The key to success of a dental implant is the quantity and quality of bone that remains after a tooth is lost. Due to its proximity to your sinuses, the rear upper jawbone is regarded as one of the most difficult areas to successfully place dental implants.
Sinuses essentially function as airways allowing air to pass, much like an empty room. Some of the roots in your upper teeth extend up into your sinuses. When these teeth are removed, only a thin wall of bone separates your sinus cavity from your mouth. As this bone heals following tooth removal, the sinus expands in size, further reducing the bone available for placement of dental implants. Fortunately, this problem can be corrected with a sinus lift procedure.
Dental implants need an adequate amount of bone to hold them in place. When the sinus expands following tooth removal, only a small amount of bone remains behind. If a dental implant is placed in such a location, much of the implant will be surrounded by the hollow sinus instead of strong supporting bone. With a sinus lift procedure, bone is added to the sinus to increase support for dental implants. The procedure takes less than two hours and may be accomplished with simple local anesthetic, just like when you get a filling on a tooth.
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