Sinus lift is a surgery that is done to add bone to upper jaw around the area where the molars and pre-molars are located. There are maxillary sinuses on both the sides of nose and the bone is added in between them and jaw. To make space for more bone, the sinus or schneiderian membrane has to be lifted.
When the sinuses are too close to the jaw, a sinus lift is conducted to add height to the bone. When molars or pre-molars are lost, on both sides the maxillary sinus expands which decreases the thickness of the upper jaw bone. To increase the height and thickness of the bone, a sinus lift surgery is done.
There can be many reasons behind the loss of
bone in the upper jaw. It could be due to a gum disease or tooth loss.
Since more and more people have started opting for dental implants for
missing teeth, sinus lifts have become very common. There are three
options when it comes to selecting a bone for the sinus lift surgery
When the bone is used from the patient’s own body, it is usually taken from other areas of mouth. In certain special cases, there are chances that the surgeon uses bone from the hip or tibia. In order to study the anatomy of the patient’s jaw and sinus, dentists do an X-ray or CBCT (3D X-Ray) before the sinus lift surgery takes place. Through the X-ray, the dentist is able to decipher the height or thickness of the bone and accordingly suggest the graft that needs to be used to perform the surgery.
Sinus lift is done by cutting the gum tissue which would expose the bone. Then a small window is created in the bone and the membrane which is lining the sinus on the other side of the window separates the sinus from the jaw. Bone grafting Granules, which is being used is then filled in the space separating the schneiderian membrane or the sinus membrane and upper jaw bone. Then the tissue is approximated with sutures. Dental implants are only possible after four to nine months of the sinus lift surgery. The new grafted material needs time to mesh with the existing bone and the time required for this depends upon the thickness of the bone.
One of the main risks of a sinus lift is that the procedure could puncture or tear the sinus membrane. In such a condition, the dentist will either suture the torn membrane or place a healing patch over it. If this does not help in repairing the tear. Infection is a risk involved in any surgical procedure, although it is a rare occurrence when it comes to sinus lift surgeries.
The success rate for sinus lifts is more than 90%, still it should be done after consultation from a trusted dentist. Since the procedure is a little invasive, it should be done only after removing all apprehensions and doubts. The patients need to rest after the procedure and give it significant amount of time to heal. If you plan on getting a dental implants then it is best to check your sinus health and see if you require a sinus lift.
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