This movie shows how we perform a 'sinus lift' procedure. When the sinus has expanded and destroyed the bone in the alveolar ridge (posterior upper jaw) we want to bring it back to its original position so we can place implants in this area. We peel back the gums, make a window in the side of the sinus, lift the membrane to a new position, fill the area with different bone substitutes, close it and wait for the bone to mature before placing the implant.