Patents Assigned to 3Shape A/S
  • Publication number: 20250254285
    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: April 25, 2025
    Publication date: August 7, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Henrik ÖJELUND, Rasmus KJÆR, Mike VAN DER POEL, Arish A. QAZI, Karl-Josef HOLLENBECK
  • Publication number: 20250228648
    Abstract: The present disclosure relates to an intraoral scanning device for scanning a dental object, the scanning device including an elongated probe defining a longitudinal axis of the scanning device; one or more scan units, each scan unit including: at least one projector unit configured to project a light pattern onto a surface of the dental object, wherein the projector unit defines a projector optical axis; and at least one camera including an image sensor for acquiring images, wherein the at least one camera defines a camera optical axis, wherein at least one of the scan units further includes a reflecting element, wherein each scan unit defines a field of view. In particular, the present disclosure relates to an intraoral scanning device having an extended field of view.
    Type: Application
    Filed: April 5, 2023
    Publication date: July 17, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rasmus KJÆR, Henrik ÖJELUND
  • Publication number: 20250221800
    Abstract: The present disclosure relates to systems and methods for generating a digital representation of a three-dimensional (3D) object. In particular, the disclosure relates to a dental scanning system for acquiring images of the object and for generating the digital representation of the object. One embodiment relates to a dental scanning system for scanning a dental object, comprising an intraoral 3D scanning device comprising at least one projector unit configured to project a light pattern along a projector optical axis, the light pattern comprising a plurality of pattern features; one or more cameras having at least partly overlapping fields of view along different camera optical axes (and along the projector optical axis), each of the cameras comprising an image sensor, wherein the system further comprises one or more processors configured to generate a digital three-dimensional representation of the dental object based on triangulation.
    Type: Application
    Filed: March 31, 2023
    Publication date: July 10, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rasmus KJÆR, Henrik ÖJELUND, Karsten Bjerrum DIDERIKSEN, Isak MOTTELSON
  • Patent number: 12350127
    Abstract: A method for generating a digital 3D representation of at least a part of an intraoral cavity, the method including recording a plurality of views containing surface data representing at least the geometry of surface points of the part of the intraoral cavity using an intraoral scanner; determining a weight for each surface point at least partly based on scores that are measures of belief of that surface point representing a particular type of surface; executing a stitching algorithm that performs weighted stitching of the surface points in said plurality of views to generate the digital 3D representation based on the determined weights; wherein the scores for the surface points are found by at least one score-finding algorithm that takes as input at least the geometry part of the surface data for that surface point and surface data for points in a neighbourhood of that surface point.
    Type: Grant
    Filed: March 18, 2024
    Date of Patent: July 8, 2025
    Assignee: 3SHAPE A/S
    Inventors: Henrik Öjelund, Asger Vejen Hoedt, Karl-Josef Hollenbeck
  • Patent number: 12355936
    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: December 6, 2024
    Date of Patent: July 8, 2025
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Henrik Öjelund, Rasmus Kjær, Mike Van Der Poel, Arish A. Qazi, Karl-Josef Hollenbeck
  • Publication number: 20250213333
    Abstract: A method for manufacturing/producing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a computer-aided design (CAD design) of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable/free/accessible; and performing post-processing of the outside surface of the restoration.
    Type: Application
    Filed: March 17, 2025
    Publication date: July 3, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Sven NONBOE, David FISCHER
  • Publication number: 20250213341
    Abstract: A system for measuring a depth of a periodontal pocket defined by a gap between a tooth and gingiva includes a frame, one camera, and a processor. The frame is configured to be worn by a user. The camera is configured to capture at least one 2D image of an intraoral target area. The at least one 2D image includes a representation of at least a part of the tooth, a gingiva margin defined by a section of the gingiva adjacent to the at least a part of the tooth, and a probe tip when the probe tip is inserted into the periodontal pocket. The processor is configured to receive the captured at least one 2D image and to determine an insertion length of the probe tip in the periodontal pocket. The determined insertion length represents the depth of the periodontal pocket.
    Type: Application
    Filed: December 24, 2024
    Publication date: July 3, 2025
    Applicant: 3SHAPE A/S
    Inventors: Mike VAN DER POEL, Astrid BIRCH, Michael VINTHER, Sonal Sharad PATIL, Steen Frost TOFTHØJ
  • Patent number: 12343237
    Abstract: Disclosed is a system and method for presenting a graphical representation of an oral situation of a patient over time. In particular the system and method relates to a method of presenting a plurality of scans taken over time in manner where the focus on the changes in the oral situation of the patient is maintained.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: July 1, 2025
    Assignee: 3SHAPE A/S
    Inventors: Alen Bogdanic, Admir Huseini, Daniella Alalouf
  • Publication number: 20250205011
    Abstract: Disclosed herein is method for designing a dental prosthesis and a positioning guide for placing the dental prosthesis on implants in the jaw while maintain proper occlusion. In particular the method relates to a method for designing the dental prosthesis and the positioning guide prior to implant placement. Accordingly, the disclosure relates to a method and a kit of components suited for one-day implant surgery thereby reducing the time the patient spend in the dentist chair.
    Type: Application
    Filed: March 12, 2025
    Publication date: June 26, 2025
    Applicant: 3SHAPE A/S
    Inventors: Birk Plönnigs, Rune FISKER
  • Publication number: 20250194933
    Abstract: According to an embodiment, a computer implemented method and a scanner system are disclosed. The computer implemented method for updating a current digital 3D scan representing the surface of a physical object with an at least one new 3D scan, where the updating of the current digital 3D scan provides an updated digital 3D scan representation of the surface of the physical object is disclosed. The computer implemented method may comprise obtaining the current digital 3D scan, obtaining the at least one new digital 3D scan, determining an inconsistent digital 3D scan, where at least a part of the new digital 3D scan does not overlap with at least a part of the current digital 3D scan, and creating the updated digital 3D scan, which represent the physical object by applying the inconsistent digital 3D scan to the current digital 3D scan.
    Type: Application
    Filed: March 15, 2023
    Publication date: June 19, 2025
    Applicant: 3SHAPE A/S
    Inventor: Asger Vejen HOEDT
  • Patent number: 12335456
    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: April 5, 2024
    Date of Patent: June 17, 2025
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Henrik Öjelund, Rasmus Kjær, Mike Van Der Poel, Arish A. Qazi, Karl-Josef Hollenbeck
  • Publication number: 20250182295
    Abstract: A method includes obtaining a first and a second tooth digital representation of a tooth; subdividing each of the representations into two sub-regions; applying an alignment process for aligning a sub-region of the first digital representation with a sub-region of the second digital representation, wherein the sub-region of the first digital representation and the corresponding sub-region of the second digital representation correspond to a part of the tooth; and aligning the first representation to the second representation. A system for acquisition and processing of a tooth digital representation includes one input peripheral configured to generate image data of a jaw or a tooth; one output peripheral configured to display one digital representation of jaw or teeth and to provide visual data of the quality of the digital representation alignment; and one processing unit configured to generate digital representations of jaws or teeth and perform alignment of teeth.
    Type: Application
    Filed: March 13, 2023
    Publication date: June 5, 2025
    Applicant: 3SHAPE A/S
    Inventor: Admir HUSEINI
  • Patent number: 12322043
    Abstract: Disclosed is a method of storing information in a mesh, including tessellating a plurality of input patches of the mesh, serializing vertices of the tessellated input patches, calculating a value for each vertex, serializing the values according to the serialization of the vertices; and storing the serialized values.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 3, 2025
    Assignee: 3SHAPE A/S
    Inventors: Marek Krzysztof Misztal, Henrik Öjelund, Zenjie Li
  • Publication number: 20250160616
    Abstract: According to an embodiment, a dental scanning system and a computer implemented method of generating a training set for a machine learning model are disclosed. According to a further embodiment, a dental scanning system and a computer implemented method for providing a diagnostic data set of a patient are disclosed.
    Type: Application
    Filed: February 15, 2023
    Publication date: May 22, 2025
    Applicant: 3SHAPE A/S
    Inventors: Stavroula MICHOU, Mathias Schärfe LAMBACH, Pia Elisabeth NØRRISGAARD, Peter SØNDERGAARD, Christoph VANNAHME
  • Publication number: 20250143575
    Abstract: Detecting a movable object in a location includes providing a first 3D representation of at least part of a surface; providing a second 3D representation of at least part of the surface; determining for the first 3D representation a first excluded volume in space where no surface can be present; determining for the second 3D representation a second excluded volume in space where no surface can be present; if a portion of the surface in the first 3D representation is located in space in the second excluded volume, the portion of the surface in the first 3D representation is disregarded in the generation of the virtual 3D model, and/or if a portion of the surface in the second 3D representation is located in space in the first excluded volume, the portion of the surface in the second 3D representation is disregarded in the generation of the virtual 3D model.
    Type: Application
    Filed: September 13, 2024
    Publication date: May 8, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Michael VINTHER, Henrik ÖJELUND
  • Publication number: 20250134634
    Abstract: A method of designing a virtual 3D model of a dental restoration for a target site of a patient's set of teeth, the method including: obtaining a digital 3D representation of the set of teeth, the digital 3D representation including a section corresponding to the target site; determining an insertion path for the dental restoration to the target site; and designing the virtual 3D model of the dental restoration based on the digital 3D representation of the set of teeth, where the designing includes generating an outer surface of the virtual 3D model, where the determined insertion path and the outer surface of the designed virtual 3D model provide that a dental restoration manufactured from the designed virtual 3D model can be moved along the insertion path to the target site.
    Type: Application
    Filed: November 19, 2024
    Publication date: May 1, 2025
    Applicant: 3SHAPE A/S
    Inventors: Rune FISKER, Sven NONBOE
  • Patent number: 12279928
    Abstract: A method for manufacturing/producing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a computer-aided design (CAD design) of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable/free/accessible; and performing post-processing of the outside surface of the restoration.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: April 22, 2025
    Assignee: 3SHAPE A/S
    Inventors: Rune Fisker, Sven Nonboe, David Fischer
  • Publication number: 20250120793
    Abstract: A computer-implemented method for improving the accuracy of a three-dimensional (3D) representation of a jaw, the method including obtaining a first digital 3D representation of at least a part of a first jaw; obtaining a second digital 3D representation of at least a part of a second jaw; combining several 3D frames generated for a number of different views of the jaws in occlusion, wherein each 3D frame includes data expressing the geometry of at least a part of the jaws in occlusion; and correcting the first digital 3D representation by adjusting the position of one or more surface points belonging to the first digital 3D representation based on the position of 3D frames associated with the third digital 3D representation, whereby the accuracy of the first digital 3D representation is improved.
    Type: Application
    Filed: October 9, 2024
    Publication date: April 17, 2025
    Applicant: 3SHAPE A/S
    Inventor: Asger Vejen HOEDT
  • Publication number: 20250120589
    Abstract: Disclosed are methods and digital tools for deriving tooth condition information for a patient's teeth, for populating a digital dental chart with derived tooth condition information, and for generating an electronic data record containing such information.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 17, 2025
    Applicant: 3SHAPE A/S
    Inventors: Mike VAN DER POEL, Rune FISKER, Karl-Josef HOLLENBECK
  • Patent number: 12274590
    Abstract: Disclosed herein is method for designing a dental prosthesis and a positioning guide for placing the dental prosthesis on implants in the jaw while maintain proper occlusion. In particular the method relates to a method for designing the dental prosthesis and the positioning guide prior to implant placement. Accordingly, the disclosure relates to a method and a kit of components suited for one-day implant surgery thereby reducing the time the patient spend in the dentist chair.
    Type: Grant
    Filed: October 10, 2023
    Date of Patent: April 15, 2025
    Assignee: 3SHAPE A/S
    Inventors: Birk Plönnigs, Rune Fisker