公开(公告)号：EP3685796B1

公开(公告)日：2024-04-17

申请号：EP19153325.6

申请日：2019-01-23

IPC: A61C9/00 ,  A61C13/00 ,  A61C13/08 ,  G01J3/50 ,  G06T7/90 ,  A61C5/77 ,  A61C5/20 ,  A61C19/10 ,  A61C13/083

CPC classification number: G01J3/508 ,  A61C5/20 ,  A61C5/77 ,  A61C9/004 ,  A61C13/0004 ,  A61C13/0022 ,  A61C13/082 ,  A61C13/083 ,  A61C19/10 ,  G06T7/90 ,  G06T11/001

公开(公告)号：EP2688479B1

公开(公告)日：2018-08-29

申请号：EP12760500.4

申请日：2012-03-19

Applicant: Carestream Dental Technology Topco Limited

Inventor： WANG, Wei ,  SONG, Liwei ,  WU, Yingqian ,  WONG, Victor, C. ,  YAN, Jiayong

IPC: G06T7/00 ,  A61B6/14 ,  A61B5/00 ,  A61C9/00 ,  G01J3/50 ,  A61B6/00

CPC classification number: G06T7/0012 ,  A61B5/0071 ,  A61B5/0088 ,  A61B5/4547 ,  A61B5/7267 ,  A61B6/14 ,  A61B6/5217 ,  A61C9/0046 ,  G01J3/508 ,  G06K2209/05 ,  G06T2207/10064 ,  G06T2207/20081 ,  G06T2207/30036

Abstract: A method for intraoral imaging obtains a digital image of one or more teeth and detects first and second boundaries. At each of the first and second boundaries, there is calculated a boundary ratio of mean gray-scale values for the tooth area on one side of the boundary to mean gray-scale values for background areas on the other side. The calculated boundary ratios are stored. A third ratio of the mean gray-scale values for the tooth area near the first boundary to the mean gray-scale values for the tooth area near the second boundary is calculated and stored. A vector is formed and stored that contains at least the calculated boundary ratios and the third ratio. The tooth surface is classified as either smooth or occlusal according to the stored vector. The image data is processed according to the classification and processing results are reported.

公开(公告)号：EP2061372B1

公开(公告)日：2017-11-29

申请号：EP07837470.9

申请日：2007-08-29

Applicant: Carestream Health, Inc.

Inventor： LIANG, Rongguang ,  WONG, Victor, C. ,  MARCUS, Michael, A. ,  BRIDGES, Mark, E. ,  MCLAUGHLIN, Paul, O. ,  BURNS, Peter, D. ,  PATTON, David, L.

IPC: A61B5/00

CPC classification number: A61B5/0088 ,  A61B1/043 ,  A61B1/0607 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0684 ,  A61B1/24 ,  A61B5/0035 ,  A61B5/0066 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/4547 ,  A61B5/742 ,  A61B5/7425 ,  A61C1/088 ,  G01B9/02091 ,  G01B11/2441 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0224 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/4406 ,  G01J3/508 ,  G01N21/4795 ,  G01N21/6445 ,  G01N21/6456 ,  G01N21/6486 ,  G01N2021/1787

Abstract: An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image (122) from the tooth and a second spectral range for exciting a fluorescence image (120) from the tooth. A polarizing beamsplitter (18) in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (68), wherein the second polarization state is orthogonal to the first polarization state. A first lens (22) in the return path directs image-bearing light from the tooth toward the sensor (68), and obtains image data from the portion of the light having the second polarization state. A long-pass filter (15) in the return path attenuates light in the second spectral range.

公开(公告)号：EP3212646A1

公开(公告)日：2017-09-06

申请号：EP15787970.1

申请日：2015-10-27

Applicant: Dental Monitoring

Inventor： SALAH, Philippe ,  AYACHE, William ,  DEBRAUX, Laurent ,  GHYSELINCK, Guillaume ,  PELLISSARD, Thomas

IPC: C07D471/04 ,  A61K31/437 ,  A01N43/40 ,  A61P31/10 ,  G06T7/00 ,  A61C7/00 ,  A61C9/00

CPC classification number: A61C9/0053 ,  A61B1/00009 ,  A61B1/32 ,  A61B5/0088 ,  A61B5/064 ,  A61B5/4547 ,  A61B5/742 ,  A61B2576/02 ,  A61C7/002 ,  A61C9/0046 ,  A61C11/00 ,  A61C19/066 ,  A61C19/10 ,  A61C2007/004 ,  G01J3/00 ,  G01J3/508 ,  G01J3/52 ,  G06K9/00 ,  G06K9/00214 ,  G06K9/6202 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/251 ,  G06T7/33 ,  G06T7/55 ,  G06T7/73 ,  G06T2207/30004 ,  G06T2207/30036

Abstract: The invention relates to a method for monitoring a property of the appearance of the teeth of a patient, said method including the following consecutive steps: A) acquiring, by means of a first acquisition apparatus, at least one first two-dimensional image of said teeth and of a first reference gauge, referred to as "initial image"; B) acquiring, by means of a second acquisition apparatus, at least one second two-dimensional image of said teeth and of a second reference gauge having the same appearance as the first reference gauge, referred to as "updated image"; C) standardising the initial and updated images such that the representations of the first and second reference gauges on the standardised initial and updated images have the same appearance; D) before or after step C, marking the same region of the teeth on the initial and updated images; and E) comparing the appearance of said region in the standardised initial and updated images.

Abstract translation: 本发明涉及一种用于借助三维数字参考模型来优化从患者的牙弓的二维图像中提取的被称为“获取的图像”的初始鉴别信息的方法，该三维数字参考模型的至少一部分 所述方法包括以下步骤：C1。 评估初始鉴别信息和质量阈值的质量，过滤以便只保留质量高于质量阈值的初始鉴别信息，并将“待测试鉴别信息”定义为选择的初始鉴别信息; C2。 测试待测试的鉴别信息与所述参考模型之间的一致性; C3。 评估测试结果，并根据所述评估：将未保持的鉴别信息添加到待测试的鉴别信息和/或从待测试鉴别信息中删除鉴别信息，然后返回到步骤C2。 要么; 将最佳区分信息定义为要测试的区分信息。

公开(公告)号：EP3212116A1

公开(公告)日：2017-09-06

申请号：EP15788369.5

申请日：2015-10-27

Applicant: Dental Monitoring

Inventor： SALAH, Philippe ,  AYACHE, William ,  DEBRAUX, Laurent ,  GHYSELINCK, Guillaume ,  PELLISSARD, Thomas

IPC: A61C7/00 ,  A61C9/00 ,  G06T7/00

CPC classification number: A61C9/0053 ,  A61B1/00009 ,  A61B1/32 ,  A61B5/0088 ,  A61B5/064 ,  A61B5/4547 ,  A61B5/742 ,  A61B2576/02 ,  A61C7/002 ,  A61C9/0046 ,  A61C11/00 ,  A61C19/066 ,  A61C19/10 ,  A61C2007/004 ,  G01J3/00 ,  G01J3/508 ,  G01J3/52 ,  G06K9/00 ,  G06K9/00214 ,  G06K9/6202 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/251 ,  G06T7/33 ,  G06T7/55 ,  G06T7/73 ,  G06T2207/30004 ,  G06T2207/30036

Abstract: The invention relates to a method for optimising initial discriminating information extracted from a two-dimensional image of the dental arches of a patient, referred to as "acquired image", by means of a three-dimensional digital reference model of at least one portion of an arch of the patient, said method including the following steps: C1. assessing the quality of the initial discriminating information and a quality threshold, filtering so as to keep only the initial discriminating information that has quality higher than the quality threshold, and defining "the discriminating information to be tested" as being the initial discriminating information selected; C2. testing a consistency between the discriminating information to be tested and said reference model; C3. assessing the result of the test and, in accordance with said assessment: adding discriminating information that was not kept to the discriminating information to be tested and/or deleting discriminating information from the discriminating information to be tested, and then returning to step C2. or; defining the optimal discriminating information as being the discriminating information to be tested.

Abstract translation: 本发明涉及一种用于借助三维数字参考模型来优化从患者的牙弓的二维图像中提取的被称为“获取的图像”的初始鉴别信息的方法，该三维数字参考模型的至少一部分 所述方法包括以下步骤：C1。 评估初始鉴别信息和质量阈值的质量，过滤以便只保留质量高于质量阈值的初始鉴别信息，并将“待测试鉴别信息”定义为选择的初始鉴别信息; C2。 测试待测试的鉴别信息与所述参考模型之间的一致性; C3。 评估测试结果，并根据所述评估：将未保持的鉴别信息添加到待测试的鉴别信息和/或从待测试鉴别信息中删除鉴别信息，然后返回到步骤C2。 要么; 将最佳区分信息定义为要测试的区分信息。

公开(公告)号：EP3212114A1

公开(公告)日：2017-09-06

申请号：EP15786937.1

申请日：2015-10-27

Applicant: Dental Monitoring

Inventor： SALAH, Philippe ,  AYACHE, William ,  DEBRAUX, Laurent ,  GHYSELINCK, Guillaume ,  PELLISSARD, Thomas

IPC: A61C7/00 ,  A61C9/00 ,  G06T7/00

CPC classification number: A61C9/0053 ,  A61B1/00009 ,  A61B1/32 ,  A61B5/0088 ,  A61B5/064 ,  A61B5/4547 ,  A61B5/742 ,  A61B2576/02 ,  A61C7/002 ,  A61C9/0046 ,  A61C11/00 ,  A61C19/066 ,  A61C19/10 ,  A61C2007/004 ,  G01J3/00 ,  G01J3/508 ,  G01J3/52 ,  G06K9/00 ,  G06K9/00214 ,  G06K9/6202 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/251 ,  G06T7/33 ,  G06T7/55 ,  G06T7/73 ,  G06T2207/30004 ,  G06T2207/30036

Abstract: The invention relates to a method for monitoring the shape of the teeth of a patient, including the following steps: a) producing a three-dimensional digital model of at least one portion of an arch of the patient, preferably of the arches of the patient, or "initial reference model"; b) acquiring at least one two-dimensional image of the arches of the patient, referred to as "updated image", under actual acquisition conditions; c) analysing each updated image and producing, for each updated image, an updated map relating to a piece of discriminating information; d) optionally determining, for each updated image, rough virtual acquisition conditions that approximate said actual acquisition conditions; e) searching each updated image for a final reference model corresponding to the shape of the teeth, and optionally to the positioning of the teeth, during the acquisition of the updated image; and f) comparing the shapes of the initial reference model and of the reference model obtained at the end of the preceding steps, referred to as "final reference model", in order to determine the deformation and/or the movement of the teeth between steps a) and b).

公开(公告)号：EP3105558A1

公开(公告)日：2016-12-21

申请号：EP14802915.0

申请日：2014-11-27

Applicant: Style Idea Factory Sociedad Limitada

Inventor： PEREZ CASAS, Jordi ,  PUTIGNANO, Angelo ,  DEVOTO, Walter

IPC: G01J3/02 ,  G01J3/50 ,  G01J3/52

CPC classification number: G01J3/508 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/524

Abstract: A device (1) for dental use for discriminating the color of teeth, comprises: a cellular phone (2) with a digital camera (20) comprising a lens (21) and a light source (22) acting as flash, a case (3), a spacer (7) mounted on the case (3) in correspondence of the lens (21) and the light source (22), a first polarization filter (4) and a second polarization filter (5) disposed inside the spacer (7), respectively on said lens (21) and on said light source (22), a calibration label (8) disposed in the spacer (7), a database (100) containing a plurality of digital sample images that univocally define sample colors, and a comparison software (101 ) to compare the digital image of the tooth taken with the device (1) with said sample images of the database (100) to discriminate the color of the photographed tooth.

公开(公告)号：EP3099269A1

公开(公告)日：2016-12-07

申请号：EP15701535.5

申请日：2015-01-28

Applicant: Heraeus Kulzer GmbH

Inventor： REAY, David J. ,  KUBIAK-ESSMANN, Harald

IPC: A61C13/01 ,  A61C19/10 ,  G01J3/50 ,  A61C8/00 ,  A61C13/10 ,  A61C13/225 ,  A61C13/271

CPC classification number: A61C13/01 ,  A61B5/1034 ,  A61B5/4552 ,  A61C13/082 ,  A61C19/10 ,  G01J3/508 ,  G01J3/52

Abstract: The invention relates to a gingival indexing device comprising different, defined red colour regions (red tones) which are assigned a grey colour chart or grey chart, and to a method for recording the gingival situation, in particular for producing a gingival restoration, involving an analysis at least of a region of the gingival situation with regard to the red colour tones thereof, the position of the red colour tones, the colour gradient of the red colour tones, the geometry thereof and/or the morphology thereof, wherein the analysis may take place manually and/or digitally, and gingival information is obtained, in particular in the form of gingival mapping, and optionally producing a virtual or real model of a gingival restoration simulation of the missing gum portion or gingiva portion.

Abstract translation: 具有各种定义的红色区域的牙龈分度设备和方法具有分配给其的彩色灰卡或灰卡，用于检测牙龈状态，特别是用于产生牙龈修复体。 装置和方法包括对于其红色阴影，红色阴影的位置，红色的颜色，其几何形状和/或其形态的牙龈状态的至少一个区域的分析。 分析可以手动和/或数字地进行，并且获得牙龈信息，特别是以牙龈图的形式，并且可选地生产牙龈修复物的虚拟或真实模型作为牙龈缺失部分的再现 和/或牙龈的一部分。

公开(公告)号：EP3018461A1

公开(公告)日：2016-05-11

申请号：EP14192264.1

申请日：2014-11-07

Applicant: 3M Innovative Properties Company

Inventor： Korten, Malte ,  Mayr, Helmar

IPC: G01J3/50 ,  A61C13/08 ,  A61C13/00 ,  G06T7/00 ,  A61C19/10

CPC classification number: A61C13/082 ,  A61B1/24 ,  A61C13/0004 ,  A61C13/0022 ,  A61C13/09 ,  A61C19/10 ,  G01J3/463 ,  G01J3/508 ,  G06T7/0014 ,  G06T7/12 ,  G06T7/90 ,  G06T2207/30036

Abstract: A method of making a dental restoration has the steps of capturing an image of a tooth, posterizing the image, determining a tooth color structure, providing information about a multicolored block having a block color structure, matching the tooth color structure and the block color structure, based on the matching, determining a position within the block in which the tooth color structure and the block color structure match, and machining the dental restoration from the block at the determined position. The invention helps facilitating the making of dental restorations at maximized aesthetics.

Abstract translation: 制造牙齿修复体的方法具有以下步骤：捕获牙齿图像，使图像过后，确定牙齿颜色结构，提供关于具有块颜色结构的多色块的信息，匹配牙齿颜色结构和块颜色结构 基于所述匹配，确定所述块中的所述牙齿颜色结构和所述块颜色结构相匹配的位置，以及从所述确定位置处的所述块加工所述牙齿修复体。 本发明有助于以最大的美观度制造牙科修复体。

公开(公告)号：EP2799032A1

公开(公告)日：2014-11-05

申请号：EP13165808.0

申请日：2013-04-29

Applicant: 3M Innovative Properties Company

Inventor： Korten, Malte ,  Schechner, Gallus ,  Mayr, Helmar ,  Raia, Gioacchino

IPC: A61C9/00

CPC classification number: A61C13/082 ,  A61B1/051 ,  A61B1/24 ,  A61C9/0053 ,  A61C13/34 ,  G01J3/508

Abstract: A method of capturing data from a patient's dentition with the steps of positioning a first optical sensor relative to patient's dentition, capturing the shape of a tooth in the patient's dentition, independent from capturing the shape, measuring a color at a location on the tooth, and providing a correlation between the location of the color and a coordinate in the captured shape. The invention helps providing a dental restoration at a relatively high optical, mechanical, and geometric quality.

Abstract translation: 从患者的牙列捕获数据与第一光学相对于患者牙列的传感器定位的步骤，捕获的齿的形状在患者的牙列，独立于捕获的形状，在齿测量颜色的位置处的方法， 和在捕获的形状提供的颜色的位置和一个之间的相关坐标。 本发明有助于在一个相对高的光学，机械和几何质量提供牙科修复。