A straight abutment for precise positioning of dental implant restorations

Abstract

The utility model discloses a straight base station for precision positioning of dental implant prosthesis, concretely relates to straight base station technical field, including middle base station, upper base station and lower base station, and upper base station and lower base station are located at the top and bottom of middle base station respectively, the inside movable setting of middle base station has connecting column, and the top of connecting column passes through middle base station and is fixedly connected with upper base station, is provided with adjusting assembly on connecting column, and adjusting assembly includes second screw rod, two limit rods and handle. The utility model discloses can drive second screw rod rotation through rotating handle, and second screw rod can drive connecting column to move upwards, thereby drive upper base station to move upwards, and two limit boards can limit the distance of upper base station and move upwards, and the handle can drive upper base station to move downwards in the same way, and the distance between middle base station and upper base station is adjusted according to demand, and the operation is simple, the height of upper base station is conveniently adjusted, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of straight abutment technology, and more specifically, to a straight abutment for precise positioning of dental implant restorations. Background Technology

[0002] Straight abutments are a commonly used type of abutment in dental implant restorations. They are cylindrical in shape, maintaining a near-straight line from the implant attachment to the crown attachment, with their axis aligned with the implant axis. The direction of the abutment and the retention screws are also the same. They are typically made of biocompatible materials such as titanium and titanium alloys, and zirconium oxide. These materials coexist peacefully with human tissue, reducing the likelihood of rejection and inflammation, and ensuring the long-term stable function of the implant restoration in the oral cavity.

[0003] A search revealed that Chinese patent CN221672075U discloses a straight abutment for a dental implant made of molybdenum-rhenium alloy. This invention can effectively connect the various parts of the dental implant, facilitating adjustments during implantation and ensuring the implant's firmness and durability. It also minimizes interference with the bone structure, allowing for more prominent integration with the natural shape of the bone and achieving osseointegration. Furthermore, it allows clinicians to arbitrarily adjust and reshape the abutment according to the long axis of adjacent teeth to create the desired angle abutment.

[0004] The aforementioned straight abutment includes an upper abutment structure, a middle abutment connecting structure, and a lower abutment structure. However, it is inconvenient to adjust the height of the upper abutment structure during use. In patients with high alveolar bone or thick gingiva, an excessively short upper abutment structure may prevent the restored crown from fitting tightly to the gingiva, resulting in gaps. This not only affects aesthetics but also easily leads to food debris accumulation, bacterial growth, and inflammation, ultimately affecting the long-term effectiveness and stability of the implant restoration. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a straight abutment for precise positioning of dental implant restorations, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a straight abutment for precise positioning of dental implant restorations, comprising a middle abutment, an upper abutment, and a lower abutment, wherein the upper abutment and the lower abutment are located at the top and bottom of the middle abutment, respectively. A connecting post is movably disposed inside the middle abutment, and the top end of the connecting post passes through the middle abutment and is fixedly connected to the upper abutment. An adjustment component is disposed on the connecting post, the adjustment component comprising a second lead screw, two limiting rods, and a handle. The bottom end of the second lead screw is movably connected to the middle abutment via a bearing, and the second lead screw is threadedly connected to the connecting post. The bottom ends of the two limiting rods are fixedly connected to the middle abutment, and the top ends of the two limiting rods pass through the connecting post. The top end of the handle is fixedly connected to the second lead screw, and a friction ring is movably sleeved on the handle, and the top end of the friction ring is fixedly connected to the middle abutment.

[0007] Furthermore, the top ends of both limiting rods are fixedly connected to limiting plates, and the outer sides of both limiting plates are in contact with the connecting column.

[0008] It can be seen that the above technical solution limits the distance the upper platform can move upward.

[0009] Furthermore, a collar is fixedly connected to the bottom end of the middle base, and a fixed sleeve is movably disposed inside the collar, with the bottom end of the fixed sleeve fixedly connected to the lower base.

[0010] Furthermore, a washer is movably provided at the bottom of the collar, and the washer is fitted onto the fixed sleeve.

[0011] It can be seen that the above technical solution aims to improve the stability between the lower base and the collar.

[0012] Furthermore, the top of the lower base is fixedly connected to multiple receiving sleeves, and each of the multiple receiving sleeves has a positioning block movably disposed inside, and the top of each of the multiple positioning blocks is fixedly connected to the middle base.

[0013] It can be seen that the above technical solutions are designed to facilitate precise positioning of the central base station.

[0014] Furthermore, a connecting assembly is provided between the fixing sleeve and the collar, the connecting assembly including a first lead screw and two threaded sleeves.

[0015] Furthermore, one end of the first lead screw passes through a collar and a fixed sleeve respectively, and both threaded sleeves are movably sleeved on the first lead screw, with the opposite sides of the two first lead screws in contact with the collar.

[0016] It can be seen that the above technical solution facilitates the connection between the central base and the lower base.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model can drive the second lead screw to rotate by rotating the handle. The second lead screw can drive the connecting column to move upward, thereby driving the upper base to move upward. The two limiting plates can limit the upward movement distance of the upper base. Similarly, reversing the handle can drive the upper base to move downward. The distance between the middle base and the upper base can be adjusted according to the needs. The operation is simple, the height of the upper base can be easily adjusted, and the use effect is good.

[0019] 2. This utility model places the middle base on top of the lower base, with the collar fitted onto the fixed sleeve. Simultaneously, three positioning blocks are inserted into three receiving sleeves, thereby enabling precise positioning of the middle base. The first lead screw passes through the collar and the fixed sleeve, and the collar is fixed to the fixed sleeve through the first lead screw and two threaded sleeves, thus fixing the middle base to the lower base. Similarly, the middle base can be disassembled and replaced. This modular structure is convenient to use. Attached Figure Description

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a bottom view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the central base and positioning block of this utility model;

[0024] Figure 4 This is a cross-sectional view of the central base and a schematic diagram of the assembly structure of the adjustment components of this utility model;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the lower base and connecting components of this utility model.

[0026] In the diagram: 1. Middle base; 2. Upper base; 3. Collar; 4. Lower base; 5. Connecting assembly; 6. Gasket; 7. Connecting column; 8. Adjusting assembly; 9. Friction ring; 10. Positioning block; 11. Receiving sleeve; 12. Fixing sleeve; 501. First lead screw; 502. Threaded sleeve; 801. Second lead screw; 802. Limiting rod; 803. Handle; 804. Limiting plate. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Refer to the instruction manual appendix Figure 1-5 This embodiment describes a straight abutment for precise positioning of a dental implant prosthesis, comprising a middle abutment 1, an upper abutment 2, and a lower abutment 4. The upper abutment 2 and the lower abutment 4 are located at the top and bottom of the middle abutment 1, respectively. A connecting post 7 is movably disposed inside the middle abutment 1, and the top end of the connecting post 7 passes through the middle abutment 1 and is fixedly connected to the upper abutment 2. An adjustment component 8 is disposed on the connecting post 7. The adjustment component 8 includes a second lead screw 801, two limiting rods 802, and a handle 803. The bottom end of the second lead screw 801 is movably connected to the middle abutment 1 via a bearing, and the second lead screw 801 is threadedly connected to the connecting post 7. The bottom ends of the two limiting rods 802 are fixedly connected to the middle abutment 1, and the top ends of the two limiting rods 802 pass through the connecting post 7. The top end of the handle 803 is fixedly connected to the second lead screw 801, and a friction ring 9 is movably sleeved on the handle 803, and the top end of the friction ring 9 is fixedly connected to the middle abutment 1.

[0029] Furthermore, the top ends of both limiting rods 802 are fixedly connected to limiting plates 804, and the outer sides of both limiting plates 804 are in contact with the connecting column 7.

[0030] Furthermore, a collar 3 is fixedly connected to the bottom of the middle base 1. A fixed sleeve 12 is movably arranged inside the collar 3, and the bottom end of the fixed sleeve 12 is fixedly connected to the lower base 4. A gasket 6 is movably arranged at the bottom of the collar 3, and the gasket 6 is sleeved on the fixed sleeve 12. A plurality of receiving sleeves 11 are fixedly connected to the top of the lower base 4. A positioning block 10 is movably arranged inside each of the plurality of receiving sleeves 11, and the top ends of the plurality of positioning blocks 10 are fixedly connected to the middle base 1. A connecting component 5 is provided between the fixed sleeve 12 and the collar 3. The connecting component 5 includes a first lead screw 501 and two threaded sleeves 502. One end of the first lead screw 501 passes through the collar 3 and the fixed sleeve 12 respectively. The two threaded sleeves 502 are movably sleeved on the first lead screw 501, and the opposite sides of the two first lead screws 501 are in contact with the collar 3.

[0031] The lower base 4 is fixed to the jaw by inserting bolts into the middle of the lower base 4. The middle base 1 is placed on top of the lower base 4, and the collar 3 is fitted onto the fixed sleeve 12. At the same time, three positioning blocks 10 are inserted into three receiving sleeves 11 respectively, so that the middle base 1 can be accurately positioned. The first lead screw 501 passes through the collar 3 and the fixed sleeve 12, and the collar 3 is fixed to the fixed sleeve 12 by the first lead screw 501 and two threaded sleeves 502, so that the middle base 1 is fixed to the lower base 4. The middle base 1 can be disassembled and replaced in the same way. The split structure is convenient to use. At the same time, the gasket 6 can improve the stability between the lower base 4 and the collar 3.

[0032] The usage method of this embodiment is as follows:

[0033] In use, the operator rotates handle 803, which drives the second lead screw 801 to rotate. At the same time, friction ring 9 increases the friction between handle 803 and the middle base 1. Since the second lead screw 801 is threadedly connected to the connecting column 7, and the two limit rods 802 and two limit plates 804 restrict the rotation of the connecting column 7, the second lead screw 801 can drive the connecting column 7 to move upward, thereby driving the upper base 2 to move upward. The two limit plates 804 can limit the upward movement distance of the upper base 2. Similarly, reversing handle 803 can drive the upper base 2 to move downward. The distance between the middle base 1 and the upper base 2 can be adjusted as needed. The operation is simple, the height of the upper base 2 can be easily adjusted, and the effect is good.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures, nor will they be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straight abutment for precise positioning in dental implant restorations, comprising a middle abutment (1), a upper abutment (2), and a lower abutment (4), wherein the upper abutment (2) and the lower abutment (4) are located at the top and bottom of the middle abutment (1), respectively, characterized in that: The middle base (1) is internally provided with a connecting column (7), and the top end of the connecting column (7) passes through the middle base (1) and is fixedly connected to the upper base (2). An adjustment component (8) is provided on the connecting column (7). The adjustment component (8) includes a second lead screw (801), two limit rods (802) and a handle (803). The bottom end of the second lead screw (801) is movably connected to the middle base (1) through a bearing, and the second lead screw (801) is threadedly connected to the connecting column (7). The bottom ends of the two limit rods (802) are fixedly connected to the middle base (1), and the top ends of the two limit rods (802) pass through the connecting column (7). The top end of the handle (803) is fixedly connected to the second lead screw (801). A friction ring (9) is movably sleeved on the handle (803), and the top end of the friction ring (9) is fixedly connected to the middle base (1).

2. The precisely positioned straight abutment for dental implant restorations according to claim 1, characterized in that: The top ends of the two limiting rods (802) are fixedly connected to limiting plates (804), and the outer sides of the two limiting plates (804) are in contact with the connecting column (7).

3. The precisely positioned straight abutment for dental implant restorations according to claim 1, characterized in that: The bottom end of the middle base (1) is fixedly connected to a collar (3), and a fixed sleeve (12) is movably arranged inside the collar (3), and the bottom end of the fixed sleeve (12) is fixedly connected to the lower base (4).

4. The precisely positioned straight abutment for dental implant restorations according to claim 3, characterized in that: The bottom of the collar (3) is movably provided with a gasket (6), and the gasket (6) is sleeved on the fixed sleeve (12).

5. The precisely positioned straight abutment for dental implant restorations according to claim 1, characterized in that: The top of the lower base (4) is fixedly connected to a plurality of receiving sleeves (11), and each of the plurality of receiving sleeves (11) is movably provided with a positioning block (10), and the top of each of the plurality of positioning blocks (10) is fixedly connected to the middle base (1).

6. The precisely positioned straight abutment for dental implant restorations according to claim 3, characterized in that: A connecting assembly (5) is provided between the fixed sleeve (12) and the collar (3), the connecting assembly (5) including a first lead screw (501) and two threaded sleeves (502).

7. The precisely positioned straight abutment for dental implant restorations according to claim 6, characterized in that: One end of the first lead screw (501) passes through the collar (3) and the fixed sleeve (12) respectively. The two threaded sleeves (502) are movably sleeved on the first lead screw (501), and the opposite sides of the two first lead screws (501) are in contact with the collar (3).

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