Closed Sinus Lift

In the hands of a skilled specialist, a sinus lift is one of the safest methods for bone augmentation in the posterior upper jaw! Many patients fear this type of procedure, but according to the experts at 'Sa-Nata' clinics, this concern is often unfounded. Scientific evidence, our experience, and the high success rate of this method all confirm that a closed sinus lift is safe, as long as certain criteria are met.

A sinus lift becomes necessary whenever the remaining bone height in the posterior maxilla (molars) is reduced, often due to the expansion of the maxillary sinus. It is currently believed that a bone height of 9–11 mm is required for reliable and long-term stable fixation of implants. However, in many cases, the remaining bone height is insufficient, either due to anatomical factors or previous tooth and bone loss, so it needs to be surgically restored. The floor of the maxillary sinus is raised, Which is why this procedure is also referred to as "Sinus Floor Elevation".

The closed sinus lift, also known as the "minimally invasive" sinus lift, involves elevating the sinus floor through the opening drilled for the implant, using specialised tools. This method is only appropriate when there is sufficient remaining bone height. It allows for safely raising the sinus floor by approximately 3 mm.

The procedure involves expanding or deepening the bone structure between the tooth roots and the maxillary sinus, improving the site for implant placement. The typical steps are as follows:

• Access to the sinus is gained from the cheek side;
• The intact sinus membrane is lifted — the minimum distance between the sinus floor and the alveolar ridge should be no less than 5 mm;
• The cavity is then filled with your own bone or synthetic material, which stimulates new bone growth.

Depending on the bone condition, the implant may be placed either during the same session or at a later stage.

Healing time ranges from 4 to 8 months, depending on the type of bone grafting material used. Overall, a closed sinus lift can increase vertical bone height by 3–4 mm.

This procedure promotes bone regeneration in a highly sensitive area of the jaw. Moreover, a closed sinus lift creates optimal conditions for implant placement and reduces the risk of damage to the sinus cavity.

How much does a sinus floor lift cost? The price depends on several factors, such as the type of sinus lift (open or closed), the complexity of the procedure, and the bone graft material used. Although the costs may be considerable, the benefits in terms of improved comfort and quality of life are significant.

Thanks to the closed sinus lift procedure, implants can be placed to restore the physiological function of chewing and enhance the aesthetics of your smile. That’s why undergoing a sinus floor elevation is often a worthwhile decision. The positive feedback from patients at 'Sa-Nata' clinics confirms the successful outcomes of this surgical technique and shows that more and more patients are choosing it with confidence.