or need to be removed, but there is not enough bone to hold implants in place.
When the sinuses have enlarged, leaving insufficient bone structure in the upper jaw, a sinus lift creates more vertical bone height for implant placement, allowing for a solid and stable foundation.
Sinus lift surgery raises the sinus floor and adds bone and grafting material
to the upper jaw in the area of the molars and premolars (middle to back teeth).
The bone is added between the jaw and maxillary sinuses, which are located on either
of the nose.
To make room for the bone, the sinus membrane is moved upward, or ‘lifted’.
Factors causing the above bone and sinus problems include:
- Because of the anatomy of the skull, the back of the upper jaw has less bone than the lower jaw.
- When the back teeth in the upper jaw have been missing for some time, the sinus cavity becomes larger (pneumatises) as the natural bone deteriorates and resorbs (absorbs back into the body) over time.
- Bone may have been lost due to periodontal (gum) disease. To learn more about periodontal disease please click here.
- The maxillary sinuses may be too close to the upper jaw as the shape and size of sinuses varies from person to person. They can also grow larger as we age.
Sinus enlargement/ cavity expansion:
Sinus lift procedure:
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