A dental bridge fixation structure

Abstract

The utility model discloses a kind of dental crown bridge fixed structures, including the dental crown bridge being formed by three dental crown bodies;Three dental crown body inside is provided with reinforcing assembly;The lower part of the dental crown body located in both sides is all provided with the slot body of opening;Slot body inside is all provided with abutment, and the upper portion of abutment is connected with corresponding dental crown body;The implant is screw-connected in the lower part of abutment;By being commonly provided with first reinforcing rib in three dental crown body interior, the overall mechanical strength and the fracture resistance of dental crown bridge are significantly enhanced, the first reinforcing rib is connected with three dental crowns by interior, forms a stable reinforcing frame, can effectively disperse the occlusal force generated in mastication process, reduce the risk that stress is concentrated at connecting place or weak position, thereby significantly reduce the possibility that dental crown bridge appears fracture or damage due to long-term stress, prolong the service life of prosthesis.

Description

Technical Field

[0001] This utility model belongs to the field of dental crown bridge technology, specifically, it relates to a dental crown bridge fixing structure. Background Technology

[0002] Dental crowns and bridges are a common fixed restorative technique in dentistry, primarily used to repair damaged or missing teeth. They restore the shape, chewing function, and aesthetics of teeth by fixing an artificial crown (for single-tooth restorations) or bridge (for multiple-tooth restorations) to prepared abutment teeth or dental implants. Dental crowns and bridges are suitable for patients with severely damaged teeth due to caries, wear, fracture, or loss. The fabrication process is complex and the cost is relatively high. Post-operative care requires special attention to oral hygiene and regular checkups to ensure the long-term use of the restoration.

[0003] Existing crown bridge structures typically consist of three crowns. The central crown is not structurally supported at its base, while the two outer crowns are fixed to the abutment teeth or to the alveolar bone via implants. The two outer crowns provide support to the central crown. However, under long-term use, this structure lacks sufficient connection strength because the central crown is not directly connected to the alveolar bone but indirectly connected through the two outer crowns forming a bridge structure. Under the force generated during chewing, the connection between the central crown and the outer crowns can be damaged or even break, thus exhibiting certain limitations. Utility Model Content

[0004] To address the technical problem that dental crown bridge structures, due to the lack of direct support for the intermediate crown, are prone to stress concentration points at the connection points under chewing forces, leading to damage or even breakage, this utility model provides a dental crown bridge fixing structure.

[0005] The objective of this utility model can be achieved through the following technical solutions: A dental crown bridge fixation structure includes a dental crown bridge composed of three crown bodies; each of the three crown bodies has a reinforcing component inside; each crown body on both sides has an open groove at its lower part; each groove has an abutment inside, and the upper part of the abutment is connected to the corresponding crown body; an implant is threadedly connected to the lower part of the abutment.

[0006] Furthermore, the implant has a conical structure; and a second thread is provided on the outer surface of the implant.

[0007] Furthermore, the reinforcing component includes a first reinforcing rib that is commonly disposed inside the three crown bodies.

[0008] Furthermore, a resin filler is provided on one side of the crown body corresponding to the position of the first reinforcing rib.

[0009] Furthermore, an elastic element is provided between the implant and the abutment.

[0010] Furthermore, the outer surfaces of both the upper and lower ends of the elastic element are provided with first threads, and the lower part of the elastic element is connected to the implant via the first thread, while the upper part of the elastic element is connected to the abutment via the first thread.

[0011] Furthermore, a protective layer is provided on the outside of the crown body, and the protective layer is fixed to the outside of the crown body by a first reinforcing rib.

[0012] Furthermore, the reinforcing component includes a second reinforcing rib that is commonly disposed inside the three crown bodies, and the second reinforcing rib has a U-shaped structure.

[0013] The beneficial effects of this utility model are: 1. This utility model significantly enhances the overall mechanical strength and fracture resistance of the dental crown bridge by having a first reinforcing rib jointly set inside the three crown bodies. The first reinforcing rib connects the three crowns internally to form a stable reinforced frame, which can effectively disperse the biting force generated during chewing, reduce the risk of stress concentration at the connection or weak parts, thereby significantly reducing the possibility of the dental crown bridge breaking or being damaged due to long-term stress and extending the service life of the restoration.

[0014] 2. This utility model fills the crown body with resin filling material on one side corresponding to the first reinforcing rib, so that it can form a smooth and flat surface after curing, avoiding contact between oral soft tissue and tongue with rough or sharp metal edges, thereby improving wearing comfort; at the same time, with its good biocompatibility and sealing properties, it can effectively isolate saliva and microorganisms from erosion of the internal metal structure, prevent corrosion inside the restoration, and further ensure the long-term stability and service life of the crown bridge.

[0015] 3. This utility model provides a protective layer on the outside of the crown body and strengthens the connection between the protective layer and the crown body with a first reinforcing rib. The protective layer can effectively isolate the direct erosion of saliva, microorganisms and chewing force, reduce wear and discoloration on the crown surface, and improve aesthetics. The first reinforcing rib, as an internal support frame, not only enhances the mechanical interlocking and adhesion between the protective layer and the crown body, preventing the protective layer from peeling or shifting, but also reduces stress concentration by dispersing occlusal force, reducing the risk of restoration fracture, thereby extending the service life of the crown bridge and ensuring its long-term stability.

[0016] 4. This utility model further enhances the overall bending and torsional resistance of the crown bridge by setting a second reinforcing rib with a U-shaped structure inside the three crown bodies. The second reinforcing rib with the U-shaped structure can better disperse the complex stress generated during the occlusion process. Especially when subjected to lateral or torsional forces, it can effectively reduce fatigue damage at the connection point, thereby significantly improving the mechanical stability and long-term durability of the restoration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a cross-sectional schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 3 This is a cross-sectional schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 4 This is a cross-sectional schematic diagram of the second reinforcing rib in Embodiment 3 of this utility model; The attached diagram lists the components represented by each number as follows: 1. Crown body; 2. Abutment; 3. Implant; 4. Resin filling; 5. First reinforcing rib; 6. Elastic element; 7. First thread; 8. Protective layer; 9. Second thread; 10. Groove. Detailed Implementation

[0018] 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.

[0019] Example 1: Please see Figure 1 - Figure 2 As shown, a dental crown bridge fixing structure includes a dental crown bridge composed of three crown bodies 1; the three crown bodies 1 are provided with a first reinforcing rib 5, which has a needle-like structure and is made of a high-strength metal alloy with a Vickers hardness of approximately 400-800 kg / mm². 2It is used to effectively disperse the biting force generated during chewing, reduce the risk of stress concentration at the joint or weak parts, thereby significantly reducing the possibility of the crown bridge breaking or being damaged due to long-term stress and extending the service life of the restoration; a resin filling 4 is provided on one side of the crown body 1 corresponding to the position of the first reinforcing rib 5. The resin filling 4 is used to fill the installation channel reserved in the first reinforcing rib 5 and forms a smooth and flat surface after curing, avoiding contact between oral soft tissue and tongue with rough or sharp metal edges, thereby improving wearing comfort.

[0020] Both sides of the crown body 1 have an open groove 10 at the bottom, which is circular in structure. The groove 10 is provided with an abutment 2 inside each groove 10, and the upper part of the abutment 2 is connected to the corresponding crown body 1. The abutment 2 is used to effectively transfer the chewing force borne by the crown to the implant 3 and the jawbone, simulating the function of natural teeth and helping to restore the aesthetics and chewing function of the teeth. The lower part of the abutment 2 is threaded to the implant 3, which is conical in structure and is used to act as an artificial tooth root, providing stable support and retention for the upper restoration. The outer surface of the implant 3 is provided with a second thread 9, and the implant 3 is connected to the alveolar bone through the second thread 9.

[0021] An elastic element 6 is provided between the implant 3 and the abutment 2. The elastic element 6 has a cylindrical structure and uses its own elastic deformation to buffer and disperse the occlusal force, effectively reducing the direct transmission of impact stress generated during chewing to the implant 3 and surrounding bone tissue, thereby reducing the risk of bone resorption around the implant 3, peri-implantitis, and temporomandibular joint injury caused by stress concentration. The outer surfaces of both the upper and lower ends of the elastic element 6 are provided with first threads 7, and the elastic element 6 is connected to the implant 3 through the lower first thread 7 and to the abutment 2 through the upper first thread 7.

[0022] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below: In use, medical staff first use tools to make a deep hole on one side of the crown body 1 that fits the first reinforcing rib 5. Then, the first reinforcing rib 5 is inserted into the deep hole. Finally, resin filler 4 is filled into the crown body 1 at the position corresponding to the first reinforcing rib 5, so that it forms a smooth and flat surface after curing, thus completing the installation of the first reinforcing rib 5. After the first reinforcing rib 5 is installed, medical staff can complete the installation and fixation of the crown bridge in the patient's oral cavity according to the conventional installation steps.

[0023] This invention significantly enhances the overall mechanical strength and fracture resistance of the dental crown bridge by having a first reinforcing rib 5 jointly provided inside the three crown bodies 1. The first reinforcing rib 5 connects the three crowns internally to form a stable reinforced framework, which can effectively disperse the biting force generated during chewing, reduce the risk of stress concentration at the connection or weak parts, thereby significantly reducing the possibility of the dental crown bridge breaking or being damaged due to long-term stress and extending the service life of the restoration.

[0024] This invention fills one side of the crown body 1 with resin filler 4 at the position corresponding to the first reinforcing rib 5, so that it can form a smooth and flat surface after curing, avoiding contact between oral soft tissue and tongue with rough or sharp metal edges, thereby improving wearing comfort; at the same time, with its good biocompatibility and sealing properties, it can effectively isolate saliva and microorganisms from erosion of the internal metal structure, prevent corrosion inside the restoration, and further ensure the long-term stability and service life of the crown bridge.

[0025] Example 2: Please refer to it again. Figure 3 As shown, this utility model is a dental crown bridge fixing structure. This embodiment is basically the same as the first embodiment in structure. The difference is that in this embodiment, the three crown bodies 1 are provided with a first reinforcing rib 5 inside. The first reinforcing rib 5 penetrates the crown body 1 and extends outward at both ends. The crown body 1 is provided with a protective layer 8 on the outside of each crown body 1. The protective layer 8 is fixed to the outside of the crown body 1 by the first reinforcing rib 5. The protective layer 8 is used to enhance the wear resistance of the crown body 1.

[0026] In practical use, medical staff first insert a first reinforcing rib 5 into the crown body 1, and then cover the outer surface of the crown bridge with a protective layer 8. The first reinforcing rib 5 is used to strengthen the connection between the protective layer 8 and the crown.

[0027] This invention provides a protective layer 8 on the outside of the crown body 1, and strengthens the connection between the protective layer 8 and the crown body 1 with a first reinforcing rib 5. The protective layer 8 can effectively isolate the direct erosion of saliva, microorganisms and chewing force, reduce wear and discoloration on the crown surface, and improve aesthetics. The first reinforcing rib 5, as an internal support frame, not only enhances the mechanical interlocking and adhesion between the protective layer 8 and the crown body 1, preventing the protective layer 8 from peeling or shifting, but also reduces stress concentration by dispersing occlusal force, reducing the risk of restoration fracture, thereby extending the service life of the crown bridge and ensuring its long-term stability.

[0028] Example 3: Please refer to it again. Figure 4As shown, this utility model is a dental crown bridge fixation structure. This embodiment is basically the same as the first embodiment in structure. The difference is that in this embodiment, the three crown bodies 1 are provided with a second reinforcing rib. The second reinforcing rib is U-shaped and is used to further enhance the overall bending and torsional resistance of the dental crown bridge. The U-shaped second reinforcing rib can better disperse the complex stress generated during the occlusion process. Especially when subjected to lateral or torsional forces, it can effectively reduce fatigue damage at the connection, thereby significantly improving the mechanical stability and long-term durability of the restoration.

[0029] This invention further enhances the overall bending and torsional resistance of the crown bridge by providing a second reinforcing rib with a U-shaped structure inside the three crown bodies 1. The second reinforcing rib with the U-shaped structure can better disperse the complex stress generated during the occlusion process. Especially when subjected to lateral or torsional forces, it can effectively reduce fatigue damage at the connection point, thereby significantly improving the mechanical stability and long-term durability of the restoration.

[0030] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dental crown bridge fixing structure, comprising a dental crown bridge composed of three crown bodies (1); characterized in that: The three crown bodies (1) are equipped with reinforcing components; the lower part of the crown bodies (1) on both sides is provided with an open groove (10); the groove (10) is provided with an abutment (2), and the upper part of the abutment (2) is connected to the corresponding crown body (1); the lower part of the abutment (2) is threaded with an implant (3). The reinforcing component includes a first reinforcing rib (5) that is commonly provided inside the three crown bodies (1), and the first reinforcing rib has a needle-like structure; A deep hole is made on one side of the crown body to fit the first reinforcing rib, and then the first reinforcing rib is inserted into the deep hole; The first reinforcing rib penetrates the crown body and extends outward at both ends; a protective layer is provided on the outside of the crown body, and the protective layer is fixed to the outside of the crown body by the first reinforcing rib. An elastic element (6) is provided between the implant (3) and the abutment (2), and the elastic element is in the form of a cylinder. The outer surfaces of the upper and lower ends of the elastic element (6) are provided with first threads (7), and the lower part of the elastic element (6) is connected to the implant (3) via the first threads (7), and the upper part of the elastic element (6) is connected to the abutment (2) via the first threads (7).

2. The dental crown bridge fixation structure according to claim 1, characterized in that: The implant (3) has a conical structure; the outer surface of the implant (3) is provided with a second thread (9).

3. The dental crown bridge fixation structure according to claim 1, characterized in that: A resin filling material (4) is provided on one side of the crown body (1) at the position corresponding to the first reinforcing rib (5).

4. The dental crown bridge fixation structure according to claim 1, characterized in that: The reinforcing component includes a second reinforcing rib that is commonly provided inside the three crown bodies (1), and the second reinforcing rib has a U-shaped structure.

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