Abstract: A method is provided for making a dental restoration at a certain tooth color shade. The method comprises joining a veneer precursor, a framework and a compensation material to form the dental restoration. The tooth color shade is selected from among a continuous range of tooth color shades, but individual components of the dental restoration may be selected from discrete color shades. Further, a dental restoration, a kit and a use of the kit are provided in accordance with the invention.

Abstract: The invention relates to a colouring solution for dental ceramic framework comprising a solvent, a colouring agent comprising metal ions, and a complexing agent, wherein the amount of complexing agent is sufficient to dissolve the colouring agent in the solvent. The invention also relates to a process for colouring dental ceramic framework and dental ceramic framework coloured with the colouring solution.

Abstract: The present invention relates to a colouring solution for ceramic framework, the ceramic framework coloured with the solution as well as a process to obtain a uniformly coloured ceramic framework. The solution comprises a solvent, a metal salt and polyethylene glycol having a Mn in the range of 1.000 to 200.000.

Abstract: A translucent zirconia sintered body, a dental article comprising a shaped, translucent zirconia body, a zirconia green body, and methods of making a translucent zirconia sintered body, methods of making a dental article comprising a shaped, translucent zirconia body, and methods of making a zirconia green body are described.

Abstract: The invention relates to the processing of data regarding the three dimensional shape of a dental prosthesis, having two prosthesis sections and a connector section, wherein the connector section is connected to the two prosthesis sections and is less stable than the two prosthesis sections. The method includes the steps of (a) determining a stability parameter and a stability criterion for the connector section, (b) calculating the actual value for the stability parameter from the data, (c) checking the connector section to determine whether the actual value fulfills the stability criterion, and if not, generating a warning signal is to the user.

Abstract: The present invention relates to a device and process for dimensionally stable sintering of ceramic pre-shaped dental articles, the device comprising a suspension system having a base structure with at least one suspension point at a height suitable for suspending an article to be sintered; and a suspension element moveably connected to said suspension point for supporting said article to be sintered, wherein said suspension element itself forms a swing on which said article to be sintered is arrangeable.

Abstract: The invention relates to the processing of data regarding the three dimensional shape of a dental prosthesis, which has two prosthesis sections and a connector section, said connector section being connected to the two prosthesis sections and less stable than the two prosthesis sections, comprising the steps that:—a stability parameter and a stability criterion are determined for the connector section;—for the stability parameter, the actual value is calculated from the data;—it is checked for the connector section as to whether the actual value fulfills the stability criterion, and if not, that a warning signal is generated, wherein the determination of the stability criterion is dependent on at least one of the following prosthesis attributes:—the configuration of the prosthesis;—the position of the prosthesis inside the mouth;—the material and/or the cross-sectional profile of the connector section;—the type of the prosthesis sections adjoining the connector section.

Abstract: The present invention relates to a colouring solution for ceramic framework, the ceramic framework coloured with the solution as well as a process to obtain a uniformly coloured ceramic framework. The solution comprises a solvent, a metal salt and polyethylene glycol having a Mn in the range of 1.000 to 200.000.

Abstract: A process for the dimensionally-true sintering of ceramic pre-shaped items, in which the firing material is resting during sintering on supporting devices, not coated with metal, which independently adapt to the shrinkage dimensions which occur during the firing process or allow a contact-free support of the pre-shaped items.

Abstract: The invention relates to a method of producing a dental prosthesis, comprising the steps:

Abstract: 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.

Abstract: 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.

Abstract: A porous form body is produced of sinterable SiC-powder by forming a suitable suspension of said SiC-powder and then treating the suspension to convert it into droplets and the droplets into a granular material in which the granules are substantially larger than the particles of SiC-powder. The granular material is then formed into a green body, e.g. by spraying the granules onto a negative mold of the form body or slip-casting or the like. The green body is then sintered whereby the resulting porosity in the final form body provides the form body with low drag.