Oral soft tissue level implant

Abstract

The application relates to the field of medical devices, in particular to an oral soft tissue horizontal implant which comprises an implant neck, an implant crown and an implant root, the implant neck is smooth and cylindrical, the top of the implant neck is provided with a mounting groove, the bottom of the mounting groove is provided with a mounting hole, and the bottom of the mounting hole is provided with a threaded blind hole; the implant crown is formed at the bottom of the implant neck and is conical and cylindrical, the outer circumferential surface of the implant crown is provided with an upper thread; the implant root is formed below the implant crown, is conical and cylindrical, the taper of the implant root is larger than that of the implant crown, and the outer circumferential surface of the implant root is provided with a lower thread which is connected with the upper thread and has the same screw direction and a deeper groove depth. The application has the technical effects of facilitating daily cleaning and maintenance of patients, facilitating connection of an abutment, enhancing the stability of connection with bone tissue, facilitating implantation of the implant and the like.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a horizontal implant for oral soft tissue. Background Technology

[0002] In the field of oral medicine, dental implant technology has made significant progress in recent years. For patients with missing teeth, dental implants have provided an effective solution for restoring oral function and aesthetics. Dental implants have a relatively simple structure, generally consisting of a single cylindrical body with simple threads on the surface for integration with bone tissue. During implantation, these implants rely primarily on their shape and threads for mechanical interlocking with the bone tissue to achieve fixation.

[0003] Existing dental implants have significant drawbacks. The threads on the outer periphery of the implant neck make it less smooth. Since the implant neck is the area where the implant directly contacts the oral soft tissue, bacterial plaque tends to attach and grow on rough, irregular surfaces. Therefore, the implant neck is prone to bacterial growth and is difficult to clean and maintain. Utility Model Content

[0004] The purpose of this application is to overcome the above-mentioned technical problems and provide a horizontal implant for oral soft tissue.

[0005] A horizontal implant for oral soft tissue, comprising: The implant neck is a smooth cylinder with a mounting groove at the top and a mounting hole at the bottom. The mounting hole has a threaded blind hole at the bottom. The implant crown, formed at the bottom of the implant neck and in a conical shape, has upper threads on its outer peripheral surface. The implant root is formed below the implant crown. The implant root is conical and the taper of the implant root is greater than that of the implant crown. The outer circumferential surface of the implant root is provided with a lower thread that connects with the upper thread and has the same helical direction. The groove depth of the lower thread is deeper than that of the upper thread.

[0006] By adopting the above solution, since the implant neck is the area where the implant directly contacts the oral soft tissue, bacteria easily grow here. Bacterial plaque tends to attach and grow on rough and irregular surfaces. By setting the implant neck to a smooth cylindrical shape, it is easier for patients to clean and maintain it daily. The mounting groove is used to connect the abutment, and its inner wall is set as a conical surface to evenly distribute the pressure on the abutment to the periphery of the implant. Since the upper part of the implant contacts the hard cortical bone, the upper thread is used to disperse long-term stress. The lower part of the implant mainly contacts the relatively loose and porous cancellous bone inside the jawbone. The groove depth of the lower thread is deeper than that of the upper thread to ensure that the lower thread can accommodate more bone fragments and at the same time improve the gripping force of the lower thread.

[0007] In one embodiment, the outer peripheral surfaces of the implant crown and implant root are provided with cutting grooves, and the side of the cutting grooves forms a cutting edge with the outer peripheral surfaces of the implant crown and implant root.

[0008] By adopting the above scheme, during the rotation of the implant, the cutting edge will cut the bone tissue to produce bone chips. The bone chips cut off by the cutting edge will be contained in the cutting groove. The cutting groove allows the implant to contain more bone chips, which can promote new bone formation and accelerate osseointegration.

[0009] In one embodiment, the cutting groove extends spirally from the bottom of the implant root to the top of the implant crown, and the spiral direction of the cutting groove is the same as that of the upper thread.

[0010] By adopting the above method, during the rotation of the implant, bone fragments will move from the bottom of the implant root to the top of the implant crown along the direction of the cutting groove, which makes it easier for the bone fragments to be distributed throughout the cutting groove and makes the distribution of bone fragments more uniform.

[0011] In one embodiment, the cutting groove gradually increases in width as it extends upward from the bottom of the implant root.

[0012] By adopting the above scheme, the cutting groove near the bottom of the implant root is used to transport bone fragments, and the cutting groove near the top of the implant crown provides more ample space to accommodate bone fragments.

[0013] In one embodiment, the bottom surface of the cutting groove is wavy.

[0014] By adopting the above scheme, multiple arc-shaped grooves will be formed at the bottom of the cutting groove. Bone fragments are easily confined within the arc-shaped grooves, preventing bone fragments at the top from accumulating at the bottom under the action of gravity. At the same time, after the bone tissue recovers, the arc-shaped grooves are filled with bone tissue, and the implant is restricted by the bone tissue in the vertical direction, thereby enhancing the stability of the connection between the bone tissue and the implant after recovery.

[0015] In one embodiment, the cutting groove includes a steep arc surface and a gentle arc surface, the steep arc surface facing the insertion direction of the implant, and the gentle arc surface facing away from the insertion direction of the implant. The steep arc surface and the gentle arc surface form the two sides of the cutting groove, and the steep arc surface forms a cutting edge with the outer peripheral surface of the crown and root of the implant.

[0016] By adopting the above scheme, the extension direction of the steep arc surface is close to the force direction of the cutting edge, making it easier for the cutting edge to cut bone tissue. Since both sides of the cutting groove are relatively sharp during the rotation of the implant, some bone chips located in the thread gap will be excessively squeezed or crushed at the groove opening. The gentle arc surface makes the groove opening of the cutting groove smoother, ensuring the integrity of the bone chips.

[0017] In one embodiment, the cutting groove has a stop surface at its extended end near the top of the implant crown.

[0018] By adopting the above method, the stop surface can compact the bone fragments in the implant and prevent them from being exposed from the top of the cutting groove.

[0019] In one embodiment, the stop surface is provided with a pressure relief channel, which extends from the stop surface into the mounting groove and passes through the implant neck.

[0020] By adopting the above approach, the implant will compress the blood and tissue fluid in the bone socket, forming a strong hydraulic pressure, which will hinder implantation and damage bone cells. The pressure relief channel is used to drain the blood and tissue fluid, reduce implantation resistance, and protect the vitality of bone cells.

[0021] In one embodiment, the cutting groove includes a cutting surface and a receiving surface, the axis of the implant is located in the plane of the cutting surface, and the receiving surface is perpendicular to the cutting surface and parallel to the axis of the implant.

[0022] By adopting the above scheme, the cutting surface can push bone chips with a larger area, and the receiving surface prevents bone chips from being crushed at the opening of the cutting groove.

[0023] In one embodiment, the cutting surface is provided with a plurality of chip-receiving holes arranged in an array along the length of the implant.

[0024] By adopting the above scheme, during the rotation of the implant, bone chips are pushed by the cutting surface and enter the chip cavity. The restored bone tissue fills the chip cavity, thereby limiting the implant. When the implant is twisted back, the shaped bone tissue attaches to the chip cavity to provide tension, preventing the implant from loosening due to rotation, and making the connection between the implant and the bone tissue tighter.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Since the implant neck is the area where the implant directly contacts the oral soft tissue, bacteria easily grow here. Bacterial plaque tends to attach and grow on rough, irregular surfaces. By making the implant neck a smooth cylinder, it is easier for patients to clean and maintain it daily. The mounting groove is used to connect the abutment. Its inner wall is made into a conical surface to evenly distribute the pressure on the abutment to the periphery of the implant. Since the upper part of the implant contacts the hard cortical bone, the upper thread is used to disperse long-term stress. The lower part of the implant mainly contacts the relatively loose and porous cancellous bone inside the jawbone. The groove depth of the lower thread is deeper than that of the upper thread to ensure that the lower thread can accommodate more bone fragments and improve the gripping force of the lower thread.

[0026] 2. By using a spiral-shaped cutting groove, bone fragments move from the bottom of the implant root to the top of the implant crown along the direction of the groove's extension during implant rotation. This facilitates the distribution of bone fragments throughout the cutting groove, resulting in a more uniform distribution. This is achieved by setting the bottom surface of the cutting groove to... The wavy, multi-segmented grooves at the bottom of the cutting groove easily confine bone fragments within these grooves, preventing bone fragments at the top from accumulating at the bottom under gravity. Simultaneously, after bone tissue recovery, the grooves are filled with bone tissue, and the implant is vertically positioned by the bone tissue, thereby enhancing the stability of the connection between the bone tissue and the implant after recovery.

[0027] 3. By designing the cutting surface and the receiving surface, the cutting surface can push bone chips over a larger area, while the receiving surface prevents bone chips from being crushed at the opening of the cutting groove. By setting chip-receiving holes on the cutting surface, bone chips are pushed into the chip-receiving holes during implant rotation. The recovered bone tissue fills the chip-receiving holes, thereby limiting the implant. When the implant is twisted back, the shaped bone tissue adheres to the chip-receiving holes to provide tension, preventing the implant from loosening due to rotation and making the connection between the implant and the bone tissue tighter. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a horizontal implant for oral soft tissue provided in the first embodiment of this application.

[0029] Figure 2 This is a cross-sectional view of a horizontal implant for oral soft tissue provided in the first embodiment of this application.

[0030] Figure 3 This is a longitudinal cross-sectional view of the cutting groove in the first embodiment of this application.

[0031] Figure 4 This is a cross-sectional view of the cutting groove in the first embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the structure of a horizontal implant for oral soft tissue provided in the second embodiment of this application.

[0033] Figure 6 This is a cross-sectional view of the cutting groove in the second embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Implant neck; 11. Mounting groove; 12. Mounting hole; 13. Threaded blind hole; 2. Implant crown; 21. Upper thread; 3. Implant root; 31. Lower thread; 4. Cutting groove; 41. Cutting edge; 43. Steep arc surface; 44. Gentle arc surface; 45. Stop surface; 451. Pressure relief channel; 46. Cutting surface; 461. Chip hole; 47. Receiving surface. Detailed Implementation

[0035] Therefore, it is necessary to provide a dental implant that can prevent bacteria from growing in the neck.

[0036] Example 1 Please see Figure 1-2 The oral implant provided in this application includes an implant neck 1, an implant crown 2, and an implant root 3. The implant crown 2 is formed at the bottom of the implant neck 1, and the implant root 3 is formed below the implant crown 2. The parts cooperate with each other to achieve better implantation results, improve the stability of the implant-bone integration, and facilitate cleaning and maintenance.

[0037] Specifically, the implant neck 1 is a smooth cylinder. Since the implant neck 1 is the area in direct contact with the oral soft tissue, bacterial plaque tends to adhere and grow on rough, irregular surfaces. Designing it as a smooth cylinder facilitates daily cleaning and maintenance for patients. A mounting groove 11 is located at the top of the neck, used to connect the abutment. Its inner wall is conical, a design that facilitates a tight connection between the abutment and the implant neck 1. The taper of the mounting groove 11 is 7° to 8°, allowing the occlusal force on the abutment to be transmitted and distributed to a large area of ​​bone tissue around the implant. A mounting hole 12 is located at the bottom of the mounting groove 11. The mounting hole 12 has a quincunx cross-section, but other polygonal shapes are also possible, facilitating the use of tools to tighten the implant. A threaded blind hole 13 is located at the bottom of the mounting hole 12, used for fixing the abutment.

[0038] The implant crown 2 is conical and formed at the bottom of the implant neck 1. The outer circumferential surface of the implant crown 2 has an upper thread 21, which is mainly used for close contact with bone tissue and plays a shaping role. The implant crown 2 needs to fit tightly with the bone tissue to ensure implant stability. The implant root 3 is also conical, with a greater taper than the implant crown 2. The taper of the implant crown 2 can be 1.5° to 2.5°, and the taper of the implant root 3 can be 3° to 5°. The tip of the implant root 3 is rounded, making it smoother. Once the root tip approaches or penetrates the cortical bone, nasal floor, or maxillary sinus floor, it can reduce damage to surrounding tissues and minimize stress concentration at the root apex and bone damage during implantation. The outer peripheral surface of the implant root 3 has a lower thread 31 that connects to the upper thread 21 and has the same helical direction. The groove depth of the lower thread 31 is deeper than that of the upper thread 21, with a groove depth of 0.2-0.3 mm for the lower thread 31 and 0.4-0.6 mm for the upper thread 21. Since the upper part of the implant is in contact with the hard cortical bone, the upper thread 21 is used to distribute long-term stress. The lower part of the implant mainly contacts the relatively loose and porous cancellous bone inside the jawbone. The deeper groove depth of the lower thread 31 than that of the upper thread 21 ensures that the lower thread 31 can accommodate more bone fragments and improve the gripping force of the lower thread 31.

[0039] The outer peripheral surfaces of the implant crown 2 and implant root 3 are provided with cutting grooves 4, which include multiple grooves arranged in a circumferential array. In this application, there are two cutting grooves 4. The sides of the cutting grooves 4 form cutting edges 41 with the outer peripheral surfaces of the implant crown 2 and implant root 3. During the rotation of the implant, the cutting edges 41 cut bone tissue, thereby producing bone fragments. The bone fragments cut by the cutting edges 41 are contained in the cutting grooves 4. The cutting grooves 4 allow the implant to contain more bone fragments, which can promote new bone formation and accelerate osseointegration. The cutting grooves 4 extend spirally from the bottom of the implant root 3 to the top of the implant crown 2, and the spiral direction of the cutting grooves 4 is the same as that of the upper thread 21. During the rotation of the implant, the bone fragments move from the bottom of the implant root to the top of the implant crown along the direction of the cutting grooves 4, which facilitates the distribution of bone fragments throughout the cutting grooves 4 and makes the distribution of bone fragments more uniform.

[0040] Please refer to the following: Figure 3 , Figure 3This is a longitudinal sectional view of the cutting groove in the first embodiment of this application. The cutting groove 4 gradually increases in width as it extends upward from the root of the implant. Because bone fragments are elastic, the bone fragments cut from the implant root 3 will compress the side walls of the cutting groove 4. Since the two sides of the cutting groove 4 are not parallel, the bone fragments will slide towards the open areas, thereby increasing the movement of the bone fragments. Therefore, the cutting groove 4 near the bottom of the implant root 3 is used to transport bone fragments, while the cutting groove 4 near the top of the implant crown 2 provides more ample space for the bone fragments. The bottom surface of the cutting groove 4 is wavy or has other continuous alternating concave-convex undulating shapes. Multiple arc-shaped grooves are formed at the bottom of the cutting groove 4, which easily confine the bone fragments within these grooves, preventing the bone fragments at the top from accumulating towards the bottom under gravity. Simultaneously, after bone tissue recovery, the arc-shaped grooves are filled with bone tissue, and the implant is vertically positioned by the bone tissue, thereby enhancing the stability of the connection between the bone tissue and the implant after recovery.

[0041] Please refer to the following: Figure 4 , Figure 4 This is a cross-sectional view of the cutting groove according to the first embodiment of this application. In this application, the cutting groove 4 includes a steep arc surface 43 and a gentle arc surface 44. The steep arc surface 43 faces the insertion direction of the implant, and the gentle arc surface 44 faces away from the insertion direction of the implant. The steep arc surface 43 and the gentle arc surface 44 form the two sides of the cutting groove 4. The steep arc surface 43 forms a cutting edge 41 with the outer peripheral surface of the implant crown 2 and the implant root 3. The extension direction of the steep arc surface 43 is close to the force application direction of the cutting edge 41, making it easier for the cutting edge 41 to cut bone tissue. Since both sides of the groove opening of the cutting groove 4 are relatively sharp during the rotation of the implant, some bone fragments located in the thread gap will be excessively squeezed or crushed at the groove opening of the cutting groove 4. The gentle arc surface 44 makes the groove opening of the cutting groove 4 smoother, ensuring the integrity of the bone fragments. The extended end of the cutting groove 4 near the top of the implant crown 2 is provided with a stop surface 45 perpendicular to the extension direction of the cutting groove 4. The stop surface 45 can compact the bone fragments in the implant and prevent them from being exposed from the top of the cutting groove 4.

[0042] The stop surface 45 is provided with a pressure relief channel 451, which extends into the mounting groove 11. Because the implant will compress the blood and tissue fluid in the bone socket, forming a strong hydraulic pressure, this will hinder implantation and damage bone cells. The pressure relief channel 451 is used to drain the blood and tissue fluid, reduce implantation resistance, and protect the vitality of bone cells.

[0043] The working principle of this embodiment is as follows: By setting the implant neck 1 of this embodiment into a smooth cylindrical shape, the problem of easy bacterial growth and difficulty in cleaning and maintenance of the existing implant neck 1 is solved, making it convenient for patients to clean daily. The unique thread design, including the different settings of the upper thread 21 and the lower thread 31, and the reasonable design of the cutting groove 4, such as spiral extension, different groove width variations, and special groove surface shape, enhances the cutting ability of the implant, making it easier to collect bone fragments and allowing bone fragments to be evenly distributed, promoting new bone formation and osseointegration.

[0044] Example 2 Please see Figure 5-6 , Figure 5 This is a schematic diagram of the structure of a horizontal oral soft tissue implant according to the second embodiment of this application. The structure of this embodiment is basically the same as that of the above embodiment, except that: the cutting groove 4 includes a cutting surface 46 and a receiving surface 47. The cutting surface 46 is an inclined plane and extends toward the screwing direction of the implant. The receiving surface 47 is parallel to the axis of the implant and is perpendicularly connected to the cutting surface 46. The cutting groove 4 can be formed in one step by conventional milling process. The cutting surface 46 can push bone chips with a larger area, and the receiving surface 47 prevents bone chips from being crushed at the groove opening of the cutting groove 4.

[0045] The cutting surface 46 has multiple chip-collecting holes 461 spaced apart along the length of the implant. The opening end of the chip-collecting hole 461 faces the screwing direction of the implant. The chip-collecting hole 461 can be elongated to facilitate the collection of bone fragments. During the rotation of the implant, bone fragments are pushed by the cutting surface 46 and enter the chip-collecting hole 461. The recovered bone tissue fills the chip-collecting hole 461, thereby limiting the position of the implant. When the implant is screwed back, the formed bone tissue adheres to the chip-collecting hole 461 to provide tension, preventing the implant from loosening due to rotation and making the connection between the implant and the bone tissue tighter.

[0046] The working principle of this embodiment is that, through the rotation of the implant, the cut bone fragments are collected into the chip-receiving hole 461 during the rotation process. During the recovery process, the bone tissue will grow in the direction of the bone fragments, and eventually the bone tissue will fill the chip-receiving hole 461, thereby forming a mortise and tenon-like structure, which increases the mechanical locking force between the implant and the bone tissue, thus making the connection between the implant and the bone tissue more stable.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A horizontal implant for oral soft tissue, characterized in that, include: The implant neck (1) is a smooth cylinder. The top of the neck is provided with an installation groove (11), the bottom of the installation groove (11) is provided with an installation hole (12), and the bottom of the installation hole (12) is provided with a threaded blind hole (13). The implant crown (2) is formed at the bottom of the implant neck (1) and is conical in shape. The outer peripheral surface of the implant crown (2) is provided with an upper thread (21). The implant root (3) is formed below the implant crown (2). The implant root (3) is conical and the taper of the implant root (3) is greater than that of the implant crown (2). The outer peripheral surface of the implant root (3) is provided with a lower thread (31) that connects with the upper thread (21) and has the same spiral direction. The groove depth of the lower thread (31) is deeper than that of the upper thread (21).

2. The oral soft tissue level implant according to claim 1, characterized in that: The outer peripheral surfaces of the implant crown (2) and implant root (3) are provided with cutting grooves (4), and the side of the cutting grooves (4) forms a cutting edge (41) with the outer peripheral surfaces of the implant crown (2) and implant root (3).

3. A horizontal implant for oral soft tissue according to claim 2, characterized in that: The cutting groove (4) extends spirally from the bottom of the root of the implant (3) to the top of the crown of the implant (2), and the spiral direction of the cutting groove (4) is the same as that of the upper thread (21).

4. A horizontal implant for oral soft tissue as described in claim 3, characterized in that: The cutting groove (4) gradually increases in width as it extends upward from the bottom of the implant root (3).

5. A horizontal implant for oral soft tissue as described in claim 3, characterized in that: The bottom surface of the cutting groove (4) is wavy.

6. A horizontal implant for oral soft tissue according to claim 3, characterized in that: The cutting groove (4) includes a steep arc surface (43) and a gentle arc surface (44). The steep arc surface (43) faces the insertion direction of the implant, and the gentle arc surface (44) faces away from the insertion direction of the implant. The steep arc surface (43) and the gentle arc surface (44) form the two sides of the cutting groove (4). The steep arc surface (43) forms a cutting edge (41) with the outer peripheral surface of the crown (2) and root (3) of the implant.

7. A horizontal implant for oral soft tissue according to claim 3, characterized in that: The cutting groove (4) has a stop surface (45) at the extended end near the top of the crown (2) of the implant.

8. A horizontal implant for oral soft tissue according to claim 7, characterized in that: The stop surface (45) is provided with a pressure relief channel (451), which extends from the stop surface (45) into the mounting groove (11) and passes through the implant neck (1).

9. A horizontal implant for oral soft tissue according to claim 2, characterized in that: The cutting groove (4) includes a cutting surface (46) and a receiving surface (47). The axis of the implant is located in the plane of the cutting surface (46). The receiving surface (47) is perpendicular to the cutting surface (46) and parallel to the axis of the implant.

10. A horizontal implant for oral soft tissue according to claim 9, characterized in that: The cutting surface (46) is provided with a plurality of chip-receiving holes (461) arranged in an array along the length of the implant.

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