Patents Assigned to Sirona Dental Systems GmbH
  • Patent number: 10949575
    Abstract: A system that includes a gingiva former, a final abutment, and a final implant replacement. The gingiva former includes connecting geometry for attachment to an implant, a customized edge, a tapered bottom portion, and a tapered top portion that includes a circumferential surface. The customized edge and the tapered bottom portion have respective shapes that correspond to a 3D data set of a region of the final abutment that includes and is below an edge of the final abutment. The circumferential surface and a longitudinal axis of the connecting geometry form an angle of inclination. The customized edge of the gingiva former either (i) corresponds to a gingival line of the final implant replacement or (ii) is at a distance from the gingival line of the final implant replacement such that the gingival line of the final implant replacement is above the edge of the gingiva former.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 16, 2021
    Assignee: Sirona Dental Systems GMBH
    Inventor: Sascha Schneider
  • Patent number: 10732244
    Abstract: A method for operating an imaging system, and a system, apparatus, and computer-readable medium, that operate in accordance with the method. The method includes providing field-of-view (FoV) information, and automatically selecting at least one recording sequence based on at least one of a particular diagnostic application of interest and the FoV information.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: August 4, 2020
    Assignee: Sirona Dental Systems GMBH
    Inventors: Volker Rasche, Erich Hell, Johannes Ulrici
  • Patent number: 10521935
    Abstract: The invention relates to a method for creating a virtual dental image from a 3D volume (1) comprising volumetric image data. Firstly, a sub-volume (8, 12, 15, 18) of the 3D volume (1) is defined and then a virtual projection image (30, 41) is generated for said sub-volume (8, 12, 15, 18) from a specific X-ray imaging direction (11) by computation of the volumetric image data in said X-ray imaging direction (11).
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 31, 2019
    Assignee: Sirona Dental Systems GmbH
    Inventor: Johannes Ulrici
  • Patent number: 10357212
    Abstract: The invention relates to a method for capturing a three-dimensional x-ray image (1) of an object (2) by means of an x-ray system (3) comprising an x-ray source (4), an x-ray detector (5) and a shutter matrix (7), the shutter matrix (7) having a plurality of shutter elements (18), the x-ray absorption properties of which are controllable. In the first method step, at least one region (21) to be captured of the object (2) is defined, wherein settings are planned for the individual shutter elements (18) of the shutter matrix (7) for different rotary positions (14, 15, 16, 17), taking into account the defined area (21) to be captured. Then, a plurality of two-dimensional x-ray images is captured from the planned rotary positions (14, 15, 16, 17) during at least one partial rotation (9) using the planned settings of the shutter elements (18), wherein the overall three-dimensional x-ray image (1) of the area (21) to be captured is generated from the individual two-dimensional x-ray images.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: July 23, 2019
    Assignee: Sirona Dental Systems GMBH
    Inventors: Kai Lindenberg, Stefan Wundrak
  • Patent number: 10127347
    Abstract: A method is proposed for creating a virtual articulator for a jaw and the associated dentition having the following steps: image a virtual model of the teeth of the maxilla (140); image a virtual model of the teeth of the mandible (130); buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in the closed-bite position; buccal imaging of the position and orientation of the teeth (130, 140) of the maxilla and mandible in a slightly open position; computational determination of the position of the condylar articulation axis (150) relative to the teeth (130, 140) of the mandible and/or maxilla from the imaged positions and orientations; and a virtual articulator can thereby be created without having to possess special knowledge, e.g. of the dimensions of a specific mechanical articulator or any adapter elements, or their arrangement.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: November 13, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventor: Konrad Klein
  • Patent number: 10111595
    Abstract: The invention relates to a method for checking tooth positions, wherein an initial three-dimensional volume exposure (1) of teeth (2, 3, 4) to be checked is implemented, wherein the position and orientation of the teeth (2, 3, 4) to be checked are determined based on the initial volume exposure (1); wherein the teeth to be checked are natural teeth (2, 3, 4) comprised of tooth stumps (6, 7, 8) and tooth roots (9, 10, 11) and/or are artificial teeth comprised of artificial tooth stumps and implants; wherein the positional relationship and orientation of the tooth stumps (6, 7, 8) relative to the tooth roots (9, 10, 11) and/or to the implants are determined in particular.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 30, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventors: Stefan Wundrak, Kai Lindenberg
  • Patent number: 10101088
    Abstract: 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 furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 16, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventors: Christian Schmidt, David Figge, Siegfried Gleditzsch, Peter Fornoff
  • Patent number: 10080636
    Abstract: The invention relates to a method for measuring a dental situation comprising a plurality of implants and/or preparations for inserting dental restorations. Using a first measuring method, a first region of the dental situation is initially recorded while first measurement data are generated. The first region is selected to comprise at least two implants and/or preparations. Subsequently, object regions surrounding the implants and/or the preparations are established, and, while using a second measuring method, the established object regions are detected, and second measurement data are generated. The second measuring method is more precise than the first measuring method.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 25, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventors: Frank Thiel, Sascha Schneider
  • Patent number: 10076388
    Abstract: The method for the production of a dental prosthesis part comprises the provision (11) of a dataset (2) for a dental prosthesis part (6) for use in a CAD/CAM technique, the provision (12) of reference data (3) for optical properties of different dentin materials and translucent enamel materials for the dental prosthesis part (6) and a relationship (4) between said optical properties, the desired optical properties and the dimensions of the dental prosthesis part (6), the definition (13) of a first setpoint (S1) for the optical properties of a dentin region, the definition (14) of a second setpoint (S2) for the optical properties of an enamel region, the definition (15) of a third setpoint (S3) for a thickness of the enamel region of the dental prosthesis part (6), the selection and provision (16) of a dental prosthesis mold block (5) having a dentin region made from a material.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 18, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventor: G√ľnter Saliger
  • Patent number: 10052079
    Abstract: The invention relates to a method for producing an x-ray image (1) of an object (2) by means of an x-ray device (3). An x-ray source (4) and an x-ray detector (5) are moved about an object (2) during an at least partial circulation (8, 9), and the x-ray beams (10) which are generated by the x-ray source (4) and pass through the object (2) are detected from multiple different directions by means of the x-ray detector (5). In the process, at least one optical camera (13, 14) captures the object (2) during the circulation, wherein an optical image (15, 17) is produced. The optical camera (13, 14) has a rigidly defined position relative to the x-ray source (4) and/or the x-ray detector (5). The optical image (15, 17) is then used to determine a movement trajectory of the object (2) relative to the x-ray source (4) and/or the x-ray detector (5).
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 21, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventors: Ciamak Abkai, Kai Lindenberg
  • Patent number: 10045840
    Abstract: The invention relates to a blank for the production of a dental shaped body, wherein the blank has a corpus (2) of tooth restoration material, from which the shaped part to be fabricated is carved by means of a tool (4) by removal of material. The blank has coding means (1) formed on part of the surface (6) of the blank corpus (2), which coding means (1) has at least one structure (8, 9) for identification of the blank. The coding means (1) consists of a plurality of panels (5.1) at the level of the surface (6) of the corpus (2) and a plurality of panels (5.2, 5.3) incorporating a flat structure (8, 9) at a level (h1, h2) which is distinguishable from at least the level of the surface (6) of the corpus (2). The invention further relates to a method for identifying a blank with the aid of coding means (1).
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: August 14, 2018
    Assignee: Sirona Dental Systems GMBH.
    Inventor: Klaus Niewiadomski
  • Patent number: 9980651
    Abstract: The invention relates to a method for the optical three-dimensional measurement of a dental object, wherein a first region of the dental object is measured using a first optical three-dimensional measurement method, wherein the first optical three-dimensional measurement method is based on a triangulation method and on a fringe projection method. According to the invention, a powdering occurs at least on the first region, wherein first image data are generated. Using a less precise, second optical three-dimensional measurement method, a second region of the dental object is subsequently measured without previous powdering, wherein second image data are generated. Afterwards, the first image data are combined with the second image data to form an overlapping three-dimensional exposure.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: May 29, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Joachim Pfeiffer, Frank Thiel
  • Patent number: 9958207
    Abstract: 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 furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 1, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Christian Schmidt, David Figge, Siegfried Gleditzsch, Peter Fornoff
  • Patent number: 9949807
    Abstract: A drill guide for creating a drilled implant hole for a dental implant, and a method for producing the drill guide. The drill guide includes a base part having at least one access opening and at least one sleeve. A first surface of the base part has an impression of a preparation site, and a second surface of the base part opposite the first surface has a support surface. The access opening expands from the second surface to the first surface of the base part. The access opening and the support surface are shaped in such a way that the sleeve can be inserted at least partially into the access opening, and the sleeve, when inserted, rests on the support surface and is positioned and oriented relative to the base part.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: April 24, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Ulrich Orth, Sascha Schneider
  • Patent number: 9936166
    Abstract: The invention relates to a method for planning or for checking the planning of a dental and/or a maxillofacial treatment, wherein at least one video recording of an object (3) is recorded by means of at least one video camera (1). A patient model (4) is available which comprises image data of the object (3), wherein the video recording is virtually coupled to the patient model (4) in such a way that a viewing direction (13) of the view of the patient model (4) is changed in dependence on a changing recording direction (9, 46, 47, 48, 49, 50) of the video recording when the video camera (1) is moved in relation to the object (3).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: April 3, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Kai Lindenberg, Ciamak Abkai
  • Patent number: 9877814
    Abstract: Preparation of a dental prosthesis that includes a gingiva part having retention holes for seating of manufactured teeth, with the retention holes being enlarged relative to the manufactured teeth. Wax in the enlarged retention holes permits adjustments in positioning of the manufactured teeth, and a helper structure preserves this positioning when the wax is removed and a curable gingiva material is filled into the retention holes. Aspects described herein include digital and/or automatic design of the dental prosthesis and its constituent pieces, as well as automated fabrication thereof in whole or in part, such as in a dental CAD/CAM system.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 30, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Paul Schnitzspan, Thorsten Jordan
  • Patent number: 9860520
    Abstract: A system and apparatus for obtaining images of an object, a method for operating an optical camera system to obtain images of the object, and a computer program that operates in accordance with the method. The system includes an optical system and at least one processing system. The optical system is arranged to capture at least one first image of the object while the optical system operates in an imaging mode, and is also arranged to capture at least one second image of the object while the optical system operates in a diagnostic mode. The at least one processing system is arranged to combine the first and second images.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: January 2, 2018
    Assignee: SIRONA DENTAL SYSTEMS GMBH
    Inventors: Daniel Michaeli, Frank Thiel
  • Patent number: 9833298
    Abstract: A dental apparatus that includes a turbine, a rotor, and a disruptive contour. The turbine drives a tool by compressed air. The rotor is arranged in a turbine compartment and rotates about its longitudinal axis. The rotor includes a plurality of blades that extend up to a front side of the rotor. The disruptive contour is at least one protrusion on a wall opposite the front side of the rotor which extends over a height in a direction of the longitudinal axis of the rotor.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 5, 2017
    Assignee: Sirona Dental Systems GmbH
    Inventors: Matthias Rein, Siegfried Goisser, Metin Ertugrul, Ralf Sutter
  • Patent number: 9801701
    Abstract: Digital design and/or fabrication of a dental prosthesis that includes a gingiva part having retention pockets and corresponding injection channels that extend from the retention pockets to an exterior of the gingiva part. The positioning of a matrix mated to a ball attachment of a dental implant is fixed in the retention pocket by injection of a curable adhesive through the injection channels and into the retention pockets. The location of the retention pockets and the injection channels may be automatically generated by a computer-aided design/computer-assisted manufacturing (CAD/CAM) system. The gingiva part including the retention pockets and injection channels can further be designed and fabricated by the CAD/CAM system.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: October 31, 2017
    Assignee: SIRONA DENTAL SYSTEMS GMBH
    Inventors: Paul Schnitzspan, Thorsten Jordan
  • Patent number: D793557
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 1, 2017
    Assignee: Sirona Dental Systems GmbH
    Inventors: Dieter Thoma, Stefan Maier