Digital manufacturing method and system for transparent retainer

Abstract

The invention provides a digital manufacturing method and system for a transparent retainer. The method comprises the steps that a digital oral cavity model of the oral cavity of a patient is obtained, a repair steel wire model is determined, and steel wire data of the repair steel wire model and a digital steel wire oral cavity merging model are exported; carrying out bending processing according to the steel wire data to obtain a steel wire piece entity; based on the digital steel wire oral cavity merging model, a digital retainer base model with a clamping groove shape is determined, and the clamping groove shape is reserved according to the repair steel wire model; the digital retainer base model is subjected to 3D printing, a retainer base real object is obtained, and the retainer base real object is provided with a steel wire clamping groove corresponding to the clamping groove in shape; and the steel wire piece real object is installed in the steel wire clamping groove, the steel wire piece real object and the retainer base plate real object are fixed, and a transparent retainer finished product is obtained. The problems that in the prior art, cost is high due to manual production, and product production quality standards are difficult to unify are solved.

Description

Technical Field

[0001] The present application relates to the field of oral digital medical technology, and more specifically, to a digital manufacturing method and system for a transparent retainer. Background Art

[0002] Traditional retainers are made by hand, and can be customized and designed to provide customers with the most suitable repair solutions. The manual production process usually includes: manual wire bending, manual powder filling and molding, manual molding, manual trimming and polishing, etc. before the retainer can be obtained.

[0003] The existing retainers are handmade, which has relatively strict requirements on the personal professional quality and experience of technicians. It also takes a certain amount of cost and time for the training of technicians before they can actually start production, resulting in high personnel investment costs. In addition, due to the production habits of different technicians and their own different understandings, it is difficult to form standards, resulting in uneven product quality and difficult to control product quality.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The purpose of the present application is to provide a digital manufacturing method and system for a transparent retainer, which solves the problems of high cost and difficulty in unifying product production quality standards caused by manual production in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] In one aspect, the present application provides a digital manufacturing method for a transparent holder, the method comprising the steps of:

[0008] Obtain a digital oral model of the patient's oral cavity, determine a restoration wire model, and export wire data of the restoration wire model and a digital wire-oral combined model;

[0009] Perform bending processing according to the steel wire data to obtain the actual steel wire parts;

[0010] Based on the digital wire-oral merging model, a digital retainer base model with a slot shape is determined, wherein the slot shape is reserved according to the repair wire model;

[0011] 3D printing the digital retainer base model to obtain a retainer base object, wherein the retainer base object has a wire clamping groove corresponding to the shape of the clamping groove;

[0012] The steel wire piece is installed in the steel wire slot, and the steel wire piece and the retainer base are fixed to obtain a finished transparent retainer.

[0013] Optionally, the steps of obtaining a digital oral model of the patient's oral cavity, determining a restoration wire model, and exporting wire data of the restoration wire model and a digital wire-oral combined model include:

[0014] Obtain a digital oral model by scanning the patient's oral cavity or oral cavity;

[0015] Import the digital oral model into the wire bending design software to design a repair wire model that meets the repair requirements.

[0016] Optionally, in the step of determining a digital retainer base model with a slot shape based on the digital wire-oral merged model:

[0017] Print out a first oral cavity physical model according to the digital oral cavity model, and determine the base design lines on the first oral cavity physical model;

[0018] Copy the base design lines onto the digital oral model to obtain the base edge contour;

[0019] Based on the base edge contour, a digital retainer base model is generated on the digital oral model to form a digital base oral combined model.

[0020] Optionally, in the step of determining a digital retainer base model with a slot shape based on the digital wire-oral combined model, the method further includes:

[0021] Align the digital wire oral model with the digital base oral model;

[0022] Based on the position of the restoration wire model, the slot shape is cut on the digital retainer base model.

[0023] Optionally, in the step of opening a groove shape on the digital retainer base model based on the position of the restoration wire model:

[0024] The width of the slot shape shall not be less than 2 times the wire diameter + 2 times the bonding gap.

[0025] Optionally, after the step of opening a slot shape on the digital retainer base model based on the position of the repair wire model, the method further includes:

[0026] The thickness of the digital retainer base model at the location where the card slot shape is opened is detected to determine whether the minimum thickness is greater than or equal to the preset safety thickness value.

[0027] Optionally, in the step of installing the steel wire piece in the steel wire slot, and fixing the steel wire piece and the retainer base to obtain a finished transparent retainer:

[0028] The steel wire object and the retainer base object are fixed by light-curing material to obtain a cured retainer, wherein the light-curing material is made of the same material as the printing material of the retainer base object.

[0029] Optionally, before the step of fixing the steel wire object and the retainer base object by light-curing material, the step further includes:

[0030] Put the steel wire into the steel wire slot of the retainer base and fix it with wax to obtain a preliminary fixed retainer;

[0031] Check and adjust the primary fixation retainer to ensure that it is properly positioned.

[0032] Optionally, after the step of fixing the steel wire object and the retainer base object by light-curing material, the step further includes:

[0033] The solidified retainer is ground and polished to obtain a finished transparent retainer.

[0034] On the other hand, the present application also proposes a digital manufacturing system for a transparent holder, which includes: a processor, a memory, and a communication bus;

[0035] The memory stores a computer-readable program executable by the processor;

[0036] The communication bus realizes the connection and communication between the processor and the memory;

[0037] When the processor executes the computer-readable program, the processor implements the steps in the digital manufacturing method of the transparent holder as described above.

[0038] The beneficial effects of the digital manufacturing method and system of a transparent retainer provided by the present application are at least that: by matching the actual steel wire piece with the actual retainer base for digital design, the surface quality and average thickness of the retainer can be well controlled during the digital model making process. Through digital production, preset standards are set to make the production of retainers reach a unified shipping standard, thereby achieving production standardization and ensuring uniform product quality. In addition, computers replace manual production, saving manpower, and multiple computers can simultaneously output the designed data for batch processing, which is more efficient than single-person single production, thereby improving production efficiency. The experience requirements for technicians in the digital production process are reduced, saving labor costs. Therefore, this solution is enough to reduce labor and form an intelligent design and production process, which is the development direction of the current market environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 A flowchart of the main steps of a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0041] Figure 2 A flowchart of detailed steps of a first method of step S300 of a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0042] Figure 3 A flowchart of the detailed steps of the second method of step S300 of the digital manufacturing method of a transparent holder provided in an embodiment of the present application

[0043] Figure 4 A flowchart of the detailed steps of step S500 of a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0044] Figure 5 A schematic diagram of a digital wire-oral combined model in a digital manufacturing method of a transparent retainer provided in an embodiment of the present application;

[0045] Figure 6 A schematic diagram of base design lines in a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0046] Figure 7 A schematic diagram of a model alignment process in a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0047] Figure 8 A schematic diagram of a slot shape forming process in a digital manufacturing method for a transparent holder provided in an embodiment of the present application;

[0048] Fig. 9 A schematic diagram of a fixing process of a retainer base object and a steel wire object in a digital manufacturing method of a transparent retainer provided in an embodiment of the present application;

[0049] Fig.10 A principle block diagram of a digital manufacturing system for a transparent retainer provided in an embodiment of the present application.

[0050] Among them, the reference numerals in the figure are:

[0051] 10. Digital oral model; 11. Alignment point; 20. Digital wire oral merge model; 21. Restoration wire model; 30. Digital base oral merge model; 31. Digital retainer base model; 32. Slot shape; 33. Base edge contour; 40. Physical retainer base; 42. Physical wire part; 50. Processor; 51. Display screen; 52. Memory; 53. Communication interface; 54. Bus. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0053] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0054] Embodiment 1

[0055] like Figure 1 As shown, this embodiment proposes a digital manufacturing method for a transparent retainer, which is mainly used in the medical process of orthodontics to digitize the production of the transparent retainer through software settings. The digital manufacturing method of the transparent retainer of this embodiment mainly includes the following steps:

[0056] Step S100, obtaining a digital oral model of the patient's oral cavity, determining a restoration wire model, and exporting wire data of the restoration wire model and a digital wire oral combined model.

[0057] like Figure 5As shown, in the specific process, the digital oral model 10 is obtained by scanning the patient's oral cavity or the oral cavity; so that the digital oral model 10 can truly reflect the shape of the patient's oral cavity contour. Then the digital oral model is imported into the wire bending design software to design a repair wire model 21 that meets the repair requirements. The digital base oral combined model 20 obtained after merging is: the repair wire model 21 + the digital oral model 10.

[0058] The design process of the repair wire model can be: pre-establishing a database, storing multiple selection data sets in the database, each selection data set contains a digital oral model and a corresponding repair wire model. The repair wire model is model data designed in advance by software based on the digital oral model, and multiple selection data sets basically contain common oral models and corresponding repair wire models.

[0059] The repair wire model is selected in the database through the trained AI model. Specifically, the digital oral model is input into the trained AI model so that the AI ​​model can process and obtain the digital oral model that can be recognized by the database, and then the corresponding repair wire model is selected from the database according to the recognizable digital oral model. In this way, the repair wire model can be matched quickly to obtain the wire shape that meets the patient's needs.

[0060] It should be noted that the restoration wire model can also be obtained by manually drawing on the software according to the digital oral model of the patient's oral cavity, but this process is inefficient.

[0061] Step S200: Perform bending processing according to the steel wire data to obtain a physical steel wire piece.

[0062] like Figure 5 , Fig. 9 As shown, in the specific process, the steel wire data is imported into the automatic snap ring bending machine for bending, so that the bent steel wire piece 42 has the same shape as the repair steel wire model 21. Automatic production by the automatic snap ring bending machine has higher efficiency than manual bending, and can ensure the accuracy and uniform quality standards of the steel wire piece 42.

[0063] Step S300: Determine a digital retainer base model with a slot shape based on the digital wire-oral combined model, wherein the slot shape is reserved according to the repair wire model.

[0064] like Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, in the specific process, the retainer base is designed, and the digital wire-oral combined model 20 is imported into the design software as a reference for design. After the retainer base is designed, the slot shape 32 for the subsequent installation of the actual wire part is reserved according to the position of the repair wire model 21. After completion, the designed digital retainer base model 31 is exported.

[0065] In one approach, if Figure 1 , Figure 2 As shown, step S300 specifically includes the following steps:

[0066] Step S301: Print out a first oral cavity entity model according to the digital oral cavity model, and determine the base design lines on the first oral cavity entity model.

[0067] Step S303: copy the base design lines onto the digital oral model to obtain the base edge contour.

[0068] Step S305: Generate a digital retainer base model on the digital oral model based on the base edge contour to form a digital base-oral combined model.

[0069] In the above steps S311-S305, a first oral cavity physical model with the same shape as the patient's oral cavity is first printed out, and an experienced technician can draw lines on the first oral cavity physical model to confirm the design contour lines of the base. Figure 6 As shown, the design technician then copies the design contour lines on the first oral solid model to the digital oral model 10 in proportion, thereby obtaining a base edge contour 33 on the digital oral model 10, and then generates a digital retainer base model 31 on the digital oral model 10 according to the base edge contour 33, forming a digital base oral combined model 30 (as shown in FIG. Figure 7 As shown). The digital base oral combined model 30 is: digital oral model 10 + digital retainer base model 31. Through this process, experienced technicians only need to draw lines on the first oral solid model, and the rest of the design process can be generated by novices who can operate computers. This ensures that novices can quickly get started and design a design that meets the best restoration plan, ensuring product quality and reducing design difficulty. In addition, the division of labor to complete the design allows experienced technicians to focus only on confirming the design contour lines of the base, and more denture base designs can be completed within a limited time, greatly improving work efficiency.

[0070] Or, if Figure 1 , Figure 3 As shown, in another solution, step S300 specifically includes the following steps:

[0071] Step S311: Draw lines on the digital oral model to confirm the design outline of the base.

[0072] Step S312: Based on the base edge contour, a digital retainer base model is generated on the digital oral model to form a digital base-oral combined model.

[0073] This solution can also solve technical problems, but it requires experienced technicians to design contour lines and generate digital retainer base models. This will increase the experience requirements of employees and lead to increased labor costs.

[0074] After the above steps S301-S305 (the first solution), or after steps S311-S312 (the second solution), step S300 further includes:

[0075] Step S320: aligning the digital wire oral cavity merged model with the digital base oral cavity merged model.

[0076] Step S330: based on the position of the repair wire model, a slot shape is opened on the digital retainer base model.

[0077] like Figure 5 , Figure 6 , Figure 7 As shown, in the specific process, since the steel wire design and the base design are completed in different processes, model alignment is required in the process of combining the two. Therefore, the coordinates of the digital steel wire oral cavity merged model 20 and the digital base oral cavity merged model 30 are aligned. The digital steel wire oral cavity merged model 20 and the digital base oral cavity merged model 30 both contain a digital oral cavity model 10, and the model is used as a design reference. Therefore, the digital oral cavity model 10 in the digital steel wire oral cavity merged model 20 and the digital oral cavity model 10 in the digital base oral cavity merged model 30 are aligned at three points to ensure that the position of the data is not biased and does not affect the subsequent resetting and installation of the physical steel wire part 42.

[0078] The three-point alignment process can be: select three alignment points 11 on the digital oral model 10 in the digital wire oral combined model 20, select three alignment points 11 at the same position in the digital oral model 10 of the digital base oral combined model 30, so that these three positions correspond to each other and overlap, thereby achieving coordinate alignment. The three alignment points 11 can be the points where the two incisors on the dentition of the digital oral model 10 are close to each other, and the apex of the second molars on the left and right sides of the dentition. These three alignment points 11 have high resolution on the model and are obvious, which makes it easy for technicians to observe and distinguish, thereby achieving more accurate matching and ensuring accurate alignment between the digital wire oral combined model 20 and the digital base oral combined model 30.

[0079] like Figure 7 , Figure 8 As shown, when the two models are aligned, the repair wire model 21 can be intuitively reflected on the digital retainer base model 31. According to the position of the repair wire model 21, a slot shape 32 is opened on the digital retainer base model 31, so that the physical wire slot can be manufactured later, so the slot shape 32 is consistent with the shape and size of the physical wire slot obtained in the subsequent production. In the specific process, the width of the slot shape 32 is not less than 2 times the wire diameter + 2 times the bonding gap. In this way, it can be ensured that the wire piece 42 can be smoothly installed in the physical wire slot. In the specific structure, the slot width of the slot shape 32 is set to 3mm, so that after two 0.8mm steel wire pieces are placed at the bottom of the steel wire slot at the same time, there is still a 0.7mm bonding gap on both sides of the steel wire piece entity, and the bonding gap is used to fill the adhesive. In the subsequent bonding, the error of the steel wire entity within the tolerance range of ±0.3mm will not affect the positioning of the steel wire entity, which can reduce the difficulty of operation and facilitate the coordinated installation of the steel wire entity and the wire slot, thereby reducing the difficulty of assembly.

[0080] like Figure 2 , Figure 3 As shown, based on the above steps, it also includes:

[0081] S340, detecting the thickness of the digital retainer base model at the location where the card slot shape is opened, and determining that the minimum thickness is greater than or equal to a preset safety thickness value.

[0082] In the specific process, the preset safety thickness value is set to ensure the structural strength of the entire digital retainer base model at the thinnest point. For example, the preset safety thickness value can be 1mm. When a slot shape is opened on the digital retainer base model, the digital retainer base model is thinnest at the slot shape position. 1mm needs to be reserved at the thinnest position to ensure that the subsequent 3D printing process can be completely and accurately processed. Using a thickness of more than 1mm can ensure that the product meets the strength requirements after molding and avoid the problem of deformation and inability to wear.

[0083] When testing the thickness of the digital retainer base model at the slot shape, if the minimum thickness is less than the preset safety thickness value, the thickness of the entire digital retainer base model needs to be increased until the preset safety thickness value requirement is met. This ensures the structural stability of the produced retainer base and avoids the problem of the retainer base being returned for repair or scrapped due to inability to wear in the subsequent production process.

[0084] It should be noted that the above steps S200 and S300 can be performed simultaneously. Specifically, the steel wire is bent according to the steel wire data to obtain the steel wire piece, and at the same time, a digital retainer base model with a slot shape is produced based on the digital steel wire oral combined model. The simultaneous operation can simplify the production process, shorten the production cycle, and improve the production efficiency of the retainer.

[0085] Step S400: 3D printing the digital retainer base model to obtain a retainer base object, wherein the retainer base object has a wire clip groove corresponding to the shape of the clip groove.

[0086] The digital retainer base model 31 with the card slot shape 32 is exported separately into a 3D printable format, and the exported digital retainer base model 31 with the card slot shape 32 is imported into a 3D printer for 3D printing, thereby obtaining a retainer base object 40 with a wire card slot.

[0087] Step S500: Install the steel wire piece in the steel wire slot, and fix the steel wire piece and the retainer base to obtain a finished transparent retainer.

[0088] like Fig. 9 As shown, the finished transparent retainer is obtained by installing the steel wire piece 42 into the steel wire slot of the retainer base 40 and fixing it.

[0089] Among them, Figure 1 , Figure 4 As shown, step S500 specifically includes the following steps:

[0090] Step S510: Place the steel wire piece into the steel wire slot of the retainer base and fix it with wax to obtain a preliminarily fixed retainer.

[0091] like Fig. 9 As shown, during the initial fixation of the retainer, after the steel wire piece 42 is placed into the steel wire slot of the retainer base 40, the retainer base 40 is placed on the first oral physical model, and the steel wire piece 42 is placed at the predetermined position of the first oral physical model before initial fixation.

[0092] Step S520: Check and adjust the preliminary fixing retainer to ensure that the preliminary fixing retainer is correctly positioned.

[0093] The preliminary fixed retainer is tested. When the preliminary fixed retainer is not properly positioned on the first oral physical model, the position needs to be adjusted in time. Since the wax is used as an adhesive for temporary fixation, the incorrect positioning can be discovered in time, which is convenient for error correction.

[0094] Step S530: fix the steel wire object and the retainer base object by using a photocurable material to obtain a cured retainer, wherein the photocurable material is made of the same material as the printing material of the retainer base object.

[0095] After the retainer is initially fixed in place correctly, the steel wire piece is finally fixed and combined with the retainer base. If traditional orthodontic white glue is used, the material will be layered and the combination will be loose. In view of this situation, this embodiment uses a light-curing material that is the same as the printing material of the retainer base for bonding. After internal testing, this solution can meet product requirements.

[0096] Step S540: grinding and polishing the solidified retainer to obtain a finished transparent retainer.

[0097] During the specific process, the retainer is ground and polished, and the angle of the steel wire is adjusted to obtain an invisible transparent retainer that meets the restoration requirements.

[0098] Since the finished product of the invisible transparent retainer needs to ensure the stability of the structure and avoid falling off and breaking, a risk test is conducted on the existing method and the solution of this application: 3 different splines are made, all of which are scenes that will appear in the product, so as to simulate the structural principles generated by product manufacturing. Control group 1 (normal spline): only the one-piece transparent resin part; control group 2 (reserved groove filling spline): the one-piece molding and the filling transparent resin combination part; experimental group (plus steel wire spline): the one-piece molding and the filling transparent resin plus steel wire combination part. The specific test results are as follows:

[0099] Experimental requirements Normal Spline Reserve groove filling spline Add wire spline Maximum tensile strength (MPa) 45.9 47.4 52.2 Elongation at break (%) 8 5.5 2.6 Tensile elastic modulus (MPa) 2047.8 1754 3540.8 Bending strength(MPa) 77.4 79.66 81.46 Flexural modulus (MPa) 1870.36 1910.16 2427.39

[0100] From the comparison of the test results, it can be concluded that the finished invisible transparent retainer produced by the present application scheme has excellent test indicators and better performance.

[0101] In the above steps S100-S500, the digital design is carried out by matching the physical steel wire piece with the physical retainer base. During the digital model making process, the surface quality and average thickness of the retainer can be well controlled. Through digital production, preset standards are set to make the production of retainers reach a unified shipping standard, thereby realizing production standardization and ensuring the uniform quality of the products. In addition, the computer replaces manual production, which saves manpower. Multiple computers can simultaneously output the designed data for batch processing, which is more efficient than single-person single production and improves production efficiency. The experience requirements for technicians in the digital production process are reduced, saving labor costs. Therefore, this solution is enough to reduce labor and form an intelligent design and production process, which is the development direction of the current market environment. This process is suitable for the production of all transparent retainers, and can complete the processing faster for cases with existing oral scan data.

[0102] Embodiment 2

[0103] like Fig.10 As shown, this embodiment proposes a digital manufacturing system for a transparent retainer, which includes at least one processor (processor) 50, a display screen 51 and a memory (memory) 52, and may also include a communication bus, and the communication bus includes a communication interface (Communications Interface) 53 and a bus 54. The processor 50, the display screen 51, the memory 52 and the communication interface 53 can communicate with each other through the bus 54. The display screen 51 is configured to display a user operation interface and a related three-dimensional software interface. The communication interface 53 can transmit information. The processor 50 can call the logic instructions in the memory 52 to execute the digital manufacturing method of the transparent retainer in the above embodiment.

[0104] In addition, the logic instructions in the above-mentioned memory 52 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. The memory 52, as a computer-readable storage medium, can be configured to store software programs, computer executable programs, such as program instructions or modules corresponding to the method in the embodiment of the present disclosure. The processor 50 executes functional applications and data processing by running the software programs, instructions or modules stored in the memory 52, that is, realizing the digital manufacturing method of the transparent holder in the above-mentioned embodiment.

[0105] The memory 52 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required for a function; the data storage area may store data created according to the use of the terminal system, etc. In addition, the memory 52 may include a high-speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, may also be a transient storage medium.

[0106] In addition, the specific process of loading and executing the plurality of instructions in the storage medium and the processor in the mobile terminal has been described in detail in the method above, and will not be described one by one here.

[0107] In summary, the digital manufacturing method and system of a transparent retainer provided by the present application, the new process method can achieve the design and production of the retainer at the same time, and the digital equipment replaces the technicians to make the product, which frees up the manual labor to join the design, improves production efficiency, and reduces labor costs. Due to the use of digital design, the surface quality and average thickness of the retainer can be controlled by software, and the shipping standard of all retainers can be unified by setting a suitable fixed value, thereby realizing standardized production. Since the labor is saved for design, the designed data can be output by multiple computers at the same time for batch processing, which improves the efficiency compared with the single-person single production.

[0108] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A digital manufacturing method for a transparent holder, characterized in that: The method comprises the steps of: Acquire a digital oral model of the patient's oral cavity, determine a restoration wire model, and export wire data of the restoration wire model and a digital wire-oral combined model; Perform bending processing according to the steel wire data to obtain a physical steel wire piece; Based on the digital steel wire oral combined model, determining a digital retainer base model with a slot shape, wherein the slot shape is reserved according to the repair steel wire model; 3D printing the digital retainer base model to obtain a retainer base object, wherein the retainer base object has a wire slot corresponding to the shape of the slot; The steel wire piece is installed in the steel wire slot, and the steel wire piece and the retainer base are fixed to obtain a finished transparent retainer.

2. The digital manufacturing method of the transparent holder according to claim 1, characterized in that: The steps of obtaining a digital oral model of the patient's oral cavity, determining a restoration wire model, and exporting wire data of the restoration wire model and a digital wire oral combined model include: Obtain a digital oral model by scanning the patient's oral cavity or oral cavity; Import the digital oral model into the wire bending design software to design a repair wire model that meets the repair requirements.

3. The digital manufacturing method of the transparent holder according to claim 2, characterized in that: In the step of determining a digital retainer base model with a slot shape based on the digital wire-oral combined model: Printing out a first oral cavity physical model according to the digital oral cavity model, and determining the base design lines on the first oral cavity physical model; Copying the base design lines onto the digital oral model to obtain the base edge contour; Based on the base edge contour, a digital retainer base model is generated on the digital oral model to form a digital base oral combined model.

4. The digital manufacturing method of the transparent holder according to claim 3, characterized in that: In the step of determining a digital retainer base model with a slot shape based on the digital wire-oral combined model, the step further includes: Aligning the digital wire oral cavity combined model with the digital base oral cavity combined model; Based on the position of the repair wire model, a slot shape is opened on the digital retainer base model.

5. The digital manufacturing method of the transparent holder according to claim 4, characterized in that: In the step of opening a slot shape on the digital retainer base model based on the position of the repair wire model: The width of the slot shape is not less than 2 times the diameter of the steel wire + 2 times the bonding gap.

6. The digital manufacturing method of the transparent holder according to claim 4, characterized in that: After the step of opening a slot shape on the digital retainer base model based on the position of the repair wire model, the step further includes: The thickness of the digital retainer base model at the location where the slot shape is opened is detected to determine whether the minimum thickness is greater than or equal to a preset safety thickness value.

7. The digital manufacturing method of the transparent holder according to claim 1, characterized in that: The step of installing the steel wire object in the steel wire slot, and fixing the steel wire object and the retainer base object to obtain a finished transparent retainer: The steel wire object and the retainer base object are fixed by light-curing material to obtain a cured retainer, wherein the light-curing material is made of the same material as the printing material of the retainer base object.

8. The digital manufacturing method of the transparent holder according to claim 7, characterized in that: Before the step of fixing the steel wire object and the retainer base object by light-curing material, the step further includes: Putting the steel wire piece into the steel wire slot of the retainer base, and fixing it with wax to obtain a preliminary fixed retainer; The preliminary fixing retainer is inspected and adjusted to ensure that the preliminary fixing retainer is correctly positioned.

9. The digital manufacturing method of the transparent holder according to claim 7, characterized in that: After the step of fixing the steel wire object and the retainer base object by light-curing material, the following steps are further included: The solidified retainer is ground and polished to obtain a finished transparent retainer.

10. A digital manufacturing system for a transparent holder, characterized in that: include: Processor, memory and communication bus; The memory stores a computer-readable program executable by the processor; The communication bus realizes the connection and communication between the processor and the memory; When the processor executes the computer-readable program, the processor implements the steps in the digital manufacturing method of the transparent holder as described in any one of claims 1 to 9.

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