An assembly structure of an implant and an abutment and a dental implant

Abstract

The utility model discloses an assembly structure of implant and abutment and implant tooth, the assembly structure of implant and abutment includes implant body and with implant body dismounting and connecting abutment body, and implant body includes implanting part and connecting portion from below to above arrangement, and connecting portion is trapezoidal round table, and the circumference of the one end of connecting portion away from implanting part is equipped with a plurality of concave parts, and the bottom surface of abutment body is concave and forms first cavity, and first cavity adapts with trapezoidal round table, and the inner wall of first cavity is equipped with convex part, and convex part adapts with the position of one concave part, and the top surface of abutment body is concave and forms second cavity, and through the connecting portion design of implant body as trapezoidal round table, and the first cavity of abutment body bottom adapts with it, and one concave part of connecting portion circumference and the convex part position of first cavity inner wall mutually adapt, provide accurate installation positioning for abutment body, reduce the risk that abutment body loosens, falls off, guarantee the long -term stability of implant body and abutment body connection.

Description

Technical Field

[0001] This utility model relates to the field of oral implant technology, and in particular to an assembly structure for an implant and abutment, and a dental implant. Background Technology

[0002] With the development of dental implant technology, dental implants have become the preferred treatment option for patients with missing teeth or damaged teeth. However, factors such as the duration of tooth loss, trauma, infection, and aging often lead to alveolar bone resorption or defects, which increases the difficulty of implant treatment.

[0003] Previously, it was often necessary to perform corresponding oral bone augmentation surgery to obtain sufficient bone height or width for the implantation site before simultaneously or in stages inserting conventional implants to meet the patient's functional requirements. However, these augmentation surgeries not only brought greater trauma to the patient but also increased their time and financial costs. In particular, for implantation surgery in the mandibular anterior teeth, the small gaps in the edentulous space limited the placement of conventional implants.

[0004] For patients with insufficient bone height, width, and edentulous space, short implants and narrow-diameter implants have been used in recent years for implant restoration, providing a minimally invasive and convenient solution to their tooth loss problems. However, current short and narrow-diameter implants have many mechanical connection issues, causing inconvenience for patients. Utility Model Content

[0005] In view of the above situation, it is necessary to provide an assembly structure for the implant and abutment and a dental implant to address the mechanical connection problems of short implants and narrow-diameter implants in the existing technology.

[0006] An assembly structure for an implant and abutment includes an implant body and an abutment body detachably connected to the implant body. The implant body includes an implantation portion and a connecting portion arranged from bottom to top. The implantation portion is for implantation into the alveolar bone. The connecting portion is a trapezoidal frustum. The periphery of the end of the connecting portion away from the implantation portion is provided with a plurality of recesses. The bottom surface of the abutment body is concave to form a first cavity. The first cavity is adapted to the trapezoidal frustum. The inner wall of the first cavity is provided with a protrusion. The protrusion is adapted to the position of one of the recesses. The top surface of the abutment body is concave to form a second cavity. The second cavity is used to accommodate a tooth crown.

[0007] The beneficial effects of this utility model are:

[0008] The implant body's connecting part is designed as a trapezoidal frustum, which is fitted to the first cavity at the bottom of the abutment body. Simultaneously, a recessed portion on the periphery of the connecting part and a convex portion on the inner wall of the first cavity are mutually fitted. This structural design is similar to a mortise and tenon joint. During installation, the convex portion can accurately engage with the recessed portion, providing precise installation positioning for the abutment body. This allows the abutment body to be quickly and accurately installed on the implant body, reducing installation time and operational difficulty, and improving the efficiency of implant restoration. The convex-concave fit structure greatly increases the friction and mechanical interlocking force between the implant body and the abutment body. Compared to traditional smooth connection methods, this design can better resist various complex mechanical forces in the oral cavity, such as chewing forces and biting forces, reducing the risk of abutment body loosening or falling off, and ensuring the long-term stability of the connection between the implant body and the abutment body.

[0009] Furthermore, the Morse taper of both the trapezoidal frustum and the first cavity is 2.8° to 3.2°.

[0010] Furthermore, a first thread and a second thread are respectively provided along the outer wall of the implant portion. The first thread is located at the end of the second thread away from the connecting portion. The first thread is used to fix with the alveolar bone, and the second thread is used to enhance the self-tapping property of the implant body.

[0011] Furthermore, axial grooves are formed on both sides of the second thread.

[0012] Furthermore, the second cavity is hexagonal, and the inner wall of the second cavity is provided with a third thread.

[0013] Furthermore, the first cavity and the second cavity are spaced apart.

[0014] This utility model also provides a dental implant, including the assembly structure of the implant and abutment as described above. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the assembly structure of the implant and abutment of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the planting body of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the base body of this utility model. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the structure of the base body of this utility model. Figure 2 .

[0019] In the figure: 1. Implant body; 11. Implant part; 111. First thread; 112. Second thread; 1121. Axial groove; 12. Connecting part; 121. Recess; 2. Abutment body; 21. First cavity; 211. Protrusion; 22. Second cavity. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Furthermore, the various embodiments of the invention, the features within those embodiments, and the features of the embodiments may be freely combined without obvious conflict or contradiction.

[0023] An assembly structure for an implant and abutment, such as Figure 1 As shown, it includes a planting body 1 and a base body 2 that is detachably connected to the planting body 1.

[0024] Specifically, such as Figures 1 to 4As shown, the implant body 1 includes an implantation portion 11 and a connecting portion 12 arranged from bottom to top. The implantation portion 11 is used for implantation into the alveolar bone. A first thread 111 and a second thread 112 are respectively provided along the outer wall of the implantation portion 11. The first thread 111 is located at the end of the second thread 112 away from the connecting portion. Axial grooves 1121 are formed on opposite sides of the second thread 112. The first thread 111 is used for fixation with the alveolar bone, and the second thread 112 is used to enhance the self-tapping ability of the implant body. The implant body 1 consists of the implantation portion 11 and the connecting portion 12, arranged from bottom to top. The implantation portion 11 undertakes the task of implantation into the alveolar bone and is the key part that directly contacts and fixes the alveolar bone. The first thread 111 is located at the end of the outer wall of the implantation portion 11 away from the connecting portion, and its main function is to achieve fixation with the alveolar bone. After the implant body 1 is implanted into the alveolar bone, the first thread 111 provides stable retention force through tight engagement with the alveolar bone, preventing the implant body 1 from loosening or shifting within the alveolar bone and ensuring the implant can function stably and long-term in the oral environment. The second thread 112 is located on the side of the first thread 111 near the connection portion, with axial grooves 1121 on opposite sides. The main function of the second thread 112 is to enhance the self-tapping ability of the implant body 1. During the implantation process, the clamping tool holds the recess 121, causing the second thread 112 of the implant body 1 to gradually move into the alveolar bone. The special design of the second thread 112 makes it easier for the implant to cut into the alveolar bone tissue, reducing resistance during implantation and making the implantation process smoother. The presence of the axial grooves 1121 further enhances the fixation effect with the alveolar bone tissue, effectively preventing reverse rotation of the implant body 1 and helping to more firmly fix the implant body 1 in the predetermined position.

[0025] Specifically, the connecting part 12 is a trapezoidal frustum. Multiple recesses 121 are provided on the periphery of the end of the connecting part 12 furthest from the implant part 11. The bottom surface of the abutment body 2 is concave to form a first cavity 21, which is adapted to the trapezoidal frustum. A protrusion 211 is provided on the inner wall of the first cavity 21, and the protrusion 211 is positioned to match one of its recesses 121. The top surface of the abutment body 2 is concave to form a second cavity 22, which is hexagonal. The second cavity 22 is used to accommodate the crown. A third thread (not shown) is provided on the inner wall of the second cavity 22 for fixing the crown. The first cavity 21 and the second cavity 22 are spaced apart. The engagement of the protrusion 211 with its recess 121 ensures a tight connection between the connecting part 12 and the abutment body 2, preventing loosening. The space between the first cavity 21 and the second cavity 22 helps to disperse the stress generated during occlusion, reducing damage to the implant. The second cavity 22 can effectively prevent the crown from rotating on the abutment body 2 through the third thread, ensuring the stability and function of the crown. This design makes the installation and removal of the abutment body 2 and the crown more convenient, and facilitates clinical operation and maintenance.

[0026] Specifically, both the connecting part 12 and the first cavity 21 have a Morse taper of 3.0°. Based on the self-locking property of the taper, when the trapezoidal frustum and the Morse taper-equipped components of the first cavity 21 are engaged, they fit tightly together due to the taper, achieving a secure connection under a certain axial force, while also allowing for easy disassembly. This tight fit creates an isolation barrier against bacteria, preventing bacterial penetration.

[0027] In this invention, the connecting part 12 of the implant body 1 is designed as a trapezoidal frustum, which is adapted to the first cavity 21 at the bottom of the abutment body 2. At the same time, the positions of a recess 121 on the periphery of the connecting part 12 and the protrusion 211 on the inner wall of the first cavity 21 are mutually adapted. This structural design is similar to a mortise and tenon structure. During the installation process, the protrusion 211 can accurately engage with the recess 121, providing precise installation positioning for the abutment body 2. This allows the abutment body 2 to be installed on the implant body 1 quickly and accurately, reducing installation time and operational difficulty, and improving the efficiency of implant restoration. The concave-convex structure greatly increases the friction and mechanical interlocking force between the implant body 1 and the abutment body 2. Compared with the traditional smooth connection method, this design can better resist various complex mechanical forces in the oral cavity, such as chewing force and biting force, reducing the risk of the abutment body 2 loosening or falling off, and ensuring the long-term stability of the connection between the implant body 1 and the abutment body 2.

[0028] This utility model also provides a dental implant, including the assembly structure of the implant and abutment as described above.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The embodiments described above are merely illustrative of the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An assembly structure of an implant and an abutment, characterized by: The device includes an implant body and an abutment body detachably connected to the implant body. The implant body includes an implantation portion and a connecting portion arranged from bottom to top. The implantation portion is used for implantation into the alveolar bone. The connecting portion is a trapezoidal frustum. The periphery of the end of the connecting portion away from the implantation portion is provided with several recesses. The bottom surface of the abutment body is concave to form a first cavity. The first cavity is adapted to the trapezoidal frustum. The inner wall of the first cavity is provided with a protrusion. The position of the protrusion is adapted to one of the recesses. The top surface of the abutment body is concave to form a second cavity. The second cavity is used to accommodate a tooth crown.

2. The implant and abutment assembly structure according to claim 1, characterized in that: The Morse taper of both the trapezoidal frustum and the first cavity is 2.8° to 3.2°.

3. The assembly structure of the implant and abutment according to claim 1, characterized in that: A first thread and a second thread are respectively provided along the outer wall of the implant portion. The first thread is located at the end of the second thread away from the connecting portion. The first thread is used to fix with the alveolar bone, and the second thread is used to enhance the self-tapping property of the implant body.

4. The assembly structure of the implant and abutment according to claim 3, characterized in that: Axial grooves are formed on both sides of the second thread.

5. The assembly structure of the implant and abutment according to claim 1, characterized in that: The second cavity is a hexagon, and the inner wall of the second cavity is provided with a third thread.

6. The assembly structure of the implant and abutment according to claim 1, characterized in that: The first cavity and the second cavity form a gap.

7. A dental implant, characterized in that: The assembly structure includes the implant and abutment as described in any one of claims 1-6.

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