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    APPARATUS FOR DENTAL IMAGING
    216.
    发明申请
    APPARATUS FOR DENTAL IMAGING 有权

    公开(公告)号：US20210186335A1

    公开(公告)日：2021-06-24

    申请号：US17191579

    申请日：2021-03-03

    Applicant: Align Technology, Inc.

    Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

    IPC: A61B5/00 ,  G02B13/16 ,  G02B6/26 ,  F21V8/00 ,  G01B11/24 ,  G01B11/245 ,  A61C9/00 ,  G02B5/04 ,  G02B23/24

    Abstract: An apparatus for dental imaging comprises a light source for generating light, an optics system for focusing the light, and a probe head. The light source, the optics system and the probe head are arranged such that the light passes through the optics system, passes through the probe head, and exits the probe head. The optics system is configured such that, upon entering the probe head, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

    Photograph-based assessment of dental treatments and procedures
    217.
    发明授权
    Photograph-based assessment of dental treatments and procedures 有权

    公开(公告)号：US11042774B2

    公开(公告)日：2021-06-22

    申请号：US16370788

    申请日：2019-03-29

    Applicant: Align Technology, Inc.

    Inventor： Artem Borovinskih ,  Mitra Derakhshan ,  Carina Koppers ,  Eric Meyer ,  Ekaterina Tolstaya ,  Yury Brailov

    IPC: G06K9/62 ,  G06T5/20 ,  A61C7/00 ,  G06T7/00 ,  G06T7/32 ,  G06T7/136

    Abstract: The current document is directed to methods and systems for monitoring a dental patient's progress during a course of treatment. A three-dimensional model of the expected positions of the patient's teeth can be projected, in time, from a three-dimensional model of the patient's teeth prepared prior to beginning the treatment. A digital camera is used to take one or more two-dimensional photographs of the patient's teeth, which are input to a monitoring system. The monitoring system determines virtual-camera parameters for each two-dimensional input image with respect to the time-projected three-dimensional model, uses the determined virtual-camera parameters to generate two-dimensional images from the three-dimensional model, and then compares each input photograph to the corresponding generated two-dimensional image in order to determine how closely the three-dimensional arrangement of the patient's teeth corresponds to the time-projected three-dimensional arrangement.

    FILLING UNDERCUT AREAS OF TEETH RELATIVE TO AXES OF APPLIANCE PLACEMENT
    219.
    发明申请
    FILLING UNDERCUT AREAS OF TEETH RELATIVE TO AXES OF APPLIANCE PLACEMENT 有权

    公开(公告)号：US20210177547A1

    公开(公告)日：2021-06-17

    申请号：US17181693

    申请日：2021-02-22

    Applicant: Align Technology, Inc.

    Inventor： Eric E. KUO

    IPC: A61C7/00 ,  A61C7/08 ,  A61C9/00 ,  G16H50/50

    Abstract: The present disclosure provides computing device implemented methods, computing device readable medium, and molds for filling undercut areas of teeth relative to an axis of placement. Filling undercut areas of teeth relative to an axis of placement can include calculating an undercut area of a tooth relative to an axis of placement of part of a dental appliance over a number of teeth and a height of contour that is defined based on the axis of placement. Filling undercut areas of teeth relative to an axis of placement can also include filling in a part of the undercut area of the tooth with a virtual filler wherein the undercut is filled to within a threshold distance from the tooth that is defined relative to the axis of placement and the height of contour.

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