Bionic oral implant bridge

Abstract

The invention is applied to the technical field of oral implant bridges, and particularly discloses a bionic oral implant bridge which comprises a lower abutment, the lower abutment is of an arc-shaped structure and is supported by a carbon fiber reinforced resin matrix composite, an upper abutment is fixedly embedded in the upper surface of the lower abutment, and a lower abutment is fixedly embedded in the lower surface of the upper abutment. The upper abutment is of a blocky structure made of a carbon fiber reinforced resin-based composite material. According to the bionic oral implant bridge, a multi-layer bionic structure composed of the inner supporting layer, the middle filling layer and the outer functional layer is arranged in the outer connecting part connected with the dental crown, the inner supporting layer is composed of the inner supporting part made of metal titanium and the arc-shaped protruding blocks, and the structural strength of the outer connecting part is improved through the inner supporting part; local stress during chewing can be dispersed through the annular distribution design of the protruding blocks made of the titanium material, single-point stress overload of the inner supporting part is avoided, the middle filling layer is made of polymethyl methacrylate, meshing impact force is buffered, and damage to the structure caused by direct transmission of hard force is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral implant bridge, in particular to a bionic oral implant bridge. BACKGROUND

[0002] In the field of oral medicine, oral implant technology is an important means of repairing missing teeth and is widely used in clinical practice. The performance of the implant bridge, which connects the implant and the crown, directly determines the stability, durability and patient comfort of the implant restoration.

[0003] Oral implant bridges need to withstand periodic pressure, shear force and impact force during mastication for a long time, and the direction and size of the force are uncertain. Currently, most implant bridges on the market are made of a single metal material or a single resin material. Although single metal bridges have high mechanical strength, they are heavy and can cause a strong foreign body sensation in the patient's mouth. The rigidity of the metal material is too strong, and it lacks buffering performance. The hard force generated during mastication is easily transmitted directly to the alveolar bone, and long-term use can cause alveolar bone absorption and implant loosening. Single resin bridges are lighter, but the hardness and wear resistance of the resin itself are poor. Under long-term mastication and wear, the surface can be scratched, deformed or even broken, and the service life is short, requiring frequent replacement. SUMMARY

[0004] The purpose of the present application is to provide a bionic oral implant bridge to solve the problem of the current single material implant bridge that cannot simultaneously meet the performance and comfort requirements in oral restoration.

[0005] To achieve the above purpose, the present application provides the following technical solution: a bionic oral implant bridge, comprising a lower abutment, the lower abutment is an arc-shaped structure, the lower abutment is supported by a carbon fiber reinforced resin-based composite material, an upper abutment is embedded and fixed on the upper surface of the lower abutment, the upper abutment is a block-shaped structure made of a carbon fiber reinforced resin-based composite material, the upper abutment is installed equidistantly on the upper surface of the lower abutment, a groove is provided on the upper surface of the lower abutment, and an outer connecting part is embedded and fixed in the groove on the upper surface of the lower abutment.

[0006] Preferably, the outer connecting part is made of nano-zirconium oxide particle reinforced resin, the outer connecting part is a tower-shaped structure, an upper arch body is provided at the center line of the upper surface of the outer connecting part, the upper arch body is an arc-shaped groove structure, a lower arch body is provided at the lower end of the outer surface of the outer connecting part, the lower arch body is an arch-shaped structure, and two lower arch bodies are symmetrically provided on the front surface and the rear surface of the outer connecting part.

[0007] The above technical solution can realize the connection and fixation between the implant bridge and the crown through the outer connecting part.

[0008] Preferably, the outer connecting part is internally hollow, and the internal part of the outer connecting part is provided with a multilayer biomimetic structure.

[0009] By the above technical solution, the multilayer biomimetic structure can be formed in the internal part of the outer connecting part to increase the support strength.

[0010] Preferably, the multilayer biomimetic structure comprises an inner support layer, a middle filling layer and an outer functional layer, the outer functional layer is the outer connecting part, the internal part of the outer connecting part is fixedly installed with an inner support part, the inner support part is a circular truncated cone structure, the lower end of the inner support part penetrates through the lower surface of the outer connecting part and inserts into the groove bottom of the upper abutment, the inner support part is made of metal titanium, the outer surface of the inner support part is fixedly installed with a protrusion, the protrusion is an arc-shaped structure made of metal titanium, the protrusion is annularly installed on the outer surface of the inner support part, the inner support part and the protrusion constitute the inner support layer, the middle filling layer is arranged between the outer surface of the inner support part and the inner surface of the outer connecting part, the middle filling layer is made of polymethyl methacrylate, and the middle filling layer constitutes the middle filling layer.

[0011] By the above technical solution, the multilayer biomimetic structure can increase the structural strength of the outer connecting part.

[0012] Preferably, the lower surface of the lower abutment is provided with a mounting and fixing structure, and the mounting and fixing structure realizes the mounting and connection of the implant bridge frame and the oral cavity through the upper fixing part and the lower fixing part.

[0013] By the above technical solution, the mounting and fixing structure can realize the mounting and connection of the implant bridge frame and the oral cavity.

[0014] Preferably, the mounting and fixing structure comprises an implant mounting plate, the implant mounting plate is fixedly installed on the lower surface of the lower abutment, the lower surface of the lower abutment is equidistantly installed with the implant mounting plate, the lower surface of the implant mounting plate is fixedly connected with the upper fixing part, the upper fixing part is an inverted circular truncated cone structure, the upper fixing part and the implant mounting plate are made of titanium, and the mounting number of the upper fixing part is determined according to the mounting requirement of the implant bridge frame.

[0015] By the above technical solution, the implant mounting plate can realize the mounting and fixing of the upper fixing part.

[0016] Preferably, the lower surface of the upper fixing part is symmetrically provided with a lower fixing part, the lower fixing part is a cylindrical structure made of titanium, the lower fixing part is inlaidly installed in the interior of the alveolar bone, and the upper fixing part and the lower fixing part are connected through an implant connecting part.

[0017] By adopting the above technical solution, the connection between the upper fixing part and the lower fixing part can be achieved through the planting connection part.

[0018] Preferably, the cross-section of the implantation connector is I-shaped, and threaded portions are rotatably installed on the upper and lower surfaces of the implantation connector. The threaded portion on the upper surface of the implantation connector is threadedly connected to the lower surface of the upper fixing portion, and the threaded portion on the lower surface of the implantation connector is threadedly connected to the upper surface of the lower fixing portion. A reinforcing portion is fixedly installed on the outer surface of the implantation connector, and the reinforcing portion has a spiral structure.

[0019] By adopting the above technical solution, the installation strength of the planting connection can be increased through the spiral reinforcement.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the biomimetic dental implant framework:

[0021] 1. In this invention, the external connection part connected to the crown is internally configured with a multi-layer biomimetic structure consisting of an inner support layer, a middle filling layer, and an outer functional layer. The inner support layer is composed of an inner support part made of titanium metal and arc-shaped protrusions. The inner support part increases the structural strength of the external connection part, while the annular distribution design of the titanium protrusions can disperse local stress during chewing and avoid single-point overload of the inner support part. The middle filling layer is made of polymethyl methacrylate, which buffers the occlusal impact force and reduces the direct transmission of hard force to damage the structure. The outer functional layer is an external connection part made of nano-zirconia particle-reinforced resin. The multi-layer biomimetic structure reduces the risk of implant bridge deformation or breakage.

[0022] 2. In this invention, the lower abutment forms a complete modular fixation structure with the implant mounting plate, upper fixation part, implant connection part, and lower fixation part. The lower fixation part is a titanium cylinder embedded in the alveolar bone, which has good bonding force with bone tissue. The implant connection part adopts an I-shaped cross-section design, and the upper and lower ends are tightly threaded to the upper and lower fixation parts respectively through threaded parts, ensuring convenient disassembly and assembly and gapless connection. The spiral reinforcement part on its outer surface can increase the contact area with surrounding tissues, improve connection stability, prevent the bridge from loosening or displacement during use, and ensure the structural reliability of long-term use. The tower-shaped structure of the outer connection part can increase the connection stability between the outer connection part and the crown. The upper arch arc groove on the upper surface of the outer connection part can further increase the connection stability between the outer connection part and the crown. The lower arch on the outer surface of the outer connection part can increase the connection stability between the outer connection part and the upper abutment. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the lower base structure of the present application;

[0026] Figure 4 It is a schematic diagram of the upper base structure of the present application;

[0027] Figure 5 It is a schematic diagram of the implant installation plate structure of the present application;

[0028] Figure 6 It is a schematic diagram of the outer connecting part structure of the present application;

[0029] Figure 7 It is a schematic diagram of the lower arch body structure of the present application;

[0030] Figure 8 It is a schematic diagram of the inner support part structure of the present application;

[0031] Figure 9 It is a schematic diagram of the upper fixed part structure of the present application;

[0032] Figure 10 It is a schematic diagram of the threaded part structure of the present application;

[0033] Figure 11 It is a schematic diagram of the implant connecting part structure of the present application.

[0034] In the figure: 1, lower base; 2, upper base; 3, outer connecting part; 4, upper arch body; 5, lower arch body; 6, middle filling layer; 7, inner support part; 8, protruding block; 9, implant installation plate; 10, upper fixed part; 11, lower fixed part; 12, implant connecting part; 13, threaded part; 14, reinforcing part. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0036] Please refer to Figures 1-11 The present application provides a technical solution: a bionic oral implant bridge frame, comprising a lower base 1, an upper base 2, an outer connecting part 3, an upper arch body 4, a lower arch body 5, a middle filling layer 6, an inner support part 7, a protruding block 8, an implant installation plate 9, an upper fixed part 10, a lower fixed part 11, an implant connecting part 12, a threaded part 13, and a reinforcing part 14.

[0037] The lower base 1 is an arc-shaped structure, the lower base 1 is supported by carbon fiber reinforced resin-based composite material, the upper surface of the lower base 1 is embedded and fixed with the upper base 2, the upper base 2 is a block-shaped structure made of carbon fiber reinforced resin-based composite material, the upper base 2 is installed equidistantly on the upper surface of the lower base 1, the upper surface of the lower base 1 is provided with a groove, the groove in the upper surface of the lower base 1 is embedded and fixed with the outer connecting part 3, the outer connecting part 3 is made of nano zirconium oxide particle reinforced resin, the outer connecting part 3 is a tower-shaped structure as a whole, the upper surface of the outer connecting part 3 is provided with the upper arch body 4 at the middle line, the upper arch body 4 is an arc-shaped groove structure, the outer surface of the outer connecting part 3 is provided with the lower arch body 5 at the lower end, the lower arch body 5 is an arch-shaped structure, the lower arch body 5 is symmetrically provided with two on the front surface and the rear surface of the outer connecting part 3, the inner part of the outer connecting part 3 is hollow, the inner part of the outer connecting part 3 is provided with a plurality of biomimetic structures, the plurality of biomimetic structures form a plurality of biomimetic structures in the inner part of the outer connecting part 3 through the middle filling layer 6 and the inner support part 7 to increase the support strength, the plurality of biomimetic structures include an inner layer support layer, a middle layer filling layer and an outer layer functional layer, the outer layer functional layer is the outer connecting part 3, the inner part of the outer connecting part 3 is fixedly installed with the inner support part 7, the inner support part 7 is a circular truncated cone-shaped structure, the lower end of the inner support part 7 penetrates through the lower surface of the outer connecting part 3 and inserts into the groove bottom of the upper base 2, the inner support part 7 is made of metal titanium, the outer surface of the inner support part 7 is fixedly installed with the protruding block 8, the protruding block 8 is an arc-shaped structure made of metal titanium, the protruding block 8 is annularly installed on the outer surface of the inner support part 7, the inner support part 7 and the protruding block 8 constitute the inner layer support layer, the outer surface of the inner support part 7 and the inner surface of the outer connecting part 3 are provided with the middle filling layer 6, the middle filling layer 6 is made of polymethyl methacrylate, and the middle filling layer 6 constitutes the middle layer filling layer;

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the patient's alveolar bone shape, edentulous region size and other data are obtained through oral CT scanning, the arc of the lower base 1 is determined based on the data, so that the lower base 1 is matched with the natural arc of the alveolar bone, the number of upper bases 2 and the implantation position of the lower fixing part 11 are determined according to the number of missing teeth, so as to ensure that the lower fixing part 11 is matched with the sufficient alveolar bone area, and the lower base 1 is processed according to the designed size: the carbon fiber reinforced resin matrix composite material is integrally formed to ensure the smoothness of the arc structure, and the mounting groove matched with the upper base 2 and the groove corresponding to the outer connecting part 3 are processed on the upper surface of the lower base 1, the upper base 2 made of carbon fiber reinforced resin matrix composite material is made into a block structure, so that the size of the upper base 2 is matched with the mounting groove of the lower base 1, the upper base 2 is embedded in the lower base 1 according to the oral demand, the upper base 2 is fixed, so that the upper base 2 is not loose, the outer connecting part 3 in the shape of a tower is formed by injection molding with nano zirconia particle reinforced resin as the material, a hollow chamber is reserved in the inner part of the outer connecting part 3, the metal titanium is processed into a circular table-shaped inner support part 7, and the arc-shaped titanium protruding block 8 is annularly welded on the outer surface of the inner support part 7 to form an inner support layer, then the inner support part 7 is put into the hollow chamber of the outer connecting part 3, the lower end of the inner support part 7 penetrates through the lower surface of the outer connecting part 3, and then polymethyl methacrylate is injected into the gap between the chambers, and after curing, the middle filling layer 6 is formed, the assembly of the multi-layer bionic structure is completed, the implant installation plate 9, the upper fixing part 10 and the lower fixing part 11 are processed by pure titanium or titanium alloy, the upper fixing part 10 is in an inverted circular table structure and is welded and fixed with the implant installation plate 9, the lower fixing part 11 is in a cylindrical structure and the surface is roughened to improve the bonding force with the alveolar bone, the implant connecting part 12 is processed into an I-shaped cross section, the upper and lower surfaces are respectively processed with threaded parts 13, and the outer surface is wound with a fixed spiral titanium reinforcing part 14.

[0039] The lower surface of the lower abutment 1 is provided with an installation and fixing structure. The installation and fixing structure realizes the connection between the implant bridge and the oral cavity through the upper fixing part 10 and the lower fixing part 11. The installation and fixing structure includes an implant mounting plate 9, which is fixedly installed on the lower surface of the lower abutment 1. Implant mounting plates 9 are installed at equal intervals on the lower surface of the lower abutment 1. The lower surface of the implant mounting plate 9 is fixedly connected to the upper fixing part 10. The upper fixing part 10 is an inverted frustum structure. Both the upper fixing part 10 and the implant mounting plate 9 are made of titanium. The number of upper fixing parts 10 is determined according to the installation requirements of the implant bridge. The lower fixing parts 10 are symmetrically arranged below the upper fixing part 10. The fixation part 11 has a lower fixation part 11 which is a cylindrical structure made of titanium and is embedded in the alveolar bone. The upper fixation part 10 and the lower fixation part 11 are connected by an implant connector 12. The implant connector 12 has an I-shaped cross section. The upper and lower surfaces of the implant connector 12 are respectively rotatably fitted with threaded parts 13. The threaded parts 13 on the upper surface of the implant connector 12 are threadedly connected to the lower surface of the upper fixation part 10, and the threaded parts 13 on the lower surface of the implant connector 12 are threadedly connected to the upper surface of the lower fixation part 11. A reinforcing part 14 is fixedly installed on the outer surface of the implant connector 12. The reinforcing part 14 has a spiral structure.

[0040] like Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, when the patient is treated with the oral implant bridge, the alveolar bone of the patient is anesthetized, a hole is drilled at the position designed before the operation, the drilling depth and diameter match the size of the lower fixing part 11, the prefabricated lower fixing part 11 is implanted into the hole, the bone bonding accelerator is applied to the implant area to make the lower fixing part 11 tightly fit the alveolar bone, and the lower fixing part 11 is ensured not to shake after implantation. The threaded part 13 on the lower surface of the implant connecting part 12 is aligned with the threaded hole on the upper surface of the lower fixing part 11, the threaded part 13 is rotated until the lower end of the implant connecting part 12 is threadedly connected with the lower fixing part 11, at this time the spiral reinforcing part 14 on the outer surface of the implant connecting part 12 is fitted to the surface of the alveolar bone, further enhancing the connection stability, the upper fixing part 10 on the lower surface of the implant mounting plate 9 is aligned with the threaded part 13 on the upper surface of the implant connecting part 12, and is also threadedly connected and tightened to ensure that the upper fixing part 10 and the implant connecting part 12 have no gap, the preliminary connection of the mounting and fixing structure and the lower abutment 1 is completed, the lower abutment 1 and the implant mounting plate 9 are completely installed and fitted, the medical screw is passed through the reserved hole of the implant mounting plate 9 and the lower abutment 1 to completely fix the two, avoiding relative displacement during use, the upper abutment 2 is embedded into the installation groove on the upper surface of the lower abutment 1, and the medical grade epoxy resin adhesive is applied in the groove before embedding to ensure that the upper abutment 2 and the lower abutment 1 are firmly combined, the lower end of the assembled outer connecting part 3 is embedded into the groove on the upper surface of the lower abutment 1, while ensuring that the lower end of the inner support part 7 in the outer connecting part 3 is inserted into the groove bottom of the upper abutment 2, and is fixed by double fixation of adhesive and mechanical clamping, the core structure assembly of the whole bridge is completed, the connection and fixation between the outer connecting part 3 and the dental crown are used, and the installation and use of the oral implant bridge can be realized.

[0041] Working principle: the patient's oral information is obtained by CT scanning, so as to customize each part, the lower abutment 1 adopts an arc structure, which fits the natural arc of the alveolar bone, the upper abutment 2 is installed on the upper surface of the lower abutment 1 according to the number of missing teeth to provide support for the outer connecting part 3, the carbon fiber reinforced resin matrix composite material is adopted to reduce the foreign body sensation in the mouth while ensuring the support force, the inner support part 7 and the annular protrusion 8 constitute an inner structure in the outer connecting part 3, which is the core bearing framework, the arc structure and the annular distribution of the protrusion 8 can expand the stress contact area to avoid local stress concentration, and the middle layer is filled with polymethyl methacrylate to form a middle filling layer 6, which uses the elastic characteristics to buffer the chewing impact force, the lower fixing part 11 is embedded in the alveolar bone hole to form a stable basic fixed structure to provide support for the implant bridge, the upper and lower ends of the implant connecting part 12 are threadedly connected with the upper fixing part 10 and the lower fixing part 11 through the threaded part 13, and the spiral reinforcing part 14 on the outer surface can be embedded into the gap between the surrounding soft tissue and bone to increase the connection friction force and further prevent the implant connecting part 12 from rotating and loosening to strengthen the overall stability.

[0042] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and changes can be made by those skilled in the art without departing from the spirit and principles of the present application.

Claims

1. A biomimetic dental implant bridge, comprising a subapron (1), characterized in that: The lower base (1) is an arc-shaped structure. The lower base (1) is supported by carbon fiber reinforced resin matrix composite material. An upper base (2) is embedded and fixed on the upper surface of the lower base (1). The upper base (2) is a block structure made of carbon fiber reinforced resin matrix composite material. The upper base (2) is installed at equal intervals on the upper surface of the lower base (1). A groove is provided on the upper surface of the lower base (1). An external connecting part (3) is embedded and fixed in the groove on the upper surface of the lower base (1).

2. The biomimetic dental implant framework according to claim 1, characterized in that: The outer connecting part (3) is made of nano-zirconia particle reinforced resin. The outer connecting part (3) is a tower-shaped structure. An upper bow (4) is provided at the center line of the upper surface of the outer connecting part (3). The upper bow (4) is an arc-shaped groove structure. A lower bow (5) is provided at the lower end of the outer surface of the outer connecting part (3). The lower bow (5) is an arch structure. Two lower bows (5) are symmetrically provided on the front and rear surfaces of the outer connecting part (3).

3. The biomimetic dental implant framework according to claim 2, characterized in that: The outer connecting part (3) is hollow inside, and a multi-layer biomimetic structure is provided inside the outer connecting part (3). The multi-layer biomimetic structure is formed inside the outer connecting part (3) through the middle filling layer (6) and the inner support part (7) to increase the support strength.

4. The biomimetic dental implant framework according to claim 3, characterized in that: The multi-layer biomimetic structure includes an inner support layer, a middle filling layer, and an outer functional layer. The outer functional layer is an outer connecting part (3). An inner support part (7) is fixedly installed inside the outer connecting part (3). The inner support part (7) is a frustum-shaped structure. The lower end of the inner support part (7) penetrates the lower surface of the outer connecting part (3) and is inserted into the bottom of the groove of the upper base (2). The inner support part (7) is made of titanium. A protrusion (8) is fixedly installed on the outer surface of the inner support part (7). The protrusion (8) is an arc-shaped structure made of titanium. The protrusion (8) is installed in a ring on the outer surface of the inner support part (7). The inner support part (7) and the protrusion (8) constitute the inner support layer. A middle filling layer (6) is provided between the outer surface of the inner support part (7) and the inner surface of the outer connecting part (3). The middle filling layer (6) is made of polymethyl methacrylate. The middle filling layer (6) constitutes the middle filling layer.

5. The biomimetic dental implant framework according to claim 4, characterized in that: The lower surface of the lower abutment (1) is provided with an installation and fixing structure, which realizes the installation and connection between the implant bridge and the oral cavity through the upper fixing part (10) and the lower fixing part (11).

6. The biomimetic dental implant framework according to claim 5, characterized in that: The installation and fixing structure includes a planting mounting plate (9), which is fixedly installed on the lower surface of the lower base (1). Planting mounting plates (9) are installed at equal intervals on the lower surface of the lower base (1). An upper fixing part (10) is fixedly connected to the lower surface of the planting mounting plate (9). The upper fixing part (10) is an inverted frustum structure. Both the upper fixing part (10) and the planting mounting plate (9) are made of titanium. The number of upper fixing parts (10) installed is determined according to the installation requirements of the planting bridge.

7. The biomimetic dental implant framework according to claim 6, characterized in that: A lower fixing part (11) is symmetrically arranged below the upper fixing part (10). The lower fixing part (11) is a cylindrical structure made of titanium. The lower fixing part (11) is embedded in the alveolar bone. The upper fixing part (10) and the lower fixing part (11) are connected by an implant connector (12).

8. The biomimetic dental implant framework according to claim 7, characterized in that: The planting connection part (12) has an I-shaped cross section. The upper and lower surfaces of the planting connection part (12) are respectively rotatably equipped with threaded parts (13). The threaded part (13) on the upper surface of the planting connection part (12) is threadedly connected to the lower surface of the upper fixing part (10). The threaded part (13) on the lower surface of the planting connection part (12) is threadedly connected to the upper surface of the lower fixing part (11). The outer surface of the planting connection part (12) is fixedly equipped with a reinforcing part (14), which has a spiral structure.

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