Patents Assigned to 3Shape A/S
  • Volume rendering using surface guided cropping
    Patent number: 11600037
    Abstract: Disclosed is surface guided cropping in volume rendering of 3D volumetric data from intervening anatomical structures in the patient's body. A digital 3D representation expressing the topography of a first anatomical structure is used to define a clipping surface or a bounding volume which then is used in the volume rendering to exclude data from an intervening structure when generating a 2D projection of the first anatomical structure.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: March 7, 2023
    Assignee: 3SHAPE A/S
    Inventors: Anders Kjær-Nielsen, Adam Carsten Stoot
  • Detecting tooth shade
    Patent number: 11589965
    Abstract: Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: February 28, 2023
    Assignee: 3SHAPE A/S
    Inventors: Bo Esbech, Rune Fisker, Lars Henriksen, Tais Clausen
  • INTRAORAL SCANNING APPARATUS
    Publication number: 20230058298
    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
    Type: Application
    Filed: August 22, 2022
    Publication date: February 23, 2023
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Henrik ÖJELUND, Rasmus KJAER, Mike VAN DER POEL, Arish A. QAZI, Karl-Josef HOLLENBECK
  • SYSTEM AND METHOD FOR FABRICATING A DENTAL TRAY
    Publication number: 20230049287
    Abstract: According to an embodiment, a method for generating a digital data set for fabricating a physical dental bleaching tray useable to deliver an bleaching agent is disclosed. The method includes obtaining a three-dimensional digital representation of a patient’s dentition including teeth and gingiva; segmenting two or more teeth into individual tooth; identifying a facial surface of at least one of the segmented tooth; defining a facial surface portion including a surface area that is at least partly bound by a virtual boundary that is non- interfacing with the gingiva; generating a modified three-dimensional digital representation using the defined facial surface portion; and generating, based on the modified three-dimensional digital representation, the digital data set configured to be used in fabricating the physical dental bleaching tray.
    Type: Application
    Filed: January 22, 2021
    Publication date: February 16, 2023
    Applicant: 3SHAPE A/S
    Inventor: Rune FISKER
  • Drill guide assembly
    Patent number: 11553985
    Abstract: A drill guide assembly used to guide a drill into the jawbone of a patient during dental surgery includes at least one through going guide bore for guiding the drill, at least one attachment for securing a part of the drill guide assembly to the jaw of the patient during surgery, wherein the drill guide assembly includes a first part including the at least one first through going guide bore, the at least one first attachment and at least a first reference area for referring the first part to a first anatomical feature of the patient, a second part including a second reference area for referring the second part to a second anatomical feature of the patient, and a guiding structure for guiding the first part and the second into a desired configuration.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: January 17, 2023
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Birk Ploennigs, Thomas Hedegaard
  • METHOD FOR GENERATING EDGE CURVE FOR DENTAL DEVICES
    Publication number: 20230005196
    Abstract: According to an embodiment, a computer-implemented method for generating an edge curve to facilitate manufacture of at least a portion of a dental device is disclosed. The method includes identifying at least one tooth reference point for each of at least two teeth on a dental model; identifying at least one offset point corresponding to each of the at least one tooth reference points such that the at least one offset point is on a gingival surface of the dental model and located outside an interproximal area; and generating the edge curve by connecting the offset points such that the edge curve is outside the interproximal area and on the gingival surface.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 5, 2023
    Applicant: 3SHAPE A/S
    Inventors: Marat KHAITOV, Karl-Josef HOLLENBECK
  • DENTAL PREPARATION GUIDE
    Publication number: 20220409334
    Abstract: A method for validating a preparation of at least one tooth in a prepared set of teeth for determining whether the prepared tooth is capable of accepting a dental restoration includes obtaining a virtual dental preparation guide configured for validating the preparation of the at least one tooth; obtaining a digital 3D representation of the prepared set of teeth; visualizing the virtual dental preparation guide together with the digital 3D representation of the prepared set of teeth; and validating from the visualization of the virtual dental preparation guide together with the digital 3D representation of the prepared set of teeth whether the prepared at least one tooth is shaped such that it can accept the dental restoration.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Nikolaj DEICHMANN
  • Intraoral scanning apparatus
    Patent number: 11539937
    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: December 27, 2022
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Henrik Öjelund, Rasmus Kjaer, Mike Van Der Poel, Arish A. Qazi, Karl-Josef Hollenbeck
  • Modeling and manufacturing the superstructure for a denture
    Patent number: 11510759
    Abstract: A system and a method for providing a model of a superstructure joining a denture and a corresponding dental arch, the method includes the steps of obtaining a first 3D representation of at least a part of a preliminary model of the denture, obtaining a second 3D representation of at least a part of the dental arch comprising dental implants, and generating a model of a superstructure based on the first 3D representation, the second 3D representation, dental implant positions and dental implant orientations.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: November 29, 2022
    Assignee: 3SHAPE A/S
    Inventor: Rune Fisker
  • SCANNING SYSTEM FOR DETERMINING A HEALTH-CONDITION
    Publication number: 20220369907
    Abstract: Disclosed is a scanning system for determining a health-condition based on scanning an intraoral object. More specifically, the present disclosure is related to different methods of providing the health-condition, for example by adapting the scanner with different scanning modes.
    Type: Application
    Filed: October 9, 2020
    Publication date: November 24, 2022
    Applicant: 3SHAPE A/S
    Inventors: Nikolaj DEICHMANN, Esben Rosenlund HANSEN
  • Dental preparation guide
    Patent number: 11478330
    Abstract: A method for validating a preparation of at least one tooth in a prepared set of teeth for determining whether the prepared tooth is capable of accepting a dental restoration includes obtaining a virtual dental preparation guide configured for validating the preparation of the at least one tooth; obtaining a digital 3D representation of the prepared set of teeth; visualizing the virtual dental preparation guide together with the digital 3D representation of the prepared set of teeth; and validating from the visualization of the virtual dental preparation guide together with the digital 3D representation of the prepared set of teeth whether the prepared at least one tooth is shaped such that it can accept the dental restoration.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: October 25, 2022
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Nikolaj Deichmann
  • Scanning of edentulous patients
    Patent number: 11478344
    Abstract: Disclosed is a method for determining the relative arrangement of patient's jaws in a bite position when the patient's occlusion is not defined by natural teeth alone, where the method includes a step of obtaining a digital 3D representation including both surface data relating to dental tissue in one of the patient's jaws and surface data relating to a scan appliance arranged in relation to the jaw, where the scan appliance is configured for at least partly defining the patient's occlusion.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: October 25, 2022
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Lars Henriksen, Kristian Evers Hansen
  • DETECTING AND MONITORING DEVELOPMENT OF A DENTAL CONDITION
    Publication number: 20220287811
    Abstract: A method, user interface and system for detecting and monitoring development of a dental condition. In particular, detecting and monitoring such a development by comparing digital 3D representations of the patient's set of teeth recorded at a first and a second point in time. For example, determining tooth movement for at least one tooth between the first and second point in time based on derived distances.
    Type: Application
    Filed: June 1, 2022
    Publication date: September 15, 2022
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Henrik John BRANDT, Alen BOGDANIC
  • POWER-ADAPTABLE DEVICE FOR SCANNING A HUMAN INTRA-CAVITY
    Publication number: 20220280020
    Abstract: A device for scanning a human intra-cavity, including a housing including a part connected to the housing, the part dimensioned for being inserted into said human intra-cavity, a single mounting-interface on the housing, the single mounting-interface configured to removably mount an internal power supply unit for powering the device from an internal power supply within the internal power supply unit, or an external power supply unit for powering the device from an external power supply outside the external power supply unit, the device configured for being changed between two power-operation modes.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Applicant: 3SHAPE A/S
    Inventors: Kasper Krogh HANSEN, Troels Böwadt ARNVED, Frederik JUUL
  • DETECTING TOOTH SHADE
    Publication number: 20220265403
    Abstract: Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Applicant: 3SHAPE A/S
    Inventors: Bo ESBECH, Rune FISKER, Lars HENRIKSEN, Tais CLAUSEN
  • DETECTING TOOTH SHADE
    Publication number: 20220265402
    Abstract: Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Applicant: 3SHAPE A/S
    Inventors: Bo ESBECH, Rune FISKER, Lars HENRIKSEN, Tais CLAUSEN
  • INTRAORAL SCANNING APPARATUS
    Publication number: 20220272316
    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Henrik ÖJELUND, Rasmus KJAER, Mike VAN DER POEL, Arish A. QAZI, Karl-Josef HOLLENBECK
  • INTRAORAL SCANNING APPARATUS
    Publication number: 20220272317
    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Henrik ÖJELUND, Rasmus KJAER, Mike VAN DER POEL, Arish A. QAZI, Karl-Josef HOLLENBECK
  • METHOD FOR ALIGNING DIGITAL REPRESENTATIONS OF A PATIENT'S JAWS
    Publication number: 20220218448
    Abstract: A method of aligning two 3D digital representations of at least a part of each of the upper and lower jaw of a patient, the method including segmenting the 3D digital representations to determine the shape and position of each of the patient's teeth in each of the 3D digital representations; and using a set of known anatomical concepts to constrain the fit of the two 3D digital representations to get a preliminary fit.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Sven NONBOE
  • METHOD FOR MANIPULATING 3D OBJECTS BY FLATTENED MESH
    Publication number: 20220222896
    Abstract: A computer-implemented method for generating a corresponding 3D mesh representing a 3D object includes transforming an initial three-dimensional mesh into a planar mesh, wherein each vertex or edge of the planar mesh is a transformation of a vertex or edge from the initial three-dimensional mesh; and sampling the planar mesh to generate a plurality of samples such that each sample comprises a three-dimensional coordinate representing a point in a three-dimensional space derived and/or taken directly from the initial three-dimensional mesh, and a coordinate representing a position of the sample relative to other samples; and generating the sampled matrix based on the plurality of samples; and representing the sampled matrix as a corresponding 3D mesh.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: 3SHAPE A/S
    Inventors: Jens Christian JØRGENSEN, Jens Peter TRÄFF, Alejandro Alonso DIAZ