JP2022125708A - Manufacturing method of impression material bath for dental model - Google Patents

Abstract

To provide: a manufacturing method of an impression material bath for manufacturing a dental model (for example, a jaw part model) for installing a dental analog; and a manufacturing method of a dental model using an impression material bath.SOLUTION: A manufacturing method of impression material bath for a dental model includes the steps of: analyzing oral cavity scanning data of a patient in a state that a scanning tool is installed in a patient's oral cavity and obtaining three-dimensional data of the patient's oral cavity in the state that the scanning tool is installed in the patient's oral cavity; replacing data equivalent to the scanning tool with data of an analog holder and obtaining three-dimensional data of the patient's oral cavity after the analog holder is replaced in the three-dimensional data of the patient's oral cavity in the state that the scanning tool is installed in the patient's oral cavity; obtaining the three-dimensional data of an impression material bath on the basis of the three-dimensional data of the patient's oral cavity after the analog holder is replaced; and manufacturing the impression material bath on the basis of the three-dimensional data of the impression material bath.SELECTED DRAWING: Figure 1

Description

The present invention relates to a method for manufacturing an impression material bath for a dental model.

Japanese Patent No. 6208905 describes a scanning jig. It is known to use a scanning jig when manufacturing implants in this manner. For example, as described in Japanese Patent No. 6161048, dental analogues (implant analogues) are used in manufacturing implants. When installing the dental analog on the jaw model, there was a problem that it was difficult to adjust the angle and position of the dental analog.

Japanese Patent No. 6208905 Japanese Patent No. 6161048

Therefore, a method for manufacturing an impression material bath for manufacturing a dental model (for example, a jaw model) for installing a dental analog and a method for manufacturing a dental model using an impression material bath have been desired.

The first invention relates to a method of manufacturing an impression bath for a dental model.

This method analyzes the intraoral scan data of the patient with the scanning jig 21 installed in the patient's oral cavity, and analyzes the intraoral scan data of the patient with the scanning jig 21 installed in the patient's oral cavity. a scan jig installation state intraoral three-dimensional data acquisition step for obtaining dimensional data;
In the three-dimensional data of the patient's oral cavity with the scanning jig 21 installed in the patient's oral cavity, the data corresponding to the scanning jig 21 is replaced with the data of the analog holder 13, and the data after the replacement of the analog holder a step of obtaining three-dimensional intraoral data of the patient's oral cavity after replacement of the analog holder;
an impression material bath data obtaining step of obtaining three-dimensional data of the impression material bath based on the three-dimensional data of the oral cavity of the patient after the replacement of the analog holder;
and an impression material bath manufacturing process for manufacturing an impression material bath based on the three-dimensional data of the impression material bath.

This method preferably further includes a step of obtaining intraoral scan data of the patient with the scanning jig 21 installed in the oral cavity of the patient.
Then, the intraoral scan data of the patient with the scan jig installed in the patient's oral cavity in the scan jig installation state intraoral scan data acquisition step is obtained from the scan jig installation state intraoral scan data acquisition step. It is preferably obtained in

In this method, the analog holder 13
a holding portion main body 5 for holding the dental analogue 3;
It has an analog guide connection part 9 for connecting with the holding part main body 5 and connecting with the analog guide 7,
The one used for implanting the dental analogue 3 via the analogue guide 7 to the jaw part model 11 is preferred.

In this method, the analog guide 7
Used to implant the dental analog 3 to the jaw part model 11,
an analog guide body 15 having a shape that can be installed on the jaw model 11;
Provided on the analog guide main body 15 and connected to the analog guide connecting portion of the analog holding jig 13, for directing the dental analog 3 held by the analog holding jig 13 to the analog installation position of the jaw part model 11 , and the analog holding jig connecting portion 17 are preferable.

The next invention relates to a method of manufacturing a dental model (for example, jaw model 11). This method includes a step of obtaining an impression material bath based on the above-described method of manufacturing an impression material bath for a dental model, and a dental model manufacturing process for manufacturing a dental model using the impression material bath.

The following invention relates to a program. This program is a program for causing a computer to execute a scan jig installation state intraoral three-dimensional data acquisition process, an oral cavity three-dimensional data acquisition process after analog holder replacement, and an impression material bath data acquisition process. is.

The following invention relates to a computer-based data acquisition system for impression baths for dental models. This system executes a scanning jig installation state intraoral three-dimensional data acquisition process, an intraoral three-dimensional data acquisition process after analog holder replacement, and an impression material bath data acquisition process.
In other words, this system analyzes the patient's intraoral scan data with the scanning jig 21 installed in the patient's oral cavity, and analyzes the patient's intraoral scan data with the scanning jig 21 installed in the patient's oral cavity. an intraoral 3D data acquisition means step of installation state of a scanning jig for obtaining 3D data of the oral cavity;
In the three-dimensional data of the patient's oral cavity with the scanning jig 21 installed in the patient's oral cavity, the data corresponding to the scanning jig 21 is replaced with the data of the analog holder 13, and the data after the replacement of the analog holder 3D intraoral data acquisition means after replacement of the analog holder for obtaining 3D data of the patient's oral cavity;
and an impression material bath data acquisition means for obtaining three-dimensional data of the impression material bath based on the three-dimensional data of the patient's oral cavity after the replacement of the analog holder.

A method for manufacturing an impression material bath for manufacturing a dental model (for example, a jaw model) for installing a dental analog and a method for manufacturing a dental model using the impression material bath can be provided.

FIG. 1 is a flow chart showing an example of a process of obtaining data for creating an impression material bath, manufacturing the impression material bath, and then manufacturing a dental model. FIG. 2 is a conceptual diagram showing an example of a 3D scan image of a patient's jaw in which a scanning jig is embedded. FIG. 3 is a conceptual diagram of an analog holding jig. FIG. 4 is a conceptual diagram of an analog guide. FIG. 5 is a conceptual diagram showing how analog holding jigs are attached to analog guides. FIG. 6 is a conceptual diagram showing how the dental analog, the analog holding jig and the analog guide are mounted. FIG. 7 is a conceptual diagram showing how the dental analog is attached to the analog holding jig and the dental analog is implanted on the jaw model using the analog guide. FIG. 8 is a diagram showing an example of intraoral scan data. FIG. 9 is a diagram showing three-dimensional data of the patient's oral cavity after PUD replacement. FIG. 10 shows three-dimensional data (model diagram) of the patient's oral cavity after PUD replacement. FIG. 11 is a diagram showing an example of a screen for creating impression material bath data. FIG. 12 shows the three-dimensional structural data of the obtained impression material bath. FIG. 13 is a photograph in lieu of a drawing showing an example of an impression material bath fitted with an analog holder. FIG. 14 is a photograph in lieu of a drawing showing an impression bath with a dental analog attached. FIG. 15 is a photograph in place of a drawing showing how a dental model (jaw model) is obtained using an impression material bath. FIG. 16 is a photograph in place of a drawing showing an example of a dental model.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments for carrying out the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments described below, and includes appropriate modifications within the scope obvious to those skilled in the art from the following embodiments.

FIG. 1 is a flow chart showing an example of a process of obtaining data for creating an impression material bath, manufacturing the impression material bath, and then manufacturing a dental model. The manufacturing method of this dental model is
a scan jig installation state intraoral scan data acquisition step (S101);
a scan jig installation state intraoral three-dimensional data acquisition step (S102);
an intraoral three-dimensional data acquisition step (S103) after replacement of the analog holder;
an impression material bath data acquisition step (S104);
Impression material bath manufacturing step (S105);
and a dental model manufacturing step (S106).

Intraoral Scan Data Acquisition Step (S101)
The scan jig installation state intraoral scan data acquisition step is a step for obtaining intraoral scan data of the patient with the scan jig 21 installed in the patient's oral cavity. For example, Japanese Patent No. 6208905 describes a scanning jig. It is known to use a scanning jig when manufacturing implants in this way. Acquiring intraoral scan data is also performed at ordinary dental clinics.

In this way, a 3D (three-dimensional) scan image 25 of the jaw part 23 of the patient in which the scanning jig 21 is buried can be obtained. The obtained data are appropriately stored in the storage unit of the computer connected to the scanner. The scanning jig 21 is publicly known as described in Japanese Patent No. 6208905, for example. Implant bodies or intermediate structures of dental implants are embedded in humans or models. A scanning jig is attached to the dental implant. After that, the scanning jig is photographed using a scanner, X-ray photography, CT, or the like. In this way, the system is able to acquire a 3D scan image 25 of the patient's jaw 23 in which the scanning fixture 21 has been implanted.

FIG. 2 is a conceptual diagram showing an example of a 3D scan image of a patient's jaw in which a scanning jig is embedded.

Intraoral 3D data acquisition step (S102)
In the intraoral 3D data acquisition step, the scan jig 21 is installed in the patient's oral cavity, and the intraoral scan data of the patient is analyzed. This is a process for obtaining three-dimensional data of the patient's oral cavity with the device installed. The information captured in the previous step is sent to a computer, and the vertex of the scan area is determined from the contrast and other factors. The computer stores in advance information about each side surface of the head unit (for example, the shape of the polygons forming the side surface, the adjacent side surface, the area, the position, and the angle). Based on the obtained vertex position information, the computer determines which vertex of the head portion is included in the photographed image. Then, as appropriate, compare the area of the polygon formed by each vertex to confirm that the vertex analysis is correct. From the information about the positions of the vertices, the computer can determine the position and orientation of the scanning jig, as well as the position and orientation of the dental implant connected thereto. In this way, the computer can obtain three-dimensional intraoral data of the patient with the scanning jig 21 installed in the patient's oral cavity.

This data can be used to manufacture an analog guide. In the previous step, the system has obtained jaw part information and fixture part information. The obtained information is appropriately stored in the storage unit. The system reads out the program from the storage unit, reads out the jaw part information and the jig part information from the storage part, makes the calculation part perform arithmetic processing based on the command of the program, and acquires the manufacturing information of the analog guide. . The jaw part information includes information on the shape and position of the crown adjacent to the site where the implant is to be placed. Using this information, the system determines the overall size of the analog guide 7 (PUD holder) and the shape of the crown engaging portions 12,14. In addition, the jig part information includes positional information of the implant-inserting site and the adjacent crown part, and information about the implant-inserting direction. Using these pieces of information, the system can obtain design information for the analog holding jig connection portion 17 in the analog guide 7 (PUD holder). Then, the system can obtain the information of the connection part from the information about the overall size of the analog guide 7 (PUD holder), the shape of the crown engaging parts 12 and 14, and the design information of the analog holding jig connection part 17. can. In this way the system can obtain the manufacturing information of the analog guide.

The analog guide manufacturing information can then be used to manufacture the analog guide 7 . For example, the system includes a 3D printer. The system uses the analog guide manufacturing information to cause the 3D printer unit to manufacture the analog guide 7 . In this way the system can produce analog guides 7 . Moreover, the system may have a cutting machine, and the analog guide 7 may be manufactured by causing the cutting machine to perform cutting using the analog guide manufacturing information.

Intra-oral three-dimensional data acquisition step after analog holder replacement (S103)
In the intraoral three-dimensional data acquisition step after replacement of the analog holder, the data corresponding to the scanning jig 21 is converted into analog data in the intraoral three-dimensional data of the patient with the scanning jig 21 installed in the patient's oral cavity. This is a process for replacing the data of the holder 13 and obtaining three-dimensional data of the oral cavity of the patient after replacement with the analog holder. The 3D data of the patient's oral cavity after the replacement of the analog holder is the 3D data of the patient's oral cavity when the analog holder 13 is installed instead of the scanning jig 21 in the patient's oral cavity. .

FIG. 3 is a conceptual diagram of an analog holding jig. The analog holding jig is a device (pickup device: PUD) used for holding the dental analog 3 and implanting the dental analog 3 on the jaw model 11 via the analog guide 7 . A dental analog is a jig also called an implant analog (see Japanese Patent No. 6161048).
As shown in FIG. 3, the analog holding jig 13 includes a holding portion main body 5 for holding the dental analog 3 and an analog guide connecting portion for connecting to the analog guide 7 by connecting with the holding portion main body 5. 9.

In the example of FIG. 3, the holding portion main body 5 has a cylindrical body portion and an engaging portion 2 positioned above the body portion and having a diameter smaller than that of the body portion. The engaging portion 2 is inserted into the dental analogue 3 and can fix the dental analogue 3 .

In the example of FIG. 3, the analog guide connecting portion 9 is connected to the end of the holding portion main body 5 opposite to the engaging portion 2 that engages the dental analog 3 . The analog guide connecting portion 9 has a disk-shaped bottom portion 4 and a projection portion 6 protruding from the bottom portion in the outer peripheral direction. The hem portion may be in the shape of a multistage disk (a shape having two or more upper disk portions whose diameters become smaller toward the center). The skirt portion 4 and the protrusion 6 of the analog guide connecting portion 9 are engaged with the analog holding jig connecting portion 17 having corresponding recesses present in the analog guide 7 . Then, the analog holding jig 13 is fixed to the analog guide 7 .

The analog holding jig 13 (pickup device: PUD) can be manufactured using a known material (eg, plastic) having a certain degree of strength. The analog holding jig 13 (PUD) is used to implant the dental analog onto the jaw model. Therefore, the size of the analog holding jig 13 (PUD) may be appropriately adjusted in consideration of the size of the jaw and the size of the tooth region. The analog holding jig 13 may be of any kind as long as it has a certain degree of strength, and may be appropriately manufactured using publicly available materials (for example, metal such as stainless steel or plastic).

FIG. 4 is a conceptual diagram of an analog guide. The analog guide 7 is a device (pickup guide holder: PUD holder) used for implanting the dental analog 3 in a dental model such as the jaw model 11 . As shown in FIG. 4 , the analog guide 7 has an analog guide main body 15 and an analog holding jig connecting portion 17 . Below, the analog guide is explained based on the forehead model.

The analog guide main body 15 is a part having a shape that can be installed on the jaw model 11 . The analog guide main body 15 includes an analog holding jig connecting portion 17 as well as a crown engaging portion that engages with all or part of the crown adjacent to the site where the dental analog 3 is inserted and the implant is to be implanted. 12, 14, and a connecting portion 16 that connects the crown engaging portions 12, 14 and the analog holding jig connecting portion 17. As shown in FIG. The analog guide is fixed to the jaw model 11 by engaging the crown engaging portions 12 and 14 with the crown of the jaw model 11 . Then, the analog holding jig connection part 17 is also fixed to the jaw part model 11 , and the analog holding jig 13 and the dental analog 3 are also fixed to the jaw part model 11 . Thus, the analog guide main body 15 preferably has a shape that reflects the shape of the implant-inserted portion of the patient (or patient's jaw model) and the teeth adjacent thereto.

The analog holding jig connection part 17 is provided in the analog guide main body 15 and is connected to the analog guide connection part 9 of the analog holding jig 13 to connect the dental analog 3 held by the analog holding jig 13 to the jaw part. This is a part for directing the model 11 toward the analog installation position. The analog holding jig connecting portion 17 has depressions corresponding to the skirt portion 4 and the projection portion 6 of the analog guide connecting portion 9 of the analog holding jig 13 . The analog guide connecting portion 9 is fitted into the analog holding jig connecting portion 17 , and the analog holding jig 13 is fixed to the analog guide 7 .

The analog guide 7 (PUD holder) can be manufactured using a known material (eg plastic) having a certain degree of strength. The analog guide 7 (PUD holder) may have only one analog holding jig connection portion 17 . Further, when a plurality of implants are provided, the analog guide 7 (PUD holder) may have two or more analog holding jig connecting portions 17 . The size of the analog guide 7 (PUD holder) may be appropriately adjusted in consideration of the size of the jaw, the size of the tooth region, and the number of analog holding jig connections.

FIG. 5 is a conceptual diagram showing how analog holding jigs are attached to analog guides. As shown in FIG. 5 , the analog guide connecting portion 9 is fitted into the analog holding jig connecting portion 17 , and the analog holding jig 13 is fixed to the analog guide 7 .

FIG. 6 is a conceptual diagram showing how the dental analog, the analog holding jig and the analog guide are mounted.

FIG. 7 is a conceptual diagram showing how the dental analogue 3 is attached to the analogue holding jig 13 and the dental analogue 3 is implanted in the jaw part model 11 using the analogue guide 7 .

In the previous process, three-dimensional data of the patient's oral cavity with the scanning jig 21 installed in the patient's oral cavity are obtained. On the other hand, the three-dimensional data of the analog holder 13 is stored in the memory of the computer. The computer may have a database for analog holders that stores the shapes of a plurality of analog holders 13 . The computer may, for example, automatically select the analog holder 13 corresponding to the shape of the scanning jig 21 from the analog holder database. Further, for example, a dentist or a dental technician may input information for selecting the analog holder 13 from the database for analog holders into the computer using the input unit of the computer. Then, based on the selection information, the shape information of the analog holder 13 is read out from the analog holder database.

Using the read shape information of the analog holder 13, the computer replaces the data corresponding to the scanning jig 21 with the data of the analog holder 13, and the three-dimensional intraoral cavity of the patient after the replacement of the analog holder. data can be obtained. The three-dimensional intraoral data of the patient after replacement of the analog holder obtained in this manner are appropriately stored in the storage unit of the computer.

Impression material bath data acquisition step (S104)
The impression material bath data acquisition process is a process for obtaining three-dimensional data of the impression material bath based on the three-dimensional intraoral data of the patient after the replacement of the analog holder. The impression material bath is a container for obtaining a model by putting an impression material into the cavity, solidifying it, and removing the solidified impression material.

In the previous process, three-dimensional data of the oral cavity of the patient when the analog holder 13 is installed is obtained. The computer reads this three-dimensional data as appropriate and obtains three-dimensional data for manufacturing an intraoral impression material bath containing the analog holder 13 using this three-dimensional data. Specifically, in the three-dimensional data of the patient's oral cavity when the analog holder 13 is installed, the data conversion process converts the portion where the analog holder 13, gingiva, and adjacent teeth exist into a cavity. I do. When obtaining a jaw model, the processing may be the entire oral cavity including the analog holder 13, or the entire lower jaw or upper jaw. Further, data conversion processing may be performed only on the analog holder 13 and its adjacent tooth portion, or only on a predetermined volume portion. By doing so, three-dimensional data about the impression bath can be obtained. The obtained three-dimensional data regarding the bath of impression material may be stored in the storage unit of the computer as appropriate.

Impression material bath manufacturing process (S105)
The impression material bath manufacturing process is a process for manufacturing an impression material bath based on the three-dimensional data of the impression material bath. In the previous step, three-dimensional data about the impression bath were obtained. Techniques for manufacturing models based on three-dimensional data, such as 3D printers, are known. For example, the three-dimensional data about the impression material bath are read out from the memory of the computer. Then, using the read three-dimensional data on the impression material bath, the impression material bath is manufactured. In this way an impression bath can be obtained. As the material for the impression material bath, the material for the 3D printer may be appropriately used.

Dental model manufacturing process (S106)
The dental model manufacturing process is a process for manufacturing a dental model using an impression material bath. Techniques for manufacturing models using impression material baths, such as inlays and crowns, are well known. Therefore, a dental model may be manufactured using a method known in dental technology. Thus, a dental model can be obtained.

By using the obtained dental model, the dentist can easily conduct preliminary examination and preliminary practice for installing the dental analog.

A computer has an input section, an output section, a control section, a calculation section, and a storage section, and each element is connected by a bus or the like so that information can be exchanged. For example, the storage unit may store a control program or various types of information. When predetermined information is input from the input unit, the control unit reads out the control program stored in the storage unit. Then, the control unit appropriately reads the information stored in the storage unit and notifies it to the calculation unit. In addition, the control unit conveys appropriately input information to the calculation unit. The calculation unit performs calculation processing using the received various information, and stores the information in the storage unit. The control unit reads the calculation result stored in the storage unit and outputs it from the output unit. Various processes are executed in this way.

This specification includes a program for causing a computer to perform each of the above processes, an information recording medium storing the program, an impression material bath data acquisition system based on the computer that performs each of the above processes, and an impression material bath manufacturing system. , and a dental model manufacturing system.
Such a program, for example, causes a computer to perform a scanning jig installation state intraoral three-dimensional data acquisition step, an intraoral three-dimensional data acquisition step after analog holder replacement, and an impression material bath data acquisition step. This is a program for obtaining three-dimensional data of an impression material bath. In addition, such a system is a computer-based system, and includes a scanning jig installation state intraoral three-dimensional data acquisition step, an intraoral three-dimensional data acquisition step after analog holder replacement, and an impression material bath data acquisition step. A system for obtaining three-dimensional data of an impression material bath, obtaining an impression material bath based on the three-dimensional data of the obtained impression material bath, and manufacturing a dental model can be anything.

EXAMPLES The present invention will be specifically described below using examples. A scanning jig (Patent No. 6208905) is installed in the oral cavity of the patient. With a scanning jig installed in the patient's oral cavity, the patient's oral cavity is scanned to obtain intraoral scan data (optical impression). FIG. 8 is a diagram showing an example of intraoral scan data.

Next, the patient's intraoral scan data is analyzed. As a result, three-dimensional information on the position where the implant is to be installed is obtained. In addition, three-dimensional information of the gingiva and teeth around the site where the implant is to be installed is obtained. In this way, three-dimensional data of the patient's oral cavity are obtained when the scanning jig is installed in the patient's oral cavity. For example, the system stores three-dimensional data of a scanning jig. By aligning (overlaying) this with intraoral scan data, it is possible to analyze not only intraoral 3D information but also 3D data of intraoral scanning jigs.

In the three-dimensional data of the oral cavity of the patient when the scanning jig is installed, data corresponding to the scanning jig is replaced with analog holder data (PUD data). In this way, three-dimensional intraoral data of the patient after PUD replacement are obtained. FIG. 9 is a diagram showing three-dimensional data of the patient's oral cavity after PUD replacement. FIG. 10 shows three-dimensional data (model diagram) of the patient's oral cavity after PUD replacement. Thus, the system can three-dimensionally model the patient's oral cavity after PUD replacement.

Impression bath (DigiPoCo holder) data is obtained based on the 3D intraoral data of the patient after PUD replacement. FIG. 11 is a diagram showing an example of a screen for creating impression material bath data. For example, the location of the impression bath is entered into the system. Then, three-dimensional data of the impression material bath exists at the input position. If three-dimensional data of the patient's oral cavity after PUD replacement exists in that region, data of the impression material bath can be obtained by performing arithmetic processing. A proposal for this process is a Boolean operation. Among the PUD replacement data, the data of the impression material bath (DigiPoCo holder) reflecting the unevenness of the place where the implant is installed is obtained. This data reflects in advance the three-dimensional data for the analog holding device (PUD). In this way, the impression bath may be preconfigured with a site for placing an analog holder (PUD).

FIG. 12 shows the three-dimensional structural data of the obtained impression material bath. An impression bath (DigiPoCo holder) is created based on the data of the impression bath (DigiPoCo holder). A 3D printer may be used to create the impression bath. Alternatively, an impression bath may be prepared by cutting out a wax disk based on the data of the impression bath.

In this example, an impression bath (DigiPoCo holder) was fitted with an analogue holder (PUD). FIG. 13 is a photograph in lieu of a drawing showing an example of an impression material bath fitted with an analog holder. Thus, one obtains an impression bath (DigiPoCo holder) fitted with an analogue holder (PUD).

Next, the analog is fastened to the analog holder (PUD) of the impression material bath (DigiPoCo holder) in which the analog holder (PUD) is mounted. FIG. 14 is a photograph in lieu of a drawing showing an impression bath with a dental analog attached. Thus, one obtains an impression bath (DigiPoCo holder) with the analog fastened.

Impression material is injected into the impression material bath (DigiPoCo holder) with the analog fastened. Allow the impression material to harden. Remove the solidified impression material from the impression material bath (DigiPoCo holder). FIG. 15 is a photograph in place of a drawing showing how a dental model (jaw model) is obtained using an impression material bath. Thus, a dental model can be obtained. FIG. 16 is a photograph in place of a drawing showing an example of a dental model.

INDUSTRIAL APPLICABILITY This invention can be used in the fields of dentistry and medical equipment.

3 dental analog 5 holding part main body 7 analog guide 9 connecting part for analog guide 11 jaw part model 13 analog holding jig 15 analog guide main body 17 analog holding jig connecting part 21 jig for scanning 23 jaw part 25 3D scan image

Claims (5)

A method for manufacturing an impression bath for a dental model, comprising:
The patient's intraoral scan data with the scanning jig (21) installed in the patient's oral cavity is analyzed, and the patient's oral cavity with the scanning jig (21) installed in the patient's oral cavity. a scan jig installation state intraoral three-dimensional data acquisition step for obtaining dimensional data;
In the three-dimensional data of the patient's oral cavity with the scanning jig (21) installed in the patient's oral cavity, the data corresponding to the scanning jig (21) is replaced with the data of the analog holder (13). , a post-analog holder replacement intraoral three-dimensional data acquisition step of obtaining three-dimensional data of the patient's oral cavity after replacement of the analog holder;
an impression material bath data obtaining step of obtaining three-dimensional data of the impression material bath based on the three-dimensional data of the oral cavity of the patient after the replacement of the analog holder;
an impression material bath manufacturing process for manufacturing an impression material bath based on the three-dimensional data of the impression material bath;
A method for manufacturing an impression bath for a dental model. A method for manufacturing an impression bath for a dental model according to claim 1, comprising:
further comprising a scan jig installation state intraoral scan data acquisition step of obtaining intraoral scan data of the patient with the scan jig (21) installed in the patient's oral cavity;
The intraoral scan data of the patient with the scanning jig installed in the patient's oral cavity in the scanning jig installation state intraoral three-dimensional data acquisition step is obtained by obtaining the scanning jig installation state intraoral scan data obtained in the process,
A method for manufacturing an impression bath for a dental model. A method for manufacturing an impression bath for a dental model according to claim 1, comprising:
The analog holder (13) is
a holder body (5) for holding a dental analogue (3);
an analog guide connecting part (9) for connecting with the holding part main body (5) and connecting with the analog guide (7);
Used to implant the dental analog (3) through the analog guide (7) to the jaw part model (11),
A method for manufacturing an impression bath for a dental model. A method for manufacturing an impression bath for a dental model according to claim 3, comprising:
The analog guide (7) is
used to implant the dental analogue (3) to the jaw model (11),
an analog guide body (15) having a shape that can be installed on the jaw model (11);
The dental analog (3) provided on the analog guide main body (15) and connected to the analog guide connecting portion of the analog holding jig (13), held by the analog holding jig (13). an analog holding fixture connection (17) for orienting the jaw model (11) to an analog installation position;
A method for manufacturing an impression bath for a dental model. A method for manufacturing a dental model, comprising:
obtaining an impression bath according to the method for manufacturing an impression bath for a dental model according to claim 1;
and a dental model manufacturing step for manufacturing a dental model using the impression material bath.

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