In the upper jaw above the back of the teeth, it is possible to increase the height of bone available by creating new bone in the sinus. This procedure is called a sinus grafting – a skilled surgeon can deliver very predictable results in this location. Without the general success of this technique, many patients would be unable to have implants in a part of the mouth where teeth are so commonly missing.
Without a Sinus Graft, it would not be possible to place implants in this case.
The bone is too thin.
The Sinus Graft is a technique of raising the sinus floor so that there is sufficient space to augmentation additional bone that will help support dental implants.
We need a minimum of 10mm bone thickness to support an implant.