CN115179553A - Typesetting method and system for dental 3D printing typesetting software - Google Patents

Abstract

The invention provides a typesetting method and system for dental 3D printing typesetting software, which relates to the technical field of additive manufacturing of dental models. In practical applications of the present application, the height information of the dental three-dimensional model is obtained, and the height information of the dental three-dimensional model is obtained according to the first preset height. The dental three-dimensional model is sliced downward from the occlusal surface of the teeth. When the height of the dental three-dimensional model is an integer multiple of the first preset height, there is no remainder after the slicing is completed, and the dental three-dimensional model is printed; when the height of the dental three-dimensional model is not the first. When an integer multiple of the preset height, there are remaining slices less than the first preset height, and the slice deletion or slice automatic compensation is performed; after the slice deletion or slice automatic compensation is completed, the height of the dental 3D model is the first preset height. Integer multiples to print the dental 3D model. By adopting the technical scheme of the present invention, the integrity of the model can be ensured, and the final and complete restoration of the teeth can be ensured.

Description

Typesetting method and system for dental 3D printing typesetting software

technical field

The invention relates to the technical field of additive manufacturing of dental models, in particular to a typesetting method and system for typesetting software for dental 3D printing.

Background technique

3D printing, also known as Additive Manufacturing (AM), can refer to any process of printing three-dimensional objects. The printing process first comes from a 3D model, which can be modeled by various 3D software, or scanned by a 3D scanner. The resulting model is converted into a file format that can be read by slicing software, such as STL./OBJ., etc. With the help of slicing software, the 3D model is partitioned into layer-by-layer sections, ie slices, which instruct the printer to print layer by layer. After the printer reads the slice file, it can print the desired 3D model. 3D printing is an additive manufacturing technology. Based on the digital model file, the model is cut into a series of thin slices by a computer. Each layer of thin sheets is produced bottom-up, and finally a three-dimensional solid is formed by stacking. This manufacturing technology does not require traditional tools or molds, and can realize the manufacture of complex structures that are difficult or impossible to process with traditional processes, and can effectively simplify the production process and shorten the manufacturing cycle. The current mainstream 3D printing technologies include Fused Deposition Modeling (FDM), Stereo Lithography Apparatus (SLA), Selective Laser Sintering (SLS), Three Dimensional Printing (Three Dimensional Printing) , 3DP), digital light processing technology (Digital Light Procession, DLP) and so on.

At present, there are many typesetting software in the industry. The existing typesetting software for dental 3D printers is roughly sliced with a layer thickness of 0.05mm. After the slice is completed, the remaining less than 0.05mm is deleted by default, which will affect the final printing effect and cannot guarantee the quality of the tooth model. Completion.

SUMMARY OF THE INVENTION

In order to overcome the problems existing in the related art at least to a certain extent, the present application provides a typesetting method and system for dental 3D printing typesetting software, so as to solve the problem of insufficient slice thickness remaining after slicing the dental model in the prior art. Some parts are deleted by default, and the integrity of the tooth model cannot be guaranteed, and it is a technical problem that affects the printing effect.

To achieve the above purpose, the application adopts the following technical solutions:

first,

This application provides a typesetting method for dental 3D printing typesetting software, including:

Acquiring height information of the dental three-dimensional model, and slicing the dental three-dimensional model from the occlusal surface downward according to a first preset height;

When the height of the dental three-dimensional model is an integral multiple of the first preset height, there is no remaining after slicing, and the dental three-dimensional model is printed;

When the height of the dental 3D model is not an integral multiple of the first preset height, there are remaining slices less than the first preset height, and the slice deletion or slice automatic compensation is performed;

After the slice deletion or slice automatic compensation is completed, the dental three-dimensional model is printed if the height of the dental three-dimensional model is an integer multiple of the first preset height.

Further, the first preset height includes any height within the range of 0.02mm-0.99mm.

Further, the slice deletion or slice automatic compensation is selected by the user according to the situation of the dental three-dimensional model;

When choosing to delete the remaining slice height without affecting the integrity of the model, the user chooses to delete the slice;

When choosing to delete the remaining slice height will affect the integrity of the model, the user chooses to perform automatic slice compensation.

Further, the slice deletion or slice automatic compensation is performed at the bottom of the dental three-dimensional model.

Further, it also includes:

Obtain the data information and slice information of the dental 3D model;

The data information includes: global coordinates and the number of patches;

The slice information includes: consumption of consumables and estimated printing time.

Further, the data information is specifically:

Global coordinates: the coordinates of the X-axis, Y-axis and Z-axis, measure the position occupied by the 3D model on the printing layout, and the actual size information of the 3D model;

Number of patches: The number of triangles used in 3D modeling.

Further, the slice information is specifically:

Consumables consumption: Calculate the amount of consumables required for printing according to the model data and slice information;

Estimated printing time: Calculate the time required for printing according to the data and slice information of the model.

Second,

The application provides a typesetting system for dental 3D printing typesetting software, which is characterized in that it includes:

a storage unit for storing height information, data information, and slice information of the dental three-dimensional model;

The measuring unit is used to identify the size of the dental three-dimensional model, the first preset height, and the slice height that should be compensated during automatic compensation;

The printing unit is used for setting printing consumables and printers for printing according to the height, data and slice information of the dental three-dimensional model.

This application adopts the above technical solutions, and at least has the following beneficial effects:

In the practical application of the present application, by measuring the dental three-dimensional model, the dental three-dimensional model is sliced downward from the occlusal surface of the teeth according to the first preset height, when the height of the dental three-dimensional model is an integer multiple of the first preset height When the 3D dental model is not an integral multiple of the first preset height, there are remaining slices less than the first preset height, and the slices are deleted or sliced automatically compensated. , After the slice deletion or slice automatic compensation is completed, the height of the dental three-dimensional model is an integer multiple of the first preset height, and the dental three-dimensional model is printed. The technical solution of the present application can ensure the integrity of the dental model and ensure the printing. A complete dental model and a complete restoration of the teeth are produced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not limiting of the present application.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a flow chart of a typesetting method of dental 3D printing typesetting software according to an exemplary embodiment;

2 is a schematic diagram of a typesetting system of dental 3D printing typesetting software according to an exemplary embodiment;

3 is a schematic diagram of a 3D model according to an exemplary embodiment;

4 is a schematic diagram of a 3D model global coordinate software interface according to an exemplary embodiment;

FIG. 5 is a schematic diagram showing the height of a 3D model deletion slice according to an exemplary embodiment;

6 is a schematic diagram of a dental three-dimensional model according to an exemplary embodiment;

FIG. 7 is a schematic diagram showing the printing settings of a dental three-dimensional model software according to an exemplary embodiment;

Fig. 8 is a schematic diagram of an interface of a dental three-dimensional model software according to an exemplary embodiment.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the examples in this application, all other implementations obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

Please refer to FIG. 1. FIG. 1 is a flow chart of a typesetting method of dental 3D printing typesetting software according to an exemplary embodiment. As shown in FIG. 1, the typesetting method includes the following steps:

In step S1, height information of the dental three-dimensional model is acquired, and the dental three-dimensional model is sliced downward from the occlusal surface of the teeth according to a first preset height.

Specifically, after the 3D model is imported into the typesetting software, the typesetting software performs data recognition on it to obtain height information, and then the user sets the first preset height according to the specific situation of the model, that is, the slice height of the slice, and then proceeds from top to bottom. slice.

In step S2, when the height of the dental three-dimensional model is an integer multiple of the first preset height, there is no residue after slicing, and the dental three-dimensional model is printed.

Specifically, when the first preset height is an integral multiple of the height of the three-dimensional model, that is, the slicing is completed and there is no remaining model, and the three-dimensional model can be completely printed.

Step S3, when the height of the dental three-dimensional model is not an integral multiple of the first preset height, there are remaining slices less than the first preset height, and slice deletion or slice automatic compensation is performed.

Specifically, when the set slice height is not an integral multiple of the height of the 3D model, it means that the model has a remaining part that is not enough for the slice height, and this part needs to be deleted or slice compensation processing, so that the height of the 3D model is an integral multiple of the slice height. multiple.

Step S4, after the slice deletion or slice automatic compensation is completed, the dental three-dimensional model is printed if the height of the dental three-dimensional model is an integer multiple of the first preset height.

Specifically, the choice of deletion or slice compensation should be determined according to the 3D model. If the remaining part is deleted, it will not affect the overall integrity of the model, so you can choose to delete it; if it affects, you need to choose slice compensation to ensure the integrity of the model.

With the technical solution of the present application, it is possible to select whether to delete slices or compensate slices according to the specific shape of the three-dimensional model, which can ensure the integrity of the model.

In one embodiment, the first preset height includes any height within the range of 0.02mm-0.99mm, specifically:

In the existing slices, a slice thickness of 0.05mm is generally selected. In the present application, slice automatic compensation can be completed at a slice thickness of 0.02mm-0.99mm.

In one embodiment, the acquiring data information and slice information of the dental three-dimensional model is specifically:

The typesetting software obtains the data information and slice information of the 3D model, including the global coordinates of the 3D model, size information, the number of triangular facets used in modeling, and whether it is a manifold according to whether the 3D model is regular or not, and the consumption of printing consumables. and estimated print time.

Referring to FIG. 2, FIG. 2 is a schematic diagram of a typesetting system of a dental 3D printing typesetting software according to an exemplary embodiment.

As shown in Figure 2, the typesetting system of the dental 3D printing typesetting software includes:

a storage unit for storing height information, data information, and slice information of the dental three-dimensional model;

The measuring unit is used to identify the size of the dental three-dimensional model, the first preset height, and the slice height that should be compensated during automatic compensation;

The printing unit is used for setting printing consumables and printers for printing according to the height, data and slice information of the dental three-dimensional model.

Please refer to Figures 3, 4, and 5. Figures 3, 4, and 5 are a schematic diagram of a 3D model, a schematic diagram of the global coordinates and the height of the deleted slice.

As shown in Figure 3, the 3D model is a circular table. The coordinates and size information displayed in the typesetting software are shown in Figure 4. The X axis is the direction from the coordinate origin to the right, the Y axis is the forward direction from the origin, and the Z axis For the upward direction from the origin, the global coordinate is the position occupied by the model in the coordinate axis, and the size coordinate is the actual size of the model. As can be seen from Figure 4, the height of this 3D model is 50.02mm.

As shown in Figure 5, Figure 5 is a schematic diagram of the above-mentioned 3D model deleting the slice height. In this embodiment, the slice height is set to 0.05mm, and the 3D circular truncated model with a height of 50.02mm is sliced, and the remaining 0.02mm is finally selected. For the 0.02mm part, if slice compensation is selected, the 0.03mm adjacent layer image will be automatically compensated at the bottom of the model.

Please refer to FIGS. 6 , 7 and 8 . FIGS. 6 , 7 and 8 are a schematic diagram of a dental three-dimensional model and a schematic diagram of a software interface.

As shown in Figure 6, Figure 6 is a schematic diagram of a dental three-dimensional model. The coordinates and slice information displayed in the typesetting software are shown in Figure 8. As can be seen from Figure 8, the size of this dental model is 53.96 × 69.58 × 25.30 (mm ), the slice height is 0.05mm as shown in Figure 7, and the height of the 3D model is an integral multiple of the slice height, so there is no need for slice deletion or slice automatic compensation.

In this application, when the height of the dental 3D model is not an integral multiple of the slice height, slice deletion or slice automatic compensation is performed on it, so that the height of the dental 3D model is an integral multiple of the slice height, so as to ensure the integrity of the model and finally restore it completely. teeth.

Regarding the typesetting system 300 of dental 3D printing typesetting software in the above-mentioned related embodiments, the specific manner in which each module performs operations has been described in detail in the above-mentioned related method embodiments, and will not be described in detail here.

It can be understood that, the same or similar parts in the above embodiments may refer to each other, and the content not described in detail in some embodiments may refer to the same or similar content in other embodiments.

It should be noted that, in the description of the present application, the terms "first", "second" and the like are only used for the purpose of description, and should not be construed as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meanings of "plurality" and "multiple" refer to at least two.

It will be understood that when an element is referred to as being "fixed to" or "disposed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it will be This may be directly connected to another element or intervening elements may be present at the same time, in addition, "connected" as used herein may include wireless connections; use of the word "and/or" includes any of one or more of the associated listed items. One unit and all combinations.

Any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a particular logical function or step of the process , and the scope of the preferred embodiments of the present application includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present application belong.

It should be understood that various parts of this application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be stored in a computer-readable storage medium. When executed, one or a combination of the steps of the method embodiment is included.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (8)

1. a typesetting method of dental 3D printing typesetting software, is characterized in that, comprises the following steps: Acquiring height information of the dental three-dimensional model, and slicing the dental three-dimensional model from the occlusal surface downward according to a first preset height; When the height of the dental three-dimensional model is an integral multiple of the first preset height, there is no remaining after slicing, and the dental three-dimensional model is printed; When the height of the dental 3D model is not an integral multiple of the first preset height, there are remaining slices less than the first preset height, and the slice deletion or slice automatic compensation is performed; After the slice deletion or slice automatic compensation is completed, the dental three-dimensional model is printed if the height of the dental three-dimensional model is an integer multiple of the first preset height. 2 . The method according to claim 1 , wherein the first preset height includes any height within the range of 0.02mm-0.99mm. 3 . 3. The method according to claim 2, wherein, the slice deletion or slice automatic compensation is selected by the user according to the dental three-dimensional model situation; When choosing to delete the remaining slice height without affecting the integrity of the model, the user chooses to delete the slice; When choosing to delete the remaining slice height will affect the integrity of the model, the user chooses to perform automatic slice compensation. 4. The method according to claim 3, wherein the slice deletion or slice automatic compensation is performed at the bottom of the dental three-dimensional model. 5. The method of claim 1, further comprising: Obtain the data information and slice information of the dental 3D model; The data information includes: global coordinates and the number of patches; The slice information includes: consumption of consumables and estimated printing time. 6. The method according to claim 5, wherein the data information is specifically: Global coordinates: the coordinates of the X-axis, Y-axis and Z-axis, measure the position occupied by the 3D model on the printing layout, and the actual size information of the 3D model; Number of patches: The number of triangles used in 3D modeling. 7. The method according to claim 6, wherein the slice information is specifically: Consumables consumption: Calculate the amount of consumables required for printing according to the model data and slice information; Estimated printing time: Calculate the time required for printing according to the data and slice information of the model. 8. A typesetting system for dental 3D printing typesetting software, comprising: a storage unit for storing height information, data information, and slice information of the dental three-dimensional model; The measuring unit is used to identify the size of the dental three-dimensional model, the first preset height, and the slice height that should be compensated during automatic compensation; The printing unit is used for setting printing consumables and printers for printing according to the height, data and slice information of the dental three-dimensional model.

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