公开(公告)号：US20240233923A1

公开(公告)日：2024-07-11

申请号：US18614524

申请日：2024-03-22

Applicant: Align Technology, Inc.

Inventor： Ya XUE ,  Jeeyoung CHOI ,  Justin B. MOORE ,  Anton SPIRIDONOV

IPC: G16H30/40 ,  A61C7/00 ,  A61C7/08 ,  A61C9/00 ,  G06F18/21 ,  G06F18/2413 ,  G06F18/243 ,  G06N3/08 ,  G06T7/10 ,  G06T7/66 ,  G16H50/20 ,  G16H50/50

CPC classification number: G16H30/40 ,  A61C7/002 ,  A61C7/08 ,  A61C9/0053 ,  G06F18/21 ,  G06F18/24147 ,  G06F18/24323 ,  G06T7/10 ,  G06T7/66 ,  G06N3/08 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20164 ,  G06T2207/30036 ,  G16H50/20 ,  G16H50/50

Abstract: Methods and systems for automatically determining an eruption status and/or primary or permanent tooth type of a target tooth. Methods may include determining tooth shape features of the target tooth from a 3D model of the patient's teeth. The methods may also include normalizing at least some of the tooth shape features using the tooth shape features of one or more reference teeth. The normalized tooth shape features may be applied to a classifier. Applying the normalized tooth shape features to the classifier may include applying either a first level binary classifier or a first level binary classifier and a second level binary classifier to the normalized tooth shape features.

公开(公告)号：US20180360567A1

公开(公告)日：2018-12-20

申请号：US16010087

申请日：2018-06-15

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Ya XUE ,  Jeeyoung CHOI ,  Justin B. MOORE ,  Anton SPIRIDONOV

IPC: A61C7/08 ,  A61C9/00 ,  A61C7/00 ,  G06T7/10 ,  G06T7/66 ,  G06K9/62 ,  G16H50/50

Abstract: Provided herein are systems and methods for detecting the eruption state (e.g., tooth type and/or eruption status) of a target tooth. A patient's dentition may be scanned and/or segmented. A target tooth may be identified. 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 detector can identify and/or output the eruption state of the target tooth, such as whether the target tooth is a fully erupted primary tooth, a permanent partially erupted/un-erupted tooth, or a fully erupted permanent tooth.