The maxillary sinuses are cavities within the facial bones above the upper jaw. You might think they have no connection with your teeth. However…
When teeth are missing, the sinus has a tendency to expand. This diminishes bone mass and makes it more difficult to install an implant.
After a full examination and x-ray, your professional may suggest a sinus lift.
During the procedure, the professional pushes the sinus membrane back and grafts bone onto the tapered portion of the upper jaw. The implant can then be installed without danger of damaging the sinuses.