Vita Zahnfabrik H. Rauter Gmbh Co. Kg

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Degudent Gmbh

Straumann Holding Ag

Degundent Gmbh

Joachim Bibus

Norbert Thiel

Markus Vollmann

Udo Schusser

Bernhard Durschang

Jörn Probst

Michael Dorn

Simon Berner

Michael Tholey

Stefan Aechtner

Andreas Schmid

Vilma Geske

Enno Bojemueller

Birgit Huber

Olivia Albarski

Heiner Bieli

Alain Kounga

Joern Probst

Jorn Probst

Enno Bojemüller

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

Lithium disilicate glass-ceramic, method for production thereof and use thereof

A body made of a ceramic material based on zirconia, the body having a surface region extending from the surface of the body to a predetermined depth and a core region integrally formed with the surface region. The ceramic material in the surface region includes a crystalline phase A formed by zirconia in tetragonal phase. The ceramic material in the surface region further includes a crystalline phase B, the crystal structure of which including apart from zirconium and oxygen at least one further component X in a periodic arrangement, the crystalline phase B having a lower theoretical density than crystalline phase A.

Body made of a ceramic material

The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

A porous, silicate, ceramic body, optionally with different colors, with a first density, can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, is 25 to 180 MPa.

Porous silicate ceramic body, dental restorations and method for the production thereof

The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.

Porous, silicate, ceramic body, dental restoration and method for the production thereof

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

Molded member made of form-stabilized material, comprising at least one first component and one second component, characterized in that the second component has a different pigmentation than the first component and the second component is disposed inside the first element, forming a boundary surface, in such a way that the boundary surface represents a spatially curved surface.

Molded member made of form-stabilized material and method for the manufacture thereof

Body made of a ceramic material, the body having as an integral part thereof a surface region reaching from the surface of the body down to a predetermined depth. According to the invention, the surface region is enriched with a calcium component thereby forming a hydrophilic surface area.

The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

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Bad Säckingen, Germany

Joachim Bibus