Abutment for denture implantation
By introducing a rotating plate, a slot structure, and a buffer pad design into the dental implant abutment, the problem of loose connection between the abutment and the implant is solved, achieving a stable connection and comfortable use of the denture.
Patent Information
- Application Number
- CN202520305834.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-25
AI Technical Summary
When the axial tensile force of the existing dental implant abutment exceeds the combined force of the thread friction and the preload, the screws are easily unscrewed, causing the connection between the abutment and the implant to become loose.
An abutment comprising a crown connection end and an implant connection end was designed. It uses a rotating plate and a slot structure for tight engagement, combined with a buffer pad and elastic block design to evenly distribute the occlusal force and prevent excessive torque from acting directly on the implant.
To ensure the crown is firmly in place, prevent loosening and displacement, improve the stability of the denture in the oral cavity, extend the lifespan of the implant connection, reduce the risk of tissue damage, and improve user comfort.
Smart Images
Figure CN223900863U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to denture implantation technical field, concretely is a kind of for denture implantation's abutment. BACKGROUND
[0002] Denture implant abutment is a key component in the implant tooth repair process, and is an intermediate structure connecting the implant and the upper crown, generally made of pure titanium or titanium alloy and other materials, mainly to transmit and disperse occlusal force;
[0003] When the patient chews food, the occlusal force is transmitted to the abutment through the crown, and the abutment reasonably disperses the force to the implant and the surrounding alveolar bone, like a force transmission bridge, avoiding local pressure damage to the implant and alveolar bone;
[0004] In some mixed food, hard objects may be covered by other soft food, which is easy to be ignored by patients and cause accidental force chewing. When the patient chews hard objects, a large impact force will be generated, which will be transmitted along the axial direction of the crown, abutment and implant. For screw-retained abutments, the impact force will generate axial tension on the screw. Since the screw is connected to the implant through threads, the axial tension will act on the thread flanks. When the axial tension exceeds the combined force of the friction between the threads and the pre-tightening force, the screw will gradually unscrew, causing the connection between the abutment and the implant to loosen.
[0005] Therefore, a kind of abutment for denture implantation is proposed to solve the above problems. SUMMARY
[0006] The utility model aims at providing a kind of abutment for denture implantation, to solve the problem that when axial tension exceeds the combined force of the friction between threads and pre-tightening force, screw will gradually unscrew, causing the connection between abutment and implant to loosen.
[0007] To achieve the above object, the utility model provides the following technical scheme:
[0008] A kind of abutment for denture implant, including crown connecting end and implant connecting end, the upper end of the crown connecting end is installed with crown, the bottom of the crown connecting end is fixedly connected with implant connecting end, the outer side of the implant connecting end is spirally connected with implant;The upper end of the implant is fixedly connected with fixing ring, the upper end of the fixing ring is fixedly connected with fixed block, the implant connecting end includes abutment column, the outer side of the abutment column is equipped with installation slot, the inner side of the installation slot is fixedly connected with elastic block by sticking, the crown connecting end includes crown connecting end main body, the upper end of the crown connecting end main body is fixedly connected with buffer pad, the bottom of the crown connecting end main body is fixedly connected with fixed shaft, the outer side of the fixed shaft is rotatably connected with rotating plate, the bottom of the rotating plate is equipped with clamping groove, the bottom of the fixed shaft is fixedly connected with the inner side of the center of abutment column, the upper end of the buffer pad is fixedly connected with crown by sticking;The buffer pad includes buffer pad main body, the inner side of the buffer pad main body is equipped with buffer layer, the inner side of the buffer layer is fixedly connected with support node.
[0009] As the further optimization of the utility model, wherein: the center point of the fixing ring and the rotating plate is located on the same vertical line, the rotating plate is arranged between the lower end of the crown connecting end main body and the upper end of the abutment column, and the maximum diameter length of the fixing ring and the rotating plate is equal.
[0010] As the further optimization of the utility model, wherein: the fixed block and the clamping groove are provided with a plurality of, the fixed block is circularly arrayed on the upper end of the fixing ring, the clamping groove is circularly arrayed on the bottom of the rotating plate with the bottom center point of the rotating plate as the axis, the fixed block and the clamping groove are mutually clamped, and the connection between the fixed block and the clamping groove and the fixing ring and the rotating plate is arc-shaped.
[0011] As the further optimization of the utility model, wherein: the installation slot is provided with a plurality of, the shape of the cross section of the installation slot is fan-shaped, the installation slot is circularly arrayed on the outer side of the installation slot with the center point of the upper end of the abutment column as the axis, and the installation slot and the elastic block are one-to-one corresponding.
[0012] As the further optimization of the utility model, wherein: the elastic block is provided with a plurality of, the shape of the cross section of the elastic block is fan-shaped, the height of the elastic block and the installation slot is equal, and the arc-shaped side of the elastic block is tightly attached to the inner wall of the implant main body.
[0013] As the further optimization of the utility model, wherein: the buffer layer is provided with a plurality of, the buffer layer is annular, the buffer layers are staggered, the shape of the vertical section of the buffer layer is hexagonal, and the buffer layers are mutually parallel.
[0014] As the further optimization of the utility model, wherein: the support node is provided with several, the support node is provided with spherical, the support node is arranged at the bending of the buffer layer, the support node is evenly distributed in the inside of the buffer layer.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] In the utility model, the rotating plate and the clamping groove are arranged, the implant and the implant connecting end are tightly clamped, the dental crown is firmly positioned, loosening and displacement are avoided, the stability of the denture in the oral cavity is effectively ensured, the buffer pad evenly disperses the occlusal force, prevents the excessive force from directly acting on the implant and the implant connecting end, reduces the risk of loosening of the implant connecting end and damage of the surrounding tissue, prolongs the service life of the implant connecting end, and improves the use comfort of the denture. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall structure schematic view of the utility model;
[0018] Figure 2 It is the implant connecting end installation position structure schematic view of the utility model;
[0019] Figure 3 It is the overall schematic view of the utility model implant;
[0020] Figure 4 It is the implant connecting end dismounting structure schematic view of the utility model;
[0021] Figure 5 It is the buffer pad main body section structure schematic view of the utility model.
[0022] In the drawing: 1, implant; 11, implant main body; 12, fixed ring; 13, fixed block;
[0023] 2, dental crown connecting end; 21, dental crown connecting end main body; 22, fixed shaft; 23, rotating plate; 24, clamping groove; 25, buffer pad; 251, buffer pad main body; 252, buffer layer; 253, support node;
[0024] 3, implant connecting end; 31, abutment column body; 32, installation slot; 33, elastic block;
[0025] 4, dental crown. DETAILED DESCRIPTION
[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0027] It is to be noted that the terms used herein are merely for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combination thereof.
[0028] Please refer to Figures 1-5 The present application provides a technical scheme:
[0029] A kind of abutment for denture implant, including dental crown connecting end 2 and implant connecting end 3, dental crown 4 is installed on the upper end of dental crown connecting end 2, implant connecting end 3 is fixedly connected in dental crown connecting end 2 bottom, implant 1 is spirally connected on the outer side of implant connecting end 3;The upper end of implant 1 is fixedly connected with fixed ring 12, the upper end of fixed ring 12 is fixedly connected with fixed block 13, implant connecting end 3 includes abutment cylinder 31, installation slot 32 is arranged on the outer side of abutment cylinder 31, elastic block 33 is fixedly connected in installation slot 32 inner side by sticking, dental crown connecting end 2 includes dental crown connecting end main body 21, buffer pad 25 is fixedly connected on the upper end of dental crown connecting end main body 21, fixed shaft 22 is fixedly connected in dental crown connecting end main body 21 bottom, rotating plate 23 is rotatably connected on the outer side of fixed shaft 22, clamping groove 24 is arranged in the bottom of rotating plate 23, the bottom of fixed shaft 22 is fixedly connected with the inner side of the center of abutment cylinder 31, and buffer pad 25 is fixedly connected with dental crown 4 by sticking on the upper end;Buffer pad 25 includes buffer pad main body 251, buffer layer 252 is arranged in the inner side of buffer pad main body 251, and support node 253 is fixedly connected in the inner side of buffer layer 252.
[0030] As a further embodiment of the above technical scheme: support node 253 is provided with a plurality of support nodes, support node 253 is provided as a spherical shape, support node 253 is arranged at the bending portion of buffer layer 252, support node 253 is evenly and equidistantly distributed in the inner side of buffer layer 252, support node 253 can provide support force against deformation, keep buffer layer 252 within a reasonable deformation range, thereby prolonging the service life of buffer pad 25;
[0031] As a further implementation of the above technical solution: the center points of the fixed ring 12 and the rotating plate 23 are located on the same vertical line, the rotating plate 23 is arranged between the lower end of the crown connecting end body 21 and the upper end of the abutment column 31, the maximum diameter lengths of the fixed ring 12 and the rotating plate 23 are equal, so that the implant 1 has a certain flexibility when connected with the implant connecting end 3, facilitating installation and adjustment.
[0032] As a further implementation of the above technical solution: the elastic blocks 33 are provided in plurality, the cross-sectional shape of the elastic blocks 33 is fan-shaped, the height of the elastic blocks 33 is equal to that of the installation groove 32, the arc-shaped side of the elastic blocks 33 is tightly attached to the inner wall of the implant body 11, the elastic blocks 33 can adapt to the shape of the inner wall of the implant 1, further enhancing the tightness and stability of the connection.
[0033] As a further implementation of the above technical solution: the fixed blocks 13 and the clamping grooves 24 are provided in plurality, the fixed blocks 13 are circularly arrayed on the upper end of the fixed ring 12, the clamping grooves 24 are circularly arrayed on the bottom of the rotating plate 23 with the center point of the bottom of the rotating plate 23 as the axis, the fixed blocks 13 and the clamping grooves 24 are mutually clamped, the connection between the fixed blocks 13 and the clamping grooves 24 and the fixed ring 12 and the rotating plate 23 is arc-shaped, ensuring the stability of the connection between the implant 1 and the crown connecting end 2, preventing the crown 4 from rotating or displacing during use.
[0034] As a further implementation of the above technical solution: the buffer layers 252 are provided in plurality, the buffer layers 252 are arranged in a ring shape, the buffer layers 252 are staggered, the vertical cross-sectional shape of the buffer layers 252 is hexagonal, the buffer layers 252 are parallel to each other, when the occlusal force is vertically applied to the buffer pad 25, each edge and each corner of the hexagon can become a force transmission path, the buffer layers 252 disperse the force in the plane through the hexagonal structure, improving the overall compressive strength of the buffer pad 25.
[0035] As a further implementation of the above technical solution: the installation grooves 32 are provided in plurality, the cross-sectional shape of the installation grooves 32 is fan-shaped, the installation grooves 32 are circularly arrayed on the outer side of the installation grooves 32 with the center point of the upper end of the abutment column 31 as the axis, the installation grooves 32 correspond to the elastic blocks 33 one by one, which can play a buffering role when the implant connecting end 3 is connected with the implant 1, reducing stress concentration during connection.
[0036] Work flow: First, ensure that the oral environment of the patient is suitable for implant surgery, disinfect the implant site, implant the implant 1 into the patient's alveolar bone, and ensure that the implant 1 is firmly fixed in the alveolar bone. After the implant 1 is implanted, wait for the patient's alveolar bone and the implant 1 to reach a certain degree of bone integration, connect the implant connecting end 3 with the inner side of the implant body 11, and connect the abutment column 31 of the implant connecting end 3 to the inner side of the implant body 11. By screwing, the implant connecting end 3 is screwed into the implant 1. During the screwing process, the elastic block 33 arc side will be squeezed to a certain extent, and at the same time, the elastic block 33 will be in close contact with the inner wall of the implant body 11, which will play a certain buffering and stabilizing role. The crown connecting end body 21 will move downward at the same time, so that the fixing block 13 gradually contacts the clamping groove 24. When the clamping groove 24 is not aligned with the fixing block 13, continue to move downward to make the rotating plate 23 slightly rotate and adjust to ensure that the clamping groove 24 can be accurately aligned with the fixing block 13, so that the fixing block 13 and the clamping groove 24 are engaged with each other. Since the connection between the fixing block 13 and the clamping groove 24 and the fixing ring 12 and the rotating plate 23 is arc-shaped, it helps the fixing block 13 to smoothly slide into the clamping groove 24 during engagement. Continue to move the crown connecting end 2 downward until the fixing block 13 is completely inserted into the clamping groove 24. At this time, the rotating plate 23 will be in close contact with the fixing ring 12 to achieve stable engagement connection. This engagement connection can effectively prevent the crown connecting end 2 from rotating or moving relative to the implant 1, ensuring the stability of the entire denture implant structure. Then, the crown 4 is installed on the upper end of the crown connecting end 2, and the crown 4 is fixedly connected with the buffer pad body 251 by adhesion. When the patient starts to bite, the biting force first acts on the crown 4, and the biting force is transmitted to the buffer pad 25. At this time, the buffer layer 252 begins to bear force, and the force will cause the buffer layer 252 to deform during transmission. The hexagonal structure can disperse the biting force in multiple directions to avoid stress concentration at a certain point. The support node 253 can make the deformation of the buffer layer 252 in different directions more uniform, effectively dispersing the biting force to the entire buffer pad body 251 structure. After the buffer pad 25 fully buffers the biting force, the remaining force is transmitted to the implant connecting end 3 and the implant 1 through the crown connecting end 2. Since the buffer pad 25 has absorbed and dispersed most of the biting force, the force transmitted to the implant connecting end 3 is greatly reduced, thereby protecting the implant 1 and the surrounding alveolar bone and reducing the risk of the implant connecting end 3 loosening or being damaged due to excessive biting force.
[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A base for implanting a denture, comprising a crown connecting end (2) and an implant connecting end (3), characterized in that: The crown connecting end (2) is provided with a crown (4) at the upper end, and is fixedly connected with an implant connecting end (3) at the bottom. The implant (1) is fixedly connected with a fixing ring (12) at the upper end, and the fixing ring (12) is fixedly connected with a fixing block (13) at the upper end. The implant connecting end (3) comprises a base column (31), and the outer side of the base column (31) is provided with an installation slot (32). The inner side of the installation slot (32) is fixedly connected with an elastic block (33) by adhesion. The crown connecting end (2) comprises a crown connecting end main body (21), and the upper end of the crown connecting end main body (21) is fixedly connected with a buffer pad (25). The bottom of the crown connecting end main body (21) is fixedly connected with a fixed shaft (22), and the outer side of the fixed shaft (22) is rotatably connected with a rotating plate (23). The bottom of the rotating plate (23) is provided with a clamping groove (24), and the bottom of the fixed shaft (22) is fixedly connected with the inner side of the center of the base column (31). The upper end of the buffer pad (25) is fixedly connected with the crown (4) by adhesion. The buffer pad (25) comprises a buffer pad main body (251), and the inner side of the buffer pad main body (251) is provided with a buffer layer (252). The inner side of the buffer layer (252) is fixedly connected with a support node (253).
2. The abutment for dental implant according to claim 1, wherein: The center points of the fixing ring (12) and the rotating plate (23) are located on the same vertical line. The rotating plate (23) is arranged between the lower end of the crown connecting end main body (21) and the upper end of the base column (31). The maximum diameter lengths of the fixing ring (12) and the rotating plate (23) are equal.
3. The abutment for dental implant according to claim 1, wherein: The fixing block (13) and the clamping groove (24) are arranged in a plurality of numbers. The fixing block (13) is circularly arranged on the upper end of the fixing ring (12). The clamping groove (24) is circularly arranged on the bottom of the rotating plate (23) with the bottom center point of the rotating plate (23) as the axis. The fixing block (13) and the clamping groove (24) are clamped with each other. The connection positions of the fixing block (13) and the clamping groove (24) with the fixing ring (12) and the rotating plate (23) are arc-shaped.
4. The abutment for dental implant according to claim 1, wherein: The installation slot (32) is arranged in a plurality of numbers. The cross section of the installation slot (32) is in the shape of a sector. The installation slot (32) is circularly arranged on the outer side of the installation slot (32) with the center point of the upper end of the base column (31) as the axis. The installation slot (32) corresponds to the elastic block (33) one by one.
5. The abutment for dental implant according to claim 1, wherein: The elastic block (33) is arranged in a plurality of numbers. The cross section of the elastic block (33) is in the shape of a sector. The height of the elastic block (33) is equal to that of the installation slot (32). The arc-shaped side of the elastic block (33) is tightly attached to the inner wall of the implant main body (11).
6. The abutment for dental implant according to claim 1, wherein: The buffer layer (252) is arranged in a plurality of numbers. The buffer layer (252) is arranged in a ring shape. The buffer layers (252) are arranged in an interlaced manner. The vertical cross section of the buffer layer (252) is in the shape of a hexagon. The buffer layers (252) are parallel to each other.
7. The abutment for dental implant according to claim 1, wherein: The support nodes (253) are provided in several numbers, are provided in a spherical shape, are arranged at the bending positions of the buffer layer (252), and are uniformly and equidistantly distributed on the inner side of the buffer layer (252).