A sinus lift, also called sinus augmentation, is a bone grafting procedure that builds up the upper jaw in the area of the back molars and premolars. It creates enough bone height to hold a dental implant. The sinus membrane is lifted upward and bone graft material fills the space below it.
The upper jaw has a specific problem. There’s an air-filled cavity above your back teeth called the maxillary sinus. When those teeth are gone long enough, that cavity expands downward into the space where an implant needs to go. That process is called pneumatization, and it’s why so many patients need a sinus lift before an implant can be placed.
A sinus lift solves it. The procedure adds bone to that area to create the height and density the implant needs. For patients who’ve been told they can’t get implants because they don’t have enough bone, this is often the step that changes the answer.
Key Takeaways
- A sinus lift adds bone to the upper jaw to create enough height for a dental implant
- The sinus membrane is lifted upward and bone graft material fills the space below it
- Bone typically takes 4 to 9 months to integrate before implants can be placed
- The full implant process, from sinus lift to final restoration, can often be handled in one office
Why the Upper Jaw Loses Bone
Every tooth has a root that presses against the surrounding jawbone with every bite. That constant pressure keeps the bone dense. Pull the tooth, and the pressure stops. Within weeks the bone starts to resorb. A year later, a significant amount of it can be gone. The longer the tooth has been missing, the more bone loss has typically occurred.
The maxillary sinuses add another layer to the problem. These air-filled spaces sit just above the upper back teeth. In some people they naturally sit close to the jaw. In others, they expand downward after tooth loss. Either way, when the gap between the sinus floor and the jaw ridge gets too small, there isn’t enough room to place an implant.
Providers typically recommend a sinus lift when less than 4 to 6 millimeters of bone height remain in the upper back jaw. A 3D imaging scan gives an exact measurement before any decisions are made.
Two Techniques, One Goal
There are two main approaches to a sinus lift. Which one is used depends on how much bone needs to be added.
| Technique | Best for | How it works | Same-day implant? |
|---|---|---|---|
| Lateral window | Cases needing more bone | Small opening made in the wall of the sinus. Membrane lifted. Bone graft packed in below it. Site stitched closed. Implant placed after healing. | Sometimes |
| Crestal approach | Cases needing less bone | Accessed from below through the future implant site. Sinus floor gently tapped upward. Less invasive with a shorter recovery. | More often |
Both procedures use local anesthetic. Sedation is available for patients who prefer it. Detailed imaging done before the procedure maps out the exact anatomy, so the placement is precise before anything begins.
Does a Sinus Lift Hurt?
Most patients feel little to no discomfort during a sinus lift because the area is fully numbed. After the procedure, mild swelling and light bleeding from the nose or mouth are normal for a few days. Over-the-counter pain relievers usually manage any soreness. Most people feel like themselves again within one to two weeks.
Sedation is also available if you’d prefer it. It’s a good option for patients who feel anxious about dental procedures. The lateral technique takes about one to two hours.
After the procedure, here is what most providers recommend during recovery:
- Avoid blowing your nose hard or sneezing with force for one to two weeks. That kind of pressure can shift the graft material.
- Take any prescribed antibiotics or medications as directed.
- Use an over-the-counter pain reliever for any soreness.
- Skip strenuous exercise for about a week.
- Attend your follow-up visit 7 to 10 days after the procedure.
What Are the Risks?
The most common risk is a small tear in the sinus membrane during the procedure. This is usually repaired right away. Other risks include infection and, in rare cases, the graft not fusing with existing bone. Working with an experienced provider significantly reduces the chance of complications.
Like any surgical procedure, a sinus lift carries some risk. Most complications are manageable when caught early.
- Sinus membrane tear. The most common complication. An experienced provider can usually stitch or patch it during the same procedure. More complex tears may mean pausing and rescheduling.
- Infection. Antibiotics are typically prescribed after the procedure to prevent it.
- Sinus congestion or inflammation. Can develop during healing and is usually managed with a decongestant or nasal spray.
- Graft failure (rare). If the graft doesn’t bond with existing bone, the procedure may need to be repeated before implants can be placed.
Careful imaging before the procedure and following your post-op instructions are the two most effective ways to reduce risk.
Healing, Then Implant Placement
The weeks after your sinus lift are about protecting the graft while new bone forms. The graft material acts as a scaffold. Your body gradually replaces it with real bone over the following months.
Most patients are cleared for implant placement 4 to 9 months after the procedure. The timeline depends on how much bone was added and how well it integrates. Your provider will track progress with imaging before scheduling the next step.
The longer timeline is the trade-off that makes the whole thing work. Once the bone is there, the implant has a solid foundation that can last for decades. If you’ve been told you need a sinus lift before getting implants, schedule a consultation with Dr. Kitts at our Edmonds office. He’ll review your imaging, walk through your treatment plan, and answer your questions before anything is scheduled. We handle every step of the implant process from start to finish.
