A sinus lift is a surgery that will add bone to your upper jaw and in the area of your premolars and your molars. A sinus lift is sometimes referred to as sinus augmentation. Bone will be added in between your jaw and your maxillary sinuses. They can be on either sides of your nose. In order to make room for the bone, the sinus membrane may be moved upward or lifted. A sinus lift is performed by a maxillofacial surgeon or a periodontist.
A sinus lift is performed when there is not enough bone in the upper jaw or the sinuses to hold dental implants. Here are some of the reasons sinus lifts are used:
People who have lost teeth in their upper jaw like the back teeth molars may not have enough bone for implants to be placed. If you look at the anatomy of the skull, you will notice that there is less bone on the upper jaw than the lower jaw
Bone loss may have happened because of periodontal gum disease
Tooth loss may have led to bone loss because when teeth are gone, bone starts to get reabsorbed back into the body. If teeth have been missing for a long time then there may not be enough bone left for implants
The maxillary sinus could be too close to the upper jaw for the placement of implants. The size and the shape of the sinuses will vary among individuals. Moreover, the sinus may become larger as you get older