Sirona Dental Systems Gmbh

Dentsply Sirona Inc.

Sirona Dental Systems Gmbh & Co. Kg

Kuka Roboter Gmbh

Peter Fornoff

Christian Schmidt

Franz Basler

Frank Thiel

Joachim Pfeiffer

Oliver Nowarra

Wolfgang Eiff

Sascha Schneider

Ulrich Schulze-Ganzlin

Thomas Hasenzahl

Josef Pabst

Hans-Christian Schneider

Daniel Weiss

David Figge

Siegfried Gleditzsch

Gerd Helmreich

Uwe Sauer

Daniel Weiß

Axel Tillmann

Andreas Schaefer

Michael Turzer

The present invention relates to a dental prosthesis molding block for producing a dental prosthesis part. The block comprises an inner material that is at least partially surrounded by an outer material, the hardness of which differs from the hardness of the inner material. The inner material forms part of a first surface of the dental prosthesis molding block. The invention further relates to a method for producing a dental prosthesis part. In said method, a dental prosthesis molding block is provided, and the dental prosthesis part is produced by removing material from the dental prosthesis molding block using a CAD/CAM process. In doing so, a pin having a self-tapping external screw thread is created.

Dental prosthesis molding block and method for producing a dental prosthesis part from the dental prosthesis molding block

A method of manufacturing a dental restoration including a construction step (S) of preparing construction data for a dental tool machine for machining the dental restoration from a workpiece. The construction data defines at least the geometry of the dental restoration within the workpiece. The method includes a starting step (S) of starting machining of the dental restoration from the workpiece in accordance with the construction data. The method also includes a preparing step (S) of starting preparing, before termination of the construction step (S), the dental tool machine at least through equipping it with all the consumables essential for starting the starting step (S), and completing preparing the dental tool machine before start of the starting step (S).

Method of manufacturing a dental restoration

The present invention relates to a dental prosthesis forming block () for producing a dental prosthesis (). The forming block having a pin () with a self-tapping outer thread, which is arranged on a first surface () of the dental prosthesis forming block (). The invention further relates to a method for producing a dental prosthesis (). In this method the dental prosthesis block () is provided and the dental prosthesis () is produced by removing material from the dental prosthesis forming block () by a CAD/CAM method, such that the pin () forms part of the finished dental prosthesis ().

Dental prosthesis forming block and method for producing a dental prosthesis from the dental prosthesis forming block

The present invention relates to a method for the design and manufacture of a dental component with a surface, wherein a 3D model of the dental component is designed by means of a CAD unit and the dental component is manufactured by a CAM unit on the basis of the 3D model. In order to provide a method which significantly shortens the time required for the design and manufacture of a dental component, so that the length of the dental session at which the patient must be present is shortened, it is inventively proposed that the 3D model is manufactured in at least one first design step, in which a first 3D submodel is designed with at least one first surface section, and a second design step in which a second 3D submodel is designed with at least one second surface section, wherein the first design step is completed before the second design step and the CAM unit begins the manufacture of the first surface section of the dental component based on the first 3D submodel before the design of the second 3D submodel is completed.

Method for the design and manufacture of a dental component

A sintering furnace for components made of a sintered material, in particular for dental components, having a furnace chamber having a chamber volume (VK). A heating device, a receiving space having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device, and a useful region having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber. The furnace chamber has an outer wall consisting of walls having a wall portion to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space. In the furnace chamber the heating device has a thermal radiator having a radiation field which is disposed on at least one side of the receiving space. At least the useful volume (NV) disposed in the receiving space is disposed in the radiation field of the radiator.

Sintering furnace for components made of sintered material, in particular dental components

The invention relates to a method for constructing at least one dental prosthetic part or a bracket, with at least one adhesive surface, in which aD model is made of the dental prosthetic part. Recesses are constructed on the adhesive surface of theD model.

Method for constructing at least one dental prosthetic part or a bracket having at least one adhesive surface

The invention relates to a method for producing a dental aid from a thermoplastic film or plate, wherein a digital three-dimensional working model is created in a computer-aided manner using a three-dimensional data set of at least one part of an upper jaw and/or lower jaw.

Production method for a dental aid made of a thermoplastic film or plate

The invention relates to a sintering furnace () for components () made of a sintered material, in particular for dental components, comprising a furnace chamber () having a chamber volume (VK), wherein a heating device (), a receiving space () having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device (), and a useful region () having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber (). The furnace chamber () has an outer wall () consisting of a plurality of walls having a wall portion () to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space (). In the furnace chamber () the heating device () has a thermal radiator () having a radiation field () which is disposed on at least one side of the receiving space (). At least the useful volume (NV) disposed in the receiving space () is disposed in the radiation field () of the radiator (), wherein the maximum possible distance (d) of the component () to be sintered from the radiator () corresponds to at most twice the dimension (D) of the maximum useful volume (VN).

The invention relates to a sintering furnace for components made of a sintered material, in particular for dental components, comprising a furnace chamber having a chamber volume (VK) and a chamber inner surface (OK), wherein a heat-up device, a receiving space having a gross volume (VB) located in the chamber volume (VK) and delimited by the heat-up device, and a useful region having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber. The furnace chamber has an outer wall consisting of a plurality of walls having a wall portion to be opened for introduction into the receiving space of a component to be sintered and having an object volume (VO). In the furnace chamber the heat-up device has a thermal radiator having a radiation field which radiator is disposed on at least one side of the receiving space. Said thermal radiator has a specific resistance of 0.1 &#x3a9;mm/m to 1,000,000 &#x3a9;mm/m and has a total surface, the maximum of which is three times the chamber inner surface (OK). With this sintering furnace a heat-up temperature of at least 1100&#xb0; C. can be achieved within 5 minutes at a maximum power input of 1.5 kW.

Sintering furnace for components made of sintered material, in particular, dental components

The invention relates to a method for planning a heat treatment of a dental prosthesis part (), in which a 3D model () of the dental prosthesis part to be produced () already exists. A temperature profile () for the heat treatment of the dental prosthesis part () is automatically determined by a computer () as a function of determined geometric parameters () of the dental prosthesis part to be produced () and/or of determined material parameters of the dental prosthesis part to be produced ().

Method for planning a sintering of a dental prosthesis part

The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnacecomprises a heatable furnace chamberfor the componentto be sintered, the furnace chamberhaving a wall sectionto be opened for inserting the componentto be sintered into the furnace chamber. Drive meansare provided for mechanized opening and closing of the wall section, and a controlis provided for the drive meansthat has an actuation elementfor the drive means. Furthermore, a heating devicefor the furnace chamberis provided, and the controlcauses the furnace chamberto be heated. Actuating the control elementtriggers the loading sequence of the control, and the drive meansare automatically actuated by the controlcorresponding to the loading sequence. An additional subject is a method for operating the sintering furnace, as well as a computer program therefor.

Sintering furnace for components consisting of a sintering material, in particular for dental components, and a method for sintering such components

A carrier for at least one fastening element () to be fabricated having an attachment area whereby the carrier is provided with a holding piece () for attachment in a receiving part of a finishing machine and whereby the carrier includes a carrier piece () for the fastening element () and the carrier piece () is embedded at least partially in the carrier piece () in a manner so that the attachment area () of the fastening element () can be fabricated. A method for producing a fastening element () to be finished and to be attached to an individual surface whereby the contour of the attachment area is defined with the aid of data of the surface onto which the fastening element () is to be attached and whereby a pre-shaped, not yet individualized fastening element () is formed by removal of material to produce the specific contour. Furthermore, an auxiliary positioning part () is provided with a contour that is continued by the contour of the attachment area, which is also defined by the surface onto which the fastening element () is to be attached.

Carrier for a fastening element to be fabricated and a method for the production therefor, particularly as an orthodontic bracket

A method for recording an image of an object includes projecting a strip pattern onto the object, recording the projected strip pattern as raw image data using a camera, and calculating an image of the object from the raw image data. A strip pattern having a duty cycle of less than 1 can be used to increase measuring precision during measurement of a translucent object, and can eliminate a need for additional contrast agents for a recording of the object.

Recording method for obtaining an image of an object and recording device

A method for producing a dental shaped part includes checking an outer contour of a tool of machining equipment, using least one gauge provided on a blank formed from a tooth restoration material from which a dental shaped part is to be machined using the machining equipment. The method also includes machining the dental shaped part from the blank using the tool of the machining equipment, when the outer contour of the tool corresponds to the at least one gauge provided on the blank.

Method for producing a dental shaped part

A blank and method for the production of dental shaped bodies in machining equipment having at least two tools located in the machining chamber of the machining equipment, including a corpus of tooth restoration material, from which the shaped body can be carved by means of at least one of at least two tools by material removal. The blank exhibits at least two gages, each of which is in the form of a recess, the geometry of which is such that the tool selected for the cutting operation can be recognized by means of at least one of the gages by reference to its outer contour, the at least two gages being disposed on the blank in such a way that they can be simultaneously engaged by the at least tools when the blank is clamped in the machining equipment for carving purposes.

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Reichelsheim, Germany

Peter Fornoff