A sinus lift is a surgery that adds bone to your upper jaw in your Molars & Premolars area. It's sometimes called a sinus augmentation. Maxillary sinus floor augmentation (also termed sinus lift, sinus graft, sinus augmentation, or sinus procedure) is a surgical procedure that aims to increase the amount of bone in the posterior maxilla (upper jaw bone), in the area of premolar and molar teeth, by sacrificing some of the volumes of the maxillary sinus.
The alveolar process begins to remodel when a natural tooth is lost, whether through dental decay, periodontal disease, or dental trauma. The edentulous (toothless) area is termed a ridge, which usually loses both height and width over time. Furthermore, the level of the maxillary sinus floor gradually becomes lower. Overall, this leads to a loss of the volume of bone, which is available for the implantation of dental implants. The bone is added between the jaw and the maxillary sinuses on either side of the nose. To make room for the bone, the sinus membrane has to be moved upward or "lifted." A sinus lift usually is done by a specialist. This could be either an oral and Maxillofacial Surgeon or a Periodontist.
Dental Sinus Lift
Sinus lift has become common in the last 15 years as more people are getting dental implants to replace missing teeth. The amount of bone used will vary case by case. Granules of bone graft material will be packed into the space where the sinus wall is or packed in the area where there is a lack of bone to support the implant. The goal of the sinus lift is to graft extra bone into the maxillary sinus so more bone is available to support a dental implant.
What It's Used For
A sinus lift is done when there is not enough bone height 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 — 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 periodontal (gum) disease.
- Tooth loss may have led to a loss of bone as well. Once teeth are gone, the bone begins to be resorbed (absorbed back into the body). If teeth have been missing for a long time, there often is insufficient bone to place implants.
- The maxillary sinus may be too close to the upper jaw for implants to be placed. The shape and 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.
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