WO2019124845A1 - Système de génération d'image et procédé pour le diagnostic d'implant - Google Patents

Système de génération d'image et procédé pour le diagnostic d'implant Download PDF

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Publication number
WO2019124845A1
WO2019124845A1 PCT/KR2018/015646 KR2018015646W WO2019124845A1 WO 2019124845 A1 WO2019124845 A1 WO 2019124845A1 KR 2018015646 W KR2018015646 W KR 2018015646W WO 2019124845 A1 WO2019124845 A1 WO 2019124845A1
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Prior art keywords
image data
stereoscopic image
tooth
matching
subject
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PCT/KR2018/015646
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English (en)
Korean (ko)
Inventor
김종철
박광범
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주식회사 키스톤
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Publication of WO2019124845A1 publication Critical patent/WO2019124845A1/fr

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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
    • A61B5/7425—Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30036—Dental; Teeth

Definitions

  • the present invention relates to an image generation system for an implant diagnosis and a method of generating the same, and more particularly, to an image generation system and method for an implant diagnosis used in diagnosis and treatment planning of a dental implant.
  • a dental implant is a substitute that restores when the original tissue is lost, but in dentists it refers to a series of procedures for implanting an artificial tooth.
  • a tooth fixture made of titanium or the like, which has no rejection to the human body, is planted in the alveolar bone that has exited the tooth, and then the artificial tooth is fixed to restore the function of the tooth .
  • the surrounding teeth and bones are damaged over time, but the implants do not injure the surrounding dental tissue, and they have the same function and shape as the natural teeth, but do not have cavities. Therefore, they can be used semi-permanently.
  • the artificial tooth procedure (also referred to as an implant or implant procedure) varies depending on the type of fixture, but after a predetermined drill is used to puncture the fixation position, the fixture is placed on the alveolar bone to perform an artificial fusion to the bone, After the abutments are combined, it is common to finish the abutment with a final prosthesis.
  • Dental implants enhance the function of dentures in single-tooth restorations, as well as in partial and total toothless patients, improve the aesthetic aspects of dental prosthesis restoration, and further dissipate excessive stresses on the surrounding supporting bone tissue It helps to stabilize the dentition as well as sikim.
  • a method of acquiring stereoscopic image data by capturing an image of a mouth area of a subject by using a computed tomography (CT) apparatus is used to acquire data on the mouth area of the subject.
  • CT computed tomography
  • CT data obtained from the computed tomography (CT) apparatus has advantages in that it can accurately grasp the shape of the bones of the patient, and it is difficult to grasp the shape of the gums accurately and various types of restorations And the image may be distorted by the implant.
  • the conventional method of obtaining the data on the tooth shape of the subject by three-dimensional scanning of the tooth plaster pattern made with the tooth shape of the wearer has a problem that it takes much time to manufacture the tooth plaster pattern.
  • a method of scanning a tooth shape of a subject by inserting a mouth scanner into the oral cavity of a subject is also used.
  • the light of the light source used in the mouth scanner is a metal prosthesis
  • Dimensional stereoscopic image data obtained by the oral scanner is distorted when the surface of the object having surface gloss is diffused.
  • a first image information obtaining unit that obtains first stereoscopic image data for an oral cavity region of the subject while a registration reference tray accommodating a impression member is disposed in an oral cavity of a subject;
  • a second image information acquiring unit for acquiring second stereoscopic image data for the registration reference tray and the impression member in a state in which the teeth of the subject are lifted up to the impression member;
  • a data processing device for receiving the second stereoscopic image data and generating tooth stereoscopic image data of the subject from the second stereoscopic image data.
  • the data processing apparatus can generate the tooth stereoscopic image data through the shape of the teeth of the subject who is pulled up to the impression member.
  • the data processing apparatus may generate the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data.
  • the data processing apparatus may generate the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data based on the coordinates of the matching reference tray.
  • the data processing apparatus includes an input unit for receiving information from a user; An operation unit for receiving the first stereoscopic image data and the tooth stereoscopic image data and generating integrated stereoscopic image data; And a display unit electrically connected to the operation unit and visually displaying the first stereoscopic image data, the tooth stereoscopic image data, and the second stereoscopic image data, wherein the data processing apparatus displays the tooth stereoscopic image data Dimensional image data and displaying the second stereoscopic image data on the second stereoscopic image data by matching the first stereoscopic image data and the second stereoscopic image data, and displaying the second stereoscopic image data and the first stereoscopic image data on which the tooth stereoscopic image data is displayed, A step of aligning the images of the first and second stereoscopic images on the basis of the coordinates of the trays for the first and second stereoscopic images, A tray removing step of removing the impression body and the first reference image data, Via a precision matching step of matching the precision dental
  • the operation unit divides the display region of the display unit into a plurality of divided regions, and the first and second stereoscopic image data and the tooth stereoscopic image data are superimposed on different plane images through the impression- And a state in which the tooth stereoscopic image data is matched to the first stereoscopic image data in the respective divided regions through the input unit.
  • the matching reference tray may be made of a radiopaque material.
  • a method of acquiring a stereoscopic image comprising the steps of: acquiring first stereoscopic image data for an oral cavity region of a subject in a state in which a registration reference tray accommodating a impression member is disposed in an oral cavity of a subject; A second image information acquiring step of acquiring second stereoscopic image data for the registration reference tray and the impression member in a state where the teeth of the subject are lifted up to the impression material; And a tooth image information generation step of generating the tooth stereoscopic image data of the subject by receiving the second stereoscopic image data from the second stereoscopic image data.
  • the tooth image information generating step may generate the tooth stereoscopic image data through the shape of the teeth of the subject who is pulled up to the impression member.
  • the integrated stereoscopic image data generation step may generate the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data based on the coordinates of the matching reference tray.
  • the integrated stereoscopic image data generation step may include a tooth-impression body matching step of matching the tooth stereoscopic image data with the second stereoscopic image data and displaying the matched second stereoscopic image data on the second stereoscopic image data; Matching the second stereoscopic image data and the first stereoscopic image data on which the tooth stereoscopic image data is displayed with a reference based on the coordinates of the matching reference tray; A impression-tray removing step of removing the impression member and the registration reference tray from the first and second stereoscopic image data that have been matched; And an accurate matching step of accurately matching the first stereoscopic image data and the tooth stereoscopic image data from which the impression member and the matching reference tray have been removed.
  • the precise matching step includes a step of removing the impression- Images are arranged in the plurality of divided areas; And correcting the tooth stereoscopic image data to match the first stereoscopic image data in each of the divided regions.
  • the matching reference tray may be made of a radiopaque material.
  • the embodiments of the present invention are directed to a second image information acquiring unit for acquiring second stereoscopic image data for a registration reference tray in a state in which a subject's teeth are pulled up to a pulling body and a second image information acquiring unit for receiving second stereoscopic image data, It is not necessary to fabricate a tooth plaster provided in the tooth shape of the subject person and the second stereoscopic image data is not directly scanned because the oral cavity of the subject is not scanned directly. It is possible to prevent the distortion by the prosthesis or the like and to acquire the three-dimensional stereoscopic image data on the tooth shape of the person to be inspected quickly and accurately.
  • FIG. 1 is a view illustrating an image generation system for an implant diagnosis according to an embodiment of the present invention.
  • FIG. 2 is a plan view showing the registration reference tray of FIG.
  • FIG. 3 is a view showing the tooth stereoscopic image data generated by the data processing apparatus of FIG.
  • 4 and 5 are views showing screens displayed when the integrated stereoscopic image data is generated in the display unit of FIG.
  • Figs. 6 and 7 are views showing the bone density around the virtual fixture visually on the display unit of Fig. 1.
  • Fig. 6 and 7 are views showing the bone density around the virtual fixture visually on the display unit of Fig. 1.
  • FIG. 8 is a diagram illustrating a method of generating images for implant diagnosis performed in the image forming system for implant diagnosis of FIG. 1;
  • FIG. 1 is a view showing an image generating system for an implant diagnosis according to an embodiment of the present invention
  • FIG. 2 is a plan view showing a registration reference tray of FIG. 1
  • FIG. 3 is a view
  • FIGS. 4 and 5 are views showing a screen displayed when the integrated stereoscopic image data is generated in the display unit of FIG. 1
  • FIGS. 6 and 7 are views showing a virtual three-
  • FIG. 8 is a diagram illustrating a method of generating an image for implant diagnosis performed in the image forming system for implant diagnosis of FIG. 1
  • FIG. 8 is a view showing the bone density around the fixture;
  • FIG. 1 is a view showing an image generating system for an implant diagnosis according to an embodiment of the present invention
  • FIG. 2 is a plan view showing a registration reference tray of FIG. 1
  • FIG. 3 is a view
  • FIGS. 4 and 5 are views showing a screen displayed when the integrated stereoscopic image data is generated in the display unit of FIG. 1
  • the matching reference tray T includes a bottom portion T1 supporting an impression body (not shown) and provided in an arc shape corresponding to the teeth of the subject, An outer side wall portion T2 connected to an outer edge region of the curved bottom portion T1 and protruding upward from the bottom portion T1 by a predetermined height, An inner side wall portion T3 connected to an inner edge region of the outer side wall portion T1 and protruding upward from the bottom portion T1 by a predetermined height and a handle portion T4 coupled to an outer wall of the outer side wall portion T2, .
  • the bottom portion T1 supports the impression member S.
  • the bottom portion T1 is provided in an arc shape so as to correspond to the teeth of the subject.
  • the bottom portion T1 is provided in a shape similar to the alphabetical character 'U'.
  • the outer sidewall and the inner sidewall are bent into an arc shape corresponding to the shape of the bottom portion T1.
  • the registration reference tray T is made of a radiopaque material. Therefore, the shape information of the matching reference tray T is displayed on the first stereoscopic image data obtained by the first image information obtaining unit 110. In this embodiment, the shape information of the matching reference tray T is And is used as a reference point in the matching process of the first stereoscopic image data and the second stereoscopic image data. The matching of the first stereoscopic image data and the second stereoscopic image data will be described later for convenience of explanation.
  • the first image information obtaining unit 110 obtains the first stereoscopic image data for the mouth region of the person to be inspected in a state in which the registration reference tray T accommodating the impression member S is disposed in the oral cavity of the person to be inspected .
  • the first image information obtaining unit 110 includes a computerized tomography (CT) apparatus, and the first stereoscopic image data of the present embodiment means a stereoscopic image implemented using a plurality of sectional images
  • CT computerized tomography
  • the scope of the present invention is not limited thereto, and various stereoscopic image acquisition apparatuses such as a magnetic resonance imaging apparatus can be used as the first image information acquisition unit 110 of the present embodiment.
  • the first stereoscopic image data obtained by the first image information acquiring unit 110 includes bone shapes of the facial bone, alveolar bone, etc. of the subject.
  • the first stereoscopic image data includes shape information of the registration reference tray (T).
  • the second image information obtaining unit 120 obtains second stereoscopic image data for the registration reference tray T and the impression member S in a state in which the subject's teeth are pulled up to the impression member S.
  • the second image information acquiring unit 120 of the present embodiment includes a pulling body S which is pressed by a subject and has a shape of a tooth of a person to be treated and a shape of a gum, Dimensional stereoscopic image information of the image (T).
  • the impression member S and the registration reference tray T are taken out through the second image information acquiring unit 120 without being separated Dimensional stereoscopic image information.
  • the second image information obtaining unit 120 obtains the second stereoscopic image data by photographing the impression body S and the matching reference tray T by using a X-ray Micro Computed Tomography -CT).
  • the second image information obtaining unit 120 of the present embodiment includes stereolithography (STL) data, and the stereolithography (STL) data may have an ASCII or binary format.
  • STL stereolithography
  • STL stereolithography
  • the data processing apparatus 130 receives the second stereoscopic image data and generates tooth stereoscopic image data of the subject from the second stereoscopic image data.
  • the data processing apparatus 130 of the present embodiment generates tooth stereoscopic image data through the shape of the teeth of the subject who is pulled up to the impression member S.
  • the shape of the pressed impression member S on the subject's teeth and gums is obtained. That is, since the teeth of the subject and the groove formed in the impression member S are pressed by the teeth and the gums, the teeth and the gums of the subject are affected by the teeth and the gums of the subject, Is generated.
  • the micro-CT used as the second image information acquiring unit 120 in this embodiment can form an image by a nondestructive technique up to a very small scale of a material, so that the impression of the subject's teeth and gums
  • the shape of the inner wall surface of the groove formed in the teeth S can be recognized with high precision, and the shape information of the tooth profile data of the person skilled in the art can be generated very precisely.
  • the data processing apparatus 130 may generate the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data.
  • the data processing apparatus 130 generates the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data with reference to the coordinates of the registration reference tray T.
  • the data processing apparatus 130 includes an input unit 131 for receiving information from a user, an operation unit 132 for receiving first stereoscopic image data and second stereoscopic image data and generating integrated stereoscopic image data, And a display unit 133 electrically connected to the display unit 132 for visually displaying the integrated stereoscopic image data.
  • the input unit 131 is electrically connected to the operation unit 132, receives control information from the user, and transmits the control information to the operation unit 132.
  • the operation unit 132 receives the first stereoscopic image data, the second stereoscopic image data, and the tooth stereoscopic image data and generates the integrated stereoscopic image data and visually displays the combined stereoscopic image data on the display unit 133.
  • the generation of the integrated stereoscopic image data is performed by the organic linkage of the input unit 131, the display unit 133, and the operation unit 132.
  • the first stereoscopic image data obtained from the first image information acquiring unit 110 such as a computed tomography (CT) mechanism has an advantage of being able to accurately grasp the shape of the bones of the patient, etc., There is a problem that images can be distorted by various types of restorations and implants.
  • CT computed tomography
  • the tooth stereoscopic image data generated by processing the second stereoscopic image data obtained by photographing the impression member S having the tooth shape of the subject's physician with a micro-CT It contains very precise information about the external structure such as.
  • the matching process of the first stereoscopic image data and the tooth stereoscopic image data includes a tooth-impression body matching step of matching the tooth stereoscopic image data with the second stereoscopic image data and displaying the matched second stereoscopic image data on the second stereoscopic image data, Matching the displayed second stereoscopic image data and the first stereoscopic image data on the basis of the coordinates of the reference tray for matching, pre-matching the displayed second stereoscopic image data with the first stereoscopic image data A step of removing a pulling body (S) and a registration reference tray (T) from the two-dimensional image data; And an accurate matching step of accurately matching the tooth stereoscopic image data.
  • S pulling body
  • T registration reference tray
  • the tooth stereoscopic image data is matched to the second stereoscopic image data and displayed on the second stereoscopic image data.
  • the tooth stereoscopic image data is formed by processing the second stereoscopic image data, the matching of the tooth stereoscopic image data and the second stereoscopic image data is very fast and simple.
  • the tooth stereoscopic image data is inserted and displayed in the depressed grooves formed in the teeth of the impression S of the second stereoscopic image data.
  • the second stereoscopic image data in which the tooth stereoscopic image data is displayed and the first stereoscopic image data are pre-matched based on the coordinates of the matching reference tray.
  • the matching reference tray T is displayed on the first stereoscopic image data and the matching reference tray T is displayed on the second stereoscopic image data as described above,
  • the first stereoscopic image data and the second stereoscopic image data are matched by a control signal through the second stereoscopic image display unit 131. Since the tooth stereoscopic image data is matched to the second stereoscopic image data, when the first stereoscopic image data and the second stereoscopic image data are matched, the tooth stereoscopic image data is also matched to the first stereoscopic image data.
  • the impression member S and the matching reference tray T are removed from the first matched image data and the second image data. Since the impression member S and the matching reference tray T are removed, but the tooth stereoscopic image data is not removed, the first stereoscopic image data in which the impression member S and the matching reference tray T are removed, The video data is superimposed.
  • the tooth stereoscopic image data is precisely matched to the first stereoscopic image data from which the impression member S and the matching reference tray T are removed.
  • the matching degree of the integrated stereoscopic image data through the impression body-tray removal step is almost perfect, but the matching may be finely broken in the working process, so that the matching of the first stereoscopic image data and the tooth stereoscopic image data And generates the integrated stereoscopic image data.
  • a screen as shown in Figs. 4 to 5 is provided on the screen of the display unit 133 to the user.
  • a plurality of divided areas D1, D2, D3, D4, D5, and D6 are displayed on the screen provided to the user through the display unit 133 in the precise matching step.
  • D2, D3, D4, D5, and D6 of the plurality of divided regions D1, D2, D3, D3, D4, D5, and D6 are subjected to the impression-tray removal step to place different plane images superimposed on the first stereoscopic image data and the tooth stereoscopic image data.
  • the plane images displayed on the plurality of divided regions D1, D2, D3, D4, D5, and D6 can be distinguished from the first stereoscopic image data and the tooth stereoscopic image data (for example, And the appearance lines of the tooth stereoscopic image data are expressed in different colors) so that the user can visually recognize the matching.
  • the display region of the screen provided to the user through the display unit 133 in the precise matching step in this embodiment is divided into the first to sixth divided regions D1, D2, D3, D4, D5, and D6.
  • (D1) is a plane image of data in which the first stereoscopic image data and the tooth stereoscopic image data are superimposed after the impression-tray removing step, and corresponds to the operation screen of the user.
  • the first divided area is displayed by cutting the data of the first stereoscopic image data and the tooth stereoscopic image data that are superimposed on the X-Y axis plane after the impression-tray removal step.
  • the second to sixth divided areas D2, D3, D4, D5, and D6 are changed.
  • an image cut in the Y-Z axis plane at the position of the first movement point M1 of the first division area D1 is displayed.
  • an image cut in the X-Z axis plane at the position of the first movement point M1 of the first divisional area D1 is displayed.
  • the images of the second and third divisional regions D2 and D3 are arranged at the positions of the first movement point M1 shifted in accordance with the movement of the first movement point M1 of the first divisional D1. Plane image.
  • the image of the first divisional area cut in the Y-Z axis plane at the position of the second movement point M2 of (D1) is displayed.
  • the fifth divisional area D5 an image cut in the X-Z axis plane at the position of the second movement point M2 of the first divisional area D1 is displayed.
  • the images of the fourth and fifth divisional regions D4 and D5 are shifted in the direction of the second shifting point M2 shifted in accordance with the movement of the second shifting point M2 of the first dividing region D1 Plane image.
  • An image cut in the Y-Z axis plane at the position of the third movement point M3 of the first divisional area D1 is displayed in the sixth divisional area D6.
  • the image of the sixth divisional area D6 is changed to a plane image at the position of the third moving point M3 shifted in accordance with the movement of the third movement point M3 of the first divisional area D1.
  • the images of the second through sixth divided areas D2, D3, D4, D5, and D6 are affected by the operation of the user through the input unit 131.
  • the images such as the position and attitude of the second stereoscopic image data displayed on the second to sixth divided areas D2, D3, D4, D5, and D6 can be changed by the user's operation.
  • the user moves the first to third movement points M1, M2, and M3 and, after passing through the impression body-tray removing step at various portions, It is checked whether the first stereoscopic image data and the tooth stereoscopic image data are matched in the image and the tooth stereoscopic image data is moved relative to the first stereoscopic image data through the input unit 131 to obtain the first stereoscopic image data and the tooth stereoscopic image data Precisely match.
  • the plane images displayed on the first through sixth divided areas D1, D2, D3, D4, D5, and D6 are represented by colors different from each other in appearance, so that the first stereoscopic image data and the tooth stereoscopic image data
  • the user can precisely match the tooth stereoscopic image data by clicking and dragging the tooth stereoscopic image data through the input unit 131 such as a mouse.
  • the calculating unit 132 superimposes the first stereoscopic image data on the tooth stereoscopic image data, replaces the portion corresponding to the tooth stereoscopic image data among the first stereoscopic image data with the tooth stereoscopic image data, Thereby generating integrated stereoscopic image data.
  • the position of the fixture P to be placed on the stereoscopic operator in the integrated stereoscopic image data is determined.
  • the user superimposes the virtual fixtures P to be placed on the physician on various positions of the integrated stereoscopic image data displayed on the display unit 133, and determines the position of the fixture P.
  • the data processing apparatus 130 of the present embodiment is configured such that when the virtual fixture P to be placed on the physician is superimposed on the integrated stereoscopic image data, Display the bone density visually.
  • the operation unit 132 calculates the virtual fixture P around the virtual fixture P Is calculated.
  • the bone density around the virtual fixture P refers to the bone density of the area in contact with the outer contour of the virtual fixture P, Bone density.
  • the display unit 133 is electrically connected to the arithmetic unit 132 and visually displays the integrated stereoscopic image data (that is, displayed as a two-dimensional plane image and a three-dimensional image).
  • the display unit 133 may display not only the integrated stereoscopic image data but also the first stereoscopic image data and the tooth stereoscopic image data as a visual image.
  • the display unit 133 of the present embodiment visually displays the bone density around the virtual fixture P based on the virtual fixture P calculated by the operation unit 132.
  • the display unit 133 visually displays the bone density of the area contiguous to the outer contour of the virtual fixture P calculated by the calculation unit 132.
  • the bone density around the virtual fixture P displayed on the display unit 133 in this embodiment is displayed in different colors depending on the value of the bone density.
  • the hue displayed on the display unit 133 according to the numerical value of the bone density is chromatic color.
  • a high bone density value is displayed in yellow or green, and a low bone density value is displayed in red or blue.
  • the scope of the present invention is not limited thereto, and the value of bone density can be displayed in various colors .
  • FIG. 1 a method for generating images for implant diagnosis of the present embodiment will be described with reference to FIGS. 1 to 8.
  • FIG. 1
  • the image generating method for an implant diagnosis is a method for acquiring first stereoscopic image data for an oral cavity region of a person to be treated in a state in which a registration reference tray T for accommodating the impression body S is disposed in the oral cavity of the subject
  • the first stereoscopic image data for the oral cavity region of the subject is acquired in a state in which the registration reference tray T accommodating the impression member S is disposed in the oral cavity of the subject.
  • the registration reference tray T is made of a radiopaque material, so that the shape information of the registration reference tray T is included in the first stereoscopic image data.
  • the second stereoscopic image data for the registration reference tray T and the impression member S are obtained in a state where the teeth of the subject are pulled up to the impression body S.
  • the data processing apparatus 130 receives the second stereoscopic image data and generates tooth stereoscopic image data of the subject from the second stereoscopic image data.
  • tooth stereoscopic image data is generated through the shape of the teeth of the subject who is pulled up to the impression member (S).
  • the second image information obtaining unit 120 is provided with a groove (formed in the teeth and gums of the subject) of the impression S, obtained by three-dimensionally scanning the impression S pressed by the subject's teeth and the gums, And the data processing device 130 receives the information on the tooth profile data of the subject and the teeth stereoscopic image data of the subject.
  • the integrated stereoscopic image data generation step S140 generates the integrated stereoscopic image data by matching the first stereoscopic image data and the tooth stereoscopic image data.
  • the first stereoscopic image data and the tooth stereoscopic image data are matched with the coordinates of the matching reference tray T as a reference.
  • the tooth stereoscopic image data is matched to the second stereoscopic image data and displayed on the second stereoscopic image data.
  • the tooth stereoscopic image data is formed by processing the second stereoscopic image data, the matching of the tooth stereoscopic image data and the second stereoscopic image data is very fast and simple.
  • the tooth stereoscopic image data is inserted and displayed in the depressed grooves formed in the teeth of the impression S of the second stereoscopic image data.
  • the second stereoscopic image data in which the tooth stereoscopic image data is displayed and the first stereoscopic image data are pre-matched based on the coordinates of the matching reference tray.
  • the matching reference tray T is displayed on the first stereoscopic image data and the matching reference tray T is displayed on the second stereoscopic image data as described above,
  • the first stereoscopic image data and the second stereoscopic image data are matched by a control signal through the second stereoscopic image display unit 131. Since the tooth stereoscopic image data is matched to the second stereoscopic image data, when the first stereoscopic image data and the second stereoscopic image data are matched, the tooth stereoscopic image data is also matched to the first stereoscopic image data.
  • the impression member S and the matching reference tray T are removed from the first matched image data and the second image data. Since the impression member S and the matching reference tray T are removed, but the tooth stereoscopic image data is not removed, the first stereoscopic image data in which the impression member S and the matching reference tray T are removed, The video data is superimposed.
  • the tooth stereoscopic image data is precisely matched to the first stereoscopic image data from which the impression member S and the matching reference tray T are removed.
  • the matching degree of the integrated stereoscopic image data through the impression body-tray removal step is almost perfect, but the matching may be finely broken in the working process, so that the matching of the first stereoscopic image data and the tooth stereoscopic image data And generates the integrated stereoscopic image data.
  • a screen as shown in Figs. 4 to 5 is provided on the screen of the display unit 133 to the user.
  • a plurality of divided areas D1, D2, D3, D4, D5, and D6 are displayed on the screen provided to the user through the display unit 133 in the precise matching step.
  • D2, D3, D4, D5, and D6 of the plurality of divided regions D1, D2, D3, D3, D4, D5, and D6 are subjected to the impression-tray removal step to place different plane images superimposed on the first stereoscopic image data and the tooth stereoscopic image data.
  • the plane images displayed on the plurality of divided regions D1, D2, D3, D4, D5, and D6 can be distinguished from the first stereoscopic image data and the tooth stereoscopic image data (for example, And the appearance lines of the tooth stereoscopic image data are expressed in different colors) so that the user can visually recognize the matching.
  • the display region of the screen provided to the user through the display unit 133 in the precise matching step in this embodiment is divided into the first to sixth divided regions D1, D2, D3, D4, D5, and D6.
  • the first divided area D1 is a plane of data in which the first stereoscopic image data and the tooth stereoscopic image data are superimposed after the impression-tray removing step, and corresponds to the operation screen of the user.
  • the first divided area is displayed by cutting the data of the first stereoscopic image data and the tooth stereoscopic image data that are superimposed on the X-Y axis plane after the impression-tray removal step.
  • the second to sixth divided areas D2, D3, D4, D5, and D6 are changed.
  • an image cut in the Y-Z axis plane at the position of the first movement point M1 of the first division area D1 is displayed.
  • an image cut in the X-Z axis plane at the position of the first movement point M1 of the first divisional area D1 is displayed.
  • the images of the second and third divisional regions D2 and D3 are arranged at the positions of the first movement point M1 shifted in accordance with the movement of the first movement point M1 of the first divisional D1. Plane image.
  • the image of the first divisional area cut in the Y-Z axis plane at the position of the second movement point M2 of (D1) is displayed.
  • the fifth divisional area D5 an image cut in the X-Z axis plane at the position of the second movement point M2 of the first divisional area D1 is displayed.
  • the images of the fourth and fifth divisional regions D4 and D5 are shifted in the direction of the second shifting point M2 shifted in accordance with the movement of the second shifting point M2 of the first dividing region D1 Plane image.
  • An image cut in the Y-Z axis plane at the position of the third movement point M3 of the first divisional area D1 is displayed in the sixth divisional area D6.
  • the image of the sixth divisional area D6 is changed to a plane image at the position of the third moving point M3 shifted in accordance with the movement of the third movement point M3 of the first divisional area D1.
  • the images of the second through sixth divided areas D2, D3, D4, D5, and D6 are affected by the operation of the user through the input unit 131.
  • the images such as the position and attitude of the second stereoscopic image data displayed on the second to sixth divided areas D2, D3, D4, D5, and D6 can be changed by the user's operation.
  • the user moves the first to third movement points M1, M2, and M3 and, after passing through the impression body-tray removing step at various portions, It is checked whether the first stereoscopic image data and the tooth stereoscopic image data are matched in the image and the tooth stereoscopic image data is moved relative to the first stereoscopic image data through the input unit 131 to obtain the first stereoscopic image data and the tooth stereoscopic image data Precisely match.
  • the plane images displayed on the first through sixth divided areas D1, D2, D3, D4, D5, and D6 are represented by colors different from each other in appearance, so that the first stereoscopic image data and the tooth stereoscopic image data
  • the user can precisely match the tooth stereoscopic image data by clicking and dragging the tooth stereoscopic image data through the input unit 131 such as a mouse.
  • the calculating unit 132 superimposes the first stereoscopic image data on the tooth stereoscopic image data, replaces the portion corresponding to the tooth stereoscopic image data among the first stereoscopic image data with the tooth stereoscopic image data, Thereby generating integrated stereoscopic image data.
  • the second image information acquisition process for acquiring the second stereoscopic image data for the registration reference tray T in a state in which the teeth of the patient are pulled up to the impression member S Unit 120 and a data processing device 130 that receives the second stereoscopic image data and generates the stereoscopic image data of the subject from the second stereoscopic image data
  • the second stereoscopic image data can be prevented from being distorted by the metal prosthesis or the like without directly scanning the oral cavity of the subject and the three-dimensional stereoscopic image data on the tooth shape of the subject can be obtained quickly and accurately.
  • the present invention can be used in the medical industry, particularly in the dental care industry.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Pulmonology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un système de génération d'image pour le diagnostic d'implant. Le système de génération d'image pour le diagnostic d'implant selon la présente invention comprend : une première unité d'acquisition d'informations d'image pour acquérir des premières données d'image tridimensionnelle de la région de cavité buccale d'un sujet dans un état dans lequel un plateau ayant des points de référence d'enregistrement pour recevoir un corps d'impression est placé dans la cavité buccale du sujet ; une seconde unité d'acquisition d'informations d'image pour acquérir des secondes données d'image tridimensionnelle du plateau avec des points de référence d'enregistrement et le corps d'impression dans l'état dans lequel les dents du sujet sont imprimées dans le corps d'impression ; et un dispositif de traitement de données pour recevoir les secondes données d'image tridimensionnelle et générer des données d'image de dents tridimensionnelles du sujet à partir des secondes données d'image tridimensionnelle.
PCT/KR2018/015646 2017-12-19 2018-12-11 Système de génération d'image et procédé pour le diagnostic d'implant WO2019124845A1 (fr)

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KR10-2017-0175480 2017-12-19

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KR20140130582A (ko) * 2013-05-01 2014-11-11 주식회사 메가젠임플란트 임플란트용 영상정보 획득장치
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KR20100016180A (ko) * 2007-04-20 2010-02-12 메디심 엔브이 형상 정보를 얻기 위한 방법
KR20100117385A (ko) * 2009-04-24 2010-11-03 이태경 마커를 구비한 트레이를 이용한 임플란트용 이미지 매칭 방법
JP2015533607A (ja) * 2012-11-08 2015-11-26 メガゲン・インプラント・カンパニー・リミテッドＭｅｇａｇｅｎ Ｉｍｐｌａｎｔ Ｃｏ．， Ｌｔｄ． インプラント映像生成方法およびインプラント映像生成システム
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