公开(公告)号：US20230225831A1

公开(公告)日：2023-07-20

申请号：US18157062

申请日：2023-01-19

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Christopher E. CRAMER ,  Chad Clayton BROWN ,  Guotu LI

IPC: A61C7/00 ,  A61C7/08 ,  G16H20/40 ,  G16H10/60 ,  G06T7/00

CPC classification number: A61C7/002 ,  A61C7/08 ,  G16H20/40 ,  G16H10/60 ,  G06T7/0012 ,  G06T2207/30036

Abstract: A method for dental treatment may include receiving a plurality of images of a patient, the plurality of images including the patient's dentition and an orthodontic appliance while the patient is wearing the orthodontic appliance, determining whether each of the plurality of images satisfy a plurality of detection criteria, segmenting the teeth in the images, segmenting the images to classify each pixel as being of the orthodontic appliance and the teeth, classifying the pixels of the image as being pixels belonging to a space between an aligner and a tooth, assigning the pixels belonging to a space to one or more of the teeth, determining a conversion between image-based spatial measurements to real-world spatial measurements by projecting a tooth from the treatment plan into a plane that corresponds to a plane of a corresponding tooth in the image, and determining a size of each of the one or more spaces.

公开(公告)号：US20220023008A1

公开(公告)日：2022-01-27

申请号：US17443244

申请日：2021-07-22

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Christopher E. CRAMER ,  Rajiv VENKATA ,  Leela PARVATHANENI ,  Phillip Thomas HARRIS ,  Sravani GURIJALA ,  Svetozar HUBENOV ,  Sebastien HARENG ,  Guotu LI ,  Yun GAO ,  Chad Clayton BROWN

IPC: A61C7/08 ,  A61C9/00 ,  G16H20/40 ,  G16H80/00 ,  G06N3/08 ,  G06N3/04

Abstract: A method for dental treatment may include receiving photos of a patient's dentition, gathering treatment parameters for at treatment plan. The treatment parameters may represent attributes of the treatment plan selected by a doctor for the patient's dentition of a patient. The method may include generating, using the photos and the treatment parameters, one or more intelligent guidance rules to guide application of at least a portion of the treatment parameters to the patient's dentition, generating instructions to apply the intelligent patient guidance rules to the patient's dentition, and providing the instructions to the patient to apply the at least a portion of the treatment plan in accordance with the intelligent patient guidance rules.

公开(公告)号：US20200085546A1

公开(公告)日：2020-03-19

申请号：US16569345

申请日：2019-09-12

Applicant: Align Technology, Inc.

Inventor： Guotu LI ,  Christopher E. CRAMER ,  Chad Clayton BROWN ,  Anton SPIRIDONOV

IPC: A61C9/00 ,  A61C13/34 ,  A61C7/00 ,  A61C13/20 ,  A61B5/00

Abstract: Provided herein are systems and methods for scoring a post-treatment tooth position of a patient's teeth. A patient's dentition may be scanned and/or segmented. Raw dental features, principal component analysis (PCA) features, and/or other features may be extracted and compared to those of other teeth, such as those obtained through automated machine learning systems. A classifier can identify and/or output the post-treatment tooth position of the patient's teeth.