公开(公告)号：US20220110729A1

公开(公告)日：2022-04-14

申请号：US17431747

申请日：2020-03-10

Applicant: CARESTREAM DENTAL LLC

Inventor： Yannick GLINEC ,  Victor C. WONG

IPC: A61C13/08 ,  A61C9/00 ,  G01J3/50 ,  G06T7/90

Abstract: A shade matching method for a tooth obtains a plurality of digitized tooth shade references, obtains a three-dimensional (3D) surface representation of a tooth and associated color information defined on the three-dimensional (3D) surface, selects a region on the three-dimensional (3D) surface representation of the tooth, determines a plurality of correspondences with the common tooth shape of all the tooth shade references, computes color difference with each of the tooth shade reference from the plurality of tooth shade references, and records the label corresponding to the shade reference with a smallest difference.

公开(公告)号：US20230000600A1

公开(公告)日：2023-01-05

申请号：US17781060

申请日：2020-12-03

Applicant: CARESTREAM DENTAL LLC

Inventor： Victor C. WONG ,  Jean-Marc INGLESE ,  Edward R. SHELLARD

IPC: A61C9/00

Abstract: A method for intraoral imaging generates one or more output imaging signals from an intraoral probe and acquires multimodal image content from intraoral surface locations according to tissue response from the one or more imaging signals and associates spatial coordinates to the acquired multimodal image content. A surface contour of the patient dentition is generated by stitching the acquired multimodal image content and preserving the association of spatial coordinates with the stitched multimodal image content. Tooth outlines for one or more teeth are generated from the generated surface contour and the generated outlines arranged as a dental chart representing a spatial ordering of the one or more teeth and of supporting gum tissue adjacent to the teeth. The dental chart is populated by analyzing the acquired multimodal image content and associating the analysis to positions on the dental chart according to the preserved association of spatial coordinates and is displayed.

公开(公告)号：US20240000553A1

公开(公告)日：2024-01-04

申请号：US18039616

申请日：2021-12-02

Applicant: CARESTREAM DENTAL LLC

Inventor： Shoupu CHEN ,  Victor C. WONG ,  Jean-Marc INGLESE ,  Edward R. SHELLARD ,  Delphine REYNARD ,  Xavier RIPOCHE ,  Sabrina CAPRON-RICHARD ,  Sebastien HENRY

IPC: A61C13/34 ,  A61C7/00 ,  A61C7/08 ,  A61C9/00 ,  B33Y80/00 ,  B33Y50/00 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: A61C13/34 ,  A61C7/002 ,  A61C7/08 ,  A61C9/0053 ,  B33Y80/00 ,  B33Y50/00 ,  B33Y10/00 ,  B33Y30/00 ,  A61B6/14

Abstract: A method and system for fabricating a dental appliance for orthodontic treatment. The method comprises the steps of obtaining three-dimensional dental data from a patient scan, locating initial tooth positions, generating optimal arch forms, and determining a digital model for fabricating an orthodontic aligner with additive device. The system comprises a scanning apparatus to acquire three-dimensional dental data, and a computer apparatus programmed with instructions for generating optimal arch forms, and determining a digital model for fabricating an orthodontic aligner with additive device.

公开(公告)号：US20210267447A1

公开(公告)日：2021-09-02

申请号：US17204332

申请日：2021-03-17

Applicant: CARESTREAM DENTAL LLC

Inventor： Yiyi GUAN ,  Victor C. WONG ,  James R. MILCH

IPC: A61B1/24 ,  A61B1/00 ,  G01B11/25 ,  G02F1/01 ,  G06T5/00 ,  H04N5/225

Abstract: An apparatus for intraoral imaging has an illumination source that directs light to an object. An imaging apparatus forms an image at an image sensor array from reflected light from the object, the imaging apparatus having an optical stop along an optical axis. A phase modulator is disposed at or near the optical stop. An image processor conditions data from the image sensor array and provides processed image data of the object.

公开(公告)号：US20220071578A1

公开(公告)日：2022-03-10

申请号：US17419094

申请日：2019-12-30

Applicant: CARESTREAM DENTAL LLC

Inventor： Jay S. SCHILDKRAUT ,  Jean-Marc INGLESE ,  Victor C. WONG

IPC: A61B6/00 ,  A61B6/03

Abstract: The present disclosure describes a Cone Beam Computed Tomography (CBCT) imaging system and methods of operating the system to minimize the degradation of projection images by metal in a scanned object. The methods determine the location of metal in the scanned object by making an initial low dose scan and then, using information obtained from the low dose scan, perform a second scan that may be used to create a reconstruction with reduced artifacts. The methods also calculate X-ray source and detector scan trajectories which minimize reconstruction artifacts and optimize image quality, especially when a region-of-interest is near metal in the scanned object. Additionally, the methods of the present invention calculate X-ray source and detector scan trajectories that maximize the angular range of X-rays which pass through the region-of-interest that are not blocked by metal in the scanned object.

公开(公告)号：US20240099812A1

公开(公告)日：2024-03-28

申请号：US18039602

申请日：2021-12-01

Applicant: CARESTREAM DENTAL LLC

Inventor： Shoupu CHEN ,  Victor C. WONG ,  Jean-Marc INGLESE ,  Edward R. SHELLARD ,  Jacques FAURE

IPC: A61C7/00 ,  A61C9/00 ,  G06T7/00

CPC classification number: A61C7/002 ,  A61C9/0053 ,  G06T7/00 ,  A61C2007/004 ,  G06T2207/10008 ,  G06T2207/10081 ,  G06T2207/30036

Abstract: A method for generating optimal arch forms for a patient's dental arch is presented. The method comprises: receiving first positional digital data for one or more teeth from a reconstructed 3D digital volume of the patient dental arch; (b) generating second positional digital data for the one or more teeth according to a desired dental arch form for the patient; (c) calculating a first displacement data for one or more teeth according to the first positional and second positional digital data; (d) detecting teeth collision values based on the first displacement data; (e) calculating a second displacement data for one or more teeth based on the detected teeth collision values; and (f) reporting a combination of the first displacement data and second displacement data for repositioning one tooth or more teeth of the dental arch.

公开(公告)号：US20220133446A1

公开(公告)日：2022-05-05

申请号：US17431754

申请日：2020-03-12

Applicant: CARESTREAM DENTAL LLC

Inventor： Xiaodong TAO ,  Victor C. WONG ,  Chuanhmao FAN

IPC: A61C9/00 ,  A61B5/00 ,  A61B5/103 ,  G01B9/02091 ,  G01B9/02015 ,  G06T11/00

Abstract: A dental optical coherence tomography system for scanning a sample has a swept source laser configured to generate output light having a range of wavelengths. Two or more optical channels each provide a reference and sample path for the output light, wherein each optical channel has a corresponding detector to provide an output signal according to combined light from the sample and reference, wherein the detector output signal characterizes back-reflected or back-scattered light from the sample path over a range of depths below a surface. A scanning reflector simultaneously directs sample path output light from each of the two or more channels toward the sample surface and directs returned light from the sample to the corresponding sample path and detector. A processor is in signal communication with the detector for each optical channel and that is configured to record and store results from the output signals received from each detector.