公开(公告)号：US11992382B2

公开(公告)日：2024-05-28

申请号：US17411984

申请日：2021-08-25

Applicant: Align Technology, Inc.

Inventor： Israel Velazquez ,  Andrey Cherkas ,  Stephan Albert Alexandre Dumothier ,  Anatoliy Parpara ,  Alexey Geraskin ,  Yury Slynko ,  Danila Chesnokov

IPC: G06T15/00 ,  A61C7/00 ,  G06T5/70 ,  G06T17/20 ,  G06T19/00 ,  G16H50/50

CPC classification number: A61C7/002 ,  G06T5/70 ,  G06T17/20 ,  G06T17/205 ,  G06T19/00 ,  A61C2007/004 ,  G06T2207/30036 ,  G06T2210/36 ,  G06T2210/41 ,  G06T2210/56 ,  G16H50/50

Abstract: A virtual filler is inserted in a virtual model of a dental site between a first tooth and a second tooth in the virtual model. One or more of the first tooth or the second tooth represent a natural tooth of a patient. Points of the first tooth, the second tooth and the virtual filler are transformed into a voxel volume. A geometry of an updated virtual filler is determined by transforming a surface of the voxel volume into a polygonal mesh.

公开(公告)号：US11631176B2

公开(公告)日：2023-04-18

申请号：US17699015

申请日：2022-03-18

Applicant: Align Technology, Inc.

Inventor： Anatoliy Parpara ,  Ivan Kharpalev ,  Stephan Albert Alexandre Dumothier ,  Andrey Cherkas ,  Alexey Kalinichenko ,  Jack Shaw ,  Israel Velazquez

IPC: G06T7/00 ,  A61C7/00 ,  A61C13/00 ,  G01N21/956 ,  B33Y50/02 ,  B33Y80/00 ,  B29C64/393 ,  A61C7/08 ,  B29C33/38 ,  B29C51/26 ,  B29C51/46 ,  G06T7/521 ,  G06T17/10 ,  B33Y10/00 ,  B33Y30/00 ,  B29L31/00

Abstract: A method includes obtaining image(s) of a dental device, determining file(s) including at least one of a first model of the dental device or a second model of a mold, determining an intended property for the dental device based on at least one of the first model or the second model, and determining an actual property of the dental device from the image(s). The method further includes determining whether a cutline variation, an arch variation, and/or a bend of the dental device is detected between the dental device and the first model and/or the second model by comparing the intended property with the actual property. The method further includes determining whether there is a possible defect in the dental device based on whether the cutline variation exceeds a cutline variation threshold, the arch variation exceeds an arch variation threshold, and/or the bend exceeds a bend threshold.

公开(公告)号：US20220172364A1

公开(公告)日：2022-06-02

申请号：US17673711

申请日：2022-02-16

Applicant: Align Technology, Inc.

Inventor： Andrey Cherkas ,  Danila Chesnokov ,  Anatoliy Parpara

IPC: G06T7/00 ,  A61C7/08 ,  A61C7/00 ,  G06T7/11 ,  G06T7/38 ,  G06T7/32 ,  G06T17/20 ,  G06T5/00 ,  G06T7/136

Abstract: Multiple techniques for detecting defects in customized dental appliances are disclosed. In one technique, processing logic obtains one or more images of a customized dental appliance, obtains a digital model associated with the customized dental appliance, and identifies an area of the one or more images that comprises a representation of the customized dental appliance. Processing logic then registers the one or more images to the digital model, compares the area of the one or more images of the customized dental appliance with the digital model of the customized dental appliance, determines a difference between the area of the one or more images that comprises the representation of the customized dental appliance and the digital model of the customized dental appliance at a region, and determines whether the difference satisfies a defect criterion.

公开(公告)号：US11304779B2

公开(公告)日：2022-04-19

申请号：US17220807

申请日：2021-04-01

Applicant: Align Technology, Inc.

Inventor： Anatoliy Parpara ,  Ivan Kharpalev ,  Stephan Albert Alexandre Dumothier ,  Andrey Cherkas ,  Alexey Kalinichenko ,  Jack Shaw ,  Israel Velazquez

IPC: A61C7/00 ,  B33Y50/02 ,  B29C64/393 ,  A61C7/08 ,  B33Y80/00 ,  B29C33/38 ,  B29C51/46 ,  B29C51/26 ,  B29L31/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method for manufacturing an orthodontic aligner includes printing a mold associated with a dental arch of a patient based on a digital model of the mold, forming the orthodontic aligner over the mold, and trimming the orthodontic aligner. The method further includes assessing a quality of the orthodontic aligner by receiving a digital representation of the orthodontic aligner, the digital representation having been generated based on imaging of the orthodontic aligner, analyzing the digital representation of the orthodontic aligner to identify a quality-related property of the orthodontic aligner, determining, based on the quality-related property, that the orthodontic aligner comprises a manufacturing flaw, and classifying the orthodontic aligner as requiring further inspection by a technician based on determining that the orthodontic aligner comprises the manufacturing flaw.

公开(公告)号：US11295444B2

公开(公告)日：2022-04-05

申请号：US16837954

申请日：2020-04-01

Applicant: Align Technology, Inc.

Inventor： Andrey Cherkas ,  Danila Chesnokov ,  Anatoliy Parpara

IPC: G06K9/00 ,  G06T7/00 ,  A61C7/08 ,  A61C7/00 ,  G06T7/11 ,  G06T7/38 ,  G06T7/32 ,  G06T17/20 ,  G06T5/00 ,  G06T7/136 ,  B33Y80/00

Abstract: Multiple techniques for detecting defects in customized dental appliances are disclosed. In one technique, processing logic obtains one or more images of a customized dental appliance, obtains a digital model associated with the customized dental appliance, and performs segmentation on the one or more images to identify an area of the one or more images that comprises a representation of the customized dental appliance. Processing logic then registers the one or more images to the digital model, compares the area of the one or more images of the customized dental appliance with the digital model of the customized dental appliance, determines a difference between the area of the one or more images that comprises the representation of the customized dental appliance and the digital model of the customized dental appliance at a region, and determines whether the difference satisfies a defect criterion.

公开(公告)号：US10970839B2

公开(公告)日：2021-04-06

申请号：US16937512

申请日：2020-07-23

Applicant: Align Technology, Inc.

Inventor： Anatoliy Parpara ,  Ivan Kharpalev ,  Stephan Albert Alexandre Dumothier ,  Andrey Cherkas ,  Alexey Kalinichenko ,  Jack Shaw ,  Israel Velazquez

IPC: G06K9/00 ,  G06T7/00 ,  A61C7/00 ,  A61C13/00 ,  G01N21/956 ,  G06T7/521 ,  G06T17/10

Abstract: A method for analyzing a quality of an orthodontic aligner is described. The method includes receiving, by a processor, a digital representation of a fabricated orthodontic aligner, the digital representation having been generated based on imaging of the fabricated orthodontic aligner. The method further includes analyzing, by the processor, the digital representation of the fabricated orthodontic aligner to identify a quality-related property of the fabricated orthodontic aligner. The method further includes determining, based on the quality-related property, that the fabricated orthodontic aligner comprises a manufacturing flaw. The method further includes classifying, by the processor, the fabricated orthodontic aligner as requiring further inspection by a technician based on determining that the fabricated orthodontic aligner comprises the manufacturing flaw.

公开(公告)号：US20200160497A1

公开(公告)日：2020-05-21

申请号：US16685848

申请日：2019-11-15

Applicant: Align Technology, Inc.

Inventor： Paren Indravadan Shah ,  Anatoliy Parpara ,  Andrey Cherkas ,  Alexey Kalinichenko

IPC: G06T7/00 ,  H04N5/235 ,  G06K9/20 ,  G06T7/12 ,  G06T7/11 ,  G06T7/60 ,  G06T7/70 ,  B33Y50/00 ,  B29C64/386

Abstract: Implementations describe systems and methods for machine based defect detection of three-dimensional (3D) printed objects. A method of one embodiment of the disclosure includes providing a first illumination of a 3D printed object using a first light source arrangement. A plurality of images of the 3D printed object are then generated using one or more imaging devices. Each image may depict a distinct region of the 3D printed object. The plurality of images may then be processed by a processing device using a machine learning model trained to identify one or more types of manufacturing defects of a 3D printing process. The machine learning model may provide a probability that an image contains a manufacturing defect. The processing device may then determine, without user input, whether the 3D printed object contains one or more manufacturing defects based on the results provided by the machine learning model.

公开(公告)号：US20190295254A1

公开(公告)日：2019-09-26

申请号：US16435322

申请日：2019-06-07

Applicant: Align Technology, Inc.

Inventor： Anatoliy Parpara ,  Ivan Kharpalev ,  Stephan Albert Alexandre Dumothier ,  Andrey Cherkas ,  Alexey Kalinichenko ,  Jack Shaw ,  Israel Velazquez

IPC: G06T7/00 ,  G01N21/956 ,  A61C13/00 ,  A61C7/00 ,  G06T7/521 ,  G06T17/10

Abstract: A method and system for inspecting a customized orthodontic aligner for manufacturing defects are described. The method includes obtaining images of the customized orthodontic aligner, determining a digital file associated with the aligner, the digital file including a digital model of a mold used during manufacture of the customized orthodontic aligner, determining an inspection recipe for the aligner, determining an intended property for the customized orthodontic aligner by digitally manipulating the digital model of the mold, determining an actual property of the customized orthodontic aligner from the images, determining whether there is a manufacturing defect in the customized orthodontic aligner by comparing the intended property with the actual property, and outputting an output associated with the determination of whether there is a manufacturing defect.

公开(公告)号：US20190102880A1

公开(公告)日：2019-04-04

申请号：US16145016

申请日：2018-09-27

Applicant: Align Technology, Inc.

Inventor： Anatoliy Parpara ,  Ivan Kharpalev ,  Stephan Albert Alexandre Dumothier ,  Andrey Cherkas ,  Alexey Kalinichenko ,  Jack Shaw ,  Israel Velazquez

IPC: G06T7/00 ,  G06T7/521 ,  G06T17/10

Abstract: A method for inspecting a customized orthodontic aligner for manufacturing defects, the customized orthodontic aligner customized for a specific arch of a specific patient and a specific stage of orthodontic treatment, the method including obtaining images of the customized orthodontic aligner; identifying an identifier of the customized orthodontic aligner, determining a digital file based on the identifier, the digital file associated with the customized orthodontic aligner including a digital model of a mold used during manufacture of the customized orthodontic aligner, determining a intended property for the customized orthodontic aligner by digitally manipulating the digital model of the mold, determining an actual property of the customized orthodontic aligner from the images, determining whether there is a manufacturing defect in the customized orthodontic aligner by comparing the intended property with the actual property, outputting an output associated with the determination of whether there is a manufacturing defect.

公开(公告)号：US11589955B2

公开(公告)日：2023-02-28

申请号：US16584794

申请日：2019-09-26

Applicant: Align Technology, Inc.

Inventor： Viktoria Medvinskaya ,  Arno Kukk ,  Andrey Cherkas ,  Anna Akopova ,  Yuxiang Wang ,  Rohit Tanugula ,  Reza Shirazi Aghjari ,  Andrew Jang ,  Chunhua Li ,  Jun Sato ,  Luyao Cai

IPC: A61C7/00 ,  G06F17/18 ,  G06N20/00 ,  A61C7/08 ,  G06F30/23 ,  G16H50/50 ,  G01N33/44 ,  B33Y80/00 ,  A61C9/00 ,  A61C13/34 ,  B29C33/38 ,  B29C51/30 ,  G06F30/27 ,  B29C73/00 ,  G06F30/20 ,  G06F119/18 ,  G06F113/22 ,  G06F111/10 ,  B33Y50/00 ,  B29L31/00

Abstract: Embodiments relate to an aligner breakage solution that tests damage to an aligner using machine learning. A method includes processing data from a digital design for an orthodontic aligner by a trained machine learning model and outputting, by the trained machine learning model, a probability that the orthodontic aligner associated with the digital design will be damaged during manufacturing of the orthodontic aligner. The method further includes making a comparison of the probability that the orthodontic aligner associated with the digital design will be damaged during manufacturing of the orthodontic aligner to a probability threshold and determining whether the orthodontic aligner is a high risk orthodontic aligner based on a result of the comparison. Responsive to determining that the orthodontic aligner is a high risk orthodontic aligner, the method includes performing at least one of a) a corrective action or b) selecting a manufacturing flow for high risk orthodontic aligners.