3M Espe Ag

3M Innovative Properties Company

3M Deutschland Gmbh

Robert Schnagl

Holger Hauptmann

Gallus Schechner

Anja B Fischer

Grit Kindler

Sybille A Frank

Ruediger Franke

Daniel Suttor

Björn Theelke

Michael Sogl

Michaela Urban

Sybille Frank

Stefan Hoscheler

Rainer Dittmann

Rudiger Franke

The invention relates to a coloring solution for coloring a dental ceramic article, the solution comprising: a solvent and a coloring agent, comprising rare earth element metals or ions being present in the solution in an amount of at least about 0.05 mol/1 solvent and transition metals or ions being present in the solution in an amount of about 0.00001 to about 0.05 mol/1 solvent. The invention also relates to a process for coloring dental ceramic articles, dental ceramic articles treated either with the coloring solution or obtainable by a process comprising the step of firing the dental ceramic articles.

Colouring solution for dental ceramic articles and related methods

The invention relates to blanks comprising zirconium oxide-based ceramic with an addition of 0.1 to 0.50 wt.-% of at least one of the oxides of the elements aluminium, gallium, germanium, indium and their use.

Blank comprised of a zirconium oxide ceramic with an oxide additive and the use thereof

The invention relates to the coloring of ceramics by means of ionic or complex-containing solutions. Solutions preferred for this contain defined concentrations of at least one of the salts or complexes of the rare earth elements or the elements of the subgroups. The invention also relates to a kit, which comprises at least one stock bottle with such a coloring solution, a receptacle for the coloring as well as optionally a screen.

Coloring ceramics by way of ionic or complex-containing solutions

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Landsberg, Germany

Robert Schnagl