Ivoclar Vivadent Ag

Ivoclar Ag

Johannes Lorünser

Michael Brotzge

Robert Grünenfelder

Philipp Kettner

Gottfried Rohner

Horst Ulbricht

Rudolf Jussel

Jörg Ebert

Walter Pokorny

Wolfram Höland

Marcel Schweiger

Hans-Peter Foser

Joerg Ebert

The invention shows a material provision device for a stereolithography apparatus to provide print material (), in particular a photopolymer, to be cured, wherein the material provision device () surrounds an in particular limp material cartridge () which receives the print material () on all sides and (UV) light-proof, and the material cartridge () comprises an outlet () via which the print material () may be dispensed and which is received in a connection () or a spout in the material provision device () and is at least partially supported thereon or therein or seals against it.

Material provision device for a stereolithography apparatus

In a stereolithography apparatus a material provision device for print material () to be cured, in particular a photopolymer, is provided. The material provision device () receives a material cartridge () which in turn receives the print material () and surrounds it on all sides. The material cartridge () may be connected to an outlet valve unit () in a liquid-proof manner via which the print material () may be output and which is received at least partially in the material provision device () and which is supported at least partially thereon or therein or sealed against it. The outlet valve unit () comprises a valve () which is opened and closed depending on the relative position, in particular the swiveling position, of material provision device () and stereolithography apparatus.

Stereolithography apparatus material provision device

The invention relates to a dental furnace comprising a firing hood equipped with a heating device that is movably supported for the opening and closing of the dental furnace relative to a base intended for receiving a dental restoration part, and further comprising a heat detection device that is directed towards an area above the base, in particular towards one or more dental restoration parts, and further comprising a control or regulating device for the dental furnace that is coupled to the heat detection device, wherein the heat detection device is configured as a thermal imaging camera () which is directed towards the area above the base while the firing hood () is partially or completely opened, and which feeds an at least two-dimensional image in the form of a matrix of the one or more inserted dental restoration parts () to the control or regulating device and/or to a muffle () that is intended for the generation of the dental restoration parts ().

Dental furnace

The invention relates to a dentel device for the treatment of a dental restoration part, comprising at least one operating program, a storage of the dental device and at least one detection device for at least one object. The detection device can detect data of the object and this data, in particular together with an operating program associated with the object, can be stored in a storage of the dental device or can be compared to the data of objects which have been stored in advance in the storage of the dental device. The dental device, depending on the comparison result of the data of a detected object with the data of objects which have been stored in advance in the storage of the dental device, starts the associated operating program or shows it for selection.

Dental device

The invention relates to a firing furnace or press furnace for dental restoration parts, having a control device for the control of the furnace on the basis of at least one firing/press program; a display device, at least for displaying operating instructions based on symbolic representations; an input device, at least for selecting a firing/press program; wherein the control device is configured to be able to switch the furnace after selection of a control program to a security mode in which it displays one or several operating instructions and in which the input of firing or press parameters of the control program and/or the selection of a firing or press program is disabled.

Firing furnace and press furnace

A process for manufacturing a dental restoration part as well as a dental furnace are provided in which the dental restoration part is produced on a foundation by means of applying at least two layers, wherein initial data, in particular three-dimensional data of the foundation, are stored in a memory device, and picture data, in particular three-dimensional data concerning the outer contour of the dental restoration part to be produced and the layers of the dental restoration part to be applied, are determined and in particular stored. It is provided that the dental restoration part is positioned at least partially during its production within the picture recording area of a picture recording device (), and that before finishing the dental restoration part () and upon the application of at least one layer, the latter is recorded at least with regards to the thickness of the layer and/or its color, is displayed in particular via a display device (). Furthermore, the layer recorded is compared with the picture data () at least regarding the thickness of the layer. An error signal is produced if the layer applied does not correspond to the predetermined layer in accordance with the picture data () regarding the thickness of the layer and/or the color and/or the other parameters.

Process for manufacturing a dental restoration part and a dental furnace for manufacturing the same

Display screen or a portion thereof having an animated graphical user interface

An oven particularly suitable for dental materials is provided with a firing plate on which a calibration apparatus can be removably located. The calibration apparatus includes a meltable element whose melting is detectable by a detecting device. The calibration apparatus is additionally provided with a control device. The firing plate includes a device for receiving therein the calibration apparatus including a non-electrically conducting support for supporting two electrically conducting contact posts of the calibration apparatus.

Oven, in particular for dental material

A method of controlling an oven for producing tooth replacement components. An electric motor moves a piston that acts upon a moldable restoration material. The restoration material is introduced into a muffle oven having an oven hood that can be removed from the muffle. The compactibility curve is established as a function of the type of dental material utilized. Immediately after conclusion of the mold time, the motor is turned off and the oven hood is removed.

Method of controlling an oven

A muffle furnace for producing dental prosthesis has a muffle into which dental material is placed and a drive to which a piston is connected. The piston is moveable by the drive into the muffle to apply pressure onto the dental material. A pressure sensing device for measuring pressure applied to the dental material is provided. The pressure sensing device has a pressure sensor and a deformation member having a first side and a second side. The first side of the deformation member is subjected to a counter force of the piston and the second side of the deformation member is fixedly attached to the muffle furnace.

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Bludenz, Austria

Johannes Lorünser