Early loosening prevention implant structure

By combining the implant body and the anti-rotation body, and using threaded or sliding insertion methods to connect to the alveolar bone, the problem of initial implant loosening is solved, and the stability and osseointegration effect of the implant are improved.

CN224572846UActive Publication Date: 2026-07-31STAPLES (SHANGHAI) MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
STAPLES (SHANGHAI) MEDICAL INSTR CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing dental implants lack stability in the early stages, are prone to loosening, leading to implantation failure and affecting osseointegration and soft tissue health.

Method used

The implant adopts a combined structure of implant body and anti-rotation body. The outer wall of the implant body is provided with a first external thread, and the anti-rotation body is provided in the installation groove. The anti-rotation body is installed along the length of the implant and connects to the alveolar bone through thread or sliding insertion, which increases the bone contact area and forms radial compression to improve stability.

Benefits of technology

It enhances the stability of the implant in the early stages of implantation, reduces shaking and rotation, promotes osseointegration, reduces the risk of soft tissue inflammation, and improves the success rate of implantation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses an early-stage anti-loosening implant structure, relating to the field of oral implant technology. It includes an implant body and an anti-rotation body. A first external thread is formed on the outer wall of the implant body, and a mounting groove is formed at the top of the first external thread on the outer wall of the implant body. The anti-rotation body is disposed within the mounting groove of the implant body, and the anti-rotation body is positioned along the length of the implant body. This application first implants the implant body into the alveolar bone, and then inserts the anti-rotation body into the mounting groove along the length of the implant body. The anti-rotation body connects to the alveolar bone, increasing the bone contact area while simultaneously applying radial compression to the implant body, thereby improving the stability of the implant in the initial implantation stage.
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Description

Technical Field

[0001] This application relates to the field of oral implant technology, and in particular to an early anti-loosening implant structure. Background Technology

[0002] Dental implants are artificial tooth root substitutes, usually made of titanium alloy, which are surgically implanted into the alveolar bone to mimic the structure of natural tooth roots. After osseointegration, they connect the abutment to the crown, restoring chewing function and aesthetics. Their advantages include high stability, no damage to adjacent teeth, long lifespan, and suitability for patients with single or multiple missing teeth.

[0003] Currently, early implant loosening and failure is a common complication in dental implantology, often leading to implant failure, and is frequently related to insufficient initial stability. Insufficient initial stability often results from improper control of the implant socket size, creating significant gaps. These gaps allow the implant to wobble, and in severe cases, even rotate. Insufficient initial stability causes micromovement of the implant during chewing, interfering with bone cell growth and differentiation, hindering osseointegration, and ultimately leading to implant loosening and failure. It can also cause soft tissue inflammation, damage alveolar bone, and increase the difficulty of subsequent treatment. Utility Model Content

[0004] To improve the stability of implants in the early stages of implantation, this application provides an early-stage anti-loosening implant structure.

[0005] This application provides an early-stage anti-loosening implant structure using the following technical solution:

[0006] An early anti-loosening implant structure includes an implant body and an anti-rotation body. A first external thread is formed on the outer wall of the implant body, and an installation groove is formed on the outer wall of the implant body at the top of the first external thread. The anti-rotation body is disposed in the installation groove of the implant body and is disposed along the length direction of the implant body.

[0007] By adopting the above technical solution, the implant body is first implanted into the alveolar bone, and then the anti-rotation body is installed into the mounting slot along the length of the implant body. The anti-rotation body connects the alveolar bone to increase the bone contact area while forming radial compression on the implant body, thereby improving the stability of the implant in the early stage of implantation.

[0008] Preferably, a second external thread is formed on the outer peripheral wall of the anti-rotation body, the mounting groove is a threaded groove, and the anti-rotation body is rotatably disposed in the mounting groove.

[0009] By adopting the above technical solution, when installing the antirotation body, first use a tool to drill a bottom hole in the alveolar bone along the threaded groove on the side of the implant body, and then screw the antirotation body with a second external thread on its outer surface into the threaded groove of the implant body to complete the installation of the antirotation body. The antirotation body adopts a threaded installation method, which further improves the stability of the implant body installation.

[0010] Preferably, a drive groove is formed on the top end face of the anti-rotation body.

[0011] By adopting the above technical solution, a tool is inserted into the drive groove at the top of the anti-rotation body. The tool drives the anti-rotation body to rotate through the drive groove, which makes it easier to screw the anti-rotation body into the thread.

[0012] Preferably, the first external thread and the second external thread have the same thread direction.

[0013] By adopting the above technical solution, the first external thread and the second external thread have the same thread direction, which makes it easier to screw the anti-rotation body into the mounting groove.

[0014] Preferably, the mounting groove is a slot, and the anti-rotation body is slidably inserted into the mounting groove.

[0015] By adopting the above technical solution, when installing the antirotation body, a bottom hole is first drilled in the alveolar bone along the groove on the side of the implant body using a tool. Then, the antirotation body with a smooth outer surface is inserted into the slot of the implant body, which facilitates the installation of the antirotation body.

[0016] Preferably, a pressure groove is formed on the end face of the top of the anti-rotation body.

[0017] By adopting the above technical solution, a tool is inserted into the pressure groove at the top of the anti-rotation body. The tool drives the anti-rotation body to slide through the pressure groove, which facilitates the sliding insertion of the anti-rotation body.

[0018] Preferably, the bottom of the anti-rotation body has a chamfer.

[0019] By adopting the above technical solution, the chamfer at the bottom of the anti-rotation body makes it less likely for the anti-rotation body to interfere with the first external thread during the process of installing the anti-rotation body into the mounting groove, thereby facilitating the smooth installation of the anti-rotation body into the mounting groove.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. Using an anti-rotation body, the implant body is first implanted into the alveolar bone, and then the anti-rotation body is inserted into the mounting slot along the length of the implant body. The anti-rotation body connects the alveolar bone to increase the bone contact area while forming radial compression on the implant body, thereby improving the stability of the implant in the early stage of implantation.

[0022] 2. With the help of the second external thread and the thread groove, when installing the antirotation body, first use a tool to drill a bottom hole in the alveolar bone along the thread groove on the side of the implant body, and then screw the antirotation body with the second external thread on the outer surface into the thread groove of the implant body to complete the installation of the antirotation body. The antirotation body adopts the thread installation method, which further improves the stability of the implant body installation.

[0023] 3. Using the drive groove, insert a tool into the drive groove on the top of the anti-rotation body. The tool will drive the anti-rotation body to rotate through the drive groove, making it easier to screw the anti-rotation body into the thread. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the early anti-loosening implant structure in Embodiment 1 of this application;

[0025] Figure 2 This is a partial structural diagram of the early anti-loosening implant structure in Embodiment 1 of this application;

[0026] Figure 3 This is a partial structural cross-sectional view of the early anti-loosening implant structure in Embodiment 1 of this application;

[0027] Figure 4 This is a partial structural cross-sectional view of the early anti-loosening implant structure in Embodiment 2 of this application.

[0028] Reference numerals: 1. Implant body; 2. Anti-rotation body; 3. First external thread; 4. Mounting groove; 5. Second external thread; 6. Drive groove; 7. Pressing groove; 8. Chamfer. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses an early-stage anti-loosening implant structure.

[0031] Example 1:

[0032] Reference Figure 1 and Figure 2 An early anti-loosening implant structure includes an implant body 1 and an anti-rotation body 2. The outer wall of the implant body 1 is provided with a first external thread 3. The top of the implant body 1 is provided with an installation groove 4 at the first external thread 3. The anti-rotation body 2 can be detachably installed in the installation groove 4 and is distributed along the length direction of the implant body 1.

[0033] In practical applications, the implant body 1 is first implanted into the alveolar bone, and then the anti-rotation body 2 is inserted into the mounting slot 4 along the length of the implant body 1. The addition of the anti-rotation body 2 increases the contact area with the alveolar bone and creates radial compression on the implant body 1. This dual action effectively improves the stability of the implant in the early stages of implantation and reduces problems such as shaking and rotation caused by insufficient initial stability.

[0034] The outer peripheral wall of the anti-rotation body 2 has a second external thread 5, and the mounting groove 4 is a threaded groove, in which the anti-rotation body 2 is rotatably installed. During installation, a threaded bottom hole is first drilled in the alveolar bone along the threaded groove on the side of the implant body 1, and then the anti-rotation body 2 with the second external thread 5 is screwed into the threaded groove. This threaded installation method makes the connection between the anti-rotation body 2 and the implant body 1 and the alveolar bone more secure, further improving the overall installation stability.

[0035] Reference Figure 2 and Figure 3 The anti-rotation body 2 has a drive groove 6 on its top end face. By inserting a tool into the drive groove 6, the anti-rotation body 2 can be rotated, facilitating the screw-in operation and making the installation process more convenient and efficient. The first external thread 3 and the second external thread 5 have the same thread direction. This design makes it easier for the anti-rotation body 2 to be screwed into the mounting groove 4, avoiding installation obstacles caused by different thread directions.

[0036] The outer periphery of the bottom end face of the anti-rotation body 2 is chamfered 8. Since the outer wall of the implant body 1 is provided with the first external thread 3, and the anti-rotation body 2 needs to be installed into the mounting groove 4 located at the top of the first external thread 3 along the length direction of the implant body 1, if the bottom of the anti-rotation body 2 is a right angle or other shape, it is easy to collide or rub against the edge of the first external thread 3 during the installation process, resulting in interference and hindering the smooth installation of the anti-rotation body 2.

[0037] The chamfer 8 at the bottom of the anti-rotation body 2 smooths out the right-angled edge that might otherwise cause interference, allowing the bottom of the anti-rotation body 2 to more smoothly avoid the first external thread 3 when it is installed into the mounting slot 4, reducing contact and obstruction with the first external thread 3. This makes it easier and more accurate for the anti-rotation body 2 to enter the mounting slot 4.

[0038] The implementation principle of an early anti-loosening implant structure in this application embodiment is as follows: First, the implant body 1 is implanted into the alveolar bone. Then, a threaded bottom hole is drilled in the alveolar bone along the threaded groove direction on the side of the implant body 1. Finally, a tool is inserted into the drive groove 6 and the anti-rotation body 2 is rotated and installed into the mounting groove 4. Using the anti-rotation body 2 to connect the alveolar bone increases the bone contact area while forming radial compression on the implant body 1, thereby improving the stability of the implant in the early stage of implantation.

[0039] Example 2:

[0040] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the mounting groove 4 is a slot, the outer surface of the anti-rotation body 2 is smooth, and the anti-rotation body 2 is installed in the mounting groove 4 by sliding insertion, with an interference fit between the anti-rotation body 2 and the mounting groove 4. This design provides a simpler way to install the anti-rotation body 2. During installation, a tool is first used to drill a smooth-walled bottom hole in the alveolar bone along the groove on the side of the implant body 1. Then, the anti-rotation body 2 with its smooth outer surface is directly inserted into the slot of the implant body 1 to complete the installation. Compared with threaded connection, the sliding insertion method eliminates the step of rotating and screwing in, reducing the operation time and complexity during installation, making the installation process more efficient and convenient.

[0041] A circular groove 7 is formed on the top end face of the anti-rotation body 2. This design is compatible with the sliding insertion installation method. When the anti-rotation body 2 needs to be inserted into the slot, the interference fit between the anti-rotation body 2 and the mounting slot 4 creates resistance during insertion. The operator can insert a tool into the groove 7 and apply pressure to it, causing the anti-rotation body 2 to slide along the slot, thus facilitating its insertion. The groove 7 provides a stable point of force application for the tool, preventing slippage during the pushing of the anti-rotation body 2, further improving the stability and accuracy of the anti-rotation body 2 installation, and ensuring that the anti-rotation body 2 can be accurately and securely inserted into the mounting slot 4.

[0042] The implementation principle of Embodiment 2 of this application is as follows: During the installation process, a tool is first used to drill a smooth-walled bottom hole in the alveolar bone along the groove on the side of the implant body 1. Then, the tool is inserted into the groove 7, and pressure is applied to the groove 7 by the tool, which drives the anti-rotation body 2 to be inserted into the slot. Compared with threaded connection, the sliding insertion method eliminates the step of rotating and screwing in, reduces the operation time and complexity during the installation process, and makes the installation process more efficient and convenient.

[0043] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An early stage anti-loosening implant structure, characterized by: The implant includes an implant body (1) and an anti-rotation body (2). A first external thread (3) is formed on the outer wall of the implant body (1). An installation groove (4) is formed on the outer wall of the implant body (1) at the top of the first external thread (3). The anti-rotation body (2) is provided in the installation groove (4) of the implant body (1). The anti-rotation body (2) is provided along the length direction of the implant body (1).

2. The early-stage anti-loosening implant structure according to claim 1, characterized in that: The anti-rotation body (2) has a second external thread (5) formed on its outer peripheral wall, and the mounting groove (4) is a threaded groove. The anti-rotation body (2) is rotatably disposed in the mounting groove (4).

3. An early loosening prevention implant structure according to claim 2, characterized in that: A drive groove (6) is provided on the top end face of the anti-rotation body (2).

4. An early loosening prevention implant structure according to claim 2, characterized in that: The first external thread (3) and the second external thread (5) have the same thread direction.

5. An early loosening prevention implant structure according to claim 1, characterized in that: The mounting groove (4) is a slot, and the anti-rotation body (2) is slidably inserted into the mounting groove (4).

6. An early loosening prevention implant structure according to claim 5, characterized in that: A pressure groove (7) is provided on the top end face of the anti-rotation body (2).

7. An early loosening prevention implant structure according to claim 2 or 5, characterized in that: The bottom of the anti-rotation body (2) has a chamfer (8).