Dental implants function as artificial tooth roots, on top of which
prostheses such as crowns, bridges or dentures can be placed. Although they are
one of the most popular methods for supporting replacement teeth, they are not
suitable for everyone. You must have be in good oral health and have enough
jawbone to make the surgery a success. If you have insufficient bone for dental
implant surgery, you may need to undergo sinus lift surgery.
Also known as sinus augmentation, sinus lift surgery adds bone to your upper
jaw in the area of your missing molars and/or premolars. Your dental surgeon
will cut the gum where your back teeth used to be and raise it to expose the
bone. He will then create a small window in the bone and push the membrane
lining the sinus up and away from your jaw before filling it with granules of
bone-graft material. This material may come from your own body, a cadaver or a
cow. If your own bone is to be used, it will usually be taken from other areas
of your mouth. Following inserting the bone-graft material, your dental surgeon
will stitch up the window in the bone. He will then leave the area to heal.
Depending on your individual needs, you may need to undergo a sinus lift four
to 12 months before dental implant surgery. When placed following a sinus lift,
your dental implants should last for many years.
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