JP6829900B2 - Data generation method, denture manufacturing method, data generation program, data generation system - Google Patents

Description

The present invention relates to a data generation method, a denture manufacturing method, a data generation program, and a data generation system.

Oral implant treatment is widespread for regaining the function of lost teeth. Oral implant treatment is a technique in which a titanium implant body is implanted in the mandible of a lost tooth site and the implant body supports a denture. Temporary teeth may be used before the denture is made and attached to the implant body. FIG. 11 of Patent Document 1 shows a state in which a denture is attached to an implant body embedded in the alveolar bone.

Japanese Unexamined Patent Publication No. 2015-136428

The false tooth is created at the same time as the implant body is placed and attached to the implant body. In that state, it is allowed to stand for 2 to 6 months until osseointegration progresses. After the osseointegration has progressed, the false teeth are removed and the impression is taken with silicone impression material. A plaster model is created based on the obtained impression, and a denture is created based on the plaster model. The denture is attached to the implant body and the oral implant treatment is completed.

The position and angle of the implant body and the positional relationship between the false tooth and other teeth change as the false tooth is attached and the osseointegration progresses. Depending on the change, the shape of the false tooth is modified several times. Then, during the progress of osseointegration, gingiva is formed around the false tooth, and its shape follows the shape of the false tooth. By the end of the osseointegration period, the shape of the false tooth and the gingiva formed around it will be ideal for the patient.

However, when the denture is created, if the temporary tooth is removed to obtain an impression, the gingiva immediately starts to deform and changes from the ideal shape. Therefore, the plaster model created based on the obtained impression cannot reflect the ideal shape of the gingiva. Dentures created on the basis of such a plaster model are not ideally shaped for the patient.

In recent years, instead of obtaining an impression using a silicone impression material, a technique of acquiring the shape of a patient's oral cavity as 3D data by an intraoral scanner and creating a denture based on the 3D data has become widespread. Even in this method, the gingiva is deformed due to the removal of the temporary tooth, and the shape of the gingiva in the acquired 3D data is the shape after the deformation. Therefore, the denture created by the acquired 3D data cannot have an ideal shape.

In view of the above circumstances, an object of the present invention is to provide a means capable of producing a better denture for a patient in oral implant treatment.

[Structure 1]
The data generation method of the present invention
The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
The second data obtained by photographing the oral cavity with an intraoral scanner after the osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. It is characterized by including a process.

The shape of the gingiva formed around the false tooth follows the shape of the false tooth. With the provisional tooth attached, it is impossible to capture the shape of the gingiva with an intraoral scanner, but the shape of the gingiva can be inferred from the provisional tooth shape. According to the above feature configuration, the fourth data is generated based on the third data showing the shape of the provisional tooth and the second data taken after the osseointegration progresses with the provisional tooth attached. Therefore, the fourth data can include the estimated shape of the gingiva around the false tooth. In addition, by using the first data, the position and posture of the implant body in the oral cavity can be included in the fourth data. Since the fourth data generated in this way reflects the ideal gingival shape and also includes the position and posture of the implant body to which the denture is attached, this fourth data is used. It is possible to create a denture that fits the patient's oral cavity well.
[Structure 2]
In the present invention
It is preferable that the second data is obtained by photographing the oral cavity with the intraoral scanner after the stage of producing the denture.

[Structure 3 ]
In the present invention
By matching the position of the provisional tooth shown in the second data with the position of the provisional tooth shown in the third data, the provisional tooth indicated by the third data at the position of the provisional tooth in the second data. Including a synthesizer that generates the fifth data that synthesizes the shape of the above and stores it in the memory.
It is preferable to generate the fourth data based on the fifth data stored in the memory in the generation step.

According to the above feature configuration, the shape of the false tooth can be synthesized at an appropriate position in the second data, so that the estimated shape of the gingiva around the false tooth included in the fourth data becomes more appropriate. .. Therefore, it is possible to create a denture that fits the patient's oral cavity better using the fourth data.

[Structure 4 ]
In the present invention
Including a specific step of identifying the position of the implant body in the oral cavity based on the outer shape of the scan body shown in the first data and storing the position data indicating the specified position of the implant body in a memory.
It is preferable to generate the fourth data based on the position data stored in the memory in the generation step.

According to the above-mentioned characteristic configuration, the position of the implant body in the oral cavity is surely specified, so that the position and posture of the implant body included in the fourth data are more appropriate. Therefore, it is possible to create a denture that fits the patient's oral cavity better using the fourth data.

[Structure 5 ]
The denture manufacturing method of the present invention
It is characterized in that a denture is manufactured based on the fourth data generated by the data generation method according to any one of claims 1 to 3.

The fourth data generated reflects the ideal gingival shape and also includes the position and orientation of the implant body to which the denture is mounted. According to the above characteristic configuration, since the superstructure used for the denture is manufactured based on the generated fourth data, it is possible to create a denture that fits the patient's oral cavity well.

[Structure 6 ]
The data generation program of the present invention
The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
The second data obtained by photographing the oral cavity with an intraoral scanner after the osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. It is characterized by realizing the function in a computer.

The shape of the gingiva formed around the false tooth follows the shape of the false tooth. With the provisional tooth attached, it is impossible to image the shape of the gingiva with an intraoral scanner, but it is possible to infer the shape of the gingiva from the provisional tooth shape. According to the above feature configuration, by generating the fourth data based on the third data showing the shape of the provisional tooth and the second data taken with the provisional tooth attached, the fourth data is provisionally used. The estimated shape of the gingiva around the tooth can be included. In addition, by using the first data, the position and posture of the implant body in the oral cavity can be included in the fourth data. Since the fourth data generated in this way reflects the ideal gingival shape and also includes the position and posture of the implant body to which the denture is attached, this fourth data is used. It is possible to create a denture that fits the patient's oral cavity well.

[Structure 7 ]
The data generation system of the present invention
The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
The second data obtained by photographing the oral cavity with an intraoral scanner after the osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. It is characterized by having a part.

The shape of the gingiva formed around the false tooth follows the shape of the false tooth. With the provisional tooth attached, it is impossible to image the shape of the gingiva with an intraoral scanner, but it is possible to infer the shape of the gingiva from the provisional tooth shape. According to the above feature configuration, by generating the fourth data based on the third data showing the shape of the provisional tooth and the second data taken with the provisional tooth attached, the fourth data is provisionally used. The estimated shape of the gingiva around the tooth can be included. In addition, by using the first data, the position and posture of the implant body in the oral cavity can be included in the fourth data. Since the fourth data generated in this way reflects the ideal gingival shape and also includes the position and posture of the implant body to which the denture is attached, this fourth data is used. It is possible to create a denture that fits the patient's oral cavity well.

It is a schematic diagram which shows the schematic structure of the data generation system. It is the schematic which shows the structure of the instrument used for implant treatment. It is the schematic which shows the structure of the instrument used for implant treatment. It is a figure which shows the example of the 3D image of the 1st data. It is a figure which shows the cross section of the 3D image of the 1st data by the plane A in FIG. It is a figure which shows the example of the 3D image of the 2nd data. It is a figure which shows the cross section of the 3D image of the 2nd data by the plane B in FIG. It is a figure which shows the example of the 3D image of the 3rd data. It is a flowchart which shows the 4th data generation processing. It is a figure which shows the example of the 2nd intermediate data. It is a figure which shows the example of the 3rd intermediate data. It is a figure which shows the example of the 4th data.

[Outline of data generation system]
The outline of the data generation system according to the present invention will be described with reference to FIG. The data generation system described herein is used in oral implant treatment to produce dentures that attach to the implant body.

An intraoral scanner 1 and a control device 2 are installed in the dental clinic. The intraoral scanner 1 is a device that photographs the oral cavity of a patient and acquires an optical impression. The control device 2 controls the operation of the intraoral scanner 1, converts the acquired optical impression into electronic data, stores the electronic data, and transmits the electronic data to the dental technician laboratory. The control device 2 is, for example, a desktop computer.

An information processing device 3, a design device 4, and a manufacturing device 5 are installed in the dental technician laboratory. The information processing device 3 stores the electronic data transmitted from the control device 2 of the dental clinic, and performs image processing on the stored electronic data. The design device 4 is operated by a dental technician to generate denture design data based on the electronic data transmitted from the information processing device 3. The manufacturing apparatus 5 manufactures the denture based on the design data transmitted from the design apparatus 4. The information processing device 3 and the design device 4 are, for example, desktop computers. The information processing device 3 and the design device 4 may be combined with one desktop computer. The manufacturing apparatus 5 is, for example, a milling machine.

The information processing device 3 includes a control unit 10 (an example of a generation unit) composed of a CPU and the like, and a storage unit 20 (an example of a memory) composed of a ROM, a RAM, an HDD and the like. The control unit 10 includes a specific unit 11, a synthesis unit 12, an estimation unit 13, and an image processing unit 14 composed of a control program. The operation of each functional unit of the control unit 10 will be described later.

The instruments and the like used for implant treatment will be described with reference to FIGS. 2 and 3. In the implant treatment, the implant body 30 is implanted in the alveolar bone H of the patient. As shown in FIG. 2, a temporary tooth 40 or a denture 50 is attached to the tip of the implant body 30. The false tooth 40 is composed of an abutment 41 attached to the implant body 30 and a superstructure 42 attached to the abutment 41. The denture 50 is composed of an abutment 51 attached to the implant body 30 and a superstructure 52 attached to the abutment 51. A gingiva S is formed around the false tooth 40 and the denture 50. In order to specify the position and orientation of the implant body 30, as shown in FIG. 3, an optical impression is acquired with the scan body 60 attached to the implant body 30. The false tooth 40, the denture 50, and the scan body 60 are attached to the implant body 30 at a predetermined positional relationship and angle by a polygonal fitting structure or the like and a screw mechanism. Therefore, the position and orientation of the implant body 30 can be specified by specifying the position and orientation of the scan body 60 in the optical impression acquired by the intraoral scanner 1.

[1st data, 2nd data, 3rd data]
In oral implant treatment, it is assumed that a false tooth is attached to the implant body and osseointegration progresses to the stage of creating a denture. At the dental clinic, the first data, the second data, and the third data are acquired by the intraoral scanner 1.

Examples of the first data are shown in FIGS. 4 and 5. FIG. 5 is a diagram showing a cross section of a three-dimensional image of the first data according to the plane A in FIG. The first data is three-dimensional image data obtained by photographing the inside of the patient's oral cavity with the oral scanner 1 with the scan body 60 attached to the implant body 30. The image of the first data shows the surface of the patient's tooth T, the surface of the gingiva S, and the surface of the scan body 60. Since the implant body 30 is not exposed in the oral cavity and is buried in the alveolar bone H and the gingiva S, it does not appear in the image of the first data.

Examples of the second data are shown in FIGS. 6 and 7. FIG. 7 is a diagram showing a cross section of a three-dimensional image of the second data according to the plane B in FIG. The second data is three-dimensional image data obtained by photographing the inside of the patient's oral cavity with the intraoral scanner 1 with the false tooth 40 attached to the implant body 30. In the image of the second data, the surface of the patient's tooth T, the surface of the gingiva S, and the surface of the false tooth 40 appear. Since the implant body 30 is not exposed in the oral cavity and is buried in the alveolar bone H and the gingiva S, it does not appear in the image of the second data.

An example of the third data is shown in FIG. The third data is data showing the shape of the provisional tooth 40. The surface of the false tooth 40 appears in the image of the third data. In the present embodiment, the third data is three-dimensional image data obtained by photographing the temporary tooth 40 with the intraoral scanner 1.

As shown in FIG. 1, the first data, the second data, and the third data acquired at the dental clinic are transmitted to the information processing device 3 of the dental technician laboratory, and the dental technician is based on these data. Dentures are manufactured in the lab. First, the information processing device 3 generates the fourth data and transmits it to the design device 4. The fourth data is three-dimensional image data showing the position and orientation of the implant body 30 in the oral cavity and the estimated shape S1 of the gingiva S around the temporary tooth 40 when the temporary tooth 40 is attached to the implant body 30. is there. A dental technician operates the design device 4 to design the shape of the denture 50 with reference to the three-dimensional image shown by the fourth data. The design device 4 generates design data indicating the shape of the denture 50 designed by the dental technician and transmits it to the information processing device 3. The information processing device 3 transmits design data to the manufacturing device 5. The manufacturing apparatus 5 manufactures the denture 50 based on the transmitted design data. The manufactured denture 50 is delivered from the dental technician lab to the dental clinic and attached to the patient's implant body 30.

[Fourth data generation process]
The fourth data generation process performed by the information processing apparatus 3 of the dental technician laboratory will be described with reference to the flowchart of FIG.

The specific unit 11 specifies the position of the implant body 30 in the oral cavity based on the outer shape of the scan body 60 shown in the first data, and stores the position data indicating the position of the specified implant body 30 in the storage unit 20. (Steps # 01, # 02). Specifically, the specific unit 11 superimposes the first data on the second data so that the position of the tooth T shown in the first data and the position of the tooth T shown in the second data coincide with each other. It is stored in the storage unit 20 as intermediate data (step # 01). Here, in the three-dimensional image of the first data, as shown in FIGS. 4 and 5, the surface of the tooth T, the surface of the gingiva S, and the surface of the scan body 60 appear. As shown in FIGS. 6 and 7, the surface of the tooth T, the surface of the gingiva S, and the surface of the false tooth 40 appear in the three-dimensional image of the second data. By superimposing the first data on the second data, the scan body 60 of the first data appears at the position of the provisional tooth 40 in the second data.

The identification unit 11 identifies the position of the implant body 30 in the oral cavity based on the outer shape of the scan body 60 shown in the first intermediate data, and stores the position data indicating the position of the identified implant body 30 in the storage unit 20. Remember (step # 02). The position of the implant body 30 is specified, for example, as follows. The storage unit 20 contains the outer shapes of a plurality of types of scan bodies 60, the outer shapes of the implant bodies 30 corresponding to the scan bodies 60, and the positional relationship between the scan bodies 60 and the implant bodies 30 in a state of being engaged with the scan bodies 60. The corresponding data to be shown is stored. The identification unit 11 specifies the model number of the scan body 60 from the outer shape of the scan body 60 shown in the first intermediate data based on the corresponding data stored in the storage unit 20 by using the image recognition technique. The specific unit 11 specifies the position and orientation of the implant body 30 in the state of being engaged with the scan body 60 based on the corresponding data stored in the storage unit 20 from the model number of the specified scan body 60, and uses it as position data. It is stored in the storage unit 20.

The synthesis unit 12 synthesizes the outer shape of the implant body 30 corresponding to the scan body 60 with the first intermediate data based on the position data stored in the storage unit 20, and stores it in the storage unit 20 as the second intermediate data. Let (step # 03). The outer shape of the implant body 30 is read out from the corresponding data stored in the storage unit 20. FIG. 10 shows an example of the second intermediate data.

The image processing unit 14 deletes the portion corresponding to the scan body 60 from the image of the second intermediate data (step # 04).

By matching the position of the provisional tooth 40 shown in the second intermediate data with the position of the provisional tooth 40 shown in the third data, the synthesis unit 12 places the third data at the position of the provisional tooth 40 in the second intermediate data. The shape of the temporary tooth 40 shown by the above is synthesized and stored in the storage unit 20 as the third intermediate data (an example of the fifth data) (step # 05). Here, in the three-dimensional image of the second intermediate data, the surface shape of the temporary tooth 40 appears as shown in FIG. As shown in FIG. 8, the surface shape of the temporary tooth 40 appears in the three-dimensional image of the third data. The synthesizing unit 12 is an image of the third data (temporary data) in the image of the second intermediate data such that the surface shape of the temporary tooth 40 indicated by the third data matches the surface shape of the temporary tooth 40 indicated by the second intermediate data. The position of the tooth 40) is determined. As a result, the position of the provisional tooth 40 shown in the second intermediate data and the position of the provisional tooth 40 shown in the third data coincide with each other. The synthesizing unit 12 synthesizes the image of the third data at the determined position in the second intermediate data, generates the third intermediate data, and stores it in the storage unit 20.

FIG. 11 shows an example of the third intermediate data. The image of the third intermediate data shows the surface of the patient's gingiva S, the surface of the false tooth 40, and the outer shape of the implant body 30. In the image of the third intermediate data, the surface of the neck 43 of the false tooth 40, which did not appear in the second intermediate data, appears by synthesizing the third data.

The estimation unit 13 estimates the shape of the gingiva around the temporary tooth 40 when the temporary tooth 40 is attached to the implant body 30 based on the third intermediate data (step # 06). In the present embodiment, the estimation unit 13 uses the surface shape of the neck portion 43 of the temporary tooth 40 shown in the third intermediate data as the estimated shape S1 of the gingiva S. This is because the gingiva S is formed so as to come into contact with the surface of the neck 43 of the false tooth 40 while the false tooth 40 is attached to the implant body 30 and the osseointegration proceeds.

The image processing unit 14 deletes an unnecessary portion of the surface of the temporary tooth 40 from the image of the third intermediate data and stores it in the storage unit 20 as the fourth data (step # 07). Specifically, the image processing unit 14 deletes the portion of the temporary tooth 40 excluding the neck 43 from the image of the third intermediate data. FIG. 12 shows an example of the fourth data. The fourth data shows the position and orientation of the implant body 30 in the oral cavity and the estimated shape S1 of the gingiva S around the temporary tooth 40 when the temporary tooth 40 is attached to the implant body 30.

The fourth data generated as described above is transmitted to the design device 4. The denture 50 is designed with reference to the transmitted fourth data, and the design data is generated. The generated design data is transmitted to the manufacturing apparatus 5. The denture 50 is manufactured by the manufacturing apparatus 5 based on the transmitted design data.

[Other Embodiments] [1] In the above embodiment, an example in which the third data is three-dimensional image data obtained by photographing the provisional tooth 40 with the intraoral scanner 1 has been described. The third data does not have to be the data obtained by photographing. For example, the third data may be data indicating a 3D model generated by 3D-CAD.

[2] In the above embodiment, an example in which the fourth data is generated via the first intermediate data, the second intermediate data, and the third intermediate data has been described. The generation of these intermediate data may be omitted. For example, the second data may be sequentially subjected to processing such as image composition to generate the fourth data. In the above embodiment, for example, in step # 05, the synthesizing unit 12 may synthesize the shape of the provisional tooth 40 indicated by the third data directly with the second data.

[3] In the above embodiment, after the first data is superimposed on the second data to generate the first intermediate data (step # 01), the position of the implant body 30 is specified based on the outer shape of the scan body 60. It was broken (step # 02). This step # 01 may be omitted, and the position of the implant body 30 may be specified based on the outer shape of the scan body 60 shown in the first data. Further, the compositing unit 12 may synthesize the image of the third data at the position determined in the second data.

[4] The superposition of the second data on the second data in step # 01 and the superposition of the third data on the second intermediate data in step # 05 are automatically performed by the specific unit 11 or the synthesis unit 12. It may be performed based on the operation of the operator of the information processing apparatus 3. For example, the image may be superimposed by the operator designating three corresponding points on the two images and superimposing the three points.

[5] Step # 05 may be omitted. That is, it is also possible to estimate the gingival shape (step # 06) without synthesizing the shape of the temporary tooth 40 indicated by the third data into the second intermediate data (or the second data). For example, the estimation unit 13 sets the surface shape of the neck portion 43 of the temporary tooth 40 as the estimated shape S1 of the gingiva S, as in the above embodiment. Here, the false tooth 40 is attached to the implant body 30 in a predetermined positional relationship. Therefore, the estimated shape S1 can be arranged at an appropriate position with respect to the first data or the second data based on the position of the implant body 30 specified by the specific portion 11.

[6] In the above embodiment, an example has been described in which the estimation unit 13 uses the surface shape of the neck portion 43 of the temporary tooth 40 shown in the third intermediate data as the estimated shape S1 of the gingiva S. By modifying this, a curved surface in which the estimation unit 13 is located outside the surface shape of the neck portion 43 by a predetermined distance may be used as the estimated shape S1 of the gingiva S.

[7] In the above embodiment, the image processing unit 14 has deleted unnecessary parts (scan body 60, temporary teeth 40) from the image (steps # 04, # 07), but this step may be omitted.

[8] In the above embodiment, an example in which a dental technician designs the shape of the denture 50 by operating the design device 4 while referring to the three-dimensional image shown by the fourth data has been described. A dental technician may manufacture the denture 50 using a plaster model created based on the fourth data.

[9] In the above embodiment, an example in which the denture 50 is manufactured by the manufacturing apparatus 5 has been described. The manufacturing apparatus 5 may manufacture the entire superstructure 52 of the denture 50, or the manufacturing apparatus 5 manufactures the internal skeleton of the superstructure 52, and the dental technician applies resin or the like to the internal skeleton. The superstructure 52 may be finished.

[10] In the above embodiment, the dental technician laboratory is provided with the information processing device 3, the design device 4, and the manufacturing device 5, and the first data, the second data, and the third data transmitted from the dental clinic are used. Based on this, an example was explained in which the dental technician lab generates the fourth data and designs and manufactures the denture 50. A part or the whole of the information processing device 3, the design device 4, and the manufacturing device 5 may be provided in the dental clinic. Part or all of the generation of the fourth data, the design and manufacture of the denture 50 may be performed in the dental office. The generation of the fourth data may be performed in a place other than the dental clinic and the dental technician laboratory, for example, in a data center or in the cloud.

The present invention can be applied to a data generation method, a denture manufacturing method, a data generation program, and a data generation system used for oral implant treatment.

1: Oral scanner 2: Control device 3: Information processing device 4: Design device 5: Manufacturing device 10: Control unit (generation unit)
11: Specific part 12: Synthesis part 13: Estimating part 14: Image processing part 20: Storage part 30: Implant body 40: Temporary tooth 41: Abutment 42: Superstructure 43: Neck 50: Denture 51: Abutment 52: Superstructure 60: Scan body H: Alveolar bone S: Gingiva S1: Estimated shape T: Teeth

Claims (7)

The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
Second data obtained by photographing the oral cavity with an intraoral scanner after osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. Data generation method including steps. The data generation method according to claim 1, wherein the second data is obtained by photographing the oral cavity with the intraoral scanner after the stage of creating a denture. By matching the position of the provisional tooth shown in the second data with the position of the provisional tooth shown in the third data, the provisional tooth indicated by the third data at the position of the provisional tooth in the second data. Including the synthesis step of generating the fifth data which synthesized the shape of the above and storing it in the memory.
The data generation method according to claim 2 , wherein the fourth data is generated based on the fifth data stored in the memory in the generation step. Including a specific step of identifying the position of the implant body in the oral cavity based on the outer shape of the scan body shown in the first data and storing the position data indicating the specified position of the implant body in a memory.
The data generation method according to any one of claims 1 to 3, wherein the fourth data is generated based on the position data stored in the memory in the generation step. A denture manufacturing method for manufacturing a denture based on the fourth data generated by the data generating method according to any one of claims 1 to 4 . The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
The second data obtained by photographing the oral cavity with an intraoral scanner after the osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. A data generation program that realizes functions on a computer. The first data obtained by photographing the oral cavity with an intraoral scanner with the scan body attached to the implant body, and
The second data obtained by photographing the oral cavity with an intraoral scanner after the osseointegration progressed with the false tooth attached to the implant body, and
Based on the third data showing the shape of the false tooth and
Generation of generating fourth data indicating the position and orientation of the implant body in the oral cavity and the estimated shape of the gingiva around the temporary tooth when the temporary tooth is attached to the implant body and storing it in a memory. A data generation system with a unit.

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