WO2017195819A1 - 歯の健全性判定支援装置および歯の健全性判定支援システム - Google Patents
歯の健全性判定支援装置および歯の健全性判定支援システム Download PDFInfo
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- WO2017195819A1 WO2017195819A1 PCT/JP2017/017677 JP2017017677W WO2017195819A1 WO 2017195819 A1 WO2017195819 A1 WO 2017195819A1 JP 2017017677 W JP2017017677 W JP 2017017677W WO 2017195819 A1 WO2017195819 A1 WO 2017195819A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0071—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by measuring fluorescence emission
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
Definitions
- the present invention relates to a tooth health judgment support device and a tooth health judgment support system that support a tooth health judgment by a dentist.
- the QLF method is a diagnostic method that utilizes the fact that teeth emit fluorescence when the teeth are irradiated with blue-violet light (excitation light).
- an object of the present invention is to provide a tooth health determination support device and a tooth health determination support system that support a tooth health determination by a dentist.
- a tooth health determination support device includes a grayscale conversion unit that converts a fluorescence image obtained by imaging fluorescence of a tooth irradiated with excitation light into a grayscale image, and a tooth in the grayscale image.
- Gray scale value acquisition unit that acquires the gray scale values of the reference point and the plurality of evaluation points in the image of the tooth, and data for determining the tooth health that visually represents the gray scale value of the reference point and the gray scale values of the plurality of evaluation points
- the tooth health determination support apparatus may further include a normalization unit that normalizes gray scale values of a plurality of evaluation points with a gray scale value of a reference point, and the tooth health determination data generation unit includes a tooth In the soundness determination data, the gray scale values of a plurality of evaluation points normalized by the normalization unit may be visually represented.
- the normalization unit may normalize the gray scale values of the plurality of evaluation points by dividing the gray scale values of the plurality of evaluation points by the gray scale value of the reference point.
- the tooth health determination data generation unit may generate a graph representing the secular change of the gray scale value of the reference point and the gray scale values of the plurality of evaluation points as the tooth health determination data.
- the reference point is a point at the maximum ridge of the tooth
- the evaluation point is a point at the tooth edge (tooth enamel part).
- the gray scale value acquisition unit extracts the entire tooth image from the gray scale image to obtain the center of gravity or center of the entire tooth image, sets the maximum brightness point in the entire tooth image as a reference point, Alternatively, multiple evaluations are made at points located at a predetermined distance from the edge of the tooth in the center of gravity or in the center direction on a plurality of imaginary lines that pass through the center and have a predetermined angle with respect to the center of gravity or the center and the reference point. It may be set to a point.
- a tooth health determination support system includes the above-described tooth health determination support device, an imaging device that irradiates the teeth with excitation light to capture fluorescence of the teeth, and generates a fluorescence image. And a display device for displaying the data for tooth health determination generated by the health determination support device.
- the fluorescence imaging image obtained by imaging the fluorescence of the tooth irradiated with the excitation light is analyzed to generate tooth health determination data, and the dentist refers to the tooth health determination data with reference to the tooth health determination data. Soundness judgment can be performed.
- FIG. 4A is a graph showing the secular change of each gray scale value of the reference point and the seven evaluation points obtained by analyzing the fluorescence image of FIG. 4A.
- Graph obtained by normalizing the gray scale values in FIG. 4B The figure which shows the fluorescence imaging image of another child's tooth imaged by the regular dental examination FIG.
- FIG. 5A is a graph showing the secular change of the gray scale values of the reference point and the three evaluation points obtained by analyzing the fluorescence imaging image of FIG. 5A.
- FIG. 5B The figure which shows the fluorescence imaging image of another child's tooth imaged by regular dental examination
- FIG. 6A is a graph showing the secular change of each grayscale value of the reference point and the three evaluation points obtained by analyzing the fluorescence image of FIG. 6A.
- FIG. 6B Illustration showing a visible light photo image of a healthy tooth A diagram showing an atomic force microscope image (1 ⁇ m field of view) of the surface of a healthy tooth Diagram showing fluorescence imaging image of healthy teeth Illustration showing a visible light photo image of an unhealthy tooth A diagram showing an atomic force microscope image (5 ⁇ m field of view) of the surface of an unhealthy tooth Diagram showing fluorescence imaging image of unhealthy teeth The figure which shows the processing procedure of the gray scale image which imaged the tooth The figure which shows the process sequence following FIG. 9A. The graph showing the brightness
- FIG. 1 is a configuration diagram of a tooth health determination support system according to an embodiment of the present invention.
- the tooth health determination support system 100 includes an imaging device 10, a tooth health determination support device 20, and a display device 30.
- the imaging device 10 is a device that irradiates teeth with excitation light and images the fluorescence of the teeth.
- the imaging apparatus 10 includes a main body 11, a light source 12, and a camera 13.
- the main body 11 is a hollow rod-shaped member.
- Various electronic boards are arranged inside the hollow of the main body 11.
- the light source 12 and the camera 13 are arranged close to each other at the tip of the main body 11. The distal end of the main body 11 can be inserted into the patient's mouth.
- the light source 12 is a device that emits blue-violet light (excitation light) having a specific wavelength (370 ⁇ 40 nm).
- the light source 12 can be configured by combining an LED (Light ⁇ Emitting Diode) or a xenon lamp with a filter that transmits light of the specific wavelength.
- the camera 13 is a device that generates image data by photoelectrically converting light from a subject.
- the camera 13 can be composed of an optical system and a CCD (Charge-Coupled Device) image sensor.
- the optical system may include a filter that transmits only green to yellow-green light.
- the imaging device 10 is used to acquire a fluorescence image of a tooth.
- the enamel on the outermost layer of the crown has the property of transmitting light like glass.
- the boundary between the enamel and the dentin in the inner layer has a property of emitting fluorescence when irradiated with light of a specific wavelength.
- a fluorescent substance at the boundary between enamel and dentin is excited to emit strong fluorescence when irradiated with excitation light having a specific wavelength, and the fluorescence is emitted to the outside through the enamel.
- the imaging device 10 images such tooth fluorescence.
- FIG. 2 shows an example of a fluorescence imaging image of a tooth imaged by the imaging device 10.
- the image is an image of the occlusal surface of the maxillary right first molar. Note that the tooth images in the actual image are green to yellow-green, but are shown in gray scale for convenience in FIG.
- the tooth health determination support device 20 receives a fluorescence image of a tooth from the imaging device 10, processes the fluorescence image, and helps the tooth health determination of the tooth health by the dentist. It is an apparatus that generates data for determination.
- the imaging device 10 and the tooth health determination support device 20 are wired by a USB (Universal Serial ⁇ Bus) cable or a network cable, or may be wirelessly connected by WiFi (registered trademark) or Bluetooth (registered trademark). it can.
- the dental soundness determination support device 20 can be configured by a general-purpose computer such as a PC (Personal Computer) or a server device, for example. Further, the tooth health determination support device 20 can be realized as SaaS (Software as a Service) on the cloud. In this case, the imaging device 10, the tooth health determination support device 20, and the display device 30 are connected to each other via a network such as the Internet.
- a general-purpose computer such as a PC (Personal Computer) or a server device, for example.
- SaaS Software as a Service
- the tooth health determination support device 20 includes a gray scale conversion unit 21, a gray scale value acquisition unit 22, a normalization unit 23, and a tooth health determination data generation unit 24.
- the gray scale conversion unit 21, the gray scale value acquisition unit 22, the normalization unit 23, and the tooth health determination data generation unit 24 can be realized by software, hardware, or a combination thereof.
- the gray scale conversion unit 21 converts a fluorescence captured image obtained by capturing fluorescence of teeth irradiated with excitation light into a gray scale image.
- the fluorescence image of the tooth is, for example, an RGB color image. As described above, the tooth image appears in green to yellowish green in the fluorescence image.
- the gray scale conversion unit 21 temporarily converts the fluorescence image of the tooth into the HSV color space, and deletes the hue information (Hue) and the saturation information (Saturation) while retaining the luminance information (Value). Can be obtained.
- the number of gradations of the grayscale image is arbitrary, for example, 256 gradations.
- the gray scale value acquisition unit 22 acquires the gray scale values of the reference point and the plurality of evaluation points in the tooth image in the gray scale image converted by the gray scale conversion unit 21.
- point P 0 is a reference point
- points P 1 , P 2 , P 3 , and P 4 are evaluation points.
- the grayscale value of the blackest point is “255”
- the grayscale value of the whitest point is “0”. That is, the gray scale value increases as the portion of the gray scale image appears darker.
- FIG. 3 is a longitudinal sectional view of a tooth (molar). Reference points and evaluation points will be described with reference to the cross-sectional view. The reference point is set at a position where the fluorescence at the boundary surface between the enamel 101 and the dentin 102 can be captured.
- the fluorescence at the boundary surface between the enamel 101 and the dentin 102 passes through the enamel 101 and reaches the surface layer. If decalcification of the enamel 101 proceeds due to initial caries or the like, the enamel 101 crystals As a result, the light is diffusely reflected, and the fluorescence at the boundary surface between the enamel 101 and the dentin 102 cannot be accurately captured in the tooth surface layer. Therefore, it is preferable that the reference point is a point at the maximum ridge where the crystallinity of the enamel 101 is relatively stable, unlike the initial caries. In this way, at the evaluation point, the fluorescence transmitted through the enamel 101 in the row direction of the enamel trabeculae can be captured.
- the evaluation point is set at a position where only the fluorescence of the enamel 101 can be captured.
- a point at the edge of the tooth can be used as the evaluation point.
- the fluorescence transmitted across the row of enamel trabeculae will be captured. Therefore, if the crystallinity of the enamel 101 is deteriorated, the light is irregularly reflected and the fluorescence of the enamel 101 captured at the evaluation point becomes bright. Conversely, if the crystallinity of the enamel 101 is good, the light is less likely to be diffusely reflected and the fluorescence of the enamel 101 captured at the evaluation point becomes dark.
- the quality of the enamel 101 crystallinity can be determined by the brightness of the evaluation points in the gray scale image.
- FIG. 7A shows a visible light photograph image of a healthy tooth
- FIG. 7B shows an atomic force microscope image (1 ⁇ m field of view) of the surface of a healthy tooth
- FIG. 7C shows a fluorescence imaging image of the healthy tooth.
- the shape of the enamel particles is almost uniform in healthy teeth (see FIG. 7B), and the enamel 101 is less likely to be diffusely reflected and appears dark in the fluorescence image (FIG. 7C). reference).
- FIG. 8A shows a visible light photograph image of an unhealthy tooth
- FIG. 8B shows an atomic force microscope image (5 ⁇ m field of view) of the surface of an unhealthy tooth
- FIG. 8C shows a fluorescence imaging image of an unhealthy tooth.
- irregular enamel particles are scattered in unhealthy teeth (see FIG. 8B), and the enamel 101 is reflected brightly in the fluorescence imaging image due to irregular reflection of light (FIG. 8C). reference).
- the normalization unit 23 normalizes the gray scale values of the plurality of evaluation points with the gray scale values of the reference points in the gray scale image. For example, the normalization unit 23 normalizes the gray scale values of the plurality of evaluation points by dividing the gray scale values of the plurality of evaluation points by the gray scale value of the reference value. In this case, if the evaluation point is darker than the reference point in the grayscale image, the normalized value of the evaluation point is larger than 1. On the other hand, if the brightness of the reference point and the evaluation point are substantially the same, the normalized value of the evaluation point is approximately 1.
- the difference between the gray scale value of the reference point and the gray scale value of the evaluation point can be a normalized value.
- the tooth health determination data generation unit 24 generates tooth health determination data that visually represents the gray scale value of the reference point and the gray scale values of the plurality of evaluation points in the gray scale image.
- the tooth soundness determination is performed by adding the grayscale values of the reference point and the plurality of evaluation points to the fluorescence imaging image of the tooth imaged by the imaging device 10 or the grayscale image converted by the grayscale conversion unit 21.
- the tooth soundness determination data may be obtained by adding the grayscale values of a plurality of evaluation points normalized by the normalization unit 23 to the fluorescence imaging image of the tooth or the grayscale image thereof, that is, the normalized value. Can do.
- the tooth health determination data generation unit 24 uses the gray scale value of the reference point and the gray of the plurality of evaluation points as the tooth health determination data.
- a graph representing the aging of the scale value can be generated.
- the display device 30 is a device that displays the tooth health determination data generated by the tooth health determination support device 20.
- the dentist can determine the soundness of the teeth by looking at the data for determining the soundness of the teeth displayed on the display device 30.
- FIG. 4A shows a fluorescence imaging image of a child's tooth taken by a regular dental examination.
- Each fluorescence imaging image in FIG. 4A images the occlusal surface of the upper right first molar of this child.
- the child's teeth had no caries for six years. That is, FIG. 4A shows an example of a fluorescence image of “strong teeth”.
- Periodic dental examinations are carried out every spring and autumn, but for these children, fluorescence imaging images of teeth have not been acquired in the first-year spring and first-year autumn regular dental examinations.
- the graph of FIG. 4B shows the secular change of each gray scale value of the reference point and seven evaluation points obtained by analyzing the fluorescence imaging image of FIG. 4A.
- a point at the largest ridge is set as a reference point, and seven points at the edge are set as evaluation points.
- the graph is displayed on the display device 30.
- the reference point and the evaluation point could not be set, and the gray scale values of the fifth grade autumn reference point and the evaluation point could not be acquired. Absent.
- the gray scale value of the reference point changes while maintaining a state smaller than the gray scale value of the evaluation point. Furthermore, with strong teeth, there is a tendency that the gray scale values of all points of the reference point and the evaluation point increase with time (appear dark in the gray scale image).
- 4C is a graph obtained by normalizing the gray scale value of FIG. 4B.
- the graph is displayed on the display device 30.
- the normalized value of the evaluation point is approximately 1.5 or more, and is often 2 or more.
- FIG. 5A shows a fluorescence imaging image of another child's tooth imaged in a regular dental examination.
- Each fluorescence imaging image in FIG. 5A images the occlusal surface of this child's upper right first molar.
- the child's teeth are carious and filled with caries during a regular dental examination in the fall of third grade. That is, FIG. 5A shows an example of a fluorescence image of “weak teeth”.
- the graph of FIG. 5B shows the secular change of each gray scale value of the reference point and the three evaluation points obtained by analyzing the fluorescence imaging image of FIG. 5A.
- a point at the maximum ridge is set as a reference point, and three points at the edge are set as evaluation points.
- the graph is displayed on the display device 30.
- the gray scale value of the reference point and the gray scale value of the evaluation point are substantially similar values. Further, with weak teeth, the gray scale values of all the reference points and evaluation points vary with time but do not tend to increase over time (they appear dark in the gray scale image).
- the graph of FIG. 5C is obtained by normalizing the gray scale value of FIG. 5B.
- the graph is displayed on the display device 30.
- the normalized value of the evaluation point is approximately 1.2 or less and may be 1 or less.
- FIG. 6A shows a fluorescence imaging image of still another child's tooth imaged by a regular dental examination.
- Each fluorescence imaging image in FIG. 6A images the occlusal surface of this child's upper right first molar.
- the child's teeth showed initial caries. That is, FIG. 6A shows an example of a fluorescence image of “weak teeth”.
- the graph of FIG. 6B shows the secular change of each gray scale value of the reference point and the three evaluation points obtained by analyzing the fluorescence imaging image of FIG. 6A.
- a point at the maximum ridge is set as a reference point, and three points at the edge are set as evaluation points.
- the graph is displayed on the display device 30.
- the gray scale values of all the reference points and evaluation points fluctuate with time, but do not show a tendency to increase with time (appear dark in the gray scale image).
- the graph in FIG. 6C is obtained by normalizing the gray scale value in FIG. 6B.
- the graph is displayed on the display device 30.
- the normalized value of the evaluation point is about 1.4 for weak teeth.
- the above reference points and evaluation points can be automatically set by the gray scale value acquisition unit 22 as follows, for example. 9A and 9B show a processing procedure of a gray scale image obtained by imaging a tooth.
- the gray scale value acquisition unit 22 trims and converts unnecessary portions around the teeth in the fluorescence imaging image obtained by imaging the fluorescence of the teeth irradiated with the excitation light into a gray scale image.
- the contour that is, the entire image of the tooth is extracted.
- the gray scale value acquisition unit 22 obtains the center of gravity or the center Pctr of the entire tooth image, and sets the point of maximum luminance in the entire tooth image as the reference point Pref.
- the gray scale value acquisition unit 22 sets the 0 degree axis L0 connecting the center of gravity or the center Pctr and the reference point Pref, and passes through the center of gravity or the center Pctr to the 0 degree axis L0.
- a plurality of virtual lines L * forming a predetermined angle ⁇ are set. Note that ⁇ can be set, for example, in increments of 5 ° within a range of relative angles given to the 0 degree axis L0. The range of the relative angle and ⁇ can be arbitrarily set by the user.
- the gray scale value acquisition unit 22 determines a plurality of evaluation points Peva at points on the virtual lines L * that are separated from the tooth edges by a predetermined distance in the center of gravity or the center Pctr direction. Set as. In this way, the reference point and the evaluation point are automatically set.
- FIG. 10A is a graph showing the brightness of each evaluation point in the tooth image illustrated in FIG. 9B.
- FIG. 10B is a graph showing the normalized value of each evaluation point in the tooth image illustrated in FIG. 9B.
- the normalization unit 23 then normalizes the gray scale value of the evaluation point, and the tooth health determination data generation unit 24 is as shown in FIGS. 10A and 10B. Generate a graph.
- a fluorescence imaging image of a tooth is captured by the imaging device 10, and the fluorescence imaging image is analyzed by the tooth health determination support device 20 to obtain a tooth health. Sex determination data is generated, and the tooth health determination data is displayed on the display device 30.
- the dentist can comprehensively determine the health of a tooth, such as whether it is a strong tooth or a weak tooth, with reference to the tooth health determination data displayed on the display device 30.
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Abstract
Description
10 撮像装置
20 歯健全性判定支援装置
21 グレースケール変換部
22 グレースケール値取得部
23 正規化部
24 歯健全性判定用データ生成部
30 表示装置
Claims (7)
- 励起光が照射された歯の蛍光を撮像した蛍光撮像画像をグレースケール画像に変換するグレースケール変換部と、
前記グレースケール画像中の歯の画像において基準点および複数の評価点のグレースケール値を取得するグレースケール値取得部と、
前記基準点のグレースケール値と前記複数の評価点のグレースケール値を視覚的に表す歯健全性判定用データを生成する歯健全性判定用データ生成部とを備えた歯健全性判定支援装置。 - 前記基準点のグレースケール値で前記複数の評価点のグレースケール値を正規化する正規化部を備え、
前記歯健全性判定用データ生成部は、前記歯健全性判定用データにおいて、前記正規化部によって正規化された前記複数の評価点のグレースケール値を視覚的に表す、請求項1に記載の歯健全性判定支援装置。 - 前記正規化部は、前記複数の評価点のグレースケール値を前記基準点のグレースケール値で除算することで前記複数の評価点のグレースケール値を正規化する、請求項2に記載の歯健全性判定支援装置。
- 前記歯健全性判定用データ生成部は、前記歯健全性判定用データとして、前記基準点のグレースケール値および前記複数の評価点のグレースケール値の経年変化を表すグラフを生成する、請求項1ないし請求項3のいずれかに記載の歯健全性判定支援装置。
- 前記基準点が歯の咬合面における最大豊隆部における点であり、
前記評価点が歯の辺縁部における点である、請求項1ないし請求項4のいずれかに記載の歯健全性判定支援装置。 - 前記グレースケール値取得部は、前記グレースケール画像から歯の全体画像を抽出して前記歯の全体画像の重心または中心を求め、前記歯の全体画像中の最大輝度の点を前記基準点に設定し、前記重心または中心を通り前記重心または中心と前記基準点とを結ぶ0度軸に対して所定角をなす複数の仮想線上で前記歯の縁から前記重心または中心方向に所定距離だけ離れた位置にある点を前記複数の評価点に設定する、請求項1ないし請求項5のいずれかに記載の歯健全性判定支援装置。
- 請求項1ないし請求項6のいずれかに記載の歯健全性判定支援装置と、
歯に励起光を照射して該歯の蛍光を撮像して蛍光撮像画像を生成する撮像装置と、
前記歯健全性判定支援装置によって生成された歯健全性判定用データを表示する表示装置とを備えた歯健全性判定支援システム。
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US16/099,824 US10842383B2 (en) | 2016-05-10 | 2017-05-10 | Dental health assessment assisting apparatus and dental health assessment assisting system |
JP2017550647A JP6516866B2 (ja) | 2016-05-10 | 2017-05-10 | 歯の健全性判定支援装置および歯の健全性判定支援システム |
CN201780029002.5A CN109640877A (zh) | 2016-05-10 | 2017-05-10 | 牙齿健康性判定辅助装置和牙齿健康性判定辅助系统 |
KR1020187035701A KR20190007451A (ko) | 2016-05-10 | 2017-05-10 | 치아 건전성 판정 지원장치 및 치아 건전성 판정 지원시스템 |
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KR102664936B1 (ko) * | 2024-03-29 | 2024-05-10 | 주식회사 세연아이앤씨 | 이미지 기반의 구조물 건전성 평가 방법 및 구조물 건전성 평가 프로그램 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005069807A (ja) * | 2003-08-22 | 2005-03-17 | Matsushita Electric Ind Co Ltd | 歯表面観察装置 |
JP2009501579A (ja) * | 2005-07-18 | 2009-01-22 | マンデリス,アンドレアス | 赤外光熱放射測定(ptr)および被変調レーザルミネセンス(lum)を使用して歯の欠陥を診断する方法および装置 |
JP2011011055A (ja) | 2009-06-19 | 2011-01-20 | Carestream Health Inc | 齲蝕定量方法 |
JP2011087929A (ja) * | 2009-10-14 | 2011-05-06 | Carestream Health Inc | 歯の領域を識別するための方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4652800B2 (ja) * | 2004-12-21 | 2011-03-16 | 正樹 神原 | 歯科用検査装置 |
US7577284B2 (en) * | 2006-04-21 | 2009-08-18 | Carestream Health, Inc. | Optical detection of dental caries |
JP5362309B2 (ja) | 2008-09-30 | 2013-12-11 | テルモ株式会社 | 血糖値情報処理装置、血糖値情報表示シート及び患者指導用血糖値データ表示シート |
US20100279248A1 (en) * | 2009-03-05 | 2010-11-04 | Mourad Pierre D | Device and method for predicting the likelihood of caries development |
US9235901B2 (en) * | 2009-10-14 | 2016-01-12 | Carestream Health, Inc. | Method for locating an interproximal tooth region |
US20120261848A1 (en) * | 2009-12-23 | 2012-10-18 | Haraszati Gyoergy | Method to create removable dental prosthesis, and the dental prosthesis making thereof |
US9436868B2 (en) * | 2010-09-10 | 2016-09-06 | Dimensional Photonics International, Inc. | Object classification for measured three-dimensional object scenes |
US9157733B2 (en) * | 2010-09-10 | 2015-10-13 | Dimensional Photonics International, Inc. | Method of data acquisition for three-dimensional imaging |
US9300883B2 (en) * | 2010-11-05 | 2016-03-29 | Examastica Co. | Imaging device, image processing method for image captured by imaging device, and imaging system |
WO2012129160A2 (en) * | 2011-03-21 | 2012-09-27 | Carestream Health, Inc. | A method for tooth surface classification |
GB201115265D0 (en) * | 2011-09-05 | 2011-10-19 | Materialise Dental Nv | A method and system for 3d root canal treatment planning |
DE112013007194B4 (de) * | 2013-06-28 | 2021-09-02 | Media Co., Ltd. | Vorrichtung zur Untersuchung periodontaler Erkrankungen und Bildverarbeitungsprogramm, das die Vorrichtung zur Untersuchung periodontaler Erkrankungen verwendet |
JP5913519B2 (ja) * | 2014-10-22 | 2016-04-27 | 株式会社トプコン | 眼底観察装置 |
CN104574411A (zh) * | 2015-01-22 | 2015-04-29 | 北京交通大学 | 一种基于离体牙cbct的龋齿图像处理方法 |
-
2017
- 2017-05-10 EP EP17796179.4A patent/EP3459494B1/en active Active
- 2017-05-10 KR KR1020187035701A patent/KR20190007451A/ko not_active Application Discontinuation
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- 2017-05-10 CN CN201780029002.5A patent/CN109640877A/zh active Pending
- 2017-05-10 US US16/099,824 patent/US10842383B2/en active Active
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005069807A (ja) * | 2003-08-22 | 2005-03-17 | Matsushita Electric Ind Co Ltd | 歯表面観察装置 |
JP2009501579A (ja) * | 2005-07-18 | 2009-01-22 | マンデリス,アンドレアス | 赤外光熱放射測定(ptr)および被変調レーザルミネセンス(lum)を使用して歯の欠陥を診断する方法および装置 |
JP2011011055A (ja) | 2009-06-19 | 2011-01-20 | Carestream Health Inc | 齲蝕定量方法 |
JP2011087929A (ja) * | 2009-10-14 | 2011-05-06 | Carestream Health Inc | 歯の領域を識別するための方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3459494A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200016602A (ko) * | 2018-08-07 | 2020-02-17 | 연세대학교 산학협력단 | 치아 마모 정도를 평가하기 위한 정보제공방법 |
KR102133291B1 (ko) * | 2018-08-07 | 2020-07-13 | 연세대학교 산학협력단 | 치아 마모 정도를 평가하기 위한 정보제공방법 |
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KR20190007451A (ko) | 2019-01-22 |
EP3459494A4 (en) | 2020-01-15 |
EP3459494B1 (en) | 2022-07-27 |
US20190110690A1 (en) | 2019-04-18 |
CN109640877A (zh) | 2019-04-16 |
JPWO2017195819A1 (ja) | 2018-05-31 |
US10842383B2 (en) | 2020-11-24 |
JP6516866B2 (ja) | 2019-05-22 |
EP3459494A1 (en) | 2019-03-27 |
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