Dental mill blank, process for preparing the same, and uses thereof
OwnerJörg Reinshageninventor
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Abstract
A dental mill blank having an yttria-containing zirconia material. One embodiment provides a dental mill blank having an yttria-containing zirconia material, wherein the yttria-containing zirconia material has a fracture resistance of at least 6.0 MPa*m1/2, determined on a densely sintered test body of the yttria-containing zirconia material, and a biaxial flexural strength of at least 1200 MPa, determined on a densely sintered test body of the yttria-containing zirconia material. Furthermore, a process for preparing the dental mill blank, a process for preparing a dental restoration using the dental mill blank, and a dental restoration as such are provided.
Claims15
A dental mill blank comprising an yttria-containing zirconia material, the yttria-containing zirconia material having:
- a fracture resistance of at least 6.0 MPa*m1/2, determined on a densely sintered test body of the yttria-containing zirconia material, and
- a biaxial flexural strength of at least 1200 MPa, determined on a densely sintered test body of the yttria-containing zirconia material.
Dependencies are inferred from the claim text.