公开(公告)号：US10653503B2

公开(公告)日：2020-05-19

申请号：US15943476

申请日：2018-04-02

Applicant: Align Technology, Inc.

Inventor： Anatoliy Boltunov ,  Yury Brailov ,  Fedor Chelnokov ,  Roman Roschin ,  David Mason

IPC: A61C7/00 ,  G16B5/00 ,  G06T19/20 ,  G06T7/30 ,  G06T7/70 ,  A61C7/08 ,  A61C9/00 ,  G06T17/00

Abstract: Embodiments are provided for digital dental modeling. One method embodiment includes receiving a three-dimensional data set including a first jaw and a second jaw of a three-dimensional digital dental model and receiving a two-dimensional data set corresponding to at least a portion of the first jaw and the second jaw. The method includes mapping two-dimensional data of the two-dimensional data set to the three-dimensional digital dental model by transforming a coordinate system of the two-dimensional data to a coordinate system of the three-dimensional data set. The method includes positioning the first jaw with respect to the second jaw based on the two-dimensional data mapped to the three-dimensional data set. The method includes using at least a portion of the two-dimensional data mapped to the three-dimensional data set as a target of movement of the first jaw with respect to the second jaw in the three-dimensional digital dental model.

公开(公告)号：US20200147887A1

公开(公告)日：2020-05-14

申请号：US16514908

申请日：2019-07-17

Applicant: Align Technology, Inc.

Inventor： Avi Kopelman ,  Eldad Taub

IPC: B29C64/386 ,  G06F30/00 ,  A61C13/00 ,  G05B19/4097 ,  A61C13/20 ,  A61C13/09 ,  A61C5/77

Abstract: A dental prosthesis is made by externally machining successive layers of wax, each of which is formed on a previous prosthesis layer and/or on a coping. Each wax layer is used to form a mold in situ over the previous prosthesis layer/coping, and the appropriate prosthesis material is cast or otherwise molded to conform to the wax layer by the mold.

公开(公告)号：US20200146776A1

公开(公告)日：2020-05-14

申请号：US16741624

申请日：2020-01-13

Applicant: Align Technology, Inc.

Inventor： Vadim MATOV ,  Jihua CHENG ,  Fuming WU ,  Kenji TAN

IPC: A61C7/00 ,  G06F17/11 ,  G06T17/20 ,  G06F30/20

Abstract: Methods and systems for generating a three-dimensional occlusogram are disclosed. One method includes determining a virtual three dimensional (3D) mesh model object of at least one tooth of a patient and displaying the determined virtual 3D mesh model object of at least one tooth of a patient wherein the 3D mesh model object includes a plurality of data sets associated with a set of occlusal information for the at least one tooth of the patient.

公开(公告)号：US10606911B2

公开(公告)日：2020-03-31

申请号：US16188262

申请日：2018-11-12

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal

IPC: G06T7/55 ,  H04N13/271 ,  G06T17/00 ,  G06T7/73 ,  H04N13/257 ,  H04N13/254 ,  A61B1/24 ,  A61B5/00 ,  A61C9/00 ,  G06T15/08 ,  H04N13/246 ,  H04N13/221 ,  G06F16/9535 ,  G06Q50/00

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

公开(公告)号：US10603136B2

公开(公告)日：2020-03-31

申请号：US16435348

申请日：2019-06-07

Applicant: Align Technology, Inc.

Inventor： Avi Kopelman ,  Michael Sabina

IPC: A61B6/00 ,  A61C5/77 ,  A61B1/00 ,  A61B1/24 ,  G06T1/00 ,  G06T7/13 ,  A61C9/00 ,  G06T15/20 ,  G06T17/00 ,  G06T3/00

Abstract: A method includes receiving first intraoral scan data of an intraoral site, the first intraoral scan data having been generated at a first time, receiving second intraoral scan data of the intraoral site, the second intraoral scan data having been generated at a second time that is later than the first time, and analyzing the second intraoral scan data of the intraoral site relative to the first intraoral scan data of the intraoral site. The method further includes identifying an area of interest (AOI) based on the analyzing and removing data for the AOI from at least one of the first intraoral scan data, the second intraoral scan data, or a three-dimensional (3D) model of the intraoral site generated from the first intraoral scan data and the second intraoral scan data.

公开(公告)号：US10600160B2

公开(公告)日：2020-03-24

申请号：US16389323

申请日：2019-04-19

Applicant: Align Technology, Inc.

Inventor： Adi Levin

IPC: G06T5/00 ,  A61C9/00 ,  G06T7/20 ,  A61B1/24 ,  A61B6/14 ,  G06T7/38

Abstract: The present disclosure provides computing device implemented methods, computing device readable media, and systems for motion compensation in a three dimensional scan. Motion compensation can include receiving three-dimensional (3D) scans of a dentition, estimating a motion trajectory from one scan to another, and calculating a corrected scan by compensating for the motion trajectory. Estimating the motion trajectory can include one or more of: registering a scan to another scan and determining whether an amount of movement between the scans is within a registration threshold; determining an optical flow based on local motion between consecutive two-dimensional (2D) images taken during the scan, estimating and improving a motion trajectory of a point in the scan using the optical flow; and estimating an amount of motion of a 3D scanner during the scan as a rigid body transformation based on input from a position tracking device.

公开(公告)号：US20200086553A1

公开(公告)日：2020-03-19

申请号：US16571029

申请日：2019-09-13

Applicant: Align Technology, Inc.

Inventor： Mehdi Mojdeh ,  Michael Christopher Cole ,  Peter Dorfinger ,  Shiva P. Sambu

IPC: B29C64/118 ,  B29C64/188 ,  B29C64/307 ,  B29C64/245 ,  B29C64/209 ,  B29C64/295 ,  B29C64/264 ,  B29C64/232

Abstract: A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional digital file to cure a portion of the first layer, wherein the cured portion of the first layer has a second shape, wherein the second shape may comprise features that are smaller than the first shape.

公开(公告)号：US20200078138A1

公开(公告)日：2020-03-12

申请号：US16680333

申请日：2019-11-11

Applicant: Align Technology, Inc.

Inventor： Chunhua LI ,  Yan CHEN

IPC: A61C7/08

Abstract: Embodiments are provided for forming a patterned dental positioning appliance. One method includes forming a virtual shell shaped to receive one or more teeth of a virtual model of a patient's dentition, and digitally applying a pattern on an inner surface within cavities of the virtual shell, where the pattern contacts at least a portion of the one or more teeth and modifies repositioning forces exerted on the one or more teeth. In some cases the pattern is a raised pattern, such as a raised mesh pattern. In forming the dental appliance, in some cases, the shell and the pattern are formed of the same material to form a unitary piece of the polymer material.

公开(公告)号：US10568717B2

公开(公告)日：2020-02-25

申请号：US15216171

申请日：2016-07-21

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Loc X. Phan ,  Peter G. Knopp ,  Eric E. Kuo ,  Amir Abolfathi ,  Huafeng Wen

IPC: A61C7/14 ,  A61C13/00 ,  A61C7/00 ,  B33Y50/02 ,  B33Y80/00 ,  B29C64/135 ,  B29L31/00

Abstract: A dental template to position an object on a patient's tooth includes digitizing the patient's tooth; adding virtual objects to predetermined locations on the digitized tooth; and fabricating the dental template to locate the object on the patient's tooth. The template can be used for etching or for positioning brackets on teeth.

公开(公告)号：US10561476B2

公开(公告)日：2020-02-18

申请号：US15392729

申请日：2016-12-28

Applicant: Align Technology, Inc.

Inventor： Vadim Matov ,  Jihua Cheng ,  Fuming Wu ,  Kenji Tan

IPC: G06F17/50 ,  A61C7/00 ,  G06T17/20 ,  G06F17/11

Abstract: Methods and systems for generating a three-dimensional occlusogram are disclosed. One method includes determining a virtual three dimensional (3D) mesh model object of at least one tooth of a patient and displaying the determined virtual 3D mesh model object of at least one tooth of a patient wherein the 3D mesh model object includes a plurality of data sets associated with a set of occlusal information for the at least one tooth of the patient.