Magnetic stable denture base

CN224911349UActive Publication Date: 2026-10-30FOSHAN BUDDHA CROWN DENTURE CO LTD
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Patent Information

Application Number
CN202522666757.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-16
Publication Date
2026-10-30
Estimated Expiration
2035-12-16

AI Technical Summary

Technical Problem

[0005]针对现有技术中,活动义齿存在的佩戴稳定性不足、易在口腔活动中发生松动脱落,以及部分磁吸式义齿因磁力过强导致拆卸困难的问题,本实用新型旨在提供一种结构经过改良的、能够有效解决上述问题的一种磁吸稳固型义齿底座

Benefits of technology

1、本实用新型,通过在义齿内部设置包含磁吸卡环和弹簧的弹性组件,并使其与固定桩上的固定组件形成磁吸、机械卡合与弹性预紧的复合式连接,解决了现有活动义齿佩戴不稳、易松动脱落的问题,达到了极致稳固、安全可靠。

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Abstract

The utility model discloses a kind of magnetic attraction stable type false tooth base, belong to oral cavity prosthetic technical field, including: false tooth, the fixed pile for implanting gum, the fixed assembly fixed in the top of fixed pile and the elastic assembly integrated in the inside of false tooth, fixed assembly includes slot seat one, inside is equipped with slot two and protruding clamping block, elastic assembly includes the magnetic attraction seat of setting in the outer surface of slot seat one, and the magnetic attraction block and clamping block two are arranged in the slot three in the inside of magnetic attraction seat.The utility model is combined with the composite fixed structure of negative pressure adsorption, magnetic attraction, multi-point mechanical clamping and elastic pre-tightening, greatly improve the stability and security of false tooth wearing;Meanwhile, the boosting effect of spring makes false tooth disassembly process more relaxed and convenient, and modular design also facilitates subsequent maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of oral restoration technology, and in particular to a magnetically stabilized denture base. Background Technology

[0002] For patients with partial or complete tooth loss, removable dentures are a common and important restorative method. They can restore chewing function, improve pronunciation, and maintain facial aesthetics. Traditional removable dentures mainly rely on the fit between the denture base and the alveolar ridge and mucosa, using the suction force generated by the marginal seal and the surface tension of saliva to achieve retention, or using metal clasps to hook onto adjacent healthy teeth to increase stability. Dentures that rely solely on suction have limited retention, especially in patients with poor alveolar ridge conditions or severe atrophy. During chewing, laughing, or speaking, dentures are prone to shaking, tilting, or even falling out, seriously affecting wearing comfort and the patient's social confidence.

[0003] To improve denture stability, the industry has developed various precision accessories, including magnetic retention devices using magnetic materials. These devices typically involve implanting an implant in the patient's gums and placing a pair of magnets that attract each other at the tip of the implant and inside the denture base. Compared to traditional methods, magnetic attraction does significantly enhance retention. However, new problems arise. To ensure sufficient retention, the magnets usually require strong magnetic force. This means that patients must overcome the strong magnetic force when removing their dentures for cleaning each day, making the process very strenuous, especially for elderly users or those with insufficient hand strength. Furthermore, magnetic attraction alone is insufficient to completely resist the complex lateral shear forces generated during chewing, and slight displacement can still occur.

[0004] Therefore, this utility model proposes a magnetically attached and stable denture base to overcome the shortcomings of the prior art. Summary of the Invention

[0005] In view of the problems of insufficient wearing stability, easy loosening and falling out during oral activities, and difficulty in disassembling some magnetic dentures due to excessive magnetic force in the existing technology, this utility model aims to provide a magnetically stable denture base with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a magnetically stabilized denture base, including a denture, a fixing post, an adsorption pad, and a fixing component; as well as an elastic component integrated inside the denture.

[0007] The fixing component has a card slot seat 1 made of magnetic material, a card slot 2 recessed inside the card slot seat 1, and a protruding card block fixed on the inner wall of the card slot 2.

[0008] Furthermore, the elastic component includes a magnetic base sleeved on the outer surface of the slot seat 1. The magnetic base has a slot 3 inside, and a magnetic block is disposed within the slot 3. A second locking block is fixedly connected to the magnetic block. During denture installation, the magnetic base and the slot seat 1 attract each other magnetically and engage. Simultaneously, the second locking block engages within the slot 2, and the magnetic plate fixed to the second locking block magnetically attracts the raised locking block, thus forming a stable connection combining magnetic attraction and mechanical engagement.

[0009] Preferably, a fixing block is fixedly connected to one inner wall of the slot three of the elastic component, and a limit rod is threadedly connected to the fixing block. A sliding sleeve is also provided in the slot three, and the sliding sleeve is slidably sleeved on the outer surface of the limit rod to provide precise linear motion guidance for the internal moving parts.

[0010] Preferably, a magnetic retaining ring is fixedly connected to the outer surface of the sliding sleeve. During installation, the magnetic retaining ring surrounds the outer periphery of the retaining groove and magnetically attracts it. By increasing the pre-tightened magnetic attraction and engagement points, the overall stability of the fixation is further improved.

[0011] Preferably, a spring is provided between the magnetic clasp and the magnetic block, with both ends of the spring abutting against the magnetic clasp and the magnetic block respectively. The spring not only provides continuous elastic support in the installed state but also releases energy during disassembly, acting as a propulsive force.

[0012] Preferably, the end of the limiting rod away from the fixing block is fixed to the inner wall of the magnetic base by an installation sleeve. This method of fixing at both ends makes the limiting rod structure more stable and ensures the smooth movement of the sliding component.

[0013] Preferably, the end of the limiting rod near the mounting sleeve has a disassembly groove. The disassembly groove provides a convenient interface for disassembling and replacing the internal components of the limiting rod and magnetic retaining ring using external tools.

[0014] Preferably, a movable groove corresponding to the sliding sleeve is formed on the inner wall of the slot three along the length direction of the limiting rod. A portion of the sliding sleeve slides within the movable groove. This structure effectively prevents unnecessary rotation of the sliding sleeve during movement, ensuring the accuracy of its movement.

[0015] This utility model has the following beneficial effects: 1. This utility model solves the problems of unstable wearing and easy loosening and falling off of existing removable dentures by setting an elastic component containing a magnetic clasp and a spring inside the denture and forming a composite connection with the fixing component on the fixing post through magnetic attraction, mechanical engagement and elastic pre-tightening, thus achieving ultimate stability and safety.

[0016] 2. This utility model, through the spring set between the magnetic clasp and the magnetic block, can store elastic potential energy after the denture is installed, and can provide a pushing force during disassembly, thus solving the problem of difficult disassembly of some magnetic dentures caused by excessive magnetic force, achieving convenient disassembly and assembly and labor-saving use.

[0017] 3. This utility model, by opening a disassembly and assembly groove on the limiting rod, realizes the modular design and convenient disassembly and assembly of the internal components of the magnetic clasp, solving the problem that traditional denture connectors are difficult to repair or replace after damage, thus achieving convenient daily maintenance and extending the overall service life. Attached Figure Description

[0018] Figure 1 This is an axial perspective view of a magnetically secured denture base proposed in this utility model; Figure 2 This is a schematic diagram illustrating the fixing post structure of a magnetically attached and stable denture base proposed in this utility model. Figure 3 This is a structural diagram illustrating the fixing component of a magnetically attached and stable denture base proposed in this utility model. Figure 4 This is a diagram illustrating the adsorption pad structure of a magnetically stabilized denture base proposed in this utility model. Figure 5 This is a cross-sectional view of the elastic component of a magnetically attached and stable denture base proposed in this utility model. Figure 6 This is a partial structural diagram of the elastic component of a magnetically attached and stable denture base proposed in this utility model.

[0019] Legend: 1. Denture; 2. Fixing post; 3. Adsorption pad; 4. Fixing component; 41. Slot seat one; 42. Slot two; 43. Protruding retaining block; 5. Elastic component; 51. Magnetic base; 52. Slot three; 53. Magnetic block; 54. Retaining block two; 55. Moving groove; 56. Fixing block; 57. Limiting rod; 58. Sliding sleeve; 59. Magnetic retaining ring; 510. Installation sleeve; 511. Disassembly groove; 512. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0021] Please refer to Figures 1 to 6 This utility model provides a magnetically stabilized denture base, which includes a denture 1 and a fixing post 2 for implantation into the gum. The bottom of the denture 1 is integrally formed with a flexible adsorption pad 3, which is used to form a negative pressure adsorption by adhering to the gingival surface. The top of the fixing post 2 is fixedly connected to a fixing component 4, which serves as a base connected to the denture 1. The denture 1 has a cavity inside, and an elastic component 5 adapted to the fixing component 4 is installed in the cavity. The precise fit between the elastic component 5 and the fixing component 4 realizes the composite fixation and convenient disassembly function of this utility model.

[0022] Please refer to Figure 3 , Figure 4 and Figure 5 The fixing component 4 includes a slot seat 41 made of a magnetically pleasing material. Its interior has a recessed slot 42 for mechanical locking. A protruding locking block 43 is fixed to the inner wall of the slot 42, forming a magnetic engagement with the elastic component 5. The elastic component 5 includes a magnetic base 51 fitted onto the outer surface of the slot seat 41. A slot 52 is formed inside the magnetic base 51, and a magnetic block 53 is disposed inside the slot 52. A locking block 54 is fixedly connected to the magnetic block 53. In the assembled state, the magnetic base 51 is fitted onto the outer surface of the slot seat 41, while the locking block 54 precisely engages with the slot 42 of the fixing component 4. The magnetic piece fixed to the locking block 54 magnetically attracts the protruding locking block 43. This magnetic attraction of the magnetic block 53 and the slot seat, along with the mechanical engagement structure of the locking block and slot, ensures a secure locking after rapid positioning between the denture 1 and the fixing post 2.

[0023] Please refer to Figure 6 A fixing block 56 is fixedly connected to the inner wall of one side of the slot 3 52. A limit rod 57 is threadedly connected to the fixing block 56. A sliding sleeve 58 is also provided in the slot 3 52. The sliding sleeve 58 is slidably sleeved on the outer surface of the limit rod 57. A magnetic absorbing ring 59 is fixedly connected to the outer surface of the sliding sleeve 58. When installed, the magnetic absorbing ring 59 surrounds the outer periphery of the slot seat 1 41 and magnetically attracts it, providing additional fixing force. A spring 512 is provided between the magnetic absorbing ring 59 and the magnetic block 53. The two ends of the spring 512 abut against the magnetic absorbing ring 59 and the magnetic block 53 respectively, providing a continuous elastic force for the entire connection structure.

[0024] Please refer to Figure 6 The end of the limiting rod 57 away from the fixing block 56 is fixed to the inner wall of the magnetic base 51 by the mounting sleeve 510. This method of fixing at both ends enhances the structural stability of the limiting rod 57. A disassembly groove 511 is provided at the end of the limiting rod 57 near the mounting sleeve 510. The disassembly groove 511 allows external tools to be inserted and rotated to facilitate the disassembly of the limiting rod 57 and even the magnetic clasp 59.

[0025] Working principle: When in use, the two fixing posts 2 are fixed to the human gum. At this time, the fixing posts 2 are integrated with the fixing components 4 that are compatible with the elastic components 5 of the denture 1. The fixing components 4 and the elastic components 5 can achieve the effect of convenient magnetic installation of the denture 1. The adsorption pad 3 adheres to the surface of the gums. Through the properties of its own flexible material, it creates negative pressure with the gums, thereby firmly fixing the denture 1 to the post 2. Five magnetic suction seats 51 of the elastic component are fitted onto the outer surface of the card slot seat 41. Then, the denture 1 is pressed. At this time, the second card block 54 fixed at the magnetic suction block 53 is inserted into the card slot 42 inside the card slot seat 41. The magnetic suction block 53 and the card slot seat 41 form a magnetic suction group. The card slot seat 41 can be made of a magnetic material. The magnetic suction piece fixed at the second card block 54 is magnetically fixed to the protruding card block 43 in the card slot 42, thereby forming a magnetic fixation effect between the denture 1 and the fixed post 2. When the magnetic base 51 is engaged with the outer surface of the slot base 41, the magnetic ring 59 inside the magnetic base 51 is squeezed by the slot base 41 and compressed by the spring 512, moving towards the magnetic block 53. The sliding sleeves 58 symmetrically mounted on the outer surface of the magnetic ring 59 are synchronously slidably connected to the outer surface of the two limiting rods 57. The two limiting rods 57 are fixed to one side of the slot 52 inside the magnetic base 51 by the fixing block 56, and the ends of the two limiting rods 57 away from the fixing block 56 are fixed to the inner surface of the magnetic base 51 by the mounting sleeve 510. The end of the limiting rod 57 near the mounting sleeve 510 is provided with a disassembly groove 511, which facilitates the disassembly and replacement of the magnetic ring 59 by inserting an external mechanical structure into the disassembly groove 511 for rotation. The end of the limiting rod 57 at the same end that is close to the fixing block 56 is threaded to the inner surface of the fixing block 56. The inside of the slot 3 52 is provided with a corresponding moving groove 55 on the side close to the two limiting rods 57, so that the sliding sleeve 58 can slide on the outer surface of the limiting rod 57. During the installation of denture 1, the magnetic clasp 59 first magnetically attracts and engages with the slot seat 41, thereby further improving the stability of the fixation. After denture 1 is fixedly installed, spring 512 can continuously provide elastic support to the fixing component 4, making it easy to pull denture 1 out from the upper part of the outer surface of the fixing component 4 when disassembling denture 1.

[0026] This invention ensures the ultimate stability of the denture 1 through a triple mechanism of magnetic attraction, mechanical engagement, and negative pressure adsorption. First, the adsorption pad 3 forms negative pressure with the gums, providing basic fixation force. Second, the strong magnetic attraction between the magnetic block 53 and the card slot 41 enables rapid positioning. Finally, the precise engagement of several card blocks with the card slot and the pre-engagement of the magnetic clasp 59 form a multi-point, multi-layered mechanical locking. This composite fixation structure effectively prevents the denture 1 from shifting or falling off during chewing and speaking activities, greatly improving the reliability and safety of wearing it.

[0027] Its device optimizes the disassembly, assembly, and maintenance process of denture 1; during installation, it can be completed by magnetic guidance and pressing, which is simple and quick to operate; during disassembly, the built-in spring 512 provides elastic thrust, which allows denture 1 to be easily detached, avoiding the problem of difficult disassembly of traditional clasp-type denture 1; in addition, the magnetic clasp 59 adopts a modular design and is replaceable through the disassembly slot 511, which facilitates daily cleaning, maintenance, or replacement by users or doctors, and extends the service life of the entire denture 1 system.

Claims

1. A magnetically stabilized denture base, comprising a denture (1) and a fixing post (2) for implantation into the dental arch, wherein an adsorption pad (3) is provided at the bottom of the denture (1), and a fixing component (4) is fixedly connected to the top of the fixing post (2), characterized in that, The denture (1) has an internal cavity, and an elastic component (5) adapted to the fixing component (4) is installed inside the cavity. The fixing component (4) includes a first slot seat (41), a second slot (42) is recessed inside the first slot seat (41), and a protruding locking block (43) is fixed on the inner wall of the second slot (42). The elastic component (5) includes a magnetic base (51), which is sleeved on the outer surface of the card slot base (41). The magnetic base (51) has a card slot (52) inside, and a magnetic block (53) is provided in the card slot (52). A card block (54) is fixedly connected to the magnetic block (53), and the card block (54) is engaged in the card slot (42).

2. The magnetically secured denture base according to claim 1, characterized in that, A fixing block (56) is fixedly connected to one side of the inner wall of the slot three (52). A limit rod (57) is threadedly connected to the fixing block (56). A sliding sleeve (58) is also provided in the slot three (52). The sliding sleeve (58) is slidably sleeved on the outer surface of the limit rod (57).

3. The magnetically secured denture base according to claim 2, characterized in that, A magnetic clasp (59) is fixedly connected to the outer surface of the sliding sleeve (58). The magnetic clasp (59) surrounds the outer periphery of the slot seat (41) and magnetically attracts it.

4. The magnetically secured denture base according to claim 3, characterized in that, A spring (512) is provided between the magnetic clasp (59) and the magnetic block (53), with the two ends of the spring (512) abutting against the magnetic clasp (59) and the magnetic block (53) respectively.

5. A magnetically secured denture base according to claim 2, characterized in that, The end of the limiting rod (57) away from the fixing block (56) is fixed to the inner wall of the magnetic base (51) by the mounting sleeve (510).

6. A magnetically secured denture base according to claim 5, characterized in that, The limiting rod (57) has a disassembly groove (511) at one end near the mounting sleeve (510).

7. A magnetically secured denture base according to claim 2, characterized in that, On the inner wall of the slot three (52), a moving groove (55) corresponding to the sliding sleeve (58) is provided along the length direction of the limiting rod (57), and a part of the sliding sleeve (58) is embedded in the moving groove (55) and slides.

8. A magnetically secured denture base according to claim 1, characterized in that, The card slot seat one (41) is made of a magnetically adsorbable material, and the protruding card block (43) and the card block two (54) are fixedly magnetically adsorbed.