What is Sinus Lifting? Why is Sinus Elevation Performed Before Implant Placement?

Key Takeaways
Assoc. Prof. Ahmet Ferhat Mısır
Written by DentAkademi Editorial Team
Last updated:

Sinus lifting is a surgical procedure performed for patients with insufficient bone volume in the upper jaw. This method prepares a suitable foundation for implant treatment by compensating for bone loss that occurs after tooth loss. So, how is sinus lifting performed, who is it suitable for, and what is the recovery process like? You can find all the details in this guide!

What is Sinus Lifting?

Sinus lifting, also known as sinus elevation, is a surgical procedure used when there is insufficient bone volume in the upper jaw to place implants. The maxillary sinuses, located above the area where the molars are positioned in the upper jaw, can expand over time. Additionally, the jawbone may shrink after tooth loss. When this happens, the sinus floor is elevated, and a bone graft is added to ensure safe implant placement.

A patient who has experienced tooth loss and has not received implants for a long time may suffer from bone loss in the jawbone, making implant placement impossible. In such cases, sinus lifting is performed to create sufficient bone volume.

Sinus lifting is usually part of the dental implant treatment. It is performed using two different techniques: the lateral window technique (external sinus lifting) and the osteotome technique (internal sinus lifting). The technique used depends on the amount of existing bone.

Why is Sinus Lifting Performed?

Sinus lifting (sinus elevation) is a procedure that strengthens the jawbone for implant placement in patients with insufficient bone volume.

Insufficient Bone Support

The upper jawbone is naturally thinner and less dense compared to the lower jaw. When tooth loss occurs, bone resorption accelerates. However, bone support is necessary for implant placement. Sinus lifting is performed to address this issue.

Some individuals have a naturally small jawbone structure, which does not provide enough space for an implant. Additionally, gum diseases can affect the jawbone over time, making implant placement impossible. In such cases, sinus lifting is also a preferred solution.

Importance for Long-Term Implant Success

An implant placed with insufficient bone support:

  • May fail in a short time and become loose or fall out.
  • Can cause problems with chewing function, leading to discomfort for the patient.
  • May result in infections in the jawbone, requiring implant removal.

On the other hand, a jawbone strengthened with sinus lifting ensures that the implant is more durable and healthy. To increase the longevity of an implant, your dentist will evaluate the condition of your jawbone before the procedure and may recommend sinus lifting if necessary.

How is Sinus Lifting Performed?

Sinus lifting involves elevating the sinus membrane and adding a bone graft. It is usually performed under local anesthesia, but in some cases, sedation or general anesthesia may be used.

Using X-rays and imaging techniques, the jawbone density, sinus cavities, and the space required for implant placement are assessed. Then, the appropriate bone graft is selected. A bone graft taken from the patient’s own bone is called an autogenous graft. An alloplastic graft is a synthetic or animal-derived bone material.

TechniqueWhen It Is UsedKey Advantage
Lateral Window (External Sinus Lift)Severe bone loss, insufficient bone heightAllows large volume bone grafting
Osteotome (Internal Sinus Lift)Mild to moderate bone lossLess invasive, faster healing
Simultaneous Implant PlacementAdequate initial bone stabilityShorter total treatment time
Delayed Implant PlacementAdvanced bone deficiencyHigher long-term implant success

Lifting the Sinus Membrane and Bone Grafting

During sinus lifting, the sinus membrane is carefully lifted, and a bone graft is placed in the area.

Lateral Window (Direct) Technique
A small window is opened in the jawbone to access the sinus. The sinus membrane is carefully elevated, and a bone graft is placed underneath. The opening is then covered with a special membrane, and the gum tissue is sutured.

Osteotome (Indirect) Technique
This technique is used if there is sufficient existing bone. The sinus membrane is gently elevated from the implant placement site using small taps. In some cases, the implant can be placed in the same session.

What Are the Advantages of Sinus Lifting?

Sinus lifting significantly increases the success rate of implants. It allows for longer-lasting and more durable implant use. Since the implant remains in place, there is no need for additional treatment costs. It also helps achieve results that closely resemble natural teeth.

A patient who previously had difficulty chewing hard foods and had to rely on soft foods can regain comfortable eating habits with implant-supported teeth after sinus lifting.

Post-Sinus Lifting Care

After a sinus lifting procedure, complete bone formation may take 4 to 9 months. Mild swelling and slight bleeding may occur in the first few days. Blowing the nose forcefully or sneezing can put pressure on the sinus membrane and should be avoided.

Heavy physical activities should be avoided for the first few weeks. Activities that increase body temperature can raise blood pressure and cause bleeding. A proper diet should be followed—avoid excessively hot or hard foods and consume soft, nutritious foods instead.

Patients may be prescribed antibiotics and painkillers after the procedure. In the first few days, inhaling menthol-infused steam may help alleviate nasal congestion.

Frequently Asked Questions (FAQ)

Is Sinus Lifting a Painful Procedure?

Sinus lifting is performed under local anesthesia or sedation, so no pain is felt during the procedure. However, mild pain, swelling, and sensitivity may occur after the operation.

If a large-scale bone graft is applied, a waiting period of 4 to 9 months may be necessary. If there is enough bone volume and an internal sinus lift was performed, the implant may be placed in the same session.

Sinus lifting is appropriate for patients with insufficient bone volume who wish to receive implants. However, those with uncontrolled diabetes, active infections, or blood clotting disorders may require further evaluation.

Hard foods such as nuts, chips, and chewing gum can damage the surgical area. Instead, patients should consume soups, yogurt, and mashed foods that are soft and nutritious.

Most patients can return to their daily work life within 2-3 days after the operation. However, those with physically demanding jobs should rest for at least one week.

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