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Sinus Lift Surgery
The maxillary sinuses are bony cavities located above our upper jaw. When teeth are missing, the maxillary sinus tends to swell and expand, which reduces bone mass and increases the difficulty of placing a dental implant there. After a thorough examination and maxillofacial X-ray, the dentist may suggest a sinus lift.
This surgical procedure involves pushing up the maxillary sinus to elevate it and grafting bone onto the thinned portion of the upper jaw to allow a dental implant to be placed without risk of damaging the sinuses.
Why Is a Sinus Lift Surgery Performed?
Bone Loss in the Upper Jaw
Tooth loss in the back region of the upper jaw often leads to progressive resorption of the jawbone. This decrease in bone volume can compromise the stability needed for dental implant placement.
In addition, the natural expansion of the upper maxillary sinus tissues downward further reduces the available space for implantation. In these cases, a sinus lift is a surgical procedure indicated to restore adequate bone height.
The Role of the Maxillary Sinus and Its Implications in Implant Dentistry
The maxillary sinus is a cavity located above the upper molars and premolars. When an implant is being considered in this area, it’s crucial to determine whether the distance between the sinus floor and the jaw level is sufficient.
If this is not the case, the surgeon performs a specific surgery. This procedure involves gently lifting the membrane lining the inside of the sinus to create a space where a bone graft is inserted, thereby increasing the available bone height. This approach preserves the integrity of the sinus tissues while ensuring a solid foundation for implantation.
How is a sinus lift procedure performed?
Pre-Treatment Examination and Planning
Before proceeding with a sinus lift, an oral and maxillofacial surgeon evaluates the level of the jawbone using imaging to determine whether the dental treatment is appropriate. This step allows for proper visualization of the jawbone, membrane, and sinus tissues in order to plan the procedure safely.
The Surgical Procedure in Brief
The procedure begins with an incision in the gum to access the sinus cavity. The professional lifts the sinus membrane using precise instruments, creating a space between the mouth and the sinus. This void is then filled with a material that may come from the patient, often covered with a thin protective layer. This is referred to as a sinus membrane elevation.
Post-Operative Care and Healing After a Sinus List
After surgery, a healing period is essential before the implants are placed. This phase allows the tissues and graft to integrate properly with the existing bone. Post-operative care is recommended to avoid any complications and promote long-term stability.
Is a sinus lift always necessary before an implant?
A sinus lift is not systematically required before placing future dental implants. It becomes necessary when the height of the thin layer of bone present under the sinus is insufficient to ensure the stability of the dental implants.
This can occur due to bone resorption or the particular anatomy of the maxillary sinus. A cavity is then created in the bone to lift the tissues covering the sinus floor, allowing bone volume to be added. The goal is to achieve a solid foundation to support the implant while preserving the integrity of the surrounding oral structures.
Centres dentaires Lapointe for Your Sinus Lift
A sinus lift allows for proper preparation of the bone for implant placement. At Centres Dentaires Lapointe, a personalized assessment determines whether this procedure is necessary before any treatment.
