Digital porcelain coating method for false tooth
Through digital technology and automated denture porcelain process, the quality problems caused by manual operation in traditional processes are solved, and efficient and accurate denture production and personalized customization are achieved.
Patent Information
- Application Number
- CN202510000783.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-05-02
AI Technical Summary
Traditional denture porcelain and car porcelain technology require high manual skills and working hours, resulting in product quality problems, such as poor color shading effect, inaccurate form, and poor edge sealing.
Digital technology and automation equipment are adopted to automate the process of denture porcelain crown porcelain, and through the combination of digital scanning, design, manufacturing and automatic porcelain powder stacking and high-temperature sintering are realized.
It improves production efficiency, reduces labor intensity, improves production accuracy and comfort, realizes personalized customization, reduces the process of car porcelain, and ensures the stability and consistency of product quality.
Smart Images
Figure CN119908866A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of oral restoration, and in particular to a denture digital porcelain-plating method. Background Art
[0002] The manufacturing process of denture porcelain crowns requires the process of porcelain application and porcelain turning to achieve the purpose of covering the base color and stacking the appearance. The porcelain application process is to use a porcelain application pen to stack porcelain powder on the outer surface of the prepared metal or ceramic bottom crown; in this process, the thickness of the porcelain powder stacking needs to be controlled to ensure the final crown proximity and jaw relationship. Then the porcelain process is required to form the initial porcelain teeth.
[0003] The porcelain turning process is to use a manual grinder to grind and refine the initial porcelain teeth after the porcelain is applied, to ensure that the shape, size, edges and other aspects of the porcelain teeth meet the requirements, making their surface smoother and closer, and achieving the final perfect form.
[0004] In today's oral medical field, the rapid advancement of technology is constantly promoting the innovation and optimization of treatment methods; among them, oral restoration technology, as a key link in improving the quality of life of patients, is particularly noteworthy for its development and improvement; with the deep integration of material science, precision manufacturing and automation technology, the production process of dentures is entering a new stage of development. In the traditional denture porcelain and porcelain turning process, the existing technology is completed manually using manual tools, which requires a high level of manual skills and working hours, otherwise the product will have quality problems, such as poor color masking effect, inaccurate shape, poor edge sealing, etc. Summary of the invention
[0005] The purpose of the present invention is to provide a fully automatic denture porcelain coating method. By adopting digital technology and automation equipment, the automation of the denture porcelain crown coating process is realized, and the process of porcelain cutting is eliminated, thereby improving production efficiency, reducing manual labor intensity, and improving production accuracy and comfort; at the same time, the present invention aims to achieve personalized customization to meet the needs of different patients.
[0006] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: A method for digital porcelain-plating of dentures, the specific steps of the method for digital porcelain-plating are as follows: 1) Digital scanning: Use intraoral scanning or extraoral model scanning to obtain the patient's oral data, mainly collecting periodontal conditions, occlusal relationships, etc., in order to develop a more accurate restoration plan; 2) Digital design: Import oral scan data into computer-aided design software to design dentures; with the help of CAD software, design the three-dimensional material and color data of the denture crown and the upper porcelain part according to the patient's oral data and needs; the thickness of the denture crown is designed to be greater than 0.3mm; 3) Digital manufacturing: the process of converting the design plan into an actual denture using computer-aided manufacturing (CAM) technology; using CNC machine tool processing, 3D printing and other technologies to process the digital data of metal or ceramic denture crowns into three-dimensional entities; 4) High-temperature sintering: Place the ceramic crown in a sintering furnace for high-temperature crystallization sintering to make its particles more tightly combined to form a dense ceramic, making the crown harder; or place the metal crown in an annealing furnace for high-temperature annealing to eliminate metal stress, reduce deformation, and improve the stability of the metal crown; 5) Digital porcelain coating: Place the denture bottom crown into the digital porcelain coating equipment, import the three-dimensional data of the denture porcelain coating part, and the digital porcelain coating machine will stack the porcelain liquid layer by layer on the outer surface of the denture bottom crown according to the three-dimensional material and color data; the digital porcelain coating has a single-layer porcelain coating thickness of 0.01-0.2mm and 1-10 porcelain coating colors; 6) Porcelain: Place the upper porcelain crown on the sintering plate and send it into the vacuum porcelain furnace to perform the porcelain sintering procedure. After high-temperature sintering, the porcelain powder and the base material of the denture bottom crown fuse to form a restoration that is wear-resistant, pressure-resistant, has good gloss and beautiful appearance, and can form a dense protective layer on the surface of the denture, making the denture more stable, comfortable and beautiful; the porcelain temperature is 600-1000℃, and the time is 3-10 minutes; 7) Automatic polishing: Put the porcelain crown into the automatic polishing machine to remove the burrs and attachments generated during the production process of the porcelain denture, and improve the surface finish and transparency of the denture; the polishing medium is polishing paste; 8) Quality inspection is to conduct quality inspection on the finished product to ensure that its color-shading effect, shape and edge sealing meet the requirements.
[0007] In step 4), the sintering temperature is 1400-1600° C., and the holding time is 0.5-3 hours; the annealing temperature is 600-900° C., and the holding time is 1-4 hours.
[0008] The present invention provides a fully automatic denture porcelain coating method, which realizes the automation of the denture porcelain crown porcelain coating process by adopting digital technology and automation equipment. The porcelain coating operation is performed (spraying) by an automatic porcelain coating machine (porcelain coating robot), and the porcelain coating color is automatically modulated by a computer, thereby ensuring that the color, shape and other requirements of the porcelain coating result are consistent with the design, and no manual stacking is required, and the porcelain turning process is eliminated, thereby improving production efficiency, reducing manual labor intensity, improving manufacturing accuracy and comfort, and the product quality is accurately controllable; the automation of the denture porcelain crown porcelain coating process is realized, reducing manual labor intensity, and improving production efficiency and manufacturing accuracy; in addition, the present invention also has the following beneficial effects: Personalized customization: The present invention can be customized according to the needs of patients to meet the oral restoration needs of different patients. This makes the denture production more in line with the patient's oral condition and aesthetic requirements, and improves the patient's satisfaction and comfort; 2. Reduce the porcelain turning process: Compared with the traditional process, the present invention realizes the uniform laying of porcelain powder through the fully automatic porcelain-laying method, without the need for porcelain turning treatment, simplifies the process flow and improves production efficiency; 3. Stable quality: The present invention adopts digital technology and automated equipment to make the denture production process more precise and stable, reduce quality fluctuations caused by manual operation, and improve product consistency and stability.
[0009] 4. Reduce costs: Through this invention, the dependence on skilled workers can be reduced and labor costs can be reduced; at the same time, the application of automation equipment and digital technology can help reduce production costs and improve the economic benefits of enterprises; 5. Environmental protection and energy saving: The present invention adopts a fully automatic porcelain-plating method, which reduces manual operations in the production process, reduces energy consumption, and helps to achieve green production; 6. Wide application: The present invention is applicable to denture manufacturers, dental hospitals and related research institutions and has broad application prospects.
[0010] In summary, the present invention has the advantages of high production efficiency, high manufacturing precision, good comfort, personalized customization, cost reduction, environmental protection and energy saving, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The present invention is a flow chart of a denture digital porcelain-plating method.
[0012] Figure 2 A schematic diagram of a denture digital design data model. DETAILED DESCRIPTION
[0013] The present invention can be implemented according to specific needs, and the following is a possible implementation method: like Figure 1 , Figure 2 As shown, step 1: using intraoral scanning to obtain oral preparation data 1 such as periodontal and occlusal relationship of the patient's prepared teeth 9; Step 2: Import the oral scan data into the computer-aided design (CAD) software for denture design; design the metal pure titanium denture bottom crown data 2 and the bottom crown thickness 0.5mm according to the patient's oral data and customer needs; design the final shape of the denture restoration, through the final shape and the aforementioned denture bottom crown data 2; glaze data 4, glaze thickness 0.2mm; porcelain data 3, porcelain color 5 is A2 color; Step 3: Use metal 3D printing to manufacture a pure titanium denture crown 6; Step 4: Place the pure titanium crown 6 in an annealing furnace for high temperature annealing to eliminate metal stress. Set the annealing temperature to 850°C and the holding time to 2 hours; Step 5: Grind off the support rod of the annealed pure titanium bottom crown 6, and put it into the automatic polishing machine for polishing to remove burrs; Step 6: Put the polished pure titanium bottom crown 6 into the digital porcelain equipment, import the denture porcelain data 3 and color data 5, the digital porcelain machine will automatically mix the required porcelain liquid color, and stack the porcelain liquid layer by layer on the outer surface of the pure titanium bottom crown 6 according to the porcelain data 3 to obtain the porcelain denture crown 7; set the single-layer porcelain thickness to 0.1mm; Step 7: Place the porcelain denture crown 7 on the sintering plate, send it into the vacuum porcelain furnace, execute the porcelain sintering program, set the porcelain temperature to 930°C, the time to 4 minutes, and the vacuum to -96, and then the porcelain tooth 8 can be obtained; Step 8: Place the porcelain crown 8 into an automatic polishing machine to remove burrs and attachments; Step 9: Conduct quality inspection on the finished product to ensure that its color-masking effect, shape and edge sealing meet the requirements.
[0014] Through the above implementation methods, efficient, high-quality, and personalized customization of the fully automatic denture porcelain-plating method can be achieved.
Claims
1. A method for digital denture porcelain application, characterized in that: The specific steps of the digital porcelain method are as follows: 1) Digital scanning: Use intraoral scanning or extraoral model scanning to obtain the patient's oral data, mainly collecting periodontal conditions, occlusal relationships, etc., in order to develop a more accurate restoration plan; 2) Digital design: Import oral scan data into computer-aided design software to design denture solutions; With the help of CAD software, the three-dimensional material and color data of the denture bottom crown and the upper porcelain part are designed according to the patient's oral data and needs; the design thickness of the denture bottom crown is greater than 0.3mm; 3) Digital manufacturing: the process of converting the design into actual dentures using computer-aided manufacturing (CAM) technology; Use CNC machine tool processing, 3D printing and other technologies to process the digital data of metal or ceramic denture crowns into three-dimensional entities; 4) High-temperature sintering: Place the ceramic crown in a sintering furnace for high-temperature crystallization sintering to make its particles more tightly combined to form a dense ceramic, making the crown harder; or place the metal crown in an annealing furnace for high-temperature annealing to eliminate metal stress, reduce deformation, and improve the stability of the metal crown; 5) Digital porcelain coating: Place the denture bottom crown into the digital porcelain coating equipment, import the three-dimensional data of the denture porcelain coating part, and the digital porcelain coating machine will stack the porcelain liquid layer by layer on the outer surface of the denture bottom crown according to the three-dimensional material and color data; the digital porcelain coating has a single-layer porcelain coating thickness of 0.01-0.2mm and 1-10 porcelain coating colors; 6) Porcelain: Place the upper porcelain crown on the sintering plate and send it into the vacuum porcelain furnace to perform the porcelain sintering procedure. After high-temperature sintering, the porcelain powder and the base material of the denture bottom crown fuse to form a restoration that is wear-resistant, pressure-resistant, has good gloss and beautiful appearance, and can form a dense protective layer on the surface of the denture, making the denture more stable, comfortable and beautiful; the porcelain temperature is 600-1000℃, and the time is 3-10 minutes; 7) Automatic polishing: Put the porcelain crown into the automatic polishing machine to remove the burrs and attachments generated during the production process of the porcelain denture, and improve the surface finish and transparency of the denture; the polishing medium is polishing paste; 8) Quality inspection is to conduct quality inspection on the finished product to ensure that its color-shading effect, shape and edge sealing meet the requirements.
2. A denture digital porcelain-plating method according to claim 1, characterized in that: In step 4), the sintering temperature is 1400-1600° C., and the holding time is 0.5-3 hours; the annealing temperature is 600-900° C., and the holding time is 1-4 hours.