A hookless removable denture

Abstract

This utility model relates to the field of oral medical device technology and discloses a hookless removable denture, including an alveolar block and an implant. A crown fixation part is mounted on the alveolar block via a connecting assembly. A fixation assembly is mounted in the middle of the implant. The connecting assembly includes a screw, a nut fixedly connected to the top of the screw, and a latch on the bottom of the alveolar block. The nut engages with the latch. Multiple inserts are provided in the middle of the crown fixation part. In this utility model, the combination of the screw and nut in the connecting assembly, the engagement of the nut with the latch at the bottom of the alveolar block, and the threaded connection of the screw with the threaded opening in the middle of the crown fixation part create a double fixation effect. Simultaneously, the engagement of the inserts of the crown fixation part with the slot at the bottom of the alveolar block further enhances the connection strength, ensuring the crown fixation part is firmly attached to the alveolar block without loosening.

Description

Technical Field

[0001] This utility model relates to the field of oral medical device technology, and in particular to a hookless removable denture. Background Technology

[0002] In the field of dental restoration, removable dentures are a common way to restore missing teeth. By combining artificial crowns with a base, they replace missing teeth to perform functions such as chewing and speaking, providing patients with a solution to restore oral function and aesthetics. Removable dentures have become an important choice for many patients with missing teeth due to their wide range of applications and removable characteristics. Hookless removable dentures, in particular, are gradually gaining market attention due to their advantages such as aesthetics and comfort.

[0003] Existing removable denture devices mainly consist of a crown, a base, and a retention device. Traditional removable dentures with hooks achieve retention by hooking metal clasps onto adjacent teeth. The clasps use the friction generated by elastic deformation to fix the denture in the oral cavity. The base fits against the alveolar mucosa to distribute chewing forces. Hookless removable dentures use precision attachment technology, such as plugs, plug channels, and magnetic attachments, to connect the denture to the remaining natural teeth or implants through mechanical interlocking or magnetic adsorption, achieving stable retention.

[0004] However, existing removable dentures have significant limitations in their fixation methods. Traditional hook-type dentures' clasps exert lateral forces on adjacent teeth over time, increasing the risk of loosening and displacement. Furthermore, exposed metal clasps affect aesthetics. While the precision attachments of hookless dentures address some aesthetic issues, the anchor and anchor channel structures require extremely high manufacturing precision; even minor errors can lead to insufficient retention. Magnetic attachments suffer from magnetic attenuation and food debris residue easily remains in cleaning gaps. In addition, existing dentures often employ a single fixation method, making it difficult to simultaneously meet the requirements of stability, comfort, and convenience. A more optimized structural design improves denture performance. Therefore, this hookless removable denture is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hookless removable denture, which aims to improve the problem of exposed metal clasps affecting aesthetics in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hookless removable denture includes an alveolar block and an implant, wherein a crown fixation part is installed on the alveolar block via a connecting component, and a fixation component is installed in the middle of the implant;

[0008] The connecting assembly includes a screw, a nut is fixedly connected to the top of the screw, and a latch is provided at the bottom of the toothed block, with the nut engaging with the latch.

[0009] As a further description of the above technical solution:

[0010] The crown fixing part is provided with multiple inserts in the middle, and the bottom of the alveolar block is provided with multiple slots, and the multiple inserts are engaged with the multiple slots;

[0011] As a further description of the above technical solution:

[0012] The connecting assembly also includes a threaded opening, which is located in the middle of the crown fixing part, and the screw is threadedly connected to the threaded opening;

[0013] As a further description of the above technical solution:

[0014] The fixing component includes a screw, and a nut is fixedly connected to the top of the screw.

[0015] As a further description of the above technical solution:

[0016] The bottom of the crown fixing part is provided with a second locking slot, and the second nut is engaged with the second locking slot;

[0017] As a further description of the above technical solution:

[0018] The fixing component also includes a threaded connection groove, which is formed in the middle of the implant, and the screw two is threadedly connected to the threaded connection groove.

[0019] As a further description of the above technical solution:

[0020] The implant has a placement groove in the middle, and the crown fixing part contacts the placement groove;

[0021] As a further description of the above technical solution:

[0022] A sealing gasket is provided at the bottom of the alveolar block, a second glue injection groove is provided in the middle of the alveolar block, and a first glue injection groove is provided in the middle of the crown fixing part.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the combination of screw one and nut one in the connecting component, the engagement of nut one with the bottom slot one of the alveolar block, and the threaded connection of screw one with the threaded opening in the middle of the crown fixing part form a double fixing effect. At the same time, the engagement of the insert rod of the crown fixing part with the slot at the bottom of the alveolar block further enhances the connection strength between the two, ensuring that the crown fixing part is stable and does not loosen on the alveolar block.

[0025] 2. In this utility model, the screw and nut in the fixing component cooperate with each other, the nut engages with the bottom retainer of the crown fixing part, and the screw is threaded into the threaded connection groove in the middle of the implant, so that the implant and the crown fixing part are tightly connected. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a hookless removable denture proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the alveolar block of a hookless removable denture proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the slot for a hookless removable denture proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the latch of a hookless removable denture proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of a hookless removable denture placement slot proposed in this utility model.

[0031] Legend:

[0032] 1. Implant; 2. Alveolar block; 3. Crown fixation part; 4. Sealing gasket; 5. Nut 1; 6. Screw 1; 7. Insert rod; 8. Glue injection groove 1; 9. Threaded opening; 10. Placement groove; 11. Slot; 12. Bayonet 1; 13. Glue injection groove 2; 14. Bayonet 2; 15. Nut 2; 16. Screw 2; 17. Threaded connection groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-4This utility model provides an embodiment of a hookless removable denture, comprising an alveolar block 2 and an implant 1. The alveolar block 2 is fitted with a crown fixation part 3 via a connecting component. This connecting component enables rapid positioning, multiple connections, and modular disassembly between the alveolar block 2 and the crown fixation part 3, improving denture assembly efficiency and structural reliability. A fixation component is installed in the middle of the implant 1; this fixation component effectively fixes the crown fixation part 3 to the implant 1.

[0035] The connecting assembly includes a screw 6, a screw 6, a nut 5, a bayonet 12, and a threaded opening 9, forming a threaded positioning structure that enables precise and rapid docking between the alveolar block 2 and the crown fixation part 3. The top of the screw 6 is fixedly connected to the nut 5. During installation, the nut 5 is aligned with the bayonet 12 at the bottom of the alveolar block 2, and the insert 7 in the middle of the crown fixation part 3 is inserted into the slot 11 at the bottom of the alveolar block 2, completing the initial positioning. Then, by rotating the screw 6, it is threadedly connected to the threaded opening 9 in the middle of the crown fixation part 3. The guiding effect of the thread allows the alveolar block 2 and the crown fixation part 3 to quickly and accurately reach the predetermined position during installation, avoiding repeated adjustments caused by the lack of a precise positioning structure in traditional installation methods, and significantly shortening the installation time. Compared to traditional adhesive methods, this connecting assembly reduces the operational difficulty for medical personnel. The bottom of the alveolar block 2 has a bayonet 12, and the nut 5 engages with the bayonet 12. The crown fixation part 3 has multiple inserts 7 in the middle, and the alveolar block 2 has multiple slots 11 at the bottom. The inserts 7 engage with the slots 11. The connecting assembly also includes a threaded port 9, which is located in the middle of the crown fixation part 3. The screw 6 is threadedly connected to the threaded port 9. When the denture needs cleaning, inspection, or replacement of parts, simply unscrew the screw 6 to release the engagement between the nut 5 and the slot 12, and easily pull out the inserts 7 to separate the alveolar block 2 from the crown fixation part 3. The entire disassembly process is simple and convenient. Compared with traditional adhesive fixation methods, it avoids damage to denture components caused by difficult disassembly, greatly facilitating the daily maintenance and care of the denture. In addition, it allows medical staff to conduct detailed examinations and targeted repairs of the denture, extending its service life and reducing the cost of use for patients.

[0036] Reference Figure 5The fixing component includes screw 16. When screw 16 is screwed into the threaded connection groove 17, the engagement of nut 15 and bayonet 14 prevents screw 16 from rotating and causing the crown fixing part 3 to rotate synchronously, ensuring the stability of the crown's position during installation. Nut 15 is fixedly connected to the top of screw 16. Bayonet 14 is provided at the bottom of crown fixing part 3, and nut 15 engages with bayonet 14. The fixing component also includes threaded connection groove 17, which is located in the middle of implant 1, and screw 16 is threadedly connected to threaded connection groove 17. When the crown needs to be replaced or repaired, simply rotate screw 16 counterclockwise to separate crown fixing part 3 from implant 1.

[0037] Reference Figure 2 and Figure 4 The implant 1 has a placement groove 10 in its middle, and the crown fixation part 3 is in contact with the placement groove 10. The tight contact between the placement groove 10 and the crown fixation part 3 forms a mechanical seal interface, preventing oral bacteria and food debris from seeping into the implant 1. The alveolar block 2 has a sealing gasket 4 at its bottom, and a second injection groove 13 is formed in the middle of the alveolar block 2. A first injection groove 8 is formed in the middle of the crown fixation part 3. The first injection groove 8 and the second injection groove 13 form a through injection channel. By injecting medical-grade resin adhesive into the groove, the crown fixation part 3 and the alveolar block 2 are chemically bonded.

[0038] Working principle: Screw 16 passes through the bottom of the crown fixation part 3 and is threadedly connected to the threaded connection groove 17 in the middle of the implant 1. Nut 15 at the top is engaged with the retainer 14 at the bottom of the crown fixation part 3, so that the implant 1 and the crown fixation part 3 are tightly connected, effectively transmitting chewing force to the alveolar bone. At the same time, the placement groove 10 in the middle of the implant 1 contacts the crown fixation part 3, further enhancing the fit and stability between the two, ensuring that the denture will not easily shake or shift during use.

[0039] The connection between the alveolar block 2 and the crown fixing part 3 relies on the connecting assembly. Screw 6 passes through the bottom of the alveolar block 2, and the nut 5 at the top engages with the retainer 12 at the bottom of the alveolar block 2 to form a preliminary fixation. The lower end of screw 6 is threaded into the threaded port 9 in the middle of the crown fixing part 3. This double fixing method ensures a stable connection between the alveolar block 2 and the crown fixing part 3. In addition, the insert 7 in the middle of the crown fixing part 3 engages with the slot 11 at the bottom of the alveolar block 2, which increases the strength and stability of the connection and effectively prevents relative displacement between the two in the horizontal direction.

[0040] In terms of sealing and maintenance, the sealing gasket 4 at the bottom of the alveolar block 2 can prevent food debris from entering the gap between the denture and the alveolar mucosa, ensuring oral hygiene. The glue injection groove 1 8 and glue injection groove 2 13 opened in the alveolar block 2 and the crown fixation part 3 can inject glue during denture installation, further enhancing the sealing and connection between the components. Moreover, during later maintenance, glue can be added through the glue injection groove as needed, extending the service life of the denture, achieving a stable, comfortable and easy-to-maintain restoration effect.

[0041] 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 hookless removable denture, comprising an alveolar block (2) and an implant (1), characterized in that: The alveolar block (2) is fitted with a crown fixation part (3) via a connecting component, and a fixation component is installed in the middle of the implant (1); The connecting assembly includes a screw (6), a nut (5) is fixedly connected to the top of the screw (6), and a slot (12) is provided at the bottom of the toothed block (2), and the nut (5) is engaged with the slot (12).

2. The hookless removable denture according to claim 1, characterized in that: The crown fixing part (3) is provided with a plurality of inserts (7) in the middle, and the bottom of the alveolar block (2) is provided with a plurality of slots (11), and the plurality of inserts (7) are engaged with the plurality of slots (11).

3. The hookless removable denture according to claim 1, characterized in that: The connecting assembly also includes a threaded opening (9), which is located in the middle of the crown fixing part (3), and the screw (6) is threadedly connected to the threaded opening (9).

4. A hookless removable denture according to claim 1, characterized in that: The fixing component includes a screw two (16), and a nut two (15) is fixedly connected to the top of the screw two (16).

5. A hookless removable denture according to claim 4, characterized in that: The bottom of the crown fixing part (3) is provided with a second slot (14), and the second nut (15) is engaged with the second slot (14).

6. A hookless removable denture according to claim 4, characterized in that: The fixing component also includes a threaded connection groove (17), which is formed in the middle of the implant (1), and the screw (16) is threadedly connected to the threaded connection groove (17).

7. A hookless removable denture according to claim 1, characterized in that: The implant (1) has a placement groove (10) in the middle, and the crown fixing part (3) is in contact with the placement groove (10).

8. A hookless removable denture according to claim 1, characterized in that: The bottom of the alveolar block (2) is provided with a sealing gasket (4), the middle part of the alveolar block (2) is provided with a second glue injection groove (13), and the middle part of the crown fixing part (3) is provided with a first glue injection groove (8).

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