Within the side tooth range of the upper jaw, the bone borders above the root points on the maxillary sinus. In this region a long lasting toothlessness or a badly sitting prosthesis can contribute to a regression of the bone, and so frequently the height of the bone is inadequate for an implantation.
The bone offer is also limited by nature and depends on the structure of the maxillary sinus (nasal cavity/sine) which varies in size between patients. Teeth within the side tooth range frequently project their roots into the maxillary sinus, and so are only covered with mucous membrane lining and / or a very thin bone lamella.
The aim of this intervention is the correction of the height of the disposable bone offer. Only in this way can the implants be placed deeply enough in the bone to become permanent.
In the case of an inadequate bone offer, we prepare a bone-window on the lateral wall of the maxillary sinus, and, through this window we very carefully lift the internal mucous membrane (sinuslift). This intervention happens in the side tooth range through the mouth. Then we place bone substitute and/or own bone from the patient. After the healing the new bone offer ensures an adequate stability for the implants.
If there is a sufficient height of local bone available, then the implants can be placed in at the same time with the sinuslifting operation.
In case of a significantly reduced bone offer, it is important to ensure a stable site onto which the implantation can be made. To this end, the first operation is restricted to the bone grating with sinuslifting only. After a sufficient healing time the implants can be set into the new implant site during a second operation (approx. 6 month).