Vita Zahnfabrik H. Rauter Gmbh Co. Kg

Institut Straumann Ag

Marc Stephan

Norbert Thiel

Markus Vollmann

Bernhard Durschang

Wolfgang Burger

Zoe Koelbing

Philippe Chavanne

Sven Simeunovic

André Schöne

Marcel Mallah

Enno Bojemüller

Wolfgang Leonhardt

The present invention relates to a method for additive manufacturing of a position sensitive colored ceramic article comprising: a) providing at least one flowable ceramic component; b) forming a green body by sequential deposition of the ceramic component provided in step a) and optionally a support material not intended to be part of the final article; c) position sensitive application of a coloring substance in a solvent to at least a part of the surface of the green body formed in step b), wherein the coloring substance is applied simultaneously to the sequential deposition; d) heat treatment or curing of at least a part of the green body surface obtained in step c); wherein the method steps a)-d) are at least performed once; e) optionally removing the support material from the green body; and f) sintering the green body to obtain the ceramic article; wherein the coloring substance is a dyestuff according to ISO 18451-1:2019(E). In addition, the present invention relates to a system adapted to perform the method and a control data set configured, when implemented in an additive manufacturing system, to cause the system to execute the steps of the inventive method.

Functionalized ceramic article

The present invention relates to an all-ceramic dental prosthesis in which a porous ceramic matrix material is infiltrated with a glass, having a solubility of &#x3c;1100 &#x3bc;g/cmaccording to DIN EN ISO 6872. The invention also relates to the use of niobium-containing glass having an NbOcontent of more than 0.1% by weight as an infiltration glass for all-ceramic dental compositions.

Infiltration glass containing niobium

A process for the preparation of ceramic dental implants having a surface for improving osseointegration, wherein the following process steps are performed for preparing such surface: &#x2014;preparation of a ceramic blank having a surface; &#x2014;treating at least one partial area of the surface of the ceramic blank by an ablating process that produces a surface roughness of the surface that corresponds to a treatment by sand blasting under a blasting pressure of from 1.5 bar to 8 bar and with a grain size of the blasting media used for sand blasting of from 30 &#x3bc;m to 250 &#x3bc;m; &#x2014;followed by a chemical treatment of said at least one partial area of the surface of the ceramic blank treated with the ablating process; &#x2014;followed by a thermal treatment of the blank whose surface has been subjected to said ablating and chemical treatments at temperatures of &#x3e;125&#xb0; C. &#x3e; A ceramic body obtainable by the process according to the invention is also described.

Ceramic body and process for the preparation thereof

A process for the preparation of a ceramic molded part from a suspension/dispersion with a solids content and a fluid content by depositing solids content at the periphery of a porous self-supporting support that is at least partially immersed in the suspension/dispersion and has the same shape as the molded part to be prepared, but with a reduced size, wherein:

Method for the production of a ceramic molded part

A method for manufacturing ceramic parts with a certain porosity by sintering using microwaves, the materials to be sintered being arranged in a vessel, wherein

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Lörrach, Germany

Marc Stephan