Dental workpiece and method for producing same
AssigneeKuraray Noritake Dental Inc.
InventorsTakahiro Niwa, Kirihiro Nakano, Shinichiro Kato
Life of this patent
Estimating the term…
Abstract
The present invention provides a dental workpiece that exhibits excellent machinability in a sintered state while possessing suitable strength for dental use. The present invention relates to a dental workpiece that exhibits an erosion rate of 8.0 μm/g or more, or a product of erosion rate (μm/g)×average crystal grain size (μm) greater than or equal to 15 μm2/g when a spherical alumina slurry with an average particle diameter of 3.0 μm is projected in a micro slurry-jet erosion test, and that has a biaxial flexural strength of 300 MPa or more as measured in compliance with ISO 6872:2015.
Claims8
A dental workpiece that exhibits an erosion rate of 6.5 μm/g or more, or a product of erosion rate (μm/g)×average crystal grain size (μm) greater than or equal to 15 μm2/g when a spherical alumina slurry with an average particle diameter of 3.0 μm is projected at the dental workpiece in a micro slurry-jet erosion test, and that has a biaxial flexural strength of 300 MPa or more as measured in compliance with ISO 6872:2015.
Dependencies are inferred from the claim text.