公开(公告)号：US20220036531A1

公开(公告)日：2022-02-03

申请号：US17370966

申请日：2021-07-08

Applicant: Align Technology, Inc.

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

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

Abstract: Systems and methods for machine based defect detection of 3D printed molds for orthodontic aligners are described. A method includes providing illumination of a 3D printed mold for an orthodontic aligner; generating a plurality of images of the 3D printed mold for the orthodontic aligner using one or more imaging devices, wherein each image of the plurality of images depicts a distinct region of the 3D printed mold for the orthodontic aligner; processing the plurality of images by a processing device to identify one or more types of manufacturing defects of the 3D printed mold for the orthodontic aligner, wherein for each type of manufacturing defect a probability that an image comprises a defect of that type of manufacturing defect is determined; and classifying, by the processing device, the 3D printed mold for the orthodontic aligner as defective based on identifying the one or more types of manufacturing defects.

公开(公告)号：US20220000583A1

公开(公告)日：2022-01-06

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 ,  A61C7/08 ,  B33Y80/00 ,  B33Y50/02 ,  B29C33/38 ,  B29C51/26 ,  B29C64/393 ,  B29C51/46

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：US11138727B2

公开(公告)日：2021-10-05

申请号：US16851038

申请日：2020-04-16

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 system for inspecting a customized dental device associated with a dental application for manufacturing defects is disclosed. The system obtains images of the customized device and identifies an identifier of the customized device. The system determines a digital file associated with the customized device based on the identifier, the digital file including a first digital model of the customized device and/or a second digital model of a mold used during manufacture of the customized device. The system determines an intended property for the customized device based on at least one of the first digital model or the second digital model, determines an actual property of the customized device from the images, determines whether there is a manufacturing defect in the customized device by comparing the intended property for the customized device with the actual property of the customized device, and outputs an output associated with the determination.

公开(公告)号：US10650517B2

公开(公告)日：2020-05-12

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: G06K9/00 ,  G06T7/00 ,  A61C7/00 ,  A61C13/00 ,  G01N21/956 ,  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.