What Is a Sinus Lift and Why Is It Done?
A sinus lift, also called a sinus augmentation, is a surgical procedure that adds bone to the upper jaw between the premolars and molars. The surgeon gently raises the membrane lining your maxillary sinus (the air-filled space above your upper teeth) and packs bone graft material into the space created underneath it.
Your upper back teeth sit just below the maxillary sinuses. When one or more of those teeth are removed, the bone that once surrounded the roots begins to shrink. Over time, the sinus floor may also drop lower. Both changes reduce the amount of bone available to anchor a dental implant.
The goal of a sinus lift is to restore enough bone height and density so that an implant can be placed securely. Without adequate bone, the implant could protrude into the sinus cavity or fail to integrate with the jaw. The American Association of Oral and Maxillofacial Surgeons notes that bone grafting procedures like the sinus lift are a routine part of preparing patients for implants in the upper jaw. [8]
Several types of graft material can be used. These include autograft (bone taken from your own body), allograft (donor human bone), xenograft (animal-derived bone), and synthetic biomaterials. A 2009 study in Clinical Oral Implants Research compared a synthetic bone substitute combined with fibrin sealant to autograft in a sinus lift model and found that both materials supported new bone formation. [7]
When Is a Sinus Lift Recommended?
A sinus lift is recommended when the bone in your upper jaw is too thin or too short to support a dental implant. Your oral surgeon or periodontist will evaluate your specific anatomy before recommending this procedure.
The most common reason for insufficient bone is tooth loss in the upper back jaw. Once a tooth is extracted, the surrounding bone no longer receives the stimulation it needs to maintain its volume. This process, called resorption, can reduce bone height significantly within the first year. Periodontal disease (gum disease) accelerates this loss by destroying the bone that supports your teeth even before extraction.
Some people simply have a naturally large maxillary sinus or a thin sinus floor. In these cases, even without a history of tooth loss or gum disease, there may not be enough bone for an implant. Age-related bone density changes can also play a role.
- Tooth loss in the upper premolar or molar area followed by bone resorption over months or years.
- Advanced periodontal disease that has already destroyed bone around the upper back teeth.
- Naturally low sinus floor or large maxillary sinus that leaves minimal bone height.
- Long-term denture use without implants, which allows continued bone loss beneath the prosthesis.
- Trauma or cyst removal that reduced bone volume in the posterior maxilla (upper jaw).
What to Expect: Before, During, and After the Procedure
A sinus lift follows a clear sequence of planning, surgery, and healing. Knowing each phase can help reduce anxiety and set realistic expectations.
Before the Procedure
Your surgeon will take a cone beam CT scan (a 3D X-ray) to measure the exact height and width of your existing bone. This scan also maps the position of your sinus membrane and identifies any sinus conditions, such as a septal deviation or chronic sinusitis, that could affect surgery. [3]
You will review your medical history, current medications, and any allergies. Blood thinners and certain supplements may need to be paused before surgery. If you have an active sinus infection, the procedure will typically be postponed until it resolves.
Your surgeon will also discuss the type of graft material best suited to your case. Options include your own bone (often harvested from the hip or jaw), processed donor bone, animal-derived bone, or synthetic materials. Each has benefits and trade-offs in terms of healing time, availability, and cost. [7]
During the Procedure
Two main surgical techniques are used for sinus lifts. The choice depends on how much bone needs to be added.
The lateral window approach is the most established technique. The surgeon makes a small opening in the side of the jawbone, gently pushes the sinus membrane upward, and fills the space with bone graft material. This method allows larger volumes of bone to be placed and is used when significant height needs to be gained. A review in Periodontology 2000 classified complications associated with this approach and found that Schneiderian membrane perforation (a tear in the sinus lining) is the most common intraoperative complication, occurring in a notable percentage of cases. [3]
The osteotome (crestal) technique is a less invasive alternative. The surgeon approaches the sinus floor through the same opening made for the implant. A small instrument pushes the bone and membrane upward. This method works best when only a few millimeters of additional height are needed and adequate initial bone exists. A systematic review in the International Journal of Implant Dentistry evaluated balloon-assisted elevation as a variation of this approach and found it to be a viable minimally invasive option, though it noted that membrane tears can still occur. [4]
Most sinus lifts are performed under local anesthesia with or without sedation. The surgery typically takes 60 to 90 minutes per side. In some cases, an implant can be placed at the same time as the sinus lift if enough existing bone is present to stabilize it.
Immediately After the Procedure
After surgery, expect mild to moderate swelling and some nasal congestion for several days. Your surgeon will provide specific instructions about medications, activity restrictions, and wound care. Most patients receive prescriptions for antibiotics, pain medication, and a nasal decongestant spray.
You will be instructed not to blow your nose for at least two weeks. Sneezing with your mouth closed or stifling a sneeze can create pressure that damages the healing graft. Any activity that increases sinus pressure, including flying and scuba diving, should be avoided during early recovery.
Recovery Timeline and Aftercare
Full healing after a sinus lift typically takes 4 to 9 months. The timeline varies based on the amount of bone grafted, the type of graft material used, and your individual biology.
Day 1 Through Week 1
Swelling peaks around day 2 or 3, then gradually improves. Applying an ice pack to the cheek in 20-minute intervals during the first 48 hours helps manage it. Mild bleeding or blood-tinged nasal discharge is normal for the first day or two.
Stick to soft, cool foods. Avoid chewing on the surgical side. Sleep with your head elevated on an extra pillow to reduce swelling. Take all prescribed medications as directed, including the full course of antibiotics.
- Normal: Mild swelling, slight nasal congestion, minor bruising on the cheek.
- Call your surgeon if: Heavy bleeding that does not stop with gentle pressure, fever above 101°F (38.3°C), or sudden sharp pain after the first few days.
Week 2 Through Month 1
Most patients return to normal daily activities within 7 to 10 days. Sutures are typically removed or dissolve within two weeks. Swelling should be minimal by this point.
Continue to avoid blowing your nose forcefully and skip any high-impact exercise for at least three to four weeks. Your surgeon will schedule a follow-up visit to check healing and may take an X-ray to confirm the graft is in place.
- Normal: Occasional mild tenderness at the surgical site, slight nasal stuffiness that gradually clears.
- Call your surgeon if: A feeling of liquid draining from your nose into your throat, persistent foul taste, or swelling that returns after initially improving.
Month 2 Through Month 9
During this phase, the graft material integrates with your natural bone in a process called osseointegration. Your surgeon monitors progress with periodic imaging. A study published in the Journal of Advanced Periodontology and Implant Dentistry used radiographic measurements to track bone density and height after open sinus lifts and found measurable new bone formation over the months following surgery. [5]
Some research suggests that adding platelet concentrates, such as platelet-rich fibrin (PRF), to the graft may support healing. A 2024 systematic review and meta-analysis in the Journal of Cranio-Maxillofacial Surgery analyzed multiple studies on platelet concentrates in sinus lifts and concluded that they may positively influence bone formation and soft tissue healing. [1] A narrative review in Dental and Medical Problems also noted potential benefits of platelet-rich plasma and PRF in oral surgical procedures, including reduced inflammation and enhanced wound healing. [2]
Once imaging confirms the graft has matured sufficiently, your surgeon or a restorative dentist will proceed with implant placement. This waiting period is critical. Placing an implant too early, before the bone has fully consolidated, raises the risk of implant failure.
How Much Does a Sinus Lift Cost?
In the United States, a sinus lift typically costs between $1,500 and $3,000 per side. Costs vary by location, provider, and case complexity. This estimate covers the surgical procedure and graft material but does not include the dental implant itself, the abutment, or the crown placed on top.
Several factors influence the final price. The type of graft material matters. Autograft requires a second surgical site, which adds time and cost. Synthetic and allograft materials avoid that step but have their own price ranges. The choice between a lateral window approach and an osteotome technique can also affect cost because of differences in surgical time and complexity.
Dental insurance coverage for sinus lifts varies widely. Some plans classify it as a medical procedure (because it involves the sinus) rather than a dental one. If your plan covers bone grafting as part of implant treatment, a portion of the cost may be reimbursed. Ask your insurance carrier for a pre-authorization or predetermination before scheduling surgery.
Many oral surgery practices offer payment plans or accept third-party financing. Request an itemized treatment estimate that separates the sinus lift, graft material, imaging, anesthesia, and future implant costs so you can plan accordingly.
Who Should Perform Your Sinus Lift?
Sinus lifts are performed by oral and maxillofacial surgeons and periodontists who have advanced surgical training beyond dental school. These specialists complete residency programs that include extensive experience with bone grafting and sinus anatomy.
A general dentist may identify the need for a sinus lift during implant planning, but the surgery itself requires specialized skills. The sinus membrane is delicate, sometimes less than 1 mm thick, and a tear during elevation is the most frequently reported complication. [3] An experienced surgeon recognizes anatomical variations, manages complications in real time, and selects the technique best matched to your specific bone deficiency.
When choosing a provider, ask about the surgeon's specific experience with sinus lifts, including how many they perform each year and what their complication management protocol involves. The AAOMS recommends that patients seek providers with documented training in these procedures. [8] You can learn more about what these specialists do on the oral-surgery page.
In many cases, the surgeon who performs the sinus lift also places the implant months later. In other arrangements, one specialist handles the graft while a prosthodontist or restorative dentist places the implant and final restoration. Either model works well when the providers communicate clearly about your treatment plan.
Find a Sinus Lift Specialist Near You
If you have been told you need a sinus lift before getting upper jaw implants, the next step is a consultation with a qualified specialist. Use our directory to find an oral surgeon or periodontist in your area who performs sinus augmentation procedures. A consultation typically includes a 3D scan, a review of your medical history, and a clear explanation of recommended techniques, expected timeline, and costs specific to your case.
Search Oral Surgeons in Your Area