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Sinus Lift

A sinus lift can make the implant placement procedure possible, thus allowing patients with bone loss in there upper jaw to enjoy the benefits from a long term solution to their missing or failing teeth using dental implants.

A sinus lift is surgery that adds new bone to your upper jaw in the area of your molars and premolars. The bone is added between your narrow jaw and the large maxillary sinuses. To make room for the bone, the sinus membrane is gently seperated and moved upward, or “lifted.” Bone is then added, in most cases the dental implant can be placed at the same time resulting an increase in bone volume that anchors the implant.
Sinus lifts have become common during the last 20 years as more people are choosing dental implants to replace missing teeth.

The bone used in a sinus lift may come from your own body (autogenous bone), from a cadaver (allogeneic bone), from cow bone (xenograft) or Laboratory(synthetic).

If your own bone will be used it will be taken from other areas of your mouth, typically the back of your lower jaw.

You will need X-rays taken before your sinus lift so the dentist can study the anatomy of your jaw and sinus. You also may need a special type of computed tomography (CBCT) scan. This scan will allow the dentist to accurately measure the height and width of your existing bone and to evaluate the health of your sinus.

If you have seasonal allergies, you should schedule the procedure when they are not active.

INTERNAL Sinus Lift
Also known as the Summers technique or Floor Elevation technique.

Access to the sinus cavity is through the empty tooth socket, where a tooth has been lost or where it has been recently extracted.
The bone is drilled out partially and then the base of the hole is tapped upwards towards the sinus creating the depth required to insert an implant. Bone is syringed into the space.
This procedure is usually followed by an implant placement.

LATERAL Sinus Lift
An incision made to the side gum tissue where your back teeth used to be. The tissue is raised, exposing the bone. A small, oval window is opened in the bone. The membrane lining the sinus on the other side of the window separates your sinus from your jaw. This membrane is gently moved up and away from your jaw.

Granules of bone-graft material are then packed into the space where the sinus was. The amount of bone used will vary, but usually several millimeters of bone is added above the jaw.

Once the bone is in place, the tissue is closed with stitches. Your implants will be placed four to nine months later. This allows time for the grafted material form new bone. The amount of time depends on the amount of bone needed.

Sometimes dentists use proteins called growth factors to help the new bone harden faster. Platelet-rich plasma, which contains the growth factors, is taken from your blood before surgery and mixed with the graft that is placed into your sinus.

After the procedure, you may have some swelling of the area. You may bleed from your mouth or nose.
Do not blow your nose or sneeze forcefully. Either one could cause the bone-graft material to move, and loosen the stitches.

Your dentist may advise you use saline sprays to keep the inner lining of your nose wet and prescribe medicine to prevent congestion and inflammation. You may also be given a prescription for pain medicine, an antibiotic and an antimicrobial mouthwash to help prevent infection. Most patients have only a little discomfort after a sinus-lift procedure.

You will see the dentist after 7 to 14 days when an evaluation of the surgical site will be undertaken and have sutures removed if they will not dissolve on their own. You might be asked to return a few more times to make sure the area is healing properly.

After a sinus lift, you need to wait several months for the bony material to harden and integrate with your jaw. Depending on the grafting material used, implants may be placed in four to nine months.

Some patients have thin sinus membranes or bumpy sinus floors making the release of the membrane more likely to cause a delay in treatment. The main risk of a sinus lift is that the sinus membrane could tear or develop a hole. If the membrane is torn during the procedure, the dentist will either suture the tear or place a membrane over it. If the repair is not successful, your dentist may stop the procedure and give the hole time to heal.

Your dentist can redo the sinus lift once the membrane has healed. This usually takes a few months. A healed membrane tends to be thicker and stronger, which means a second attempt at a sinus lift is likely to be successful. However, other factors also affect success.

Infection is a risk of any surgical procedure. However, this rarely occurs after sinus lifts.

On rare occasions, the existing bone does not integrate with the bony graft material, and the grafted area does not develop a blood supply. If this happens, any implants placed in this area will fail because there is no live bone for them to attach to. If this happens, you can have the sinus lift procedure repeated.

After a sinus lift, contact your dentist if:

* Any swelling or pain gets worse over time. (It should decrease after the first two days or so.)
* The bleeding does not stop after one to two days.
* Bleeding is bright red and continuous. (Normal bleeding after this procedure oozes slowly and is dark red with possible clots.)
* You think the bony material may have been dislodged after sneezing or blowing your nose.
* Pain does not decrease over time.
* You develop a fever.

Preparation

The bone used in a sinus lift may come from your own body (autogenous bone), from a cadaver (allogeneic bone), from cow bone (xenograft) or Laboratory(synthetic).

If your own bone will be used it will be taken from other areas of your mouth, typically the back of your lower jaw.

You will need X-rays taken before your sinus lift so the dentist can study the anatomy of your jaw and sinus. You also may need a special type of computed tomography (CBCT) scan. This scan will allow the dentist to accurately measure the height and width of your existing bone and to evaluate the health of your sinus.

If you have seasonal allergies, you should schedule the procedure when they are not active.

How is this done?

INTERNAL Sinus Lift
Also known as the Summers technique or Floor Elevation technique.

Access to the sinus cavity is through the empty tooth socket, where a tooth has been lost or where it has been recently extracted.
The bone is drilled out partially and then the base of the hole is tapped upwards towards the sinus creating the depth required to insert an implant. Bone is syringed into the space.
This procedure is usually followed by an implant placement.

LATERAL Sinus Lift
An incision made to the side gum tissue where your back teeth used to be. The tissue is raised, exposing the bone. A small, oval window is opened in the bone. The membrane lining the sinus on the other side of the window separates your sinus from your jaw. This membrane is gently moved up and away from your jaw.

Granules of bone-graft material are then packed into the space where the sinus was. The amount of bone used will vary, but usually several millimeters of bone is added above the jaw.

Once the bone is in place, the tissue is closed with stitches. Your implants will be placed four to nine months later. This allows time for the grafted material form new bone. The amount of time depends on the amount of bone needed.

Sometimes dentists use proteins called growth factors to help the new bone harden faster. Platelet-rich plasma, which contains the growth factors, is taken from your blood before surgery and mixed with the graft that is placed into your sinus.

Follow-up

After the procedure, you may have some swelling of the area. You may bleed from your mouth or nose.
Do not blow your nose or sneeze forcefully. Either one could cause the bone-graft material to move, and loosen the stitches.

Your dentist may advise you use saline sprays to keep the inner lining of your nose wet and prescribe medicine to prevent congestion and inflammation. You may also be given a prescription for pain medicine, an antibiotic and an antimicrobial mouthwash to help prevent infection. Most patients have only a little discomfort after a sinus-lift procedure.

You will see the dentist after 7 to 14 days when an evaluation of the surgical site will be undertaken and have sutures removed if they will not dissolve on their own. You might be asked to return a few more times to make sure the area is healing properly.

After a sinus lift, you need to wait several months for the bony material to harden and integrate with your jaw. Depending on the grafting material used, implants may be placed in four to nine months.

What are the Risks?

Some patients have thin sinus membranes or bumpy sinus floors making the release of the membrane more likely to cause a delay in treatment. The main risk of a sinus lift is that the sinus membrane could tear or develop a hole. If the membrane is torn during the procedure, the dentist will either suture the tear or place a membrane over it. If the repair is not successful, your dentist may stop the procedure and give the hole time to heal.

Your dentist can redo the sinus lift once the membrane has healed. This usually takes a few months. A healed membrane tends to be thicker and stronger, which means a second attempt at a sinus lift is likely to be successful. However, other factors also affect success.

Infection is a risk of any surgical procedure. However, this rarely occurs after sinus lifts.

On rare occasions, the existing bone does not integrate with the bony graft material, and the grafted area does not develop a blood supply. If this happens, any implants placed in this area will fail because there is no live bone for them to attach to. If this happens, you can have the sinus lift procedure repeated.

Please call us if you notice the following

After a sinus lift, contact your dentist if:

* Any swelling or pain gets worse over time. (It should decrease after the first two days or so.)
* The bleeding does not stop after one to two days.
* Bleeding is bright red and continuous. (Normal bleeding after this procedure oozes slowly and is dark red with possible clots.)
* You think the bony material may have been dislodged after sneezing or blowing your nose.
* Pain does not decrease over time.
* You develop a fever.

Still have questions?


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