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Sometimes after teeth are extracted, people lose bone in the posterior upper jaw below the sinus. This results in limited available bone for placement of dental implants as a means of tooth replacement.
In order to now place dental implants in the back of the upper jaw, a bone graft procedure called a “sinus lift” or “sinus elevation” is necessary. These procedures can be performed concurrently with the placement of dental implants or, in some cases, may need to be performed a few months in advance of placing dental implants. This all depends on the amount whatever little bone is still available under the sinus.
There is a procedure called a 3D cone beam CAT scan which can determine how much bone exists in the area of the sinus. Then, dental implant placement can be planned in conjunction with the placement of dental implants or in advance.
The type of bone that is used in such grafts is cow bone. This bone is 100% safe as it is harvested from cows that are raised specifically for the purposes of these bone grafts and are fed and treated appropriately. There is no evidence in the scientific literature of any risks of disease transmission to humans from such treatment.
The sinus lift/elevation procedure has benefited millions of people world wide in the past 40 years since it was developed. This allows people to enjoy the function and comfort of dental implant supported fixed non-removal prosthetics for life.

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