Patent ID: 9212065
Filing Date: 2015-12-15
Classification: A61C,C01G,C04B

Abstract:
1. A zirconia sintered body, wherein, on a straight line extending in a first direction from one end to the other end, when a chromaticity (L*, a*, b*) by a L*a*b* colorimetric system of a first point positioned in a section from said one end to 25% of a whole length is (L1, a1, b1) and a chromaticity (L*, a*, b*) by the L*a*b* colorimetric system of a second point positioned in a section from said other end to 25% of the whole length, is (L2, a2, b2), L1 ranges from 58.0 to 76.0, a1 ranges from −1.6 to 7.6, b1 ranges from 5.5 to 26.3, L2 ranges from 71.8 to 84.2, a2 ranges from −2.1 to 1.8, b2 ranges from 1.9 to 16.0, L1<L2, a1>a2, b1>b2, and a tendency to increase or decrease the chromaticity by the L*a*b* colorimetric system from said first point to said second point does not change.