WO2018066764A1

WO2018066764A1 - System and method for generating images for implant evaluation

Info

Publication number: WO2018066764A1
Application number: PCT/KR2017/000324
Authority: WO
Inventors: 김종철; 박광범
Original assignee: 주식회사 메가젠임플란트; 김종철
Priority date: 2016-10-06
Filing date: 2017-01-10
Publication date: 2018-04-12
Also published as: TWI633874B; TW201813596A; KR101812484B1; CN210446984U

Abstract

Disclosed is a system for generating images for an implant evaluation. The system for generating images for an implant evaluation according to the present invention comprises: a first image data acquisition unit for acquiring first three-dimensional image data of the oral cavity of a patient; a second image data acquisition unit for acquiring second three-dimensional image data by scanning plaster patterns of the teeth of the patient; and a data processing apparatus for generating composite three-dimensional image data by receiving and matching the first and second three-dimensional image data, wherein the data processing apparatus overlays a virtual fixture to be implanted in the patient onto the composite three-dimensional image data, and on the basis of the virtual fixture, visually displays the bone densities of the surroundings of the virtual fixture.

Description

Implant Diagnosis System and Its Generation Method

The present invention relates to an implant diagnosis image generating system and a method of generating the same, and more particularly, to an implant diagnosis image generating system and a method for generating the same used for the diagnosis and procedure planning of dental implants.

Dental implants originally meant a replacement that healed when human tissue was lost, but in dentistry, it refers to a series of procedures for implanting artificial teeth.

To replace the lost roots (roots), a fixture made of titanium, etc., which is not rejected by the human body, is planted in the alveolar bone where the teeth fall out, and the artificial teeth are fixed to restore the function of the teeth. It is a procedure to make.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged after time, but the implants do not damage the surrounding dental tissues.

Artificial tooth procedures (also called implants or implant procedures) vary depending on the type of fixture, but use a drill to drill the implantation position, then implant the fixture into the alveolar bone and fusion to the bone, then abutment the fixture After joining the abutments, it is usually done by putting the final prosthesis on the abutment.

Dental implants enhance the function of dentures, improve the aesthetics of dental prosthetic restorations, as well as dissipate excessive stress on surrounding supportive bone tissue, as well as single missing restorations. It also helps to stabilize the teeth.

Such dental implants generally include fixtures implanted as artificial roots, abutments joined on the fixtures, abutment screws securing the abutments to the fixtures, and abutments to the abutments. Includes artificial teeth. Here, the abutment may be coupled to the fixture to maintain the bonding state before the abutment is coupled to the fixture, that is, until the fixture is fused to the alveolar bone.

The fixture, which is a component of the dental implant, serves as an artificial tooth root as a part that is placed in a drill hole formed in the alveolar bone by using a drill or the like at the position where the implant is to be treated. Therefore, the fixture should be firmly placed in the alveolar bone.

The placement of such implants varies greatly from patient to patient, since the implantation position of the implant is determined by various factors such as the patient's tooth condition, the position of the tooth requiring the implant procedure, and the condition of the patient's alveolar bone.

In particular, the bone density of the alveolar bone is a very important factor in implant placement, and the placement position, depth and direction of the implant are determined according to the condition of the bone density of the patient.

On the other hand, as described above, since the implantation of the implant varies greatly from patient to patient, an image diagnosis system for implant diagnosis has been developed to help the doctor to accurately recognize the difference.

Implant diagnosis image generation system according to the prior art, by using a computer tomography (CT) to visually display the oral area of the patient to assist the simulation procedure, etc., which is very important in determining the implantation position, depth and orientation of the implant There is a problem that the indication of the bone density of the alveolar bone is provided in an inaccurate and difficult to recognize state.

In particular, the implant diagnosis image generation system according to the prior art displays the bone density of the alveolar bone only in achromatic shade, making it difficult for a doctor to recognize the bone density of the alveolar bone quickly, and only displays the bone density of the alveolar bone, and the virtual position where the implant is to be placed. There is a problem in that the time for the doctor to determine the optimal implant placement location is not provided because the bone density for each field is not provided individually.

Accordingly, an object of the present invention is to provide an image diagnosis system for implant diagnosis and a method of generating the same, which can visually display bone density of alveolar bone around a virtual position where a fixture is to be placed, based on the fixture.

According to an aspect of the invention, the first image information acquisition device for obtaining first stereoscopic image data for the oral region of the subject; A second image information acquisition device that scans the Plaster Patterns of Teeth of the subject to obtain second stereoscopic image data; And a data processing unit configured to receive the first stereoscopic image data and the second stereoscopic image data, match the matching, and generate integrated stereoscopic image data, wherein the data processor is configured to perform the operation on the integrated stereoscopic image data. When the virtual fixture to be placed in the superimposition, an implant diagnosis image generating system may be visually displayed on the basis of the virtual fixture to display the bone density around the virtual fixture.

The data processing apparatus may visually display a bone density of an area in contact with an outer contour of the virtual fixture.

The bone density around the virtual fixture may be displayed in different colors according to the numerical value of the bone density.

The color may be colored

The Plaster Patterns of Teeth may be provided with registration markers for matching the first stereoscopic image data with the second stereoscopic image data.

The matching reference markers may be provided in plural and may be spaced apart from each other.

The data processing apparatus includes an input unit for receiving information from a user; A generation unit which generates the integrated stereoscopic image data and is electrically connected to the input unit and corrects the integrated stereoscopic image data according to information input from the user; And a display unit electrically connected to the operation unit to visually display the integrated stereoscopic image data and the bone density around the virtual fixture.

The data processing apparatus may pre-match the first stereoscopic image data and the second stereoscopic image data based on the coordinates of the matching reference marker of the second stereoscopic image data. After the pre-matching step, the integration through a precise matching step of precisely matching the second stereoscopic image data to the first stereoscopic image data in the pre-matched integrated stereoscopic image data 3D image data can be generated.

In the pre-matching step, the calculator may further include a tooth region display area in which the tooth region of the subject is visually displayed in the first stereoscopic image data, and the second stereoscopic image data in the display area of the display unit. A second stereoscopic image data display zone to be displayed and an integrated stereoscopic image data display zone where the integrated stereoscopic image data is visually displayed, and the matching reference marker in the second stereoscopic image data display zone through the input unit; a coordinate of a marker), a virtual coordinate corresponding to the coordinate of the registration reference marker in the tooth region display zone, and the coordinate of the input reference marker. And pre-matching the virtual coordinates to the unified stereoscopic image data display area. Stereoscopic image data can be displayed.

In the precision matching step, the operation unit divides the display area of the display unit into a plurality of divided regions, and the plurality of divided regions of different planar images of the pre-matched integrated stereoscopic image data. The second stereoscopic image data may be input to the first stereoscopic image data in each of the divided regions through the input unit.

The plurality of divided areas may include: a first area in which a planar image obtained by cutting the pre-matched integrated stereoscopic image data into a first axis and a second axis intersecting the first axis; A second region in which a planar image cropped by a third axis intersecting the second axis and the second axis is shown at a position of a first moving point displayed in the first area; A third area in which a planar image cropped by the first axis and the third axis is shown at a position of a first moving point displayed in the first area; A fourth region in which a planar image cut along the second axis and the third axis is shown at a position of a second moving point displayed on the first area; A fifth region in which a planar image cut along the first axis and the third axis is shown at a position of a second moving point displayed on the first area; And a sixth region in which the planar image cut along the second axis and the third axis is shown at the position of the third moving point displayed on the first area.

The first to third moving points may be moved by the user's manipulation, and the images of the second area and the third area may be changed in conjunction with the movement of the first moving point, and the fourth area and The image of the fifth area may be changed in conjunction with the movement of the second moving point, and the image of the sixth area may be variable in conjunction with the movement of the third moving point.

According to another embodiment of the invention, the first image information acquisition step of acquiring the first stereoscopic image data for the oral region of the subject; Second image information obtaining step of acquiring second stereoscopic image data by scanning Plaster Patterns of Teeth of the subject; An integrated stereoscopic image data obtaining step of generating integrated stereoscopic image data by matching the first stereoscopic image data and the second stereoscopic image data; And a bone density display step of superimposing a virtual fixture to be implanted by the subject in the integrated stereoscopic image data, and visually displaying bone density around the virtual fixture based on the virtual fixture. An image generating method may be provided.

The bone density displaying step may visually display the bone density of an area in contact with an outer contour of the virtual fixture.

The color may be colored

The obtaining of the second image information may include: generating a plaster pattern of teeth of the operator; Providing a registration marker for registration of the first stereoscopic image data and the second stereoscopic image data in a plaster pattern of the subject; And scanning the plaster patterns of the operator (Plaster Patterns of Teeth).

In the acquiring of the integrated stereoscopic image data, the first stereoscopic image data and the second stereoscopic image data are pre-matched based on the coordinates of the matching reference marker of the second stereoscopic image data. -matching line matching step; And a precision matching step of precisely matching the second stereoscopic image data to the first stereoscopic image data in the pre-matched integrated stereoscopic image data.

In the line matching step, the display area of the screen provided to the user may include a tooth area display area in which the tooth area of the subject is visually displayed among the first stereoscopic image data, and a second area in which the second stereoscopic image data is visually displayed. Partitioning the stereoscopic image data display zone into an integrated stereoscopic image data display zone in which the integrated stereoscopic image data is visually displayed; A reference marker coordinate input step of inputting coordinates of the registration reference marker in the second stereoscopic image data display area; A virtual coordinate input step of inputting a virtual coordinate corresponding to the coordinate of the registration reference marker in the tooth region display area; And displaying the integrated stereoscopic image data pre-matched in the integrated stereoscopic image data display zone by matching the input coordinates of the matching reference marker and the virtual coordinates. Can contain

In the precise matching step, a display area of a screen provided to a user is divided into a plurality of divided areas, and different planar images of the pre-matched integrated stereoscopic image data are divided into the plurality of divided areas. Disposed in the field; And correcting the second stereoscopic image data to match the first stereoscopic image data in each of the divided regions.

The plurality of divided areas may include: a first area in which a planar image obtained by cutting the pre-matched integrated stereoscopic image data into a first axis and a second axis intersecting the first axis; A second region in which a planar image cropped by a third axis intersecting the second axis and the second axis is shown at a position of a first moving point displayed in the first area; A third area in which a planar image cropped by the first axis and the third axis is shown at a position of a first moving point displayed in the first area; A fourth region in which a planar image cut along the second axis and the third axis is shown at a position of a second moving point displayed on the first area; A fifth region in which a planar image cut along the first axis and the third axis is shown at a position of a second moving point displayed on the first area; And a sixth area in which a planar image cut along the second axis and the third axis is shown at the position of the third moving point displayed on the first area.

According to embodiments of the present invention, when a virtual fixture to be implanted by an operator is superimposed on the integrated stereoscopic image data, the user visually displays the bone density around the virtual fixture based on the virtual fixture, thereby allowing the user to visualize the virtual fixture. There is an advantage to be able to intuitively recognize the surrounding bone density.

1 is a diagram illustrating an image diagnosis system for implant diagnosis according to an embodiment of the present invention.

FIG. 2 is a view of the dental gypsum bone of FIG. 1.

3 and 4 are diagrams in which the bone density around the virtual fixture is visually displayed on the display unit of FIG. 1.

FIG. 5 is a diagram illustrating an implant diagnosis image generating method according to the implant diagnosis image generating system of FIG. 1.

6 and 7 illustrate screens of a display unit in a line matching step of the integrated stereoscopic image data acquisition step of FIG. 5.

8 and 9 illustrate screens of a display unit in a fine matching step of the integrated stereoscopic image data acquisition step of FIG. 5.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted to clarify the gist of the present invention.

Hereinafter, the first axis refers to the X axis, the second axis refers to the Y axis, and the third axis refers to the Z axis.

1 is a view showing an implant diagnosis image generating system according to an embodiment of the present invention, Figure 2 is a view showing a dental gypsum bone of Figure 1, Figures 3 and 4 are virtual to the display portion of FIG. Bone density around the fixture is a visual representation.

Implant diagnosis image generating system according to the present embodiment, as shown in Figures 1 to 4, the first image information acquisition device 110 for obtaining the first stereoscopic image data for the oral region of the subject, and the teeth of the subject The second image information acquisition device 120 scanning the plaster patterns of teeth (G) to obtain second stereoscopic image data, and receiving and matching the first stereoscopic image data and the second stereoscopic image data. And a data processor 130 to generate integrated stereoscopic image data.

The first image information obtaining apparatus 110 acquires first stereoscopic image data of an oral region of the subject. The first image information obtaining apparatus 110 of the present embodiment includes computed tomography (CT). The first stereoscopic image data of the present embodiment refers to a stereoscopic image implemented using a plurality of cross-sectional images. The scope of the present invention is not limited, and various stereoscopic image acquisition apparatuses, such as a magnetic resonance imaging apparatus, may be used as the first image information acquisition apparatus 110 of the present embodiment.

The second image information obtaining apparatus 120 scans the dental gypsum bone G of the subject to obtain second stereoscopic image data.

Dental gypsum bone (G) of the present embodiment is formed in the shape of the subject's teeth and gums, after the tray provided with the impression material is inserted into the oral cavity of the facilitator, the tooth of the subject presses the impression material, It is manufactured in the shape.

The dental gypsum bone G of the present embodiment is provided with a matching reference marker G2 for matching the first stereoscopic image data with the second stereoscopic image data.

The matching reference marker G2 serves as a reference coordinate for matching the first stereoscopic image data and the second stereoscopic image data, and the matching reference marker G2 of the second stereoscopic image data through the data processing device 130. ) Is used to generate the integrated stereoscopic image data through registration of virtual position coordinates corresponding to the matching reference marker G2 in the first stereoscopic image data.

The matching reference markers G2 of the present embodiment are provided in plural and are spaced apart from each other. In this embodiment, at least three matching reference markers G2 are provided, and at least three matching reference markers G2 are spaced apart from each other.

The registration reference marker G2 is formed of a structure or material that can be distinguished from the dental gypsum bone body G1 in the second stereoscopic image data.

The second image information obtaining apparatus 120 includes a 3D scanner (not shown) that scans the dental gypsum bone G to obtain second stereoscopic image data. The second stereoscopic image data of the present embodiment includes stereolithography (STL) data, and the stereolithography (STL) data may have an ASCII or binary format, and the stereoscopic object may be a 3D object in a 3D program. The modeling data is a data that expresses the surface of a three-dimensional object as a polygonal polygon so that it can be easily recognized by other types of 3D programs.

On the other hand, the data processing device 130 receives the first stereoscopic image data and the second stereoscopic image data and matches to generate the integrated stereoscopic image data.

The data processing apparatus 130 may include an input unit 131 that receives information from a user, an operation unit 132 that receives the first stereoscopic image data and the second stereoscopic image data, and generates integrated stereoscopic image data, and an operation unit ( And a display unit 133 that is electrically connected to 132 and visually displays integrated stereoscopic image data.

The input unit 131 is electrically connected to the operation unit 132 and receives control information from the user and transfers it to the operation unit 132.

The calculator 132 receives the first stereoscopic image data and the second stereoscopic image data, generates integrated stereoscopic image data, and visually displays the integrated stereoscopic image data on the display unit 133.

That is, the generation of the integrated stereoscopic image data is performed by the organic connection of the input unit 131, the display unit 133, and the calculation unit 132.

The generation of such integrated stereoscopic image data will be described in detail below, although it will be described later in detail.

The first three-dimensional image data obtained from the first image information acquisition device 110, such as a computed tomography (CT) device, compared to the advantage that can accurately grasp the bone shape of the subject, etc., inside the mouth of the subject There is a problem that an image may be distorted by various types of prostheses and prostheses.

Therefore, by scanning the dental gypsum bone (G) of the subject, the second stereoscopic image data, which contains very accurate information about the internal structure of the subject, and the first stereoscopic image data, which contains accurate information about the bone shape of the subject, are superimposed. Integrated stereoscopic image data should be generated, and a process of registering the first stereoscopic image data and the second stereoscopic image data is necessary to overlap the first stereoscopic image data and the second stereoscopic image data.

In the matching of the first stereoscopic image data and the second stereoscopic image data, the first stereoscopic image data and the second stereoscopic image data may be lined based on the coordinates of the matching reference marker G2 of the second stereoscopic image data. A pre-matching line matching step and a precise matching step of precisely matching the second stereoscopic image data to the first stereoscopic image data in the pre-matched integrated stereoscopic image data. do.

In the line matching step, the first stereoscopic image data and the second stereoscopic image data are quickly and approximately matched. In this line matching step, the line matching step is performed based on the coordinates of the matching reference marker G2 of the second stereoscopic image data. The first stereoscopic image data and the second stereoscopic image data are pre-matched.

In this line matching step, a screen as shown in FIGS. 6 to 7 is provided to the user on the screen of the display unit 133. The screen includes a tooth region display zone Z1 in which the tooth region of the subject is visually displayed among the first stereoscopic image data, and a second stereoscopic image data display zone Z2 in which the second stereoscopic image data is visually displayed. An integrated stereoscopic image data display zone Z3 in which stereoscopic image data is visually displayed is displayed.

The tooth region display zone Z1 visually displays the tooth region of the subject among the first stereoscopic image data. The tooth region of the subject displayed in the tooth region display zone Z1 may be selected by a control signal through the user's input unit 131.

In addition, the second stereoscopic image data is visually displayed in the second stereoscopic image data display zone Z2, and the integrated stereoscopic image data is visually displayed in the integrated stereoscopic image data display zone Z3.

In the screen of the display unit 133 illustrated in FIG. 6, the user inputs the coordinates of the matching reference marker G2 in the second stereoscopic image data display zone Z2 to the calculator 132. That is, when the user clicks the three registration reference markers G2 displayed on the second stereoscopic image data display zone Z2 through the input unit 131, for example, the mouse, the clicked coordinates are transmitted to the calculation unit 132. .

Thereafter, the user inputs virtual coordinates corresponding to the coordinates of the registration reference marker G2 in the tooth region display zone Z1 to the calculator 132. That is, the user compares the image of the tooth region displayed in the tooth region display region Z1 with the image of the dental gypsum bone G displayed in the second stereoscopic image data display region Z2 and then displays the image in the tooth region display region Z1. When the virtual position corresponding to the position of the registration reference marker G2 is clicked on the displayed image of the tooth region, the clicked coordinate is transmitted to the operation unit 132.

Thereafter, the operation unit 132 compares the coordinates of the input registration reference marker G2 with the virtual coordinates, overlaps the first stereoscopic image data and the second stereoscopic image data, and then adds them to the integrated stereoscopic image data display zone Z3. Pre-matching integrated stereoscopic image data in which second stereoscopic image data is superimposed on one stereoscopic image data is displayed.

In the integrated stereoscopic image data display zone Z3 of FIG. 6, only the first stereoscopic image data is displayed because no coordinate input by a user is performed. However, in the integrated stereoscopic image data display zone Z3 of FIG. 7, a matching reference marker ( Integrated stereoscopic images in which the second stereoscopic image data is pre-matched to the first stereoscopic image data as virtual coordinates corresponding to the coordinates of G2 and the coordinates of the matching reference marker G2 are input. The data is displayed.

In this line matching step, the user compares the image of the tooth region display zone Z1 with the image of the second stereoscopic image data display zone Z2, and the matching reference marker G2 is added to the image of the tooth region display zone Z1. Since the method of clicking a virtual position to be present is clicked, the degree of registration of the pre-matched integrated stereoscopic image data that has been pre-matched is not perfect but is pre-matched. Pre-matched integrated stereoscopic image data is almost matched.

Accordingly, in the precision matching step, the second stereoscopic image data is precisely matched to the first stereoscopic image data in the pre-matched integrated stereoscopic image data which is almost matched.

In the precise matching step, the screen as shown in FIGS. 8 to 9 is provided to the user on the screen of the display unit 133. That is, 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. Different planar images of integrated stereoscopic image data that are pre-matched are arranged in the plurality of partitions D1, D2, D3, D4, D5, and D6.

In this case, the planar images of the pre-matched integrated stereoscopic image data displayed on the plurality of partitions D1, D2, D3, D4, D5, and D6 may be the first stereoscopic image data and the second stereoscopic image. It is possible to distinguish the data (for example, appearance lines of the first stereoscopic image data and the second stereoscopic image data are expressed in different colors) so that the user can visually recognize whether or not they are matched.

As shown in FIG. 8 or 9, in the present exemplary embodiment, the display area of the screen provided to the user through the display unit 133 in the fine matching step includes the first to sixth divided areas D1, D2, D3, D4, and the like. D5, D6).

The first divided area D1 is a plane of pre-matched integrated stereoscopic image data and corresponds to a user's manipulation screen. In the present exemplary embodiment, an image obtained by cutting the integrated stereoscopic image data pre-matched on the X-Y axis plane is displayed.

Three moving points M1, M2, and M3 are displayed in the first partition, and when the user moves the input point through the input unit 131 such as a mouse, the second to sixth partitions D2, D3, D4, The image of D5, D6) is changed.

In the second divided area D2, an image cut in the Y-Z axis plane at the position of the first moving point M1 of the first divided area D1 is displayed. In the third divided area D3, an image cut in the X-Z axis plane at the position of the first moving point M1 of the first divided area D1 is displayed.

The images of the second divided area D2 and the third divided area D3 are located at the position of the first moving point M1 moved according to the movement of the first moving point M1 of the first divided area D1. Variable to flat image.

In the fourth divided area D4, an image cut in the Y-Z axis plane at the position of the second moving point M2 of the first divided area D1 is displayed. In the fifth divided area D5, an image cut in the X-Z axis plane at the position of the second moving point M2 of the first divided area D1 is displayed.

The images of the fourth divided area D4 and the fifth divided area D5 are located at the position of the second moving point M2 moved according to the movement of the second moving point M2 of the first divided area D1. Variable to flat image.

In the sixth divided area D6, an image cut in the Y-Z axis plane at the position of the third moving point M3 of the first divided area D1 is displayed. The image of the sixth divided area D6 is changed into a planar image at the position of the third moving point M3 moved according to the movement of the third moving point M3 of the first divided area D1.

8 and 9, the image of the second to sixth divided areas D2, D3, D4, D5, and D6 is changed according to the positional change of the first to third moving points M1, M2, and M3. You can see that.

Meanwhile, the images of the second to sixth division areas D2, D3, D4, D5, and D6 are affected by manipulation by the user's input unit 131. That is, an image such as a position and a posture of the second stereoscopic image data displayed on the second to sixth divided regions D2, D3, D4, D5, and D6 may be changed by a user's manipulation.

Therefore, the user moves the first to third moving points M1, M2, and M3, and the first stereoscopic image data and the second stereoscopic image data in the planar image of the integrated stereoscopic image data pre-matched at various sites. The stereoscopic image data is checked to be matched, and the first stereoscopic image data and the second stereoscopic image data are precisely matched by moving the second stereoscopic image data relative to the first stereoscopic image data through the input unit 131.

In this case, as described above, the planar images displayed on the first to sixth divided regions D1, D2, D3, D4, D5, and D6 are expressed in different colors, and thus, the first stereoscopic image data and the second stereoscopic image. Since the data can be divided, the user precisely matches the second stereoscopic image data by clicking and dragging the second stereoscopic image data through the input unit 131 such as a mouse.

The information of the state where the user precisely matches the image of the second stereoscopic image data to the image of the first stereoscopic image data using the input unit 131 is input to the calculating unit 132, and the calculating unit 132 pre-matches. (pre-matching) integrated stereoscopic image data by correcting the pre-matched integrated stereoscopic image data according to the information of the precisely matched state input by the input unit (131) Generate video data.

After generating the precisely matched integrated stereoscopic image data, the operation unit 132 superimposes the first stereoscopic image data on the second stereoscopic image data, and the portion corresponding to the second stereoscopic image data of the first stereoscopic image data is the second stereoscopic image. The final integrated stereoscopic image data is generated by replacing the image data.

After the generation of the integrated stereoscopic image data as described above is completed, the position of the fixture P to be placed in the subject in the integrated stereoscopic image data is determined. In this case, the user determines the position of the fixture P while overlapping the virtual fixture P to be placed by the operator on various positions of the integrated stereoscopic image data displayed on the display unit 133.

In the data processing apparatus 130 according to the present embodiment, when the virtual fixture P to be implanted in the integrated stereoscopic image data is superimposed on the virtual fixture P based on the virtual fixture P, Visually display bone density.

That is, in the present embodiment, when the virtual fixture P to be implanted by the operator is overlaid on the integrated stereoscopic image data, the operation unit 132 surrounds the virtual fixture P based on the virtual fixture P. FIG. Calculate your bone density.

In the present embodiment, 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, where the thread outer line of the fixture P is located. Bone density of the site.

The display unit 133 is electrically connected to the operation unit 132 and visually displays integrated stereoscopic image data (ie, displayed as a 2D plane image, a 3D image, or the like). The display unit 133 may display not only integrated stereoscopic image data but also first stereoscopic image data and second stereoscopic image data as visual images.

In addition, 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 calculator 132.

That is, as shown in FIGS. 3 and 4, the display unit 133 visually displays the bone density of the region in contact with the outer contour of the virtual fixture P calculated by the operation unit 132. In the present embodiment, the bone density around the virtual fixture P displayed on the display unit 133 is displayed in different colors according to the numerical value of the bone density.

In addition, in the present embodiment, the color displayed on the display unit 133 according to the numerical value of the bone density is made of chromatic color. As described above, the implant diagnosis image generating system of the present embodiment displays the bone density around the virtual fixture P in different colored hues according to the numerical value of the bone density, thereby allowing the user to display the bone density around the virtual fixture P. This has the advantage of being intuitively recognizable.

In the present embodiment, the high BMD is shown in yellow or green and the low BMD is shown in red or blue. The scope of the present invention is not limited thereto, and the BMD may be displayed in various other colors. .

Hereinafter, an implant diagnosis image generating method according to the implant diagnosis image generating system of the present embodiment will be described with reference to FIGS. 5 to 9.

5 is a view illustrating an implant diagnosis image generating method according to the implant diagnosis image generating system of FIG. 1, and FIGS. 6 and 7 illustrate screens of a display unit in a line matching step of the integrated stereoscopic image data acquisition step of FIG. 5. 8 and 9 are diagrams illustrating screens of a display unit in a precise registration step of the integrated stereoscopic image data acquisition step of FIG. 5.

Implant diagnosis image generating method according to the present embodiment, as shown in detail in Figure 5, the first image information acquisition step (S110) for obtaining the first three-dimensional image data for the oral region of the subject, and the dental gypsum of the subject The second image information acquisition step (S120) of scanning the bone (G) to obtain second stereoscopic image data, and matching the first stereoscopic image data and the second stereoscopic image data to generate integrated stereoscopic image data When the integrated stereoscopic image data acquisition step (S130) and the virtual fixture P to be implanted in the integrated stereoscopic image data are superimposed on the virtual fixture P based on the virtual fixture P, It includes a bone density display step (S140) for visually displaying the bone density.

In the first image information acquisition step (S110), first stereoscopic image data of the mouth region of the subject is obtained. In this first image information acquisition step (S110), as shown in FIG. 1, the first image information acquisition device 110 acquires first stereoscopic image data by photographing an oral region of a subject.

In the second image information acquisition step (S120), the second image information acquisition device 120 scans the dental gypsum bone G of the subject to obtain second stereoscopic image data.

In more detail, the second image information acquisition step (S120) of the present embodiment may include generating a dental gypsum bone (G) of the subject, and matching the reference marker G2 to the dental gypsum bone (G) of the subject. And preparing and scanning the dental gypsum bone G in which the registration reference marker G2 is provided.

In the preparing of the registration reference marker G2, the registration reference marker for registration of the stereoscopic image data on the dental gypsum bone body G1 of the subject manufactured in the step of generating the dental gypsum bone G ( G2) is formed.

The registration reference marker G2 provided in the dental gypsum main body G1 is used as a reference coordinate for registration of the first stereoscopic image data and the second stereoscopic image data in the integrated stereoscopic image data acquisition step S130.

In the integrated stereoscopic image data acquisition step (S130), the integrated stereoscopic image data is generated by matching the first stereoscopic image data and the second stereoscopic image data.

Therefore, by scanning the dental gypsum bone (G) of the subject, the second stereoscopic image data, which contains very accurate information about the internal structure of the subject, and the first stereoscopic image data, which contains accurate information about the bone shape of the subject, are superimposed. The integrated stereoscopic image data should be generated, and a matching process that must be accompanied for the superposition of the first stereoscopic image data and the second stereoscopic image data is performed in the integrated stereoscopic image data acquisition step (S130).

In the integrated stereoscopic image data acquisition step (S130), the first stereoscopic image data and the second stereoscopic image data are pre-aligned based on the coordinates of the matching reference marker G2 of the second stereoscopic image data. and a fine matching step (S132) for precisely matching the second stereoscopic image data to the first stereoscopic image data in the integrated stereoscopic image data pre-matched. Include.

The line matching step S131 is a method of quickly matching the first stereoscopic image data and the second stereoscopic image data. In this line matching step S131, the matching reference marker G2 of the second stereoscopic image data is performed. The first stereoscopic image data and the second stereoscopic image data are pre-matched based on the coordinates.

In the line matching step (S131), the display area of the screen provided to the user is visually displayed on the tooth region display zone Z1 in which the tooth region of the subject is visually displayed among the first stereoscopic image data, and the second stereoscopic image data is visually displayed. Partitioning the second stereoscopic image data display zone (Z2) and the integrated stereoscopic image data display zone (Z3) into which the integrated stereoscopic image data is visually displayed, and for registration in the second stereoscopic image data display zone (Z2). A reference marker coordinate input step of inputting the coordinates of the reference marker G2, a virtual coordinate input step of inputting virtual coordinates corresponding to the coordinates of the reference marker G2 for registration in the tooth region display area Z1, and input Displaying the integrated stereoscopic image data pre-matched in the integrated stereoscopic image data display zone Z3 by matching the coordinates of the matched reference marker G2 with the virtual coordinates. It includes.

Referring to FIGS. 6 to 7, the line matching step (S131) will be described. As shown in FIG. 6, the display area of the screen provided to the user through the display unit 133 is the tooth region of the subject among the first stereoscopic image data. This visually displayed tooth region display zone Z1, the second stereoscopic image data display zone Z2 in which the second stereoscopic image data is visually displayed, and the integrated stereoscopic image data display in which the integrated stereoscopic image data is visually displayed. It is partitioned into zone Z3.

The tooth region of the subject displayed in the tooth region display zone Z1 and the second stereoscopic image data displayed in the second stereoscopic image data display zone Z2 both represent the structure of the oral region of the subject. Since the second stereoscopic image data has more accurate information about the structure of the region, when generating the integrated stereoscopic image data, the structure of the oral cavity of the subject among the first stereoscopic image data is replaced with the second stereoscopic image data. For this replacement, the first stereoscopic image data and the second stereoscopic image data must be matched through the reference marker coordinate input step and the virtual coordinate input step.

In the reference marker coordinate input step, the coordinates of the matching reference marker G2 are input in the second stereoscopic image data display zone Z2. That is, when the user clicks the three registration reference markers G2 displayed on the second stereoscopic image data display zone Z2 through the input unit 131, for example, the mouse, the clicked coordinates are transmitted to the calculation unit 132. .

In the virtual coordinate input step, virtual coordinates corresponding to the coordinates of the matching reference marker G2 are input in the tooth region display zone Z1. That is, the user compares the image of the tooth region displayed in the tooth region display region Z1 with the image of the dental gypsum bone G displayed in the second stereoscopic image data display region Z2 and then displays the image in the tooth region display region Z1. When the virtual position corresponding to the position of the registration reference marker G2 is clicked on the displayed image of the tooth region, the clicked coordinate is transmitted to the operation unit 132.

Thereafter, in the displaying of the pre-matched integrated stereoscopic image data, the coordinates of the matching reference marker G2 input to the operation unit 132 are compared with the virtual coordinates, and the first stereoscopic image data is compared. Superimposed second stereoscopic image data and pre-matching integrated stereoscopic image data in which the second stereoscopic image data is superimposed on the first stereoscopic image data in the integrated stereoscopic image data display zone Z3. Display.

In the integrated stereoscopic image data display zone Z3 of FIG. 6, only the first stereoscopic image data is displayed since the reference marker coordinate input step and the virtual coordinate input step have not been performed, but the integrated stereoscopic image data display zone Z3 of FIG. It can be seen that the image of the integrated stereoscopic image data in which the second stereoscopic image data is superimposed on the first stereoscopic image data is displayed according to the reference marker coordinate input step and the virtual coordinate input step.

In the above-described virtual coordinate input step of the line registration step S131, the user compares the image of the tooth area display area Z1 with the image of the second stereoscopic image data display area Z2 to determine the area of the tooth area display area Z1. Since the image is clicked on an imaginary position where the reference marker G2 is to be placed in the image, the degree of registration of the pre-matched integrated stereoscopic image data passed through the line matching step S131 is perfect. Although not in a state, the pre-matching integrated stereoscopic image data which has undergone the line matching step S131 is almost matched.

Therefore, in the fine matching step (S132), the second stereoscopic image data is precisely matched with the first stereoscopic image data in the pre-matched integrated stereoscopic image data which is almost matched.

In the precise matching step S132, the display area of the screen provided to the user through the display unit 133 is divided into a plurality of divided areas, and different planar images of the integrated stereoscopic image data that are pre-matched. And disposing the plurality of divided regions, and correcting the second stereoscopic image data to match the first stereoscopic image data in each divided region.

As shown in FIG. 8 or 9, the display area of the screen provided to the user through the display unit 133 in the fine matching step S132 is divided into a plurality of divided areas D1, D2, D3, D4, D5, and D6. It is divided into Different planar images of integrated stereoscopic image data that are pre-matched are arranged in the plurality of partitions D1, D2, D3, D4, D5, and D6.

As shown in FIG. 8 or 9, in the present exemplary embodiment, the display area of the screen provided to the user through the display unit 133 in the fine matching step S132 is the first to sixth divided areas D1, D2, and D3. , D4, D5, and D6).

Meanwhile, the user may manipulate the scale of the first stereoscopic image data through the scale manipulation unit S displayed on the display area of the screen provided to the user through the display unit 133. The scale operation of the first stereoscopic image data causes the overall size of the first stereoscopic image data to be relatively changed with respect to the second stereoscopic image data when there is an overall size difference between the first stereoscopic image data and the second stereoscopic image data. The precision matching operation of the first stereoscopic image data and the second stereoscopic image data is further facilitated.

As described above, in the method for generating an image for diagnosis of implants according to the present embodiment, the integrated stereoscopic image data which is approximately pre-matched after preliminarily fast matching the first stereoscopic image data and the second stereoscopic image data is performed. By precise matching again, the matching accuracy can be increased while reducing the overall matching time.

Next, after the integrated stereoscopic image data acquisition step S130 is completed through the precision matching step S132, the user establishes a treatment plan. Bone density, such as the alveolar bone of the subject during the planning of the procedure is a very important factor, and determines the implantation position, depth and direction of the implant according to the state of the bone density of the subject.

Therefore, the bone density of the fixture (P) implantation site is very important. In the bone density display step (S140) of the present embodiment, the bone density of the fixture (P) implantation site is displayed very intuitively.

That is, in the bone density display step (S140) of the present embodiment, as shown in FIGS. 3 and 4, the virtual fixture P to be implanted in the subject is superimposed on the integrated stereoscopic image data, but the virtual fixture P is superimposed. As a reference, the bone density around the virtual fixture P is visually displayed.

In the bone density display step (S140), the bone density of the area in contact with the outer contour of the virtual fixture P calculated by the calculator 132 is displayed in different colors according to the numerical value of the bone density.

As described above, in the implant diagnosis image generating system and method according to the present embodiment, the bone density around the virtual fixture P is displayed in different colors according to the numerical value of the bone density, thereby allowing the user to surround the virtual fixture P. There is an advantage to be able to intuitively recognize the bone density of.

Although the present embodiment has been described in detail with reference to the drawings, the scope of the present invention is not limited to the above-described drawings and descriptions.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

The invention can be used in the medical industry, in particular in the dental medical industry.

Claims

A first image information acquisition device for acquiring first stereoscopic image data about an oral region of a subject;

A second image information acquisition device that scans the Plaster Patterns of Teeth of the subject to obtain second stereoscopic image data; And

And a data processing apparatus configured to receive the first stereoscopic image data and the second stereoscopic image data and match them to generate integrated stereoscopic image data.

The data processing device,

Implant diagnosis image generation system, characterized in that visually displays the bone density around the virtual fixture on the basis of the virtual fixture, if the virtual fixture to be implanted in the integrated stereoscopic image data is superimposed .
The method of claim 1,

And the data processing apparatus visually displays bone density of an area in contact with an outer contour of the virtual fixture.
The method of claim 1,

The bone density around the fictional fixture is

Implant diagnosis image generation system, characterized in that displayed in different colors according to the value of the bone density.
The method of claim 3,

Implant diagnosis image generation system, characterized in that the color is colored.
The method of claim 1,

Implant diagnosis image generation system, characterized in that the registration pattern markers for matching the first stereoscopic image data and the second stereoscopic image data is provided in the Plaster Patterns of Teeth.
The method of claim 5,

The matching reference markers are provided in plural, the implant diagnosis image generating system, characterized in that spaced apart from each other.
The method of claim 1,

The data processing device,

An input unit for receiving information from a user;

A generation unit which generates the integrated stereoscopic image data and is electrically connected to the input unit and corrects the integrated stereoscopic image data according to information input from the user; And

And a display unit electrically connected to the calculating unit and configured to visually display the integrated stereoscopic image data and the bone density around the virtual fixture.
The method of claim 7, wherein

The data processing device,

Pre-matching to pre-match the first stereoscopic image data and the second stereoscopic image data based on the coordinates of the reference marker for registration of the second stereoscopic image data. After the step, generating the integrated stereoscopic image data through a precise matching step of precisely matching the second stereoscopic image data to the first stereoscopic image data from the pre-matched integrated stereoscopic image data. Implant diagnosis image generating system, characterized in that.
The method of claim 8,

In the pre-matching step, the operation unit,

A display area of the display unit in which the tooth region of the subject is visually displayed among the first stereoscopic image data, a second stereoscopic image data display area in which the second stereoscopic image data is visually displayed; It is divided into the integrated stereoscopic image data display area where the integrated stereoscopic image data is visually displayed.

Receiving coordinates of the matching reference marker in the second stereoscopic image data display area through the input unit,

The virtual unit receives virtual coordinates corresponding to the coordinates of the registration reference marker in the tooth region display area through the input unit,

Implant diagnosis image for displaying the integrated stereoscopic image data pre-matched to the integrated stereoscopic image data display zone by matching the input coordinates of the registration reference marker and the virtual coordinates Generating system.
The method of claim 8,

In the precision matching step, the operation unit,

The display area of the display unit is divided into a plurality of divided areas,

Disposing different planar images of the pre-matched integrated stereoscopic image data in the plurality of partitions,

And a state in which the second stereoscopic image data is matched to the first stereoscopic image data in each of the divided regions through the input unit.
The method of claim 10,

The plurality of partitions,

A first region showing a planar image obtained by cutting the pre-matched integrated stereoscopic image data into a first axis and a second axis intersecting the first axis;

A second region in which a planar image cropped by a third axis intersecting the second axis and the second axis is shown at a position of a first moving point displayed in the first area;

A third area in which a planar image cropped by the first axis and the third axis is shown at a position of a first moving point displayed in the first area;

A fourth region in which a planar image cut along the second axis and the third axis is shown at a position of a second moving point displayed on the first area;

A fifth region in which a planar image cut along the first axis and the third axis is shown at a position of a second moving point displayed on the first area; And

And a sixth region in which a planar image cropped by the second and third axes is shown at a position of a third moving point displayed in the first region.
The method of claim 11,

The first to third moving point,

Movable by the user's operation,

Images of the second area and the third area are variable in conjunction with movement of the first moving point,

The images of the fourth area and the fifth area are varied in conjunction with the movement of the second moving point.

The image of the sixth region is implantable diagnosis image generation system, characterized in that the variable in conjunction with the movement of the third moving point.
First image information obtaining step of acquiring first stereoscopic image data of an oral region of a subject;

Second image information obtaining step of acquiring second stereoscopic image data by scanning Plaster Patterns of Teeth of the subject;

An integrated stereoscopic image data obtaining step of generating integrated stereoscopic image data by matching the first stereoscopic image data and the second stereoscopic image data; And

Implant diagnosis image comprising the step of superimposing the virtual fixture to be implanted in the integrated stereoscopic image data, the bone density display step of visually displaying the bone density around the virtual fixture on the basis of the virtual fixture How to create.
The method of claim 13,

In the bone density display step, the bone density of the area in contact with the outer contour (contour) of the virtual fixture visually displays the implant diagnostic image generating method.
The method of claim 13,

The bone density around the fictional fixture is

Implant diagnosis image generating method characterized in that the display in different colors according to the value of the bone density.
The method of claim 15,

The color generation method for diagnosing the implant, characterized in that the color.
The method of claim 13,

The second image information acquisition step,

Generating a plaster pattern of the subject (Plaster Patterns of Teeth);

Providing a registration marker for registration of the first stereoscopic image data and the second stereoscopic image data in a plaster pattern of the subject; And

Implant diagnosis image generation method comprising the step of scanning the plaster pattern (Plaster Patterns of Teeth) of the subject.
The method of claim 17,

The matching reference markers are provided in plural, the implant diagnostic image generating method, characterized in that spaced apart from each other.
The method of claim 17,

The integrated stereoscopic image data acquisition step,

A line matching step of pre-matching the first stereoscopic image data and the second stereoscopic image data based on the coordinates of the matching reference marker of the second stereoscopic image data; And

And a fine matching step of precisely matching the second stereoscopic image data to the first stereoscopic image data in the pre-matched integrated stereoscopic image data.
The method of claim 19,

The line matching step,

The display area of the screen provided to the user includes a tooth region display region in which the tooth region of the subject is visually displayed among the first stereoscopic image data, and a second stereoscopic image data display region in which the second stereoscopic image data is visually displayed. Partitioning the integrated stereoscopic image data into an integrated stereoscopic image data display zone;

A reference marker coordinate input step of inputting coordinates of the registration reference marker in the second stereoscopic image data display area;

A virtual coordinate input step of inputting a virtual coordinate corresponding to the coordinate of the registration reference marker in the tooth region display area; And

And matching the input coordinates of the matching reference marker and the virtual coordinates to display the pre-matched integrated stereoscopic image data in the integrated stereoscopic image data display area. Implant diagnostic image generation method.
The method of claim 19,

The precision matching step,

A display area of a screen provided to a user being partitioned into a plurality of partitions, and different planar images of the pre-matched integrated stereoscopic image data are disposed in the plurality of partitions; And

And correcting the second stereoscopic image data to match the first stereoscopic image data in each of the divided regions.
The method of claim 21,

The plurality of partitions,

A first region showing a planar image obtained by cutting the pre-matched integrated stereoscopic image data into a first axis and a second axis intersecting the first axis;

A second region in which a planar image cropped by a third axis intersecting the second axis and the second axis is shown at a position of a first moving point displayed in the first area;

A third area in which a planar image cropped by the first axis and the third axis is shown at a position of a first moving point displayed in the first area;

A fourth region in which a planar image cut along the second axis and the third axis is shown at a position of a second moving point displayed on the first area;

A fifth region in which a planar image cut along the first axis and the third axis is shown at a position of a second moving point displayed on the first area; And

And a sixth region in which a planar image cropped by the second axis and the third axis is shown at the position of the third moving point displayed in the first area.
The method of claim 22,

The first to third moving point,

Movable by the user's operation,

Images of the second area and the third area are variable in conjunction with movement of the first moving point,

The images of the fourth area and the fifth area are varied in conjunction with the movement of the second moving point.

The image of the sixth region is implantable diagnostic image generation method characterized in that the variable in conjunction with the movement of the third moving point.