公开(公告)号：US11903793B2

公开(公告)日：2024-02-20

申请号：US17138824

申请日：2020-12-30

申请人： Align Technology, Inc.

发明人： Christopher E. Cramer ,  Roman Gudchenko ,  Dmitrii Ischeykin ,  Vasily Paraketsov ,  Sergey Grebenkin ,  Denis Durdin ,  Dmitry Guskov ,  Nikolay Zhirnov ,  Mikhail Gorodilov ,  Ivan Potapenko ,  Anton Baskanov ,  Elizaveta Ulianenko ,  Alexander Vovchenko ,  Roman Solovyev ,  Aleksandr Sergeevich Karsakov ,  Aleksandr Anikin ,  Mikhail Toporkov

IPC分类号： A61C9/00 ,  A61C13/34 ,  G06T7/143 ,  G06T17/20

CPC分类号： A61C9/0053 ,  A61C13/34 ,  G06T7/143 ,  G06T17/20 ,  G06T2207/30036 ,  G06T2210/41

摘要： Methods for automatically segmenting a 3D model of a patient's teeth may include scanning a patient's dentition and converting the scan data into a 3D model, including a sparse voxel representation of the 3D model. Features can be extracted from the sparse voxel representation of the 3D model and input into a machine learning model to train the machine learning model to segment the 3D model into individual dental components.

公开(公告)号：US11654001B2

公开(公告)日：2023-05-23

申请号：US16593690

申请日：2019-10-04

申请人： ALIGN TECHNOLOGY, INC.

发明人： Roman A. Roschin ,  Evgenii Vladimirovich Karnygin ,  Sergey Grebenkin ,  Dmitry Guskov ,  Dmitrii Ischeykin ,  Ivan Potapenko ,  Denis Durdin ,  Roman Gudchenko ,  Vasily Paraketsov ,  Mikhail Gorodilov ,  Alexey Vladykin ,  Roman Solovyev ,  Alexander Beliaev ,  Elizaveta Ulianenko ,  Leonid Trofimov ,  Anzhelika Son ,  Nikolay Zhirnov ,  Alexander Vovchenko

IPC分类号： A61C9/00 ,  A61C13/34

CPC分类号： A61C9/0053 ,  A61C13/34

摘要： Provided herein are systems and methods for determining if a 3D tooth model requires trimming or removal of incomplete or missing data (e.g., gingiva covering a portion of a tooth such as a molar). 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 probability that the 3D tooth model requires trimming. Trimming of the 3D tooth model can be implemented without human intervention.

公开(公告)号：US12036093B2

公开(公告)日：2024-07-16

申请号：US18300382

申请日：2023-04-13

申请人： Align Technology, Inc.

发明人： Roman A. Roschin ,  Evgenii Vladimirovich Karnygin ,  Sergey Grebenkin ,  Dmitry Guskov ,  Dmitrii Ischeykin ,  Ivan Potapenko ,  Denis Durdin ,  Roman Gudchenko ,  Vasily Paraketsov ,  Mikhail Gorodilov ,  Alexey Vladykin ,  Roman Solovyev ,  Alexander Beliaev ,  Elizaveta Ulianenko ,  Leonid Trofimov ,  Anzhelika Son ,  Nikolay Zhirnov ,  Alexander Vovchenko

IPC分类号： A61C9/00 ,  A61C13/34

CPC分类号： A61C9/0053 ,  A61C13/34

摘要： Provided herein are systems and methods for determining if a 3D tooth model requires trimming or removal of incomplete or missing data (e.g., gingiva covering a portion of a tooth such as a molar). A patient's dentition may be scanned and/or segmented. Features of the patient's teeth can be determined, including a tooth center point of at least three of the patient's teeth. The features of the patient's teeth are used to access a parametric model. A trim plane normal vector is identified for a distal tooth. Trimming of the 3D tooth model is based on the trim plane normal vector.