A denture coloring method and a denture for regulating multi-scale gradient surface microstructures

Abstract

The present invention relates to a denture coloring method for regulating multi-scale gradient surface microstructures, comprising the following steps: S1: printing microstructures with multi-scale gradients on the surface of a diaphragm through a 3D printer; S2: comparing the color of the patient's teeth with the color of the denture to be stained printed by the 3D printer to obtain a color difference and preparing a staining solution of the corresponding color; S3: placing the diaphragm with the surface microstructure in the staining solution for coloring; S4: adhering the diaphragm to the denture to be stained so that the dye in the staining solution adheres to the surface of the denture, and removing the diaphragm from the surface of the denture after staining is completed; S5: glazing and sintering the denture to obtain a finished denture. The present invention also relates to a denture. The present invention has simple color matching, can achieve color regulation and gradient coloring of the entire surface position of the denture, and belongs to the technical field of denture processing.

Description

Technical Field

[0001] The present invention relates to the technical field of denture processing, and particularly relates to a method for coloring dentures by regulating multi-scale gradient surface microstructures and a denture. Background Art

[0002] With the development of the country, the living standards of the people have been continuously improved, and the types of diets have been continuously enriched. This has also caused certain harm to people's oral health to a certain extent. Carelessness in some aspects may lead to tooth damage, and people have to wear denture crowns or undergo dental implant surgery. In addition, the deepening of the aging population has further expanded the demand for denture products and maintained a relatively high growth rate.

[0003] In addition, the development of 3D printing technology has given more possibilities for design and manufacturing, and has been widely used in fields such as aerospace and automobile manufacturing. Many industries are actively using 3D printing technology to solve the existing industry dilemmas, and dental 3D printing technology has also received more and more attention.

[0004] On the other hand, with the improvement of consumption ability, people are more inclined to choose personalized denture products that fit themselves better and put forward more personalized requirements for denture coloring. However, in traditional production technologies, denture coloring is often completed by technicians manually mixing colors, but this process is time-consuming and has a high labor cost, resulting in an increase in the cost of denture products. Summary of the Invention

[0005] Aiming at the technical problems existing in the prior art, the purpose of the present invention is to provide two methods for coloring dentures by regulating multi-scale gradient surface microstructures, which are simple in color mixing and can achieve color regulation and gradient coloring on the entire surface of the denture.

[0006] Another purpose of the present invention is to provide a denture that fits the color of the patient's oral teeth.

[0007] In order to achieve the above purposes, the present invention adopts the following technical solutions:

[0008] A method for coloring dentures by regulating multi-scale gradient surface microstructures includes the following steps:

[0009] S1: Printing a microstructure with multi-scale gradient on the surface of a diaphragm by a 3D printer;

[0010] S2: Comparing the color of the patient's teeth with the color of the denture to be dyed printed by the 3D printer, obtaining the color difference, and preparing a staining solution with the corresponding color;

[0011] S3: Placing the diaphragm with the surface microstructure in the staining solution for coloring;

[0012] S4: Attach the membrane to the denture to be stained so that the dye in the staining solution adheres to the surface of the denture, and remove the membrane from the surface of the denture after staining is completed;

[0013] S5: Glaze and sinter the denture to obtain the finished denture.

[0014] As an option, the surface multi-scale gradient microstructure is a micro-needle array structure, the micro-needles of the micro-needle array structure are conical structures or semi-conical structures, the micro-needles have a gradient change in the height direction, and the micro-needles are inclined.

[0015] As an option, the multi-level micro-needles are formed between the micro-needles in different columns or rows. The micro-needles at different levels have a gradient change in the height direction, there is a certain distance between the micro-needles at different levels, and this distance can be set to have a gradient change between different levels.

[0016] As an option, the material of the microstructure is the same as that of the membrane or the denture, or the material of the microstructure is a polymer, ceramic or metal.

[0017] As an option, for printing the microstructure on the membrane, the 3D printer selects an inkjet printer, a ceramic printer or a laser printer, and for printing the denture, a ceramic printer is selected.

[0018] As an option, in step S4, the method of placing the membrane with the surface microstructure in the staining solution for coloring is to completely or partially immerse the membrane in the staining solution.

[0019] As an option, in step S2, the staining solution is prepared by dissolving or dispersing a solid dye in a solvent.

[0020] A method for coloring a denture with a multi-scale gradient surface microstructure regulation includes the following steps,

[0021] S1: Print a denture with a surface multi-scale gradient microstructure through a 3D printer;

[0022] S2: Compare the color of the patient's teeth with the color of the denture to be stained printed by the 3D printer, obtain the color difference and prepare the corresponding color staining solution;

[0023] S3: Place the denture in the staining solution for coloring;

[0024] S4: Glaze and sinter the denture to obtain the finished denture.

[0025] As an option, in step S3, the method of placing the denture in the staining solution for coloring is to completely or partially immerse the denture in the staining solution.

[0026] A denture is prepared by using a method for coloring a denture with a multi-scale gradient surface microstructure regulation.

[0027] Generally speaking, the present invention has the following advantages:

[0028] The present invention prints microstructures with multi-scale gradients on the surface of a diaphragm or denture through a 3D printer, places the diaphragm or denture in a dye solution corresponding to the color difference between the to-be-stained denture and the patient's tooth color. The multi-scale gradient structure on the microstructure can control the directional movement of the staining solution, thereby realizing color regulation and gradient coloring at all surface positions of the denture, making it more suitable for the color of the patient's oral teeth. It realizes more personalized customization of denture products, saves the operation of manual staining, reduces the time consumption and cost, and is conducive to automated production. Description of the Drawings

[0029] Figure 1 It is a flowchart of a method for coloring a denture.

[0030] Figure 2 It is a top view of a microstructure for easily regulating the color of a denture printed on a diaphragm.

[0031] Figure 3 It is a three-dimensional view of a microstructure for easily regulating the color of a denture printed on a diaphragm, with different tilting angles of the micro needles on the diaphragm.

[0032] Figure 4 It is a three-dimensional view of a micro needle.

[0033] Among them, 1 is the diaphragm and 2 is the micro needle. Detailed Description of the Invention

[0034] The present invention will be further described in detail below in combination with specific embodiments.

[0035] Embodiment 1

[0036] A method for coloring a denture regulated by a multi-scale gradient surface microstructure in this embodiment includes the following steps:

[0037] S1: Print a microstructure with multi-scale gradients on the surface of the diaphragm through a 3D printer;

[0038] S2: Compare the color of the patient's teeth with the color of the to-be-stained denture printed by the 3D printer, obtain the color difference, and prepare a dye solution with the corresponding color;

[0039] S3: Place the diaphragm with the surface microstructure in the dye solution for coloring;

[0040] S4: Adhere the diaphragm to the to-be-stained denture to make the dye in the dye solution adhere to the surface of the denture, and remove the diaphragm from the surface of the denture after the staining is completed;

[0041] S5: Glaze and sinter the denture to obtain the finished denture. Glaze the denture and place it in a sintering furnace for sintering. After sintering, the dyes and transparent glaze in the staining solution will solidify on the surface of the denture, and the transparent glaze will play a protective role on the surface of the denture, finally obtaining the finished denture.

[0042] The surface multi-scale gradient microstructure is a micro-needle array structure. The micro-needles of the micro-needle array structure are conical or semi-conical structures. The micro-needles have a gradient change in the height direction and are inclined. In this embodiment, the micro-needles are semi-conical. In this embodiment, the inclination angle of the micro-needles is a, 0° < a < 90°. In this embodiment, a = 45°.

[0043] The micro-needles between different columns or rows form multi-level micro-needles. The different-level micro-needles have a gradient change in the height direction, and there is a certain distance between different-level micro-needles, and this distance can be set to have a gradient change between different levels.

[0044] This micro-needle structure is a structure with a gradient change in the height direction. The micro-needle structure is a conical or semi-conical structure, and the micro-needles have a certain variable inclination angle. The curved surface structure on the conical or semi-conical structure of the micro-needles can be designed into various structures. The micro-needles in the array can be arranged in any direction to set the height gradient, thus forming a surface microstructure with multi-scale gradients. Specifically, such as the surface microstructure of pine needles, the structure of hedgehog needles, the multi-level pyramid structure, etc.

[0045] The material of the microstructure is the same as that of the diaphragm or denture, or the material of the microstructure is a printable polymer, ceramic or metal, such as acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate (PC), zirconia ceramic, alumina ceramic, iron-based alloy, copper alloy, titanium-based alloy, etc. In this embodiment, the material of the microstructure is the same as that of the diaphragm.

[0046] The 3D printer selects an inkjet printer, a ceramic printer or a laser printer for printing the microstructure on the diaphragm, and selects a ceramic printer for printing the denture. In this embodiment, the 3D printer selects an inkjet printer for printing the microstructure on the diaphragm.

[0047] In step S4, the method of placing the diaphragm with the surface microstructure in the staining solution for coloring is to completely or partially immerse the diaphragm in the staining solution. In this embodiment, the method of placing the diaphragm with the surface microstructure in the staining solution for coloring is to completely immerse the diaphragm in the staining solution. After a certain period of time, different parts of the diaphragm surface will adhere to different amounts of the staining solution due to the regulation of the scale gradient microstructure, thereby realizing coloring regulation and gradient coloring; then adhere the diaphragm to the denture to be stained, so that the dyes on the diaphragm adhere to the surface of the denture, and then remove the diaphragm.

[0048] In step S2, the staining solution is prepared by dissolving or dispersing solid dyes in a solvent. In this embodiment, the staining solution is prepared by dissolving solid dyes in a solvent. The solid dyes are inorganic or organic pigments currently used in the oral cavity and composite pigments obtained by mixing them in different proportions.

[0049] Embodiment 2

[0050] A denture coloring method for regulating multi-scale gradient surface microstructures in this embodiment includes the following steps:

[0051] S1: Printing a denture with a surface multi-scale gradient microstructure through a 3D printer;

[0052] S2: Comparing the color of the patient's teeth with the color of the denture to be stained printed by the 3D printer, obtaining the color difference, and preparing a staining solution with the corresponding color;

[0053] S3: Placing the denture in the staining solution for coloring; after a certain period of time, different amounts of the staining solution are attached to different parts of the denture surface due to the regulation of the scale gradient microstructure, thereby achieving coloring regulation and gradient coloring.

[0054] S4: Glazing and sintering the denture to obtain a finished denture.

[0055] In step S3, the method of placing the denture in the staining solution for coloring is to completely or partially immerse the denture in the staining solution.

[0056] Parts not mentioned in this embodiment are the same as those in Embodiment 1.

[0057] Embodiment 3

[0058] A denture in this embodiment is prepared by using a denture coloring method for regulating multi-scale gradient surface microstructures.

[0059] The structure of the denture is based on the actual three-dimensional structure of the missing teeth of the patient, and a surface microstructure with multi-scale gradients is printed at the positions on the denture surface that need to be colored.

[0060] Parts not mentioned in this embodiment are the same as those in Embodiment 1.

[0061] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A denture coloring method for regulating multi-scale gradient surface microstructures, characterized in that: It includes the following steps: S1: Print microstructures with multi-scale gradients on the surface of the diaphragm through a 3D printer; S2: Compare the tooth color of the patient with the color of the denture to be stained printed by the 3D printer, obtain the color difference, and prepare a staining solution of the corresponding color; S3: Place the diaphragm with surface microstructures in the staining solution for coloring; S4: Adhere the diaphragm to the denture to be stained so that the dye in the staining solution adheres to the surface of the denture, and remove the diaphragm from the surface of the denture after staining; S5: Glaze and sinter the denture to obtain the finished denture.

2. A denture coloring method for regulating multi-scale gradient surface microstructures according to claim 1, characterized in that: The surface multi-scale gradient microstructure is a micro-needle array structure. The micro-needles of the micro-needle array structure are conical or semi-conical structures. The micro-needles have a gradient change in the height direction and are inclined.

3. A denture coloring method for multi-scale gradient surface microstructure regulation according to claim 2, characterized in that: The multi-stage micro-needles are formed between the micro-needles in different columns or rows, and the micro-needles at different levels have a gradient change in the height direction.

4. A denture coloring method for multi-scale gradient surface microstructure regulation according to claim 1, characterized in that: The material of the microstructure is the same as that of the diaphragm or the denture, or the material of the microstructure is a polymer, ceramic or metal.

5. A denture coloring method for multi-scale gradient surface microstructure regulation according to claim 1, characterized in that: The 3D printer selects an inkjet printer, a ceramic printer or a laser printer for printing the microstructures on the diaphragm, and selects a ceramic printer for printing the denture.

6. A denture coloring method for regulating multi-scale gradient surface microstructures according to claim 1, characterized in that: In step S4, the method of placing the diaphragm with surface microstructures in the staining solution for coloring is to completely or partially immerse the diaphragm in the staining solution.

7. A denture coloring method for multi-scale gradient surface microstructure regulation according to claim 1, characterized in that: In step S2, the staining solution is prepared by dissolving or dispersing a solid dye in a solvent.

8. A denture coloring method for regulating multi-scale gradient surface microstructures, characterized in that: It includes the following steps: S1: Print a denture with a surface multi-scale gradient microstructure through a 3D printer; the surface multi-scale gradient microstructure is a micro-needle array structure. The micro-needles of the micro-needle array structure are conical or semi-conical structures. The micro-needles have a gradient change in the height direction and are inclined; S2: Compare the tooth color of the patient with the color of the denture to be stained printed by the 3D printer, obtain the color difference, and prepare a staining solution of the corresponding color; S3: Place the denture in the staining solution for coloring; S4: Glaze and sinter the denture to obtain the finished denture.

9. A denture coloring method for multi-scale gradient surface microstructure regulation according to claim 8, characterized in that: In step S3, the method of placing the denture in the staining solution for coloring is to completely or partially immerse the denture in the staining solution.

10. A denture, characterized in that, It is prepared by using the denture coloring method for regulating the multi-scale gradient surface microstructure described in any one of claims 1-9.

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