A digital full mouth suction denture processing technology

Abstract

The application relates to the technical field of oral prosthetics, and discloses a digital full-mouth adsorptive denture processing technology, which comprises the following steps: scanning a patient's oral cavity to obtain digitalized oral cavity data, importing the digitalized oral cavity data into CAD software, carrying out digitalized design, and obtaining processing model data and corresponding denture grain data; the application breaks through the limitation that an integral or split resin disc scheme in the prior art must rely on a single material system, realizes deep fusion of the hardness, color and level of the finished grain and the precision advantage of digital processing through a process flow of first numerically controlling engraving a groove guide plate on an acrylic plate, then embedding a traditional finished denture grain, and finally pouring gum glue and high-temperature and high-pressure polymerization, meanwhile, a three-stage strategy of embedding teeth first and then polymerizing and then overall finishing is adopted, so that the teeth and gum parts are clearly distinguished between red and white, transition is natural, and the color difference and gum line displacement problems caused by artificial trimming and repairing are avoided.

Description

Technical Field

[0001] This invention relates to the field of oral restoration technology, and more specifically, to a digital full-mouth absorbent denture manufacturing process. Background Technology

[0002] A digital full-mouth absorbent denture manufacturing process refers to a modern manufacturing process that combines digital technologies such as intraoral scanning, facial scanning, and mandibular movement trajectory recording with the functional impression principle of absorbent dentures. By acquiring three-dimensional data of the oral cavity and face of edentulous patients, the personalized edge extension, posterior embankment closure, and polished surface morphology of the denture base are virtually designed in specialized CAD software, and artificial teeth are precisely arranged. Then, a high-precision denture prototype or final restoration is produced using 3D printing or CNC cutting.

[0003] Current digital full-mouth absorbent denture manufacturing processes face bottlenecks in resin plate molding: One-piece two-color plates, molded from a single resin unit, result in teeth with significantly less hardness and color gradation compared to traditional pre-made dentures. The base color is often dull, and the teeth and gums appear excessively stiff, necessitating extensive manual finishing and touch-ups, which is time-consuming, labor-intensive, and prone to color discrepancies. Separate two-color plates require separate fabrication of the teeth and base before bonding, which can alter the occlusal relationship during bonding and necessitates manual trimming of the gingival margin after glue overflow, also time-consuming and labor-intensive. Furthermore, while one-piece shell-shaped plates can improve the transition shape, they are extremely expensive, lack price competitiveness, and require stringent data coordinate accuracy; any deviation in coordinates can directly lead to gingival line displacement. These shortcomings mean that existing processes cannot meet the clinical and manufacturing needs of absorbent dentures in terms of automation, cost control, and positional accuracy stability. Summary of the Invention

[0004] To overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a digital full-mouth suction denture processing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A digital full-mouth suction denture manufacturing process, the process comprising: S101: Scan the patient's oral cavity to obtain digital oral data, import the digital oral data into CAD software for digital design, and obtain processing model data and corresponding denture tooth particle data; S102: Import the machining model data into the layout software for layout, adjust its position and orientation in the blank, and add support rods to generate the toolpath file; S103: Place the acrylic sheet on the support mold, process the acrylic sheet using the toolpath file to create the grooved guide plate, place the corresponding denture teeth in sequence on the grooved guide plate and perform high-pressure polymerization to obtain a unique resin cake containing removable denture information. S104: The unique resin cake containing information about the removable denture is finely processed to obtain a removable denture restoration. The removable denture restoration is then ground and polished to obtain a denture restoration.

[0006] It should be noted that scanning the patient's oral cavity to obtain digital oral data can be done using either the direct digital method or the traditional digital impression method. The direct digital method specifically involves using an intraoral scanner to scan the soft tissues of the patient's upper and lower jaws, including the gums, alveoli, and alveolar bone, to obtain digital oral data. The traditional method of digitizing printing molds involves: using printing mold materials and a suitable mold tray to print, obtaining an initial printing mold model, scanning it with a scanner to obtain digitized initial printing mold data, and then importing the initial printing mold data into CAD design software.

[0007] Furthermore, the digital design process includes: After the denture teeth are aligned, a personalized tray is made. Once the alignment is complete, a physical personalized tray is printed using a 3D printer. Rubber material is applied to the surface of the physical personalized tray, and it is placed in the patient's mouth for a second impression to obtain the final model data. The final model data is imported into CAD software for the selection and placement of denture particles and the design of the gum liners, resulting in the processing model data and the corresponding denture particle data.

[0008] Furthermore, the step of adjusting its position and orientation in the billet and adding support rods to generate the toolpath file includes: Based on the repaired data, add support rods and check whether there is an edge line at the transition position between each tooth and the gum. If there is no edge line, draw the edge line manually and then generate the toolpath file.

[0009] Furthermore, the toolpath file includes: a first toolpath file for machining the guide plate for placing the tooth groove of the finished denture and a second toolpath file for machining the removal of excess gum glue in the removable denture.

[0010] Further, the step of placing the corresponding denture particles sequentially on the grooved guide plate and performing high-pressure polymerization includes: Place the corresponding denture beads into the grooved guide plate one by one according to the tooth number, and check whether the outer arc of each denture bead fits the arc of the grooved guide plate. The gingival adhesive is prepared, and the denture particles are fixed on the grooved guide plate. The gingival adhesive is poured into the carrier mold on which the denture particles are fixed, and then transferred to a pressure cooker for polymerization reaction under high temperature and high pressure to obtain a unique resin cake containing information about the removable denture.

[0011] Furthermore, the unique resin biscuit containing the information of the removable denture is further refined, specifically by: clamping the unique resin containing the information of the removable denture, removing excess gum glue by moving the second cutting path file, and obtaining the removable denture restoration.

[0012] An electronic device includes a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the aforementioned digital full-mouth suction denture processing technology.

[0013] A computer-readable storage medium storing a computer program that, when executed, implements the aforementioned digital full-mouth suction denture processing technology.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This application discloses a digital full-mouth absorbent denture manufacturing process, including: scanning the patient's oral cavity to obtain digital oral data, importing the digital oral data into CAD software to generate a digital model, performing digital design, and obtaining processing model data and corresponding denture particles. Based on the above features, this invention breaks through the limitation of existing integrated or split resin disc solutions that must rely on a single material system. By first CNC carving a groove guide plate on an acrylic plate, then embedding traditional pre-made denture particles, and finally pouring gingival glue for high-temperature and high-pressure polymerization, the hardness, color, and layering of the pre-made particles are deeply integrated with the precision advantages of digital processing. At the same time, the three-stage strategy of first embedding the teeth, then polymerizing, and then performing overall fine processing makes the teeth and gums distinct and the transition natural, avoiding the color difference and gingival line displacement problems caused by manual repair and restoration. It truly achieves the triple technical goals of preserving the performance of traditional materials, leveraging the advantages of digital precision, and realizing free combination and customization. Attached Figure Description

[0015] Figure 1 A flowchart of a digital full-mouth absorbent denture manufacturing process provided by the present invention; Figure 2 A schematic diagram of the structure of an electronic device provided by the present invention; Figure 3 This is a schematic diagram of the structure of a computer-readable storage medium provided by the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please see Figure 1 As shown, this embodiment discloses a digital full-mouth suction denture manufacturing process, the process including: S101: Scan the patient's oral cavity to obtain digital oral data, import the digital oral data into CAD software for digital design, and obtain processing model data and corresponding denture tooth particle data; The digital design process includes: After the denture teeth are aligned, a physical personalized tray is printed using a 3D printer. Rubber material is applied to the surface of the physical personalized tray, and it is placed in the patient's mouth for a second impression to obtain the final model data. The final model data is imported into CAD software for the selection and placement of denture particles and the design of the gum liners, resulting in the processing model data and the corresponding denture particle data.

[0018] Specifically, this includes: selection and placement of prefabricated denture teeth: Select suitable prefabricated denture teeth from the tooth tooth database in the CAD design software, place each tooth tooth, check the direction and angle of the tooth tooth, the occlusal relationship between the upper and lower jaws, ensure there is no collision, and make necessary adjustments.

[0019] At the same time, the thickness of the gum liner portion of the denture is designed to ensure that parameters affecting usability and aesthetics, such as smooth edge transitions and fullness at the gum root, meet the requirements.

[0020] S102: Import the machining model data into the layout software for layout, adjust its position and orientation in the blank, and add support rods to generate the toolpath file; As a specific implementation method, the processing model data is imported into typesetting software for typesetting, including: Import the processing model data into typesetting software, such as DGshape dental CAM, adjust the placement depth of the digital removable denture restoration data in the DK2-53 mold box, and also adjust the placement position of the dental arch orientation.

[0021] It is important to emphasize that each finished denture tooth piece must be embedded in the acrylic plate of the DK2-53 type box by at least 1 / 2 of its height.

[0022] The DK2-53 mold box consists of a base mold box body and an insertable acrylic plate. Precise positioning is achieved through locating pins. In this embodiment, it primarily serves the following functions: firstly, it acts as a processing carrier for the pre-finished denture tooth particle groove guide plate, forming precisely accommodating arc-shaped grooves on the acrylic plate through CNC engraving; secondly, it serves as a molding mold for the gingival glue polymerization reaction, completing the gingival glue injection, high-temperature and high-pressure polymerization and curing after tooth particle insertion within the mold box, ultimately forming a resin cake semi-finished product containing complete denture information. This mold box must be used in conjunction with the ZMA2-53DC special fixture to achieve seamless integration with DWX-53D / 53DC series cutting equipment.

[0023] The process of adjusting its position and orientation in the billet and adding support rods to generate the toolpath file includes: Based on the repaired data, add support rods and check whether there is an edge line at the transition position between each tooth and the gum. If there is no edge line, draw the edge line manually and then generate the toolpath file.

[0024] The edge line is the gingival margin where the tooth transitions to the denture base.

[0025] The design aims to prevent removable dentures from falling out or detaching during processing using support rods (the support rods continuously support the denture throughout the entire processing and will not be removed).

[0026] Furthermore, the toolpath file includes: a first toolpath file for machining the guide plate for placing the tooth groove of the finished denture and a second toolpath file for machining the removal of excess gum glue in the removable denture.

[0027] S103: Place the acrylic sheet on the support mold, process the acrylic sheet using the toolpath file to create the grooved guide plate, place the corresponding denture teeth in sequence on the grooved guide plate and perform high-pressure polymerization to obtain a unique resin cake containing removable denture information. Simultaneously, the acrylic sheet is placed on the support mold and glued firmly. Then, it is inserted into the ZMA2-53DC fixture, the screws are tightened, and it is then placed into the fixture bracket of the DWX-53D or 53DC machine and secured. The first toolpath file is then run within the machine.

[0028] The adhesive can be 502 glue, or other conventional commercially available products in other implementation methods. This application does not limit the choice of adhesive.

[0029] Further, the step of placing the corresponding denture particles sequentially on the grooved guide plate and performing high-pressure polymerization includes: Place the corresponding denture beads into the grooved guide plate one by one according to the tooth number, and check whether the outer arc of each denture bead fits the arc of the grooved guide plate. Prepare the gingival adhesive, fix the denture particles onto the grooved guide plate, pour the gingival adhesive into the grooved guide plate where the denture particles are fixed, and then transfer it to a pressure cooker for polymerization reaction under high temperature and pressure to obtain a unique resin cake containing information about the removable denture.

[0030] It should be added that the preparation of gingival gel involves mixing gingival gel with a special monomer liquid at a mass ratio of 1.5 to 2:1. The specific mixing ratio may be adjusted according to different applicable situations, and this application does not limit it here.

[0031] The mixture is transferred to a pressure cooker for polymerization under high temperature and high pressure, specifically: the temperature is 55~60℃ and the pressure is ≥0.3MPa for 30 minutes.

[0032] S104: The unique resin cake containing information about the removable denture is finely processed to obtain a removable denture restoration. The removable denture restoration is then ground and polished to obtain a denture restoration.

[0033] Furthermore, the unique resin biscuit containing the information of the removable denture is further refined. Specifically, the unique resin containing the information of the removable denture is placed on the clamping bracket of the DWX-53D / 53DC and clamped. The second tool path is used to remove the excess gingival adhesive, resulting in the removable denture restoration.

[0034] Remove the removable denture restoration and use a polishing handpiece to remove the support rod. Then, use polishing sandpaper and polishing paste on a polishing machine to polish the denture restoration.

[0035] Example 2: Please see Figure 2 As shown, this embodiment discloses an electronic device, including a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, it implements the digital full-mouth suction denture processing technology provided by the above-described processes.

[0036] Since the electronic device described in this embodiment is the electronic device used to implement the digital full-mouth suction denture processing technology in this application embodiment, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the digital full-mouth suction denture processing technology described in this application embodiment. Therefore, how the electronic device implements the process in this application embodiment will not be described in detail here. Any electronic device used by those skilled in the art to implement the digital full-mouth suction denture processing technology in this application embodiment falls within the scope of protection of this application.

[0037] Example 3: Please see Figure 3As shown, this embodiment discloses a computer-readable storage medium, including a memory, a processor, and a computer program stored on the memory and running on the processor. When the processor executes the computer program, it implements the digital full-mouth suction denture processing technology provided by the above-described processes.

[0038] The above formulas are all dimensionless calculations. The formulas are derived from software simulations based on a large amount of collected data to obtain the most recent real-world results. The preset parameters, weights, and thresholds in the formulas are set by those skilled in the art according to the actual situation.

[0039] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired or wireless network. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0040] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this invention can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different processes to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0041] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing process embodiments, and will not be repeated here.

[0042] In the several embodiments provided by this invention, it should be understood that the disclosed systems, apparatuses, and processes can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only one method, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0043] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0044] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0046] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A digitalized full-mouth absorbent denture manufacturing process, characterized in that, The process includes: S101: Scan the patient's oral cavity to obtain digital oral data, import the digital oral data into CAD software for digital design, and obtain processing model data and corresponding denture tooth particle data; S102: Import the machining model data into the layout software for layout, adjust its position and orientation in the blank, and add support rods to generate the toolpath file; S103: Place the acrylic sheet on the support mold, process the acrylic sheet using the toolpath file to create the grooved guide plate, place the corresponding denture teeth in sequence on the grooved guide plate and perform high-pressure polymerization to obtain a unique resin cake containing removable denture information. S104: The unique resin cake containing information about the removable denture is finely processed to obtain a removable denture restoration. The removable denture restoration is then ground and polished to obtain a denture restoration.

2. The digitalized complete denture fabrication process according to claim 1, characterized in that, The digital design process includes: After the denture teeth are aligned, a personalized tray is made. Once the alignment is complete, a physical personalized tray is printed using a 3D printer. Rubber material is applied to the surface of the physical personalized tray, and it is placed in the patient's mouth for a second impression to obtain the final model data. The final model data is imported into CAD software for the selection and placement of denture particles and the design of the gum liners, resulting in the processing model data and the corresponding denture particles.

3. The digitalized complete denture fabrication process according to claim 1, characterized in that, The process of adjusting its position and orientation in the billet and adding support rods to generate the toolpath file includes: Based on the repaired data, add support rods and check whether there is an edge line at the transition position between each tooth and the gum. If there is no edge line, draw the edge line manually and then generate the toolpath file.

4. The digitalized complete denture fabrication process according to claim 3, characterized in that, The toolpath files include: a first toolpath file for machining the guide plate for placing the tooth grooves of the finished denture and a second toolpath file for machining the removal of excess gum glue from the removable denture.

5. The digitalized complete denture fabrication process according to claim 1, characterized in that, The step of placing the corresponding denture particles sequentially on the grooved guide plate and performing high-pressure polymerization includes: Place the corresponding denture beads into the grooved guide plate one by one according to the tooth number, and check whether the outer arc of each denture bead fits the arc of the grooved guide plate. The gingival adhesive is prepared, and the denture particles are fixed on the grooved guide plate. The gingival adhesive is poured into the mold supporting the grooved guide plate with the denture particles fixed, and then transferred to a pressure cooker for polymerization reaction under high temperature and high pressure to obtain a unique resin cake containing information about the removable denture.

6. The digitalized complete denture fabrication process according to claim 1, characterized in that, The finishing process for the unique resin cake containing information about the removable denture involves: clamping the unique resin cake containing information about the removable denture, removing excess gum glue using a second cutting tool, and obtaining the removable denture restoration.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the digital full-mouth absorbent denture processing technology according to any one of claims 1 to 8.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed, implements the digital full-mouth suction denture processing technology according to any one of claims 1 to 8.

Images