| abstract |
Method for producing a prosthesis (5, 6, 8, 10; 30; 40; 50; 60; 70; 80) containing zirconia and to complement a defective part of a natural bone, comprising: a γ-ray sterilization treatment of the prosthesis containing zirconia in a volume ratio of 50% or more, characterized in that the procedure further comprises: a heat treatment after the γ-ray sterilization treatment, thereby modifying a color approximated to of natural bone, in which the approximate color of that of natural bone has an L * value between 60 and 90, a * value between -5 and 10, and b * value between -5 and 10 in the L * color space a * b *, and the heat treatment has a higher temperature of between 100ºC and 300ºC. |