When dental implants are needed to replace upper back teeth (premolars and molars), there is sometimes a lack of available bone to allow implant placement. This is because the back of the upper jaw often has very limited bone around teeth compared to other areas of the mouth. The maxillary sinus (an air space below the upper jaw bone) occupies a lot of the space, and if teeth are missing, over time it expands into the upper jaw, making the jaw bone thinner.
If you have had gum disease or bone resorption (loss) from missing teeth in the upper jaw, then the expansion of the maxillary sinus can leave next to no bone availability for a successful dental implant tooth replacement.
This problem is now very predictably and successfully overcome with a surgical procedure called a “sinus elevation” or “sinus lift“, which is performed routinely by our Dental Implant dentists in Perth.