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    Systems for treatment planning with overcorrection
    34.
    发明授权
    Systems for treatment planning with overcorrection 有权

    公开(公告)号：US12048606B2

    公开(公告)日：2024-07-30

    申请号：US17586543

    申请日：2022-01-27

    Applicant: ALIGN TECHNOLOGY, INC.

    Inventor： Vadim Matov ,  Fuming Wu ,  Anton Terekhov ,  Tzishing Jesse Lim ,  Jihua Cheng ,  John Morton

    IPC: A61C7/00 ,  A61C7/08 ,  G06F30/00

    CPC classification number: A61C7/002 ,  A61C7/08 ,  G06F30/00

    Abstract: Orthodontic systems and related methods are disclosed for designing and providing improved or more effective tooth moving systems for eliciting a desired tooth movement and/or repositioning teeth into a desired arrangement. Methods and orthodontic systems include the generation of an overcorrection in the tooth-receiving cavities of an appliance worn in the dentition. The overcorrection may provide an improved and more accurately applied force or moment applied to a tooth. The overcorrected force or moment can move a tooth closer to a desired position than if not overcorrected as sufficient force can still applied to the tooth as it gets closer to the desired position. The overcorrected force or moment may also better target the root of the tooth where the biological response to tooth movement occurs. The overcorrection may be calculated in various ways as described herein.

    THREE-DIMENSIONAL TOOTH MODELING USING A TWO-DIMENSIONAL X-RAY IMAGE
    35.
    发明公开
    THREE-DIMENSIONAL TOOTH MODELING USING A TWO-DIMENSIONAL X-RAY IMAGE 审中-公开

    公开(公告)号：US20230390033A1

    公开(公告)日：2023-12-07

    申请号：US18297590

    申请日：2023-04-07

    Applicant: Align Technology, Inc.

    Inventor： Fuming Wu ,  Vadim Matov ,  Jihua Cheng

    IPC: A61C13/00 ,  A61C7/00 ,  G16Z99/00

    CPC classification number: A61C13/0004 ,  A61C7/002 ,  G06F30/00 ,  A61C2007/004 ,  G16Z99/00

    Abstract: A scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth is generated. The scan model uses an initial estimate of one or more parameters of the x-ray imaging device. The one or more parameters include a scan angle parameter indicative of a scan angle of the x-ray imaging device. A two-dimensional contour of a three-dimensional model is adjusted to cause a first component of the two-dimensional contour to approximately align with a second component of the two-dimensional x-ray image. The scan model is calibrated based on data obtained from adjusting the two-dimensional contour.

    Three-dimensional tooth modeling using a two-dimensional x-ray image
    38.
    发明授权
    Three-dimensional tooth modeling using a two-dimensional x-ray image 有权

    公开(公告)号：US11013582B2

    公开(公告)日：2021-05-25

    申请号：US16113018

    申请日：2018-08-27

    Applicant: Align Technology, Inc.

    Inventor： Fuming Wu ,  Vadim Matov ,  Jihua Cheng

    IPC: A61C13/00 ,  G16Z99/00 ,  A61C7/00 ,  G06F30/00

    Abstract: A method and system generate a scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth. The scan model uses an initial estimate of one or more parameters of the x-ray imaging device to simulate the imaging process on a three-dimensional model. The method and system generate the two-dimensional contour of the three-dimensional model based on the scan model that uses the initial estimate of the one or more parameters of the x-ray imaging device. The method and system adjust the two-dimensional contour to cause a first component of the two-dimensional contour to approximately align with a second component of the two-dimensional x-ray image. The method and system calibrate the scan model based on data obtained from adjusting the two-dimensional contour.

    SYSTEMS AND METHODS FOR NONLINEAR TOOTH MODELING
    40.
    发明申请
    SYSTEMS AND METHODS FOR NONLINEAR TOOTH MODELING 审中-公开

    公开(公告)号：US20200214800A1

    公开(公告)日：2020-07-09

    申请号：US16730865

    申请日：2019-12-30

    Applicant: Align Technology, Inc.

    Inventor： Vadim Matov ,  Sergei Brodsky ,  Bastien Pesenti ,  Yuri Syrov ,  Ping Tang ,  Manlio Valdivieso ,  Olga Matusevich ,  Igor Kvasov

    IPC: A61C7/00 ,  A61C7/08 ,  G06T17/20 ,  G16H20/00

    Abstract: Systems and methods of generating an orthodontic model are disclosed. The method may include: generating an initial model of a patient dentition; generating a target model of the patient dentition; defining a plurality of caps and a plurality of links, wherein each link connects two of the plurality of caps; generating a relaxed model of a dental appliance from the plurality of caps and the plurality of links; generating a deformed model of a dental appliance from the plurality of caps and plurality of links; and determining a plurality of movements, wherein the plurality of moments transform the relaxed model to the deformed model and wherein the moments are configured to direct the patient dentition from the initial model to the target model.

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