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

Vita Zahnfabrik H. Rauter Gmbh Co. Kg

Degudent Gmbh

Degundent Gmbh

Bayer Intellectual Property Gmbh

Sirona Dental Systems Gmbh

Jörn Probst

Bernhard Durschang

Norbert Thiel

Markus Vollmann

Udo Schusser

Joachim Bibus

Michael Hackner

Walther Glaubitt

Matthias Beyer

Holger Böse

Michael Gödiker

Ruth Houbertz-Krauss

Jan Christoph Hansmann

Carsten Wiesner

Iwer Baecker

Thomas Stichel

Bastian Christ

Miranda Rothenburger-Glaubitt

Axel Katzschmann

Ferdinand Somorowsky

Holger Egger

Tobias Weigel

Florian Groeber-Becker

Thomas Gerlach

Michael GÖDIKER

Miranda Rothenburger Glaubitt

The present invention relates to a spinel glass-ceramic made from a composition with the components 25 to 50% by weight SiO, 10 to 35% by weight AlO, 1 to 15% by weight MgO, 1 to 15% by weight PO, 1 to 25% by weight ZrOand/or TiO, 0 to 20% by weight LaO, 0 to 10% by weight BO, and 0 to 15% by weight additives. The spinel glass-ceramic contains at least one spinel phase, but no high quartz solid solution phase. The glass-ceramic according to the invention exhibits very high mechanical stability, for example, very high flexural strength, wherein its optical properties can be simultaneously adjusted. In addition, the present invention also relates to a method for producing and the use of the spinel glass-ceramic. Furthermore, the present invention relates to a shaped dental product containing the spinel glass-ceramic.

Spinel glass-ceramic, method for the production thereof and shaped dental product containing the spinel glass-ceramic

The present invention relates to a method for producing biodegradable fibers on the basis of a silane compound, said silane compound being crosslinked during production and, at least to some extent, an organic acid being incorporated into the forming crosslinked structure via covalent bonds and/or contributing to the crosslinking. The present invention also relates to the fibers that can be produced by the method according to the invention and to the use thereof.

Highly flexible degradable fibers

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

The invention relates to glass ceramics based on the lithium metasilicate system (LiO.SiO(LiSiO)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.

Lithium silicate glasses or glass ceramics, method for production thereof and use thereof

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.

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.

The invention refers to a method for producing a dental restoration comprising a lithium silicate glass or glass ceramic as well as a dental restoration inself. The invention further refers to a ingot with the same composition having a defined strength.

Dental restoration, method for its production and ingot

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.

The invention relates to glass ceramics, which show high strength, high translucency, high chemical stability and which are still mechanically processible. The invention further refers to a method for producing a dental restoration comprising such glass or glass ceramic as well as the dental restoration itself.

Dental restoration, method for production thereof and glass ceramic

The invention relates to glass ceramics based on the lithium metasilicate system (LiOSiO(LiSiO)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.

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Kürnach, Germany

Jörn Probst