Abstract: Glasses and glass ceramics with high content of cerium and tin, which include the following components: Component Wt. % SiO2 48.0 to 75.0 Li2O 8.0 to 20.5 Cerium, calculated as CeO2 4.0 to 20.0 Tin, calculated as SnO 3.1 to 15.7 and which are particularly suitable for the preparation of dental restorations with fluorescence properties largely corresponding to those of natural teeth.

Abstract: Glasses with high content of cerium and tin including the following components: Component Wt. - % SiO2 38.0 to 68.0? Cerium, calculated as CeO2 4.0 to 23.0 Tin, calculated as SnO 3.0 to 18.0 Li2O 1.0 to 5.0? Alkali metal oxide MeI2O 5.8 to 15.9 Oxide of divalent elements MeIIO 3.2 to 10.5 Oxide of trivalent elements MeIII2O3 3.5 to 11.8 and which are particularly suitable for the preparation of dental restorations whose fluorescence properties largely correspond to those of natural teeth.

Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.

Abstract: Acid-stable glass fillers and self-adhesive dental composite cements with good transparency containing them. X-ray opaque glass filler with the following composition (wt. %): SiO2: 54.0-64.0; Al2O3: 10.0-25.0; B2O3: 0.0-10.0; La2O3: 0.1-10.0; WO3: 5.0-14.0; ZrO2: 0.1-7.0; MgO: 1.0-7.9; CaO: 0.1-6.0; ZnO: 0-6.0; SrO: 0-6.0, and radically polymerizable composition comprising, in addition to the radiopaque glass filler, at least one radically polymerizable monomer without an acid group, at least one radically polymerizable monomer containing an acid group, and at least one initiator for the radical polymerization. The glass filler is characterized by a high acid stability.

Abstract: An exposure device (100) for illuminating a dental object (101), having a chamber (103) for receiving the dental object (101); and a radiation source (105) for exposing the dental object (101) to a wavelength greater than 350 nm and to a power density greater than 10 W/cm2.

Abstract: Quartz solid solution glass ceramics and precursors thereof are described, which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.

Abstract: Quartz solid solution glass ceramics and precursors thereof are described. which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.

Abstract: A lithium silicate glass ceramics having lithium disilicate as main crystal phase and having not more than 40 wt.-% of lithium disilicate crystals.

Abstract: Quartz solid solution glass ceramics and precursors thereof are described. which are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.

Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0 and which are suitable in particular for the production of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Abstract: Lithium silicate glass ceramics and precursors thereof are described, which comprise copper and are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.

Abstract: Lithium silicate glass ceramics and precursors thereof are described, which contain tin and are characterized by very good mechanical and optical properties and can be used in particular as restorative materials in dentistry.

Abstract: A radically polymerizable dental material having at least one radically polymerizable monomer without acid groups, at least one radically polymerizable monomer containing an acid group, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one initiator for the radical polymerization, wherein the filler is an acid-treated fluoroaluminosilicate glass filler and/or radiopaque glass filler.

Abstract: A forming apparatus (100) for a dental object (101), having a forming means (127) for producing a predetermined spatial shape of the dental object (101); and a radiation source (105) for emitting radiation having a wavelength shorter than 350 nm onto the material (129) of the dental object (101).

Abstract: An exposure apparatus (100) for illuminating a dental object (101), including a chamber (103) for receiving the dental object (101); and a radiation source (105) for emitting radiation having a wavelength shorter than 350 nm into the chamber (103).

Abstract: An oven (100) for heating a dental object (101), having a chamber (103) for receiving the dental object (101); a radiation source (105) for emitting radiation having a wavelength smaller than 350 nm into the chamber (103); and heating means (113) for heating the dental object (101) in the chamber (103).

Abstract: A process for the preparation of multi-coloured dental restorations is described, in which glasses and glass ceramics with various compositions are given the shapes of dental restorations and colour changes are effected in the glasses and glass ceramics by irradiating them with artificial electromagnetic radiation and subjecting them to a heat treatment.

Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0? and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Abstract: The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: Component wt.-% SiO2 42.0 to 80.0 Al2O3 0.1 to 42.0 Cerium, calculated as CeO2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0 and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Abstract: Lithium silicate-low quartz glass ceramics are described which are characterized by a combination of very good mechanical and optical properties and can therefore be used in particular as restoration material in dentistry.