Mortise and tenon joint type combined bridge body structure based on fixed bridge

Abstract

The utility model provides a tenon-and-mortise joint bridge body structure based on a fixed bridge, which comprises a first bridge body arranged on a first abutment tooth, a second bridge body arranged on a second abutment tooth, and a connecting assembly arranged between the first bridge body and the second bridge body, and the connecting assembly comprises a first connecting groove formed in the first bridge body, and a second connecting groove formed in the second bridge body; the connecting lug is arranged at the position, corresponding to the first connecting groove, of the second bridge body, and the limiting part is arranged between the first connecting groove and the connecting lug. By adopting a tenon-and-mortise design mode, the problem that conventional bridge repairing is difficult to implement when a plurality of abutment teeth have large undercuts or have no common path of insertion is effectively solved, an adhesive is prevented from being directly exposed to an oral environment, the service life of a bridge body is prolonged, and the stability and reliability of a repairing effect are improved; the structure has the advantages of being firm in combination, attractive, natural and controllable in precision, the repair experience and the oral health level of a patient can be improved, innovativeness and practicability are achieved, and popularization and implementation are convenient.

Description

Technical Field

[0001] This application belongs to the field of oral restoration technology, specifically relating to a tenon-and-mortise joint bridge structure based on a fixed bridge. Background Technology

[0002] In existing technologies, fixed bridges play a crucial role in dental restorations, effectively restoring multiple consecutive missing teeth and improving patients' chewing function and aesthetics. However, current conventional bridge restoration methods have some shortcomings in practical applications.

[0003] In existing technologies, conventional fixed bridge restorations require high-quality abutment teeth. When multiple abutment teeth have significant undercuts or lack a common path of insertion, conventional bridge restorations become difficult to implement smoothly. If fabrication is attempted, a large amount of adhesive must be used to fill the undercuts during intraoral bonding. This exposure of the adhesive to the patient's oral environment can lead to a series of adverse consequences. On the one hand, it affects the lifespan of the restoration, potentially causing weak bonding and material aging. On the other hand, it poses a potential threat to the patient's oral health, such as causing oral inflammation and allergic reactions. Furthermore, during tooth preparation, dentists often struggle to create a bridge with a perfect common path of insertion due to limited intraoral space or poor abutment tooth conditions. Once undercuts occur, relying on adhesive filling has numerous drawbacks, significantly compromising the overall effectiveness of the fixed bridge restoration.

[0004] Therefore, in order to solve a series of problems caused by placement path issues in existing fixed bridge restorations, improve the stability and reliability of restorations, and at the same time take into account aesthetics and compatibility with the oral environment, it is now urgent to make improvements to better meet clinical needs and improve patients' restoration experience and oral health. Utility Model Content

[0005] In order to address the technical problems in the prior art, such as the high requirements for the conditions of the abutment teeth in bridge restorations, the difficulty in smooth implementation when multiple abutment teeth have large undercuts or no common path of insertion, the exposure of the adhesive to the oral environment due to forced fabrication, the impact on the service life of the restoration and the threat to oral health, and the high difficulty in preparing a bridge body with a common path of insertion, this application proposes a tenon-and-mortise joint bridge structure based on a fixed bridge.

[0006] This application adopts the following solution: a tenon-and-mortise joint bridge structure based on a fixed bridge, including a first bridge body disposed on a first abutment tooth, a second bridge body disposed on a second abutment tooth, and a connecting component disposed between the first bridge body and the second bridge body. The connecting component includes a first connecting groove disposed on the first bridge body, a connecting lug disposed on the second bridge body at a position corresponding to the first connecting groove, and a limiting part disposed between the first connecting groove and the connecting lug. The connecting lug is matched and disposed in the first connecting groove, and the limiting part is used to restrict the connecting lug from moving away from the first connecting groove.

[0007] In some feasible embodiments, the connecting ear includes a vertical extension and a connecting flange disposed at the bottom of the vertical extension, and the limiting portion is disposed at one end of the vertical extension near the first connecting groove.

[0008] In some feasible embodiments, the limiting portion includes limiting posts respectively disposed on both sides of the vertical extension portion, and a clearance groove disposed between the two limiting posts.

[0009] In some feasible embodiments, the cross-sectional shape of the limiting post is any one of a semi-circle, a quadrilateral, or a triangle.

[0010] In some feasible embodiments, the total length of the first bridge body is defined as L, and the length of the connecting lug is defined as l, wherein L and l satisfy the following relationship: 2≤L / l≤3.5.

[0011] In some feasible embodiments, the first bridge body includes a first bridge seat and a second connecting groove disposed on the first bridge seat, the first abutment tooth being matched and disposed in the second connecting groove, and the first connecting groove being disposed on the first bridge seat.

[0012] In some feasible embodiments, the second bridge body includes a second bridge seat and a third connecting groove disposed on the second bridge seat, the second abutment tooth being matched and disposed in the third connecting groove, and the connecting lug being disposed on the second bridge seat.

[0013] In some feasible embodiments, the material of the first bridge body / second bridge body is selected from any one of metal, resin, and ceramic.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] This application provides a mortise and tenon joint bridge structure based on a fixed bridge, comprising a first bridge body disposed on a first abutment tooth, a second bridge body disposed on a second abutment tooth, and a connecting component disposed between the first and second bridge bodies. The connecting component includes a first connecting groove disposed on the first bridge body, a connecting ear disposed on the second bridge body at a corresponding position to the first connecting groove, and a limiting part disposed between the first connecting groove and the connecting ear. The connecting ear is fitted within the first connecting groove, and the limiting part is used to restrict the connecting ear from moving away from the first connecting groove. This application adopts a mortise and tenon design, which can effectively solve the problem of the difficulty in smoothly implementing conventional bridge restorations when multiple abutment teeth have large undercuts or no common path of insertion. It avoids the exposure of adhesive to the oral environment due to forced fabrication, thereby improving the service life of the restoration, reducing potential threats to the patient's oral health, and improving the stability and reliability of the restoration effect. At the same time, this structure has the advantages of strong bonding, natural aesthetics, and controllable precision, which can better meet clinical needs, improve the patient's restoration experience and oral health level, and is innovative and practical, making it easy to promote and implement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a combined bridge in the prior art;

[0017] Figure 2 This is a structural schematic diagram of a tenon-and-mortise joint bridge structure based on a fixed bridge according to this application;

[0018] Figure 3 This is a structural schematic diagram of another state of the mortise and tenon joint bridge structure based on a fixed bridge according to this application;

[0019] Figure 4 This is a structural schematic diagram of a tenon-and-mortise joint bridge structure based on a fixed bridge according to this application;

[0020] Figure 5 This is a structural schematic diagram of another state of the mortise and tenon joint bridge structure based on a fixed bridge according to this application;

[0021] Figure 6 This is a structural schematic diagram of another state of the mortise and tenon joint bridge structure based on a fixed bridge according to this application. Detailed Implementation

[0022] Combination Figures 1-6The following description further illustrates the technical solution proposed in this application. This application provides a tenon-and-mortise joint bridge structure based on a fixed bridge, including a first bridge body 1 disposed on a first abutment tooth, a second bridge body 2 disposed on a second abutment tooth, and a connecting component 3 disposed between the first bridge body 1 and the second bridge body 2. The connecting component 3 includes a first connecting groove 30 disposed on the first bridge body 1, a connecting lug 31 disposed on the second bridge body 2 at a corresponding position to the first connecting groove 30, and a limiting portion 32 disposed between the first connecting groove 30 and the connecting lug 31. The connecting lug 31 is fitted into the first connecting groove 30, and the limiting portion 32 is used to restrict the connecting lug 31 from moving away from the first connecting groove 30.

[0023] In actual implementation, the first bridge body 1 is first installed on the first abutment tooth, and the second bridge body 2 is installed on the second abutment tooth. The connecting ear 31 on the second bridge body 2 matches and inserts into the first connecting slot 30 of the first bridge body 1, and the two fit tightly together to achieve a stable connection between the bridge bodies. The limiting part 32 limits the connecting ear 31, preventing it from moving away from the first connecting slot 30, making the connection more secure and reliable, effectively dispersing and transmitting occlusal forces, reducing the burden on the abutment teeth, and improving the stability and service life of the restoration.

[0024] In practice, by setting a connecting component between the first and second bridge bodies, the problem of the difficulty in smoothly implementing conventional bridge restorations when multiple abutment teeth have large undercuts or no common path of insertion is solved; it avoids the forced fabrication that would expose the adhesive to the oral environment, thereby improving the lifespan of the restoration and reducing potential threats to the patient's oral health.

[0025] This application provides a mortise and tenon joint bridge structure based on a fixed bridge, comprising a first bridge body disposed on a first abutment tooth, a second bridge body disposed on a second abutment tooth, and a connecting component disposed between the first and second bridge bodies. The connecting component includes a first connecting groove disposed on the first bridge body, a connecting ear disposed on the second bridge body at a corresponding position to the first connecting groove, and a limiting portion disposed between the first connecting groove and the connecting ear. This application employs a mortise and tenon design, effectively solving the problem of the difficulty in implementing conventional bridge restorations when multiple abutment teeth have large undercuts or no common path of insertion. It avoids direct exposure of the adhesive to the oral environment, improves the lifespan of the bridge body, and enhances the stability and reliability of the restoration effect. This structure has the advantages of strong bonding, natural aesthetics, and controllable precision, which can improve the patient's restoration experience and oral health level. It is innovative and practical, and easy to promote and implement.

[0026] In this embodiment, the connecting ear 31 includes a vertical extension 310 and a connecting flange 311 disposed at the bottom of the vertical extension 310, and the limiting part 32 is disposed at one end of the vertical extension 310 near the first connecting groove 30.

[0027] In this embodiment, the limiting part 32 includes limiting posts 320 respectively provided on both sides of the vertical extension part 310, and a clearance groove 321 provided between the two limiting posts 320.

[0028] In this embodiment, the cross-sectional shape of the limiting post 320 is any one of a semi-circle, a quadrilateral, or a triangle.

[0029] For example, the cross-sectional shape of the limiting post is semi-circular.

[0030] In actual implementation, the connection between the connecting flange 311 and the first connecting groove 30, as well as the limiting effect of the limiting post 320, jointly ensure the stability of the connection between the first bridge body and the second bridge body, effectively preventing the first bridge body and the second bridge body from loosening or falling off during use, thus improving the reliability and safety of the two bridge bodies.

[0031] In this embodiment, the total length of the first bridge body 1 is defined as L, and the length of the connecting ear 31 is defined as l. The relationship between L and l is as follows: 2≤L / l≤3.5.

[0032] In actual implementation, L / l = 2.5.

[0033] In this embodiment, the first bridge body 1 includes a first bridge seat 10 and a second connecting groove 11 disposed on the first bridge seat 10. The first abutment tooth is matched and disposed in the second connecting groove 11, and the first connecting groove 30 is disposed on the first bridge seat 10.

[0034] In this embodiment, the second bridge body 2 includes a second bridge seat 20 and a third connecting groove 21 disposed on the second bridge seat 20. The second abutment tooth is matched and disposed in the third connecting groove 21, and the connecting lug 31 is disposed on the second bridge seat 20.

[0035] In actual implementation, the first and second abutment teeth are installed into the connecting slots of the first bridge body 1 and the second bridge body 2, respectively, ensuring a tight fit between the abutment teeth and the bridge body. The connecting flange 311 of the connecting lug 31 on the second bridge body 2 is inserted into the first connecting slot 30 on the first bridge body 1, achieving the initial connection between the two bridge bodies. The structure of the first connecting slot matches the structure of the connecting lug, and the limiting post 320 plays a limiting role during the connection process, preventing the connecting lug 31 from being over-inserted or shifting, ensuring the accuracy of the connection. The clearance slot 321 provides space for the installation or movement of other components, avoiding structural interference.

[0036] In this embodiment, the material of the first bridge body 1 / the second bridge body 2 is selected from any one of metal, resin, and ceramic.

[0037] This application provides a mortise and tenon joint bridge structure based on a fixed bridge, comprising a first bridge body disposed on a first abutment tooth, a second bridge body disposed on a second abutment tooth, and a connecting component disposed between the first and second bridge bodies. The connecting component includes a first connecting groove disposed on the first bridge body, a connecting ear disposed on the second bridge body at a corresponding position to the first connecting groove, and a limiting portion disposed between the first connecting groove and the connecting ear. This application employs a mortise and tenon design, effectively solving the problem of the difficulty in implementing conventional bridge restorations when multiple abutment teeth have large undercuts or no common path of insertion. It avoids direct exposure of the adhesive to the oral environment, improves the lifespan of the bridge body, and enhances the stability and reliability of the restoration effect. This structure has the advantages of strong bonding, natural aesthetics, and controllable precision, which can improve the patient's restoration experience and oral health level. It is innovative and practical, and easy to promote and implement.

[0038] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A tenon-and-mortise joint bridge structure based on a fixed bridge, characterized in that, The device includes a first bridge body (1) disposed on a first abutment tooth, a second bridge body (2) disposed on a second abutment tooth, and a connecting assembly (3) disposed between the first bridge body (1) and the second bridge body (2). The connecting assembly (3) includes a first connecting groove (30) disposed on the first bridge body (1), a connecting lug (31) disposed on the second bridge body (2) at a position corresponding to the first connecting groove (30), and a limiting part (32) disposed between the first connecting groove (30) and the connecting lug (31). The connecting lug (31) is matched and disposed in the first connecting groove (30), and the limiting part (32) is used to restrict the connecting lug (31) from moving away from the first connecting groove (30).

2. The mortise and tenon joint bridge structure based on a fixed bridge according to claim 1, characterized in that, The connecting ear (31) includes a vertical extension (310) and a connecting flange (311) provided at the bottom of the vertical extension (310). The limiting part (32) is provided at one end of the vertical extension (310) near the first connecting groove (30).

3. The mortise and tenon joint bridge structure based on a fixed bridge according to claim 2, characterized in that, The limiting part (32) includes limiting posts (320) respectively provided on both sides of the vertical extension (310), and a relief groove (321) provided between the two limiting posts (320).

4. The mortise and tenon joint bridge structure based on a fixed bridge according to claim 3, characterized in that, The cross-sectional shape of the limiting post (320) can be any one of a semi-circle, a quadrilateral, or a triangle.

5. A tenon-and-mortise joint bridge structure based on a fixed bridge according to claim 1, characterized in that, The total length of the first bridge body (1) is defined as L, and the length of the connecting ear (31) is defined as l. The L and the l satisfy the following relationship: 2≤L / l≤3.

5.

6. A tenon-and-mortise joint bridge structure based on a fixed bridge according to claim 2, characterized in that, The first bridge body (1) includes a first bridge seat (10) and a second connecting groove (11) disposed on the first bridge seat (10), the first abutment tooth is matched and disposed in the second connecting groove (11), and the first connecting groove (30) is disposed on the first bridge seat (10).

7. A tenon-and-mortise joint bridge structure based on a fixed bridge according to claim 1, characterized in that, The second bridge body (2) includes a second bridge seat (20) and a third connecting groove (21) disposed on the second bridge seat (20), the second abutment tooth is matched in the third connecting groove (21), and the connecting ear (31) is disposed on the second bridge seat (20).

8. A tenon-and-mortise joint bridge structure based on a fixed bridge according to claim 1, characterized in that, The material of the first bridge body (1) / the second bridge body (2) is selected from any one of metal, resin and ceramic.

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