DENTAL PREPARATION GUIDE
    1.
    发明公开

    公开(公告)号:US20230293261A1

    公开(公告)日:2023-09-21

    申请号:US18298823

    申请日:2023-04-11

    申请人: 3SHAPE A/S

    摘要: 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.

    Dental preparation guide
    3.
    发明授权

    公开(公告)号:US11653998B2

    公开(公告)日:2023-05-23

    申请号:US17897950

    申请日:2022-08-29

    申请人: 3SHAPE A/S

    摘要: 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.

    Detecting tooth shade
    4.
    发明授权

    公开(公告)号:US11589965B2

    公开(公告)日:2023-02-28

    申请号:US17742955

    申请日:2022-05-12

    申请人: 3SHAPE A/S

    摘要: 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.

    Focus scanning apparatus
    5.
    发明授权

    公开(公告)号:US11076146B1

    公开(公告)日:2021-07-27

    申请号:US17206581

    申请日:2021-03-19

    申请人: 3SHAPE A/S

    摘要: 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.

    Dental preparation guide
    6.
    发明授权

    公开(公告)号:US10918458B2

    公开(公告)日:2021-02-16

    申请号:US16208719

    申请日:2018-12-04

    申请人: 3Shape A/S

    摘要: 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.

    3D system and method for guiding objects

    公开(公告)号:US10716634B2

    公开(公告)日:2020-07-21

    申请号:US16729537

    申请日:2019-12-30

    申请人: 3SHAPE A/S

    摘要: An intraoral 3D scanner includes a probe light source configured to generate a probe light such that the probe light is transmitted towards the dental situation; a camera including an array of sensor elements, the camera being arranged such that the probe light from the dental situation is transmitted to the array of sensor elements, wherein the camera is configured to create images of the dental situation from which a point cloud is generated, and a guiding system configured to guide relative movement of the intraoral 3D scanner towards the dental situation, wherein the camera is part of the guiding system, the camera is configured to record images from which a relative position of the intraoral 3D scanner and the dental situation is determined, such that based on the relative position, the guiding system is configured to provide a positioning signal in the form of a positioning color code.

    Facebow and method of using a facebow

    公开(公告)号:US10561479B2

    公开(公告)日:2020-02-18

    申请号:US15508716

    申请日:2015-09-03

    IPC分类号: A61C11/00 A61C19/045

    摘要: Disclosed is a method for determining the geometrical relationship between a patient's dental structure and a reference feature on the head of the patient, the method including obtaining a first digital representation of a facebow including a fiducial marker, an adjustable pin member attached to the facebow and an attachment section of the facebow for placing the facebow in relation to the reference feature, the attachment section having a geometrical relationship with the fiducial marker; obtaining a second digital representation comprising a part of the patient's dental structure, a part of the pin member, and part of the facebow including the fiducial marker; obtaining information about the placement of the attachment section relative to the reference feature; and determining the geometrical relationship between the patient's dental structure and the reference feature based on the first and second digital representations and the placement of the attachment section.

    Virtual design of attachment of dental model in articulator

    公开(公告)号:US10552549B2

    公开(公告)日:2020-02-04

    申请号:US14349774

    申请日:2012-10-05

    申请人: 3Shape A/S

    摘要: A method for virtually designing the attachment of a manufactured dental model of a patient's set of teeth in a physical dental articulator by one or more kinds of spacer elements, where the method includes obtaining a virtual 3D dental model, providing a virtual dental articulator, where the height of the dental model is the height of an upper part and the height of a lower part of the dental model; providing one or more kinds of virtual spacer elements with predetermined heights, determining a manufacture height of the dental model and determining the number of each of the kinds of spacer elements to be used for the attachment of the manufactured dental model in the physical articulator, such that the manufacture height of the dental model and the total effective spacer element height, equals the articulator height.

    3D system and method for guiding objects

    公开(公告)号:US10299865B2

    公开(公告)日:2019-05-28

    申请号:US15685417

    申请日:2017-08-24

    申请人: 3Shape A/S

    摘要: A method for providing a guided relative movement of a first object and a second object includes obtaining the first object; obtaining the second object and a 3D model of the second object, and deriving from the 3D model a first preferred relative arrangement between the first and second objects; obtaining a pre-process plan describing a preferred path for the relative movement of the first and second objects towards the first preferred relative arrangement; performing a movement procedure that includes 3D scanning at least a region of said second object using the 3D scanner and determining a present relative arrangement of the first and second objects from a result of the 3D scanning; calculating information for correcting in real-time for deviation in the relative movement from the preferred path; and providing a relative movement of the first and second objects towards the first preferred relative arrangement.