Prosthesis
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United States of America Patent
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Sep 26, 2017
Grant Date -
Jan 28, 2016
app pub date -
Jul 18, 2014
filing date -
Aug 20, 2013
priority date (Note) -
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Abstract
A prosthesis that contains zirconia and supplements a defective portion of a natural bone, and that is changed to a color approximate to that of the natural bone by a heat treatment after a γ-ray sterilization treatment. The color approximate to that of the natural bone has an L* value of 60 to 90, an a* value of −5 to 10, and a b* value of −5 to 10 in the L*a*b* color space. The highest temperature in the heat treatment is 100° C. to 300° C. The prosthesis is a fixture of a dental implant embedded into and bonded to a natural bone, an abutment, an implant crown, and the like.
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