False tooth base convenient for disassembly and assembly of false tooth
By designing a matching structure of positioning grooves, positioning protrusions, connecting protrusions, and fixing screws on the denture base, the problem of difficult denture disassembly is solved, enabling rapid disassembly and assembly, protecting the integrity of the denture base, and reducing repair costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING JIAYING DENTURE MFG CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-24
AI Technical Summary
Existing dentures are difficult to disassemble quickly during replacement, making it difficult for medical staff to operate and the denture base structure is easily damaged.
The design incorporates a positioning groove, positioning protrusion, connecting protrusion, threaded groove, and fixing screws to achieve quick positioning and disassembly of the carrier plate and the base body through threaded connection, avoiding damage to the base caused by forced separation.
It enables quick assembly and disassembly of dentures, reduces the operational difficulty for medical staff, protects the integrity of the denture base, and reduces restoration costs.
Smart Images

Figure CN224155800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of denture bases, specifically a denture base that facilitates denture assembly and disassembly. Background Technology
[0002] In the field of dental prosthodontics, the denture base is a key component that connects artificial teeth to oral tissues. It is used to support artificial teeth and other denture components. The denture base is usually made of plastic, metal, or a combination of both, and has a certain degree of elasticity and toughness to adapt to the dynamic changes in the wearer's oral cavity.
[0003] Currently, dentures are typically attached to the denture base using adhesive bonding. However, if a denture is damaged during use and needs replacement, the lack of a reasonable disassembly structure design often requires medical staff to expend considerable effort and time to separate the denture from the base. This process can easily damage the base itself, leading to chipping, breakage, or other issues that affect its reusability. Therefore, those skilled in the art have developed a denture base that facilitates denture assembly and disassembly to address the problems mentioned in the background section. Utility Model Content
[0004] The purpose of this invention is to provide a denture base that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A denture base that facilitates denture assembly and disassembly includes a base body. The upper surface of the base body has two sets of positioning grooves. A carrier plate is provided above the base body. The bottom surface of the carrier plate has two sets of positioning protrusions. A set of denture components is fixedly connected to the upper surface of the carrier plate. The outer surface of the carrier plate has two connecting protrusions. The outer surface of both connecting protrusions has threaded grooves. The upper surface of the base body has two connecting grooves. The outer surface of both connecting protrusions is provided with fixing screws.
[0007] As a further improvement of this utility model: two through holes are formed on the outer surface of the base body, the diameter of the two fixing screws is smaller than the inner diameter of the through holes, and the outer surface of the fixing screws is adapted to the inner wall thread of the threaded groove.
[0008] As a further improvement of this utility model: the two sets of positioning grooves are respectively located below the two sets of positioning protrusions, and the inner wall of the positioning groove is adapted to the inner wall of the positioning protrusion.
[0009] As a further improvement of this utility model: the sides of each of the denture components that are close to each other are in contact, and each of the connecting grooves has a chamfered structure at the opening.
[0010] As a further improvement of this utility model: the bottom surface of the base body is provided with a base groove, and the inner wall of the base groove is provided with a removable anti-wear pad.
[0011] As a further embodiment of this utility model: the carrier plate is made of polyetheretherketone material, and the base body is made of polymethyl methacrylate material.
[0012] As a further improvement of this utility model, a rotating groove is provided on the outer surface of one end of the fixing screw.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This easy-to-assemble and disassemble denture base, through the coordinated design of positioning protrusions and positioning grooves, connecting protrusions and connecting grooves, and fixing screws and threaded grooves, allows for quick and accurate positioning and fixation of the carrier plate and denture components during installation. Disassembly only requires tightening the fixing screws to easily separate the carrier plate from the base body, shortening denture assembly and disassembly time, reducing the operational difficulty for medical staff, and eliminating the need for forceful manipulation of the base during disassembly. This avoids damage such as porcelain chipping or breakage caused by forcibly separating the denture in traditional methods, ensuring the integrity of the base, facilitating its reuse, and reducing the patient's restoration costs. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of a denture base that facilitates denture assembly and disassembly;
[0016] Figure 2 A three-dimensional structural diagram of a denture base that facilitates denture assembly and disassembly.
[0017] Figure 3 A three-dimensional structural diagram of a denture base plate that facilitates denture assembly and disassembly, viewed from below.
[0018] Figure 4 This is a sectional view of the main body of a denture base, which is designed for easy assembly and disassembly.
[0019] In the diagram: 1. Base body; 2. Positioning groove; 3. Carrier plate; 4. Denture component; 5. Connecting protrusion; 6. Positioning protrusion; 7. Fixing screw; 8. Through hole; 9. Connecting groove; 10. Rotating groove; 11. Threaded groove; 12. Base groove. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] Please see Figures 1-4 In this embodiment of the present invention, a denture base that facilitates denture assembly and disassembly includes a base body 1. Two sets of positioning grooves 2 are provided on the upper surface of the base body 1. A carrier plate 3 is provided above the base body 1. Two sets of positioning protrusions 6 are provided on the bottom surface of the carrier plate 3. A set of denture components 4 are fixedly connected to the upper surface of the carrier plate 3. Two connecting protrusions 5 are provided on the outer surface of the carrier plate 3. Threaded grooves 11 are provided on the outer surface of each of the two connecting protrusions 5. Two connecting grooves 9 are provided on the upper surface of the base body 1. Fixing screws 7 are provided on the outer surface of each of the two connecting protrusions 5. The positioning grooves 2 and positioning protrusions 6 cooperate to achieve initial positioning, enabling the carrier plate 3 to be quickly and accurately placed in the predetermined position of the base body 1, ensuring the accuracy of the denture installation position. Furthermore, the connecting protrusions 5, threaded grooves 11, connecting grooves 9, and fixing screws 7 together form a detachable connection structure, facilitating denture replacement and maintenance.
[0022] As a further improvement of this utility model: two through holes 8 are formed on the outer surface of the base body 1. The diameters of the two fixing screws 7 are both smaller than the inner diameter of the through holes 8, and the outer surfaces of the fixing screws 7 are threaded to fit the inner wall of the threaded groove 11. Two sets of positioning grooves 2 are respectively located below two sets of positioning protrusions 6, and the inner walls of the positioning grooves 2 are adapted to the inner walls of the positioning protrusions 6. The sides of each denture 4 that are close to each other are in contact. A chamfer structure is provided at the opening of each connecting groove 9. The through holes 8 facilitate the installation and removal of the fixing screws 7. The system provides an operating channel, allowing medical staff to use screwdrivers and other tools to tighten the fixing screws 7 through the through hole 8, facilitating the quick and easy connection and separation of the carrier plate 3 and the base body 1. In addition, the matching of the positioning groove 2 and the positioning protrusion 6 further enhances the accuracy and stability of the positioning of the carrier plate 3 and the base body 1, preventing the carrier plate 3 from shifting or shaking during installation. The chamfered structure of the groove opening of the connecting groove 9 acts as a guide, allowing the connecting protrusion 5 of the carrier plate 3 to be inserted into the connecting groove 9 more smoothly, reducing installation difficulty and improving installation efficiency.
[0023] As a further improvement of this utility model: the bottom surface of the base body 1 is provided with a base groove 12, and the inner wall of the base groove 12 is provided with a removable anti-wear pad. The carrier plate 3 is made of polyetheretherketone material, and the base body 1 is made of polymethyl methacrylate material. A rotating groove 10 is provided on the outer surface of one end of the fixing screw 7. It can be installed in the oral cavity through the base groove 12. The anti-wear pad is made of medical-grade soft rubber material, which can effectively reduce the friction and pressure between the base and the oral mucosa and protect the patient's oral mucosa. The carrier plate 3 is made of polyetheretherketone material, which has high strength, high toughness and good biocompatibility. It can withstand various forces during chewing and ensure the stability of the denture structure. The base body 1 is made of polymethyl methacrylate material, which has good biocompatibility and aesthetics and is suitable as a base material that comes into direct contact with oral tissues. The rotating groove 10 can provide a point of force for tools such as screwdrivers, making it convenient for medical staff to tighten the fixing screw 7.
[0024] The working principle of this utility model is as follows: During installation, first align the two sets of positioning protrusions 6 on the bottom surface of the carrier plate 3 with the two sets of positioning grooves 2 on the top of the base body 1, and insert the positioning protrusions 6 into the interior of the positioning grooves 2. At the same time, the two connecting protrusions 5 on the surface of the carrier plate 3 will be inserted into the interior of the connecting grooves 9 on the base body 1. After the connecting protrusions 5 are inserted into place, use a screwdriver or other tools to rotate the groove 10 and turn the fixing screws 7 to make the fixing screws 7 threadedly connected with the threaded grooves 11 on the outer surface of the connecting protrusions 5 until they are tightened. Then, the carrier plate 3 and the base body 1 are firmly connected. At this time, the denture 4 on the carrier plate 3 is installed on the top of the base body 1.
[0025] When the denture component 4 is damaged and needs to be replaced, use a screwdriver or other tools to rotate the groove 10 and turn the fixing screw 7 in the opposite direction to separate the fixing screw 7 from the threaded groove 11. After separating the fixing screw 7, the carrier plate 3 can be easily removed from the base body 1, and then the denture component 4 on the carrier plate 3 can be replaced.
[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A denture base facilitating the removal of a denture, comprising a base body (1), characterized in that The upper surface of the base body (1) is provided with two sets of positioning grooves (2), the upper surface of the base body (1) is provided with a carrier plate (3), the bottom surface of the carrier plate (3) is provided with two sets of positioning protrusions (6), the upper surface of the carrier plate (3) is fixedly connected with a set of denture parts (4), the outer surface of the carrier plate (3) is provided with two connecting protrusions (5), the outer surface of the two connecting protrusions (5) is provided with threaded grooves (11), the upper surface of the base body (1) is provided with two connecting grooves (9), and the outer surface of the two connecting protrusions (5) is provided with fixing screws (7).
2. The denture base of claim 1, wherein, The outer surface of the base body (1) has two through holes (8), the diameter of the two fixing screws (7) is smaller than the inner diameter of the through holes (8), and the outer surface of the fixing screws (7) is adapted to the inner wall thread of the threaded groove (11).
3. The denture base of claim 1, wherein, The two sets of positioning grooves (2) are located below the two sets of positioning protrusions (6), and the inner wall of the positioning groove (2) is adapted to the inner wall of the positioning protrusion (6).
4. The denture base of claim 1, wherein, Each of the denture pieces (4) has one side that is close to the other in contact, and each of the connecting grooves (9) has a chamfered structure at the opening.
5. The denture of claim 1, wherein, The base body (1) has a base groove (12) on its bottom surface, and the inner wall of the base groove (12) is provided with a removable anti-wear pad.
6. The denture of claim 1, wherein, The carrier plate (3) is made of polyetheretherketone material, and the base body (1) is made of polymethyl methacrylate material.
7. The denture of claim 1, wherein, A rotating groove (10) is provided on the outer surface of one end of the fixing screw (7).