Three-column support false tooth with high stability
The dentures designed with a three-column support structure and biocompatible coating solve the problem of loosening in existing dentures, achieving greater stability and comfort, and reducing the risk of oral injury.
Patent Information
- Application Number
- CN202423076032.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing dentures are prone to loosening during long-term use, which can affect chewing efficiency and potentially damage oral tissues.
A three-post support structure for dentures was designed, including a partial denture sleeve and a denture body. Stability is enhanced by positioning support posts and friction-increasing sleeves, and a biocompatible coating is applied to the surface of the denture body. The structure is combined with threaded rods and sealing gaskets to improve installation stability and protection.
It enhances the stability of denture installation, reduces the risk of dislodgement and displacement, improves chewing efficiency, reduces the incidence of oral diseases, and provides a more comfortable wearing experience.
Smart Images

Figure CN223653964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental prosthesis technology, and in particular to a three-column supported denture with high stability. Background Technology
[0002] Dentures can completely mimic the shape and function of natural teeth through different materials and manufacturing methods, achieving the effects of chewing, biting, and aesthetics. They are mainly used to repair the function of damaged teeth and are also widely used in cosmetic dentistry.
[0003] Existing dentures are prone to loosening during long-term use. This loosening not only affects the patient's chewing efficiency but may also damage oral tissues. Loose dentures can reduce the patient's chewing efficiency, affect the full chewing and digestion of food, and may also lead to abnormal pronunciation, affecting the patient's verbal communication. Utility Model Content
[0004] The technical problem to be solved by this invention is that existing dentures are prone to loosening during long-term use, which not only affects the patient's chewing efficiency but may also damage oral tissues. Therefore, we propose a highly stable three-column supported denture.
[0005] To achieve the above objectives, this application adopts the following technical solution: a highly stable three-column supported denture, including a partial denture sleeve, the top of which has a groove, the denture body is installed inside the groove, the bottom of which has a positioning hole, a positioning support column is fixedly connected to the bottom of the groove cavity, the number of positioning support columns is multiple, the surface of the positioning support column is slidably connected to the surface of the positioning hole, and the bottom of the partial denture sleeve has a circular hole.
[0006] Preferably, a friction-enhancing sleeve is fixedly connected to the surface of the positioning support column, and the surface of the friction-enhancing sleeve abuts against the inner wall of the positioning hole.
[0007] Preferably, a first threaded hole is provided at the bottom of the groove cavity, and a second threaded hole is provided at the bottom of the denture body, with a threaded rod rotatably connected inside the first threaded hole.
[0008] Preferably, a disc is fixedly connected to the bottom of the threaded rod, and a sealing gasket is slidably connected to the surface of the threaded rod, with the bottom of the sealing gasket abutting against the top of the disc.
[0009] Preferably, the surface of the denture body is covered with a biocompatible coating.
[0010] Preferably, the partial denture sleeve is made of polymethyl methacrylate.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] In this invention, when the worker places the denture body into the slot opened at the top of the partial denture sleeve, the three positioning holes opened at the bottom of the denture body can be engaged with the positioning support column set at the bottom of the slot cavity. This design of the positioning support column makes the denture body more stable after installation and reduces the risk of falling off and shifting. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the inside of the slot in this utility model;
[0015] Figure 3 This is a schematic diagram of the bottom structure of the denture of this utility model;
[0016] Figure 4 This is a schematic diagram of the bottom structure of the denture sleeve of this utility model.
[0017] Legend: 1. Partial denture sleeve; 2. Groove; 3. Denture body; 4. Positioning hole; 5. Positioning support post; 6. Friction-enhancing sleeve; 7. First threaded hole; 8. Second threaded hole; 9. Threaded rod; 10. Disc; 11. Round hole; 12. Sealing gasket. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0019] Reference Figure 1 - Figure 3 As shown, this utility model provides a technical solution: a highly stable three-column supported denture, including a partial denture sleeve 1. The top of the partial denture sleeve 1 has a groove 2, and the denture body 3 is installed inside the groove 2. The bottom of the denture body 3 has a positioning hole 4. The bottom of the inner cavity of the groove 2 is fixedly connected to a positioning support column 5. There are multiple positioning support columns 5. The surface of the positioning support column 5 is slidably connected to the surface of the positioning hole 4. The bottom of the partial denture sleeve 1 has a round hole 11. When the worker places the denture body 3 into the groove 2 at the top of the partial denture sleeve 1, the three positioning holes 4 at the bottom of the denture body 3 can be engaged with the positioning support columns 5 at the bottom of the inner cavity of the groove 2. This design of the positioning support column 5 makes the denture body 3 more stable after installation and reduces the risk of falling off and shifting.
[0020] Reference Figure 2 As shown in this embodiment: a friction-enhancing sleeve 6 is fixedly connected to the surface of the positioning support column 5. The surface of the friction-enhancing sleeve 6 abuts against the inner wall of the positioning hole 4. The material of the friction-enhancing sleeve 6 is selected to be a material with a high coefficient of friction, such as polytetrafluoroethylene, to ensure that sufficient friction is provided between the denture body 3 and the partial denture sleeve 1, thereby further enhancing the stability of the denture.
[0021] Reference Figure 2 - Figure 4 As shown in this embodiment: a first threaded hole 7 is provided at the bottom of the inner cavity of the slot 2, and a second threaded hole 8 is provided at the bottom of the denture body 3. A threaded rod 9 is rotatably connected inside the first threaded hole 7. The operator can adjust the extension length of the threaded rod 9 by rotating and adjusting the threaded rod 9, thereby realizing the installation and disassembly between the denture body 3 and the partial denture sleeve 1.
[0022] Reference Figure 4 As shown in this embodiment: a disc 10 is fixedly connected to the bottom of the threaded rod 9, and a sealing gasket 12 is slidably connected to the surface of the threaded rod 9. The bottom of the sealing gasket 12 abuts against the top of the disc 10. A sealing gasket 12 is provided between the outer edge of the disc 10 and the inner wall of the groove 2 to prevent liquid in the oral cavity from entering the internal structure of the denture, thereby protecting the mechanical parts of the denture from corrosion. In addition, the sealing gasket 12 can also prevent food residue from entering to a certain extent, reducing the difficulty of cleaning.
[0023] Reference Figure 1 As shown in this embodiment, the surface of the denture body 3 is covered with a biocompatible coating. The biocompatible coating can not only improve the compatibility between the denture body 3 and oral tissues and reduce the discomfort of the wearer, but also effectively prevent bacterial adhesion and growth, thereby reducing the incidence of oral diseases. In addition, the coating also has a certain degree of wear resistance, which extends the service life of the denture body 3.
[0024] Reference Figure 2 As shown in this embodiment: the partial denture 1 is made of polymethyl methacrylate (PMMA). This material has good biocompatibility and can fit well with the soft and hard tissues in the oral cavity, thus providing a more comfortable wearing experience. In addition, PMMA also has high strength and toughness, can withstand the chewing pressure in daily use, and is not easy to break or deform, ensuring the long-term stability and durability of the partial denture 1.
[0025] Working principle: When the operator places the denture body 3 into the slot 2 at the top of the partial denture sleeve 1, the three positioning holes 4 at the bottom of the denture body 3 can be engaged with the positioning support post 5 at the bottom of the inner cavity of the slot 2. This design of the positioning support post 5 makes the denture body 3 more stable after installation, reducing the risk of dislodgement and displacement. The friction-enhancing sleeve 6 is made of a material with a high coefficient of friction, such as polytetrafluoroethylene, to ensure sufficient friction between the denture body 3 and the partial denture sleeve 1, thereby further enhancing the stability of the denture. The operator can adjust the extension length of the threaded rod 9 by rotating it, thereby realizing the installation and removal of the denture body 3 and the partial denture sleeve 1. A sealing gasket 12 is provided between the outer edge of the disc 10 and the inner wall of the slot 2 to prevent oral fluids from entering the denture. The internal structure of the denture protects the mechanical components from corrosion. Furthermore, the sealing gasket 12 helps prevent food debris from entering, reducing cleaning difficulty. The biocompatible coating not only improves the compatibility between the denture body 3 and oral tissues, reducing discomfort for the wearer, but also effectively prevents bacterial adhesion and growth, thus reducing the incidence of oral diseases. In addition, the coating has a certain degree of wear resistance, extending the lifespan of the denture body 3. The partial denture sleeve 1 is made of polymethyl methacrylate (PMMA), a material with good biocompatibility that conforms well to the soft and hard tissues in the oral cavity, providing a more comfortable wearing experience. Furthermore, PMMA has high strength and toughness, able to withstand the chewing pressure of daily use, and is not easily broken or deformed, ensuring the long-term stability and durability of the partial denture sleeve 1.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A three-column supported denture with high stability, comprising a partial denture sleeve (1), characterized in that: The top of the local denture sleeve (1) is provided with a notch (2), the inside of the notch (2) is provided with a denture body (3), the bottom of the denture body (3) is provided with a positioning hole (4), the bottom of the inner cavity of the notch (2) is fixedly connected with a positioning support column (5), the number of the positioning support column (5) is multiple, the surface of the positioning support column (5) is slidably connected with the surface of the positioning hole (4), and the bottom of the local denture sleeve (1) is provided with a round hole (11).
2. The three-column support denture with high stability according to claim 1, characterized in that: The surface of the positioning support column (5) is fixedly connected with a friction-increasing sleeve (6), and the surface of the friction-increasing sleeve (6) abuts against the inner wall of the positioning hole (4).
3. The three-column support denture with high stability according to claim 1, characterized in that: The bottom of the inner cavity of the notch (2) is provided with a first threaded hole (7), the bottom of the denture body (3) is provided with a second threaded hole (8), and the inside of the first threaded hole (7) is rotatably connected with a threaded rod (9).
4. The three-column denture of claim 3, wherein: The bottom of the threaded rod (9) is fixedly connected with a disc (10), the surface of the threaded rod (9) is slidably connected with a sealing gasket (12), and the bottom of the sealing gasket (12) abuts against the top of the disc (10).
5. The three-column denture of claim 1, wherein: the three-column denture has high stability. The surface of the denture body (3) is covered with a biocompatible coating.
6. The three-column denture of claim 1, wherein: The material of the local denture sleeve (1) is polymethyl methacrylate material.