Why Do I Need a Sinus Lift?
|Patients who have lost teeth in the upper premolar or molar areas of the jaw often require a sinus lift, or sinus augmentation, in order to have dental implants placed.
As a result of bone loss, the sinuses can expand to occupy the empty space where the bone used to be. With insufficient bone to securely place a dental implant, a sinus lift is necessary to move the sinus away from the roots of the teeth or to create additional bone in the area.
The Sinus Lift Procedure
The maxillary sinuses are behind your cheeks and above the upper back teeth. The maxillary sinus are air-filled cavities. Many of the roots of the upper back teeth extend in to the maxillary sinuses. When these upper teeth are removed, the amount of bone separating the oral cavity and the sinus may be greatly diminished. As dental implants require anchorage in this bone, sinus lifting may be required to improve the amount of bone for dental implant anchorage.
The technique entails entering the sinus from where the upper teeth were previously positioned. The sinus membrane is gently elevated and bone grafting is inserted into the desired area. Over the course of the next 4-6 months, this bone grafting becomes part of patient's own bone and dental implants can be inserted and stabilized in this new bone. There are many instances whereby sinus lifting and dental implant placement may be performed at the same time. Dr. Allard will review these instances in his consultation with you at your visit at the Glendale, AZ office.