Sinus lift is an oral surgery procedure that raises the sinus floor and helps to develop bone which can be used for placing a dental implant. Losing molars and premolars in the upper jaw, the bone in this area gradually decomposes, or it gets resorbered. In time, the sinus cavity spreads and the quality of the bone left is not good for implant placement. In these cases, oral cavity and sinus cavity are separated with only a thin bone membrane, sometimes 1mm thick and the shortest standard implants are 7mm long. By sinus lift procedure a surgeon increases the amount of bone in the upper jaw (8-15mm) that is required for dental implants. Bone augmentation is done in situations when, for various reasons, there has been a reduction in the height or width of the bone at the place where we plan to place the dental implant.
Sinus lift and bone augmentation procedures
Before planning or doing a sinus lift or bone augmentation surgery it is necessary that a patient make a 3D image of the jaw, which a surgeon uses to analize the condition of the bone and estimates if these procedures are needed. The procedure itself is done in a local anesthesia and therefore it’s completely painless. A surgeon makes an incision and then lifts the tissue, so the bone can be exposed. After that, the surgeon cuts a small circle in the bone through which they can gently push on the membrane of the sinuses. As the boney piece is lifted into the sinus cavity the hole is filled with the previously determined bone graft. After this is done, the procedure is complete and the surgeon will close the incision with sutures.
Bone augmentation is done in a similar way – a small incision is made in the place where there is a need for a bone graft, a granulated or padded shaped artificial bone is placed on a desired place. After that the granules are covered with a membrane and sutured. After sinus lift or bone augmentation, usually you can place dental implants right away. Also, the placement can be postponed for 4-6 months. The complexity of the case and surgeons assesment determines if it will be done in the sam day, or postponed.
Sinus-lift – recovery
After the intervention, swelling and mild pain can be expected. It can be eased by using cold compresses in a 5 minute sessions, with half an hour brakes. Patient will get proper therapy, antibiotics to prevent infections and will be advised to reduce physical activity.