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AssigneeIvoclar Vivadent AG
InventorsChristian Ritzberger, Elke Apel, Wolfram Höland, Frank Rothbrust, Harald Kerschbaumer, Volker Rheinberger
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The invention relates to compositions based on ZrO2, and single- and multi-coloured blanks made from oxide ceramics, and a process for their preparation, in which a) oxide ceramic powder is coated with a colouring substance, b) the coated powders are preferably graded and at least one coloured powder is filled into a compression mould, c) the coloured powder or powders are compressed to produce a shaped body, and d) the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations.
A composition comprising ZrO2, the composition further comprising the following components in wt.-%:
A composition comprising ZrO2, the composition further comprising the following components in wt.-%:
A composition comprising ZrO2, the composition further comprising the following components in wt.-%:
A composition comprising ZrO2, the composition further comprising the following components in wt.-%:
A multi-colored shaped body comprising a composition comprising ZrO2 and further comprising the following components:
A single- or multi-colored body made from colored oxide ceramic powder having a ratio of oxide ceramic component to mixtures of coloring oxides, of 100:
A single- or multi-colored body made from colored oxide ceramic powder having a ratio of oxide ceramic component to mixtures of coloring oxides, of 100:
A single- or multi-colored body made from colored oxide ceramic powder having a ratio of oxide ceramic component to mixtures of coloring oxides, of 100:
A single- or multi-colored body made from colored oxide ceramic powder having a ratio of oxide ceramic component to mixtures of coloring oxides, of 100:
A single- or multi-colored body made from colored oxide ceramic powder having a ratio of oxide ceramic component to mixtures of coloring oxides, of 100:
Dependencies are inferred from the claim text.