KR102128113B1 - Planning method of forming a dental membrane for implant procedure, Computer program for the same, and Recording medium storing computer program thereof - Google Patents

Abstract

According to an aspect of the present invention, a method of providing a plan for forming a shield for implant surgery using a computing means, 1) obtaining dental image data indicating the structure of teeth and alveolar bone-the dental image data Tooth shape data, alveolar bone shape data, and defect state data to which a fixture is to be placed; 2) three-dimensionally displaying an alveolar bone image and a tooth image including a bone defect part based on the dental image data; 3) displaying an image of a shielding mesh object in three dimensions to be in a state of covering the bone defects; And 4) on the basis of the image display state of the shield mesh object, obtaining the shape data for processing the real of the shield mesh; a planning method for forming a shield film for implant surgery comprising a.

Description

A planning method for forming a shielding film for an implant procedure and a computer program therefor, and a recording medium therefor, a computer program for the same, and a recording medium storing computer program thereof}

The present invention relates to a planning method for forming a shielding film for an implant procedure and a computer program therefor, and a recording medium therefor, to improve the convenience and accuracy of the shielding film forming operation in forming the shielding film used in the alveolar bone regeneration procedure for implant placement It relates to a planning method, a computer program therefor, and a recording medium.

The implant is a dental prosthesis that uses an artificial tooth by fixing a fixture in or on the jawbone for the purpose of supporting a prosthesis for the restoration of a missing tooth.

Implants are generally performed on elderly patients, but in many cases, alveolar bones are lost or fail to function properly due to loss of teeth function due to population aging or long-term neglect of dental defects.

If only the dental function is lost, the implant can be restored by implanting an artificial tooth. However, if the alveolar bone is lost, a new alveolar bone must be formed through bone graft and then the artificial tooth must be placed.

Alveolar bone grafts fill the bone graft material in the form of particles and keep it for a certain period of time, so that bone regeneration is achieved through the process of integrally binding the bone graft material to the alveolar bone defect.

During the process of regenerating the alveolar bone, in order to prevent the bone graft material from escaping outside the alveolar bone defect, a shielding film is installed outside the alveolar bone defect to secure a bone regeneration space. The shielding membrane provides a function of preventing invasion due to the growth of periodontal soft tissue into the inner part of the alveolar bone defect.

Typical shielding membranes currently being used include PTFE (polytetrafluoroethylene) membranes, collagen membranes, and titanium membranes.

As an example of the prior art, Korean Patent Registration No. 10-1510589 (registered on April 02, 2015) has proposed a technology related to PTFE membrane, Korean Patent Registration No. 10-0653850 (registered on November 28, 2006), registered in Korea Patent 10-1540559 (registered on July 24, 2015) proposed a technique for a titanium membrane.

Conventionally, preparation of the shielding film has been largely performed in two ways.

As an example, the operator selects and uses a model suitable for the shape of an alveolar bone defect of a patient to be treated from a variety of pre-made shields of a specific shape.

As another example, a method of cutting and bending a shielding mesh in the form of a bulk product that has not been processed into a specific shape is suitable for the shape of an alveolar bone defect of a patient to be treated. As a bulk product, a titanium thin film in the form of a rectangular thin plate is generally used, and the operator cuts the titanium film into an appropriate shape and size in consideration of the shape condition of an alveolar bone defect.

By the way, in the case of the conventional method as described above, since the model is selected in advance for shielding or cutting the shielding mesh to prepare the shielding, an attempt is made to install the shielding for the patient. If it is not suitable for the treatment site, there is a problem that a new shielding film needs to be prepared.

Accordingly, there is a problem that the previously prepared shielding film cannot be used and discarded, and time and cost are additionally required to prepare a new shielding film, or in some cases, the number of procedures for the patient may increase.

Republic of Korea Patent Publication 10-2010-0126700 (published on December 2, 2010) Republic of Korea Registered Patent 10-1793092 (Registration Date October 27, 2017)

The present invention has been devised in view of the above-mentioned conventional problems, and a planning method and a computer program for improving the convenience and accuracy of the shielding film forming operation in forming the shielding film used in the alveolar bone regeneration procedure for implant placement, The purpose is to provide the recording medium.

According to an aspect of the present invention for solving the above technical problem, as a method of providing a plan for forming a shield for implant surgery using a computing means, 1) to obtain dental image data showing the structure of the teeth and alveolar bone Step-The dental image data includes tooth shape data, alveolar bone shape data, and defect state data in which the fixture is to be placed; 2) three-dimensionally displaying an alveolar bone image and a tooth image including a bone defect part based on the dental image data; 3) displaying an image of a shielding mesh object in three dimensions to be in a state of covering the bone defects; And 4) on the basis of the image display state of the shield mesh object, obtaining the shape data for processing the real of the shield mesh; a planning method for forming a shield film for implant surgery comprising a.

Preferably, in the second step, the step of displaying the fixture object image indicating the placement position and direction of the fixture together with the alveolar bone image and the tooth image; is further configured to include.

Preferably, the third step includes: 31) displaying a shield-shaped mesh base object in a planar form; And 32) displaying the shielding mesh base object by bending processing based on the dental image data.

Preferably, the present invention is configured to include, after the 32nd step, 33) displaying a contact area with an adjacent value on the shielded mesh base object in a bent state.

Preferably, the present invention, after the 33 step, 34) displaying the image of the shielding mesh object in which the contact area is cut from the shielding mesh base object.

Preferably, in the step 32, the shielding mesh base object is characterized by displaying the bending process based on a user input.

Preferably, the present invention is characterized in that in step 32, the shielding mesh base object is automatically displayed by bending processing based on alveolar bone shape data including the bone defect.

Preferably, the present invention is characterized in that in step 32, the shielding mesh base object is displayed by bending processing based on alveolar bone shape data including the bone defect portion and bone graft material data filled in the bone defect portion.

Preferably, the present invention is characterized in that, in step 34, a cutting process for the touch area is executed and displayed based on a user input.

Preferably, the present invention is characterized in that, in step 34, a cutting process for the contact area is automatically executed and displayed based on the position and size data of the contact area.

Preferably, in step 4, the shape data is characterized in that it is outline shape data in a state in which a shield mesh object 3D displayed in step 3 is expanded in a flat mesh shape.

Preferably, in step 4, the shape data is characterized in that it is a 3D object shape data that enables a 3D printer to output a 3D printer with a shield mesh object displayed in 3D in step 3).

Preferably, the present invention, after the step 32, 33') the shielding mesh base object in the bending process and the adjacent value is displayed in an interference collision state; 34') displaying an image of which a part of the shield mesh base object is cut; And 35') generating a shield mesh object from the shield mesh base object in a partially processed state to display an image.

Preferably, in the step 34', the cutting processing is performed based on user input or based on a preset automatic cutting processing logic.

According to another aspect of the present invention, a computer program stored in a medium is disclosed in order to execute a planning method for forming a shielding film for implantation in combination with hardware.

According to another aspect of the present invention, a computer readable recording medium is disclosed in which a computer program for executing a planning method for forming a shielding film for implantation in a computer is recorded.

The present invention has the advantage of improving the convenience and accuracy of the shielding film forming operation in forming the shielding film used in the alveolar bone regeneration procedure for implant placement.

In addition, according to the present invention, since the preparation of the shielding film can be accurately performed at once, the shielding film is provided with the advantage of minimizing pain due to discomfort of the patient and incision of the gums due to an increase in the number of times or procedures that may occur due to incorrect preparation.

1 is a perspective view showing a state in which an implant fixture is placed on a defective portion,
Figure 2 is a schematic plan view showing the extraction groove of the missing portion,
Figure 3 is a schematic cross-sectional view showing the installation and removal process of the shield for dental procedures,
Figure 4 is another schematic cross-sectional view showing the installation and removal process of the shield for dental procedures,
FIG. 5 is a module configuration diagram of a computing means in which a planning method for forming a shield for implant surgery according to an embodiment of the present invention is executed;
Figure 6 is a perspective view showing an example of a shielding mesh in the form of a bulk product,
7 to 10 is a schematic diagram showing the process of the planning method for forming the shielding film for the implant procedure according to an embodiment of the present invention,
11 is a schematic two-dimensional view of the shielding film produced by the planning method for forming the shielding film for implant surgery according to an embodiment of the present invention,
12 is a schematic three-dimensional view of a shielding film produced by a planning method for forming a shielding film for implant surgery according to an embodiment of the present invention,
13 is an exemplary view of a screen for displaying dental image data of a patient,
14 is an exemplary view of a screen showing a process in which a fixture's implantation position and orientation data are set based on a patient's dental image data.

The present invention can be implemented in various other forms without departing from its technical spirit or main characteristics. Therefore, the embodiments of the present invention are merely illustrative in all respects and should not be interpreted as limiting.

Terms such as first and second are used only for the purpose of distinguishing one component from another component. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component.

When an element is said to be "connected" to or "connected" to another component, it may be directly connected to or connected to the other component, but other components may exist in the middle.

The singular expression used in the present application includes the plural expression unless the context clearly indicates otherwise. In this application, the terms "comprises", "haves", "have", etc. are intended to express the presence of a component or combination thereof described in the specification, and the possibility that another component or feature is present or added. It is not excluded in advance.

In the description of the present invention, when it is determined that detailed descriptions of related known technologies may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

1 is a perspective view showing a state in which an implant fixture is placed on a defective tooth site, and FIG. 2 is a plan view schematically showing a tooth extraction groove at a defective tooth site.

The planning method of this embodiment is in the process of finally obtaining the state in which the fixture 22 as shown in FIG. 1 is placed in the extraction groove 4'shown in FIG. 2, a shielding film for implanting the bone graft material in the bone defect part It is a planning method for obtaining shape data.

Reference numeral 4 denotes a gum, reference numeral 4'' denotes a defective region, and reference numeral 1'denotes an adjacent value of the defective value.

3 and 4 is a schematic cross-sectional view showing the process of installing and removing the shield for dental procedures, the planning method of this embodiment is the planning process for the bone graft procedure illustrated in Figure 3 (bone loss) or Figure 4 (bone deficiency) Can be applied to.

FIG. 3 illustrates a process in which a bone graft material 32 is filled with a bone graft material 2a in a state before the fixture 22 of the implant is placed in the alveolar bone 2 in the case of bone loss.

First, the gum 4 is incised to expose the bone defect 2a of the alveolar bone 2.

Next, the bone graft material 32 is filled in the bone defect part 2a. Reference numerals 4a and 4b denote gum incision sites.

The bone defect material 2a filled with the bone graft material 32 is covered with the shielding film 10. As an example, the shielding film 10 may use a mesh of a titanium thin plate material that can be bent in an appropriate angle and direction while being able to cover the entirety including the edge of the bone defect portion 2a, and the feature of the bone defect portion as shown in FIG. Can be planned to fit.

Next, the gum incision (4a, 4b) is closed.

Thereafter, since the growth rate of the bone tissue has individual differences, the growth of the bone tissue is checked by X-ray to confirm that the bone tissue is completely regenerated, and then the shielding film 10 is removed. In the case of a non-absorbent shielding film such as titanium or PTFE, removal is usually performed within 6 to 12 months after insertion into the periodontal tissue.

FIG. 4 illustrates a process in which a bone graft material 32 is filled with a bone graft material 2a in a state in which the fixture 22 of the implant is placed in the alveolar bone 2 in the case of bone deficiency. Reference numeral 24 denotes a cover screw among the implant screws.

First, the gum 4 is incised to expose the bone defect 2a of the alveolar bone 2.

Next, the cover screw 24 is removed from the fixture 22, and the bone graft material 32 is filled in the bone defect 2a. Reference numerals 4a and 4b denote gum incision sites.

The bone defect material 2a filled with the bone graft material 32 is covered with the shielding film 10.

Next, the cover screw 24 is fixed to the fixture 22 in a state that penetrates the shielding film 10.

Next, the gum incision (4a, 4b) is closed.

Thereafter, after confirming that the bone tissue has been completely regenerated, the shielding film 10 is removed.

5 is a module configuration diagram of a computing means in which a planning method for forming a shield for implant surgery according to an embodiment of the present invention is executed.

The computing means 1000 of the present embodiment generates and displays an alveolar bone image and a tooth image based on dental image data, generates and displays a shield mesh object based on the shield mesh base object, and based on this, creates a shield for implant surgery Provides planning information to form.

The computing means 1000 may be implemented through an ordinary computer having a CPU, memory, input/output means, and data storage means, and each function is provided by executing a computer program for providing the planning method of the present embodiment. .

To this end, the computing means 1000 of the present embodiment includes a data input unit 1150 for inputting dental image data of a patient such as CT images and intraoral scans obtained through computed tomography (CT) imaging. Dental image data processing module 1102 for converting and processing the converted dental image data into simulation data, and shape data processing for generating shape data for processing the real of the shield mesh based on the image display state of the shield mesh object Module 1104, a shield mesh data processing module 1106 for generating a shield mesh object based on the shield mesh base object and processing image simulation, and a planning process of the present embodiment (bending, cutting, and displaying for shield mesh generation) ), a planning module 1108 for processing and displaying the shielding formation planning, a control module 1110 for controlling general operations of the computing means 1000, a dental image, a shield mesh object image, and a shield mesh mesh base object image , A display module 1112 for displaying a fixture image and a bone graft material image according to a planning process, and a display 1160 for displaying a simulation screen for the planning results.

Further, the computing means 1000 of the present embodiment includes a dental image data storage unit 1120 for storing dental image data of a patient, a shape data storage unit 1130 for storing shape data of a shield mesh object, And a shield mesh library storage unit 1140 for storing shape data of the shield mesh base object for the healing abutment planning of the present embodiment in a library form.

The shielding mesh library storage unit 1140 stores shape data of actual shielding mesh commercial products of various sizes and standards that are the basis of the planning of the present embodiment. The commercially available shielding mesh product 110 has a structure in which a large number of lattice-shaped mesh holes 110b are formed on a thin plate-shaped mesh body 110a, an example of which is illustrated in FIG. 6.

In the shielding mesh library, the material, thickness, hole size and number of commercial products of bulk shielding mesh are input and set. In the case of the commercial product of the shielding mesh illustrated in FIG. 6, for example, a product having a size of 44*44 (mm) and a thickness of 0.1t, and a hole having a diameter of 0.6 (mm) arranged in a grid may be used.

Commercial products in bulk form of the shield mesh stored in the shield mesh library may be displayed on the screen of the computing means to have the same physical scale as the patient's dental image data as the shield mesh base object.

The functions of some modules provided by the computing means 1000 of this embodiment may be understood to be similar to those provided by known commercial products, such as DENTSPLY's SimplePlant and Surge Case. . For example, the functions of the data input unit 1150 and the dental image data processing module 1102 may be regarded as corresponding to these functions. These known commercial products generally provide a fixture placement simulation function for the alveolar bone, and a fixture placement simulation function using a known surgical guide. In one example, the computing means of this embodiment may provide the planning function of the shielding mesh together with the simulation function of such a commercial product.

13 is an exemplary view of a screen of a computing means for displaying dental image data of a patient, and shows the structure of teeth, alveolar bone, and gums of a patient in need of an implant procedure.

14 is an exemplary view of a screen showing a process in which a fixture's implantation position and orientation data are set based on a patient's dental image data. In one example, the implantation direction and position of the fixture is based on the input dental image data, the computing means calculates a range in which drilling is possible in three dimensions, and a user who executes a planning method using the computing means is within the drillingable range. It can be set in a manner of input setting the fixture placement direction line (center line of the fixture model in FIG. 14). The drillable range can be calculated by spatially considering interference with adjacent teeth of a missing tooth and whether or not there is a risk of nerve damage. It is also possible to be configured such that the optimal fixture placement direction and position are automatically set by the computing means. In addition, the placement direction and position of the fixture may be set together with simulation of a known surgical guide.

The planning method of this embodiment will be described with reference to the drawings.

6 is a perspective view showing an example of a shield mesh in the form of a bulk product, and FIGS. 7 to 10 are schematic diagrams showing a process in which a planning method for forming a shield for implant surgery according to an embodiment of the present invention is executed.

In step S1, the computing means obtains dental image data representing the structures of the teeth 1 and the alveolar bone 2. Preferably, the dental image data includes tooth shape data, alveolar bone shape data, and defect state data in which the fixture is to be placed.

The data of the present embodiment including dental image data are basically provided in the form of 3D spatial data, and may be displayed as a 2D cross-sectional image if necessary.

In the state of the missing tooth data, it is possible to obtain data on the shape data of the missing tooth (including the root portion) and the portion where the missing tooth comes into contact with the gum (the portion corresponding to the extraction groove) while the missing tooth has not yet been extracted. It is also possible to obtain groove shape data.

Next, in step S2, the computing means displays the alveolar bone 2 image and the tooth 1 image three-dimensionally including the bone defect part 2a based on the dental image data. This display state is illustrated in FIG. 7.

Preferably, in the step S2, the fixture object 22 image indicating the placement position and direction of the fixture may be displayed together with the alveolar bone 2 image and the tooth 1 image. The image of the fixture object 22 may be understood as, for example, an image in a state as shown in FIG. 4A, and may be displayed as an example of an actual screen. The image of the fixture object 22 may be displayed, for example, for shielding film planning during a bone graft procedure when a bone deficiency occurs as shown in FIG. 4.

Next, in step S3, the computing means displays the image of the shielding mesh object 10 in three dimensions to be in a state of covering the bone defect part 2a. The display state is illustrated in FIG. 10.

The step S3 may be made of the following detailed configuration.

In step S31, the computing means displays the shield-shaped mesh-based object 110 in a planar form (state 110 of FIG. 7).

In step S32, the computing means displays the shielding mesh base object 110 by bending processing based on the dental image data (bending state as shown by reference numeral 110 in FIG. 9).

For example, in step S32, the shielding mesh base object 110 may be displayed by the bending process based on a user input. In one example, user input may be through a common user console of the computing means.

As another example, in step S32, the shielding mesh base object 110 may be automatically displayed by bending processing based on alveolar bone shape data including the bone defect portion 2a. In one example, the automatic bending process is based on three-dimensional spatial data, and the curvature of the bending part takes into account the thickness of the alveolar bone 2 and the size of the upper surface (the surface covering the defective tooth area) of the shielding mesh base object 110. It is calculated, and the shielding mesh base object 110 may be formed in a manner of automatically calculating a three-dimensional bending shape so as to form a surface contact state with the inner surface and the outer surface of the alveolar bone 2. Since the process of generating the 3D modeling data can be performed using a known modeling data processing technique, detailed description is omitted.

On the other hand, in step S32, the shielding mesh base object 110 is bent and displayed based on the bone graft shape data including the bone defect portion 2a and the bone graft shape data filled in the bone defect portion 2a. Can be. The bone graft material 32 may be filled in the bone defect portion 2a, for example, as shown in FIG. 3(c) or FIG. 4(c). When the bone graft material 32 is filled in the bone defect part 2a, the planning condition is set to calculate the bone graft material shape data, and when bending is performed based on this, the bending part of the shield mesh base object 110 The curvature can be calculated closer to the actual state of the procedure. As an example, setting the planning condition in a state where the bone graft material 32 is filled in the bone defect part 2a may be accomplished by user input, and configured to input the filling amount of the bone graft material so that the user desires the filling amount. It might be.

In step S33, the computing means displays the contact area C with the adjacent value 1 ′ on the shielding mesh base object 110 in a bent state. The contact area (C) is divided into spatial data of the adjacent value (1') among the spatial data of the shielding mesh base object (110) having a bending plate shape, and is displayed by dividing it from the entire area of the plate shape of the area. It can be understood as.

In step S34, the computing means displays an image of the shield mesh object 10 in which the contact area C is cut from the shield mesh base object 110 (a state of being cut as indicated by reference numeral 10 in FIG. 10 ).

For example, in step S34, a cutting process for the touch area may be performed and displayed based on a user input. To this end, a cutting tool for graphically processing the cutting process within a display image is provided on the screen in the form of a graphic menu, and the cutting part line, which is being cut by the cutting tool, is graphically displayed on the shielding mesh base object 110. Can be displayed as

As another example, in step S34, a cutting process for the contact area may be automatically executed and displayed based on the position and size data of the contact area. For example, the automatic cutting process may be configured to automatically calculate an area larger than the contact area as the area to be cut in consideration of a preset cutting allowance from the shielding mesh base object 110 to be cut. At this time, if there is a sharp or pointed portion of the cutting portion of the shielding film, the cutting condition should be avoided in advance to avoid cutting across the middle of the hole 110b portion of the shielding mesh, since it may hurt the patient's gums during the actual procedure. Can be set. In addition, cutting conditions may be set so that an automatic cutting process is performed in consideration of the rounding process.

Meanwhile, as another example, a planning process may be configured as follows after step S32.

In step S33', the computing means displays the shielding mesh base object 110 and the adjacent value 1'in a state of being collided by bending. The interference-collision state means that parts that interfere with each other are displayed in a collision state so that they do not overlap each other spatially. In this way, the user can experience a planning process that is more similar to an actual offline procedure.

In step S34', the computing means displays an image in which a part of the shielding mesh base object 110 is cut.

At this time, the cutting process may be executed based on user input or based on a preset automatic cutting processing logic.

In step S35', the computing means generates a shield mesh object 10 from the shield mesh base object 110 in a partially processed state to display an image.

The shielding mesh object 10 may be formed to have an outline 10a, 10b, 10c, and 10d that does not interfere with adjacent teeth 1'while surrounding the upper surface of the alveolar bone 2 as shown in FIG. 10. , It may be formed to have a protrusion (10a) or recess (not shown) in consideration of the shape of the adjacent tooth (1') so that the bone graft material (32) filled in the bone defect (2a) does not leak out.

Next, in step S4, the computing means obtains shape data for processing the real object of the shielding mesh based on the image display state of the shielding mesh object 10.

For example, the shape data may be outline shape data in a state in which the shield mesh object 10 displayed in three dimensions in the step S3 is expanded in a flat mesh shape. FIG. 11 is a two-dimensional schematic view of a shielding film generated by a planning method for forming a shielding film for implant surgery according to an embodiment of the present invention, and illustrates a state in which the shielding mesh object 10 is expanded in a flat mesh form (xy Coordinate data). The two-dimensional shape data may be provided to the user as shape data for a practitioner to manufacture a shielding film by cutting an actual mesh commercial product in the form of a flat plate with a cutter or may be provided as processing data of a cutting machine. For example, the 2D shape data is printed and printed on paper through a general printer so that the user can manually use it as a paper main body attached to a mesh commercial product when cutting, or directly print and output to a sheet commercial mesh product. It can be configured to be cut manually by the user according to the output content.

As another example, the shape data may be 3D object shape data that enables the 3D printer to output the shield mesh object 10 3D displayed in 3D. 12 is a three-dimensional schematic diagram of a shielding film generated by a planning method for forming a shielding film for implant surgery according to an embodiment of the present invention, the shielding mesh object 10 can be output to a 3D printer with 3D object shape data The state created with is illustrated (xyz coordinate data). The 3D shape data may be provided as processing data for a user to print and manufacture a shield using a 3D printer.

Embodiments of the present invention include a program for performing various computer-implemented operations and a computer-readable medium recording the same. The computer-readable medium may include program instructions, data files, data structures, or the like alone or in combination. The media may be specially designed and constructed for the present invention, or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs, DVDs, and USB drives, magnetic-optical media such as floppy disks, and ROM, RAM, Hardware devices specifically configured to store and execute program instructions, such as flash memory, are included. Examples of program instructions include high-level language code that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler.

1: teeth
1': adjacent value
4: gum
2: alveolar bone
2a: bone defect
10: shield mesh object (or shield mesh)
22: Fixture
110: shielding mesh base object (or commercially available shielding mesh product)

Claims (16)

A computer program stored in a computer-readable medium for executing a planning method for forming a shield for implant surgery in combination with hardware of a computing means,
The planning method,
1) Obtaining dental image data indicating the structure of the teeth and alveolar bones, wherein the dental image data includes tooth shape data, alveolar bone shape data, and defect state data from which the fixture will be placed;
2) three-dimensionally displaying an alveolar bone image and a tooth image including a bone defect part based on the dental image data;
3) displaying an image of a shielding mesh object in three dimensions so as to cover the bone defects; And
4) based on the image display state of the shielding mesh object, obtaining shape data for processing the real thing of the shielding mesh;
Step 3 above,
31) displaying the base object of the planar shielding mesh;
32) displaying the shielding mesh base object by bending processing based on the dental image data; And
33) displaying a region of contact with an adjacent tooth on the shielded mesh base object in a bent state; a computer program stored in a computer readable medium.
According to claim 1,
In step 2 above,
And displaying a fixture object image indicating the placement position and direction of the fixture together with the alveolar bone image and the tooth image; and further comprising a computer readable medium.
delete delete According to claim 1,
After step 33,
34) displaying an image of the shielding mesh object in which the touch area is cut from the shielding mesh base object.
According to claim 1,
In step 32 above,
A computer program stored in a computer readable medium, characterized by displaying the shielding mesh base object by the bending process based on a user input.
According to claim 1,
In step 32 above,
A computer program stored in a computer readable medium, characterized in that the shielding mesh base object is automatically bent and displayed based on the alveolar bone shape data including the bone defect.
According to claim 1,
In step 32 above,
A computer program stored in a computer-readable medium, characterized in that the shielding mesh base object is bent and displayed based on alveolar bone shape data including the bone defect portion and bone graft material shape data filled in the bone defect portion.
The method of claim 5,
In step 34 above,
A computer program stored in a computer readable medium, characterized by executing cutting processing for the touch area based on a user input and displaying it.
The method of claim 5,
In step 34 above,
A computer program stored in a computer readable medium, characterized by automatically executing and displaying a cutting process for the contact area based on the position and size data of the contact area.
According to claim 1,
In step 4 above,
The shape data is a computer program stored in a computer-readable medium, characterized in that the contour mesh data in a state in which the shield mesh object displayed in three dimensions in the third step is expanded in a flat mesh shape.
According to claim 1,
In step 4 above,
The shape data is a computer program stored in a computer readable medium, characterized in that the three-dimensional object shape data to enable the 3D printer to output the shielding mesh object 3D displayed in the 3D step.
A computer program stored in a computer readable medium for executing a planning method for forming a shield for implant surgery in combination with hardware of a computing means,
The planning method,
1) Obtaining dental image data indicating the structure of the teeth and alveolar bones, wherein the dental image data includes tooth shape data, alveolar bone shape data, and defect state data from which the fixture will be placed;
2) three-dimensionally displaying an alveolar bone image and a tooth image including a bone defect part based on the dental image data;
3) displaying an image of a shielding mesh object in three dimensions so as to cover the bone defects; And
4) based on the image display state of the shielding mesh object, obtaining shape data for processing the real thing of the shielding mesh;
Step 3 above,
31) displaying the base object of the planar shielding mesh;
32) displaying the shielding mesh base object by bending processing based on the dental image data;
33') displaying the shielding mesh base object and an adjacent value in a state of interference collision in a bending-processed state;
34') displaying an image in which a part of the shielding mesh base object is cut; And
35') A computer program stored in a computer readable medium, comprising: a step of generating a shield mesh object from the shield mesh base object in a partially processed state to display an image.
The method of claim 13,
In step 34',
The cutting process is performed on the basis of user input or a preset automatic cutting processing logic, characterized in that the computer program stored in a computer-readable medium.
delete A computer-readable recording medium on which the computer program according to claim 1 or 13 is recorded.

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