Anti-exfoliation conical implant

Abstract

The utility model relates to dental implant technology field, concretely is a kind of anti-falling conical implant, it is composed of first cone section, second cone section and conical section, the taper of first cone section is greater than the taper of second cone section, first external thread is arranged on the outside of first cone section, second external thread is arranged on the outside of second cone section, the pitch of first external thread is less than the pitch of second external thread, the thread height of first external thread is less than the thread height of second external thread, the thread crest width of first external thread is less than the thread crest width of second external thread.The anti-falling conical implant is designed by the taper difference of first, second cone section and different parameter external thread, realizes quick cutting and fine screwing in when implanting, enhances stability;Hemispherical groove structure increases surface area, promotes cell adhesion and bone integration;Thread hole design facilitates surgical instrument connection, improves positioning accuracy;Thread parameter and groove combination dispersion stress, reduce the risk of loosening.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, specifically to a cone-shaped implant designed to prevent detachment. Background Technology

[0002] In the field of dental implantology, the stability and long-term fixation effect of implants are important indicators for evaluating their performance. Traditional dental implants are often designed with a focus on the direct contact area with the alveolar bone and initial stability. However, in actual clinical applications, there are still problems with implants loosening or falling out under external forces. This is mainly due to an unreasonable design of the implant surface, which prevents the cells proliferating during the alveolar bone healing process from effectively adhering to and fixing on the implant surface, thus affecting the bonding strength between the implant and the alveolar bone.

[0003] Specifically, traditional implants are mostly designed with smooth surfaces. Although they can achieve a certain degree of stability in the early stages through mechanical locking, during long-term use, due to the complexity of the oral environment and the continuous action of external forces (such as chewing force), micro-relative movements between the implant and alveolar bone are inevitable. These micro-movements will hinder the adhesion and growth of proliferating cells on the implant surface, thereby affecting the osseointegration process between the implant and alveolar bone, and ultimately leading to implant loosening or even detachment.

[0004] To address this issue, researchers have attempted to improve implant surface design through various techniques to enhance its bonding strength with alveolar bone. For example, multi-melting-point sintering technology has been used to create multiple pores on the implant surface, aiming to allow proliferating cells to adhere to these pores and thus enhance fixation. However, in practical applications, this technology suffers from problems such as irregular pore size and depth, and smooth inner surfaces that make cell adhesion difficult, making it hard to achieve the desired fixation effect. In addition, some implant designs improve cell adhesion by increasing surface roughness or using special coatings, but these methods often have problems such as complex processes, high costs, or poor biocompatibility, limiting their application in actual clinical practice.

[0005] Therefore, developing a dental implant with excellent adhesion, resistance to loosening under external forces, and stable integration with alveolar bone has become a pressing technical challenge in the field of dental implantology. This invention addresses this technical challenge by proposing a tapered implant design that prevents detachment. Utility Model Content

[0006] To address the aforementioned issues, this invention provides a tapered implant designed to prevent dislodgement. This tapered implant optimizes the implant surface structure and thread parameters to achieve a firm bond between the implant and the alveolar bone, thereby improving the long-term stability and success rate of the implant.

[0007] The technical solution of this utility model is as follows:

[0008] A tapered implant designed to prevent detachment comprises a first tapered segment, a second tapered segment, and a conical segment connected end to end. The taper of the first tapered segment is greater than that of the second tapered segment. A first external thread is provided on the outside of the first tapered segment, and a second external thread is provided on the outside of the second tapered segment. The pitch of the first external thread is less than that of the second external thread, the thread height of the first external thread is less than that of the second external thread, and the crest width of the first external thread is less than that of the second external thread.

[0009] Furthermore, the end of the first conical section is provided with a threaded hole for connection with dental surgical instruments.

[0010] Furthermore, the outer surface of the cone-shaped implant is evenly distributed with several first grooves.

[0011] Specifically, the first groove is a hemispherical groove structure.

[0012] Preferably, the bottom of the first groove is provided with a second groove.

[0013] Specifically, the second groove is a hemispherical groove structure.

[0014] Furthermore, several third grooves are evenly distributed on the wall of the first groove.

[0015] Specifically, the third groove is a hemispherical groove structure.

[0016] Optionally, the taper of the first conical segment is 3°-5°, and the taper of the second conical segment is 1°-2°.

[0017] Optionally, the pitch of the first external thread is 0.3-0.6 mm, the thread height is 0.2-0.4 mm, and the thread crest width is 0.05-0.15 mm; the pitch of the second external thread is 0.8-1.0 mm, the thread height is 0.5-0.7 mm, and the thread crest width is 0.2-0.4 mm.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model discloses a tapered implant designed to prevent dislodgement. This tapered implant enhances the stability between the implant and the alveolar bone. The difference in taper between the first and second tapered sections, as well as the different pitches, heights, and crest widths of the external threads, allow the coarse thread section to quickly cut into the alveolar bone during implantation, providing initial stability. The fine thread section then finely screws in along the coarse thread trajectory, increasing the contact area and friction, thereby enhancing the bonding strength between the implant and the alveolar bone and reducing the risk of loosening.

[0020] 2. The present invention discloses a cone-shaped implant designed to prevent dislodgement. This cone-shaped implant promotes cell attachment and bone integration. The hemispherical design of the first, second, and third grooves increases the roughness and surface area of ​​the implant surface, providing attachment points for cells proliferating during alveolar bone healing, promoting cell adhesion and bone integration. The hemispherical structure of the grooves helps to distribute cells evenly, avoid stress concentration, and further enhance the stability of the implant.

[0021] 3. The present invention discloses a tapered implant designed to prevent dislodgement. This tapered implant can optimize surgical operation and positioning accuracy. The design of the threaded hole facilitates the connection of dental surgical instruments, enabling precise implantation and positioning. It helps doctors control the direction and depth of the implant during the operation, reduces operational errors, and improves the success rate of the operation.

[0022] 4. The present invention discloses a tapered implant designed to prevent dislodgement. This tapered implant can disperse stress and reduce the risk of loosening. The parameter design of the first and second external threads (pitch, height, tooth crest width) combined with the groove structure can disperse the stress of the implant under functional loads such as chewing, avoid implant loosening or bone resorption caused by stress concentration, and extend the service life of the implant.

[0023] 5. The present invention discloses a cone-shaped implant designed to prevent dislodgement. After implantation, the cone-shaped implant can form a tight mechanical and biological bond with the alveolar bone, reducing the risk of micromovement and loosening, helping to maintain the function of the implant, reducing complications, and improving patient satisfaction and quality of life. Attached Figure Description

[0024] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a three-dimensional structural diagram of a cone-shaped implant for preventing detachment, according to Embodiment 1 of this utility model.

[0027] Figure 2 This is a partial cross-sectional view of a cone-shaped implant for preventing detachment, according to Embodiment 2 of this utility model;

[0028] Figure 3 for Figure 2 Enlarged view at point A in the middle;

[0029] Figure 4 This is a partial enlarged view of the first groove of a cone-shaped implant for preventing detachment, according to Embodiment 3 of this utility model.

[0030] The components represented by the various reference numerals in the diagram are:

[0031] This utility model includes: 100, first conical segment; 110, first external thread; 200, second conical segment; 210, second external thread; 300, conical segment; 400, threaded hole; 500, first groove; 510, second groove; 520, third groove. Detailed Implementation

[0032] Example 1

[0033] Traditional implants are designed with a focus on the direct contact area with the alveolar bone and initial stability. However, in actual clinical applications, due to the complexity of the oral environment and the continuous action of external forces (such as chewing forces), implants are prone to loosening or even falling out. This is mainly because the implant surface design is not reasonable enough, which prevents the cells proliferating during the alveolar bone healing process from effectively adhering to and fixing on the implant surface, thus affecting the bonding strength between the implant and the alveolar bone.

[0034] To address the aforementioned problems, this invention proposes a tapered implant design to prevent implant dislodgement. The core idea is to enhance the mechanical and biological bonding between the implant and alveolar bone by optimizing the implant's geometry and surface structure, thereby improving the implant's long-term stability and success rate. Specifically, as... Figure 1 As shown, the anti-dislodgement conical implant consists of a first conical segment 100, a second conical segment 200, and a conical segment 300 connected end to end. The implant is designed as a conical structure to enhance its stability in the alveolar bone and prevent dislodgement. It should be noted that the dividing line between the first conical segment 100, the second conical segment 200, and the conical segment 300 is not clearly drawn in the figure. Therefore, this part is a one-piece molded part, and the above three segment names are for ease of description.

[0035] The taper of the first conical segment 100 is 3°-5°, meaning that the diameter of the end of the first conical segment 100 is larger than the diameter at the junction with the second conical segment 200. The larger taper design allows the segment to be more firmly embedded in the initial part of the alveolar bone.

[0036] The first conical section 100 has a first external thread 110 on its outer surface. The pitch of the first external thread 110 is 0.3-0.6 mm, the thread height is 0.2-0.4 mm, and the thread crest width is 0.05-0.15 mm. The fine thread design helps to provide stronger gripping force in the early stages of implantation.

[0037] The end of the first conical segment 100 is provided with a threaded hole 400 for connection with dental surgical instruments to facilitate implantation.

[0038] The taper of the second conical segment 200 is 1°-2°, meaning that the diameter at the junction of the second conical segment 200 and the first conical segment 100 is greater than the diameter at the junction of the second conical segment 200 and the conical segment 300. The smaller taper design allows the segment to transition more smoothly to the conical segment while maintaining stability.

[0039] The second conical section 200 is externally machined with a second external thread 210. The pitch of the second external thread 210 is 0.8-1.0 mm, the thread height is 0.5-0.7 mm, and the thread crest width is 0.2-0.4 mm. The coarser thread design helps to provide stable support in the deeper part of the alveolar bone.

[0040] The conical segment 300 serves as the terminal part of the implant. The conical segment design helps reduce resistance during implantation and makes the implant as a whole more in line with the natural shape of the alveolar bone.

[0041] Example 2

[0042] Although the anti-dislodgement tapered implant in Example 1 significantly enhances the initial stability and long-term fixation of the implant in the alveolar bone through its unique tapered structure and differentiated thread design, the bonding strength between the implant and the alveolar bone depends not only on mechanical locking but also on the surface roughness and surface area of ​​the implant. Traditional smooth surface designs or simple roughening treatments are difficult to provide sufficient cell attachment points, thus affecting the osseointegration process. Therefore, in order to further improve the stability and success rate of the implant, this example is an improvement on Example 1, aiming to promote cell attachment and osseointegration by increasing the surface roughness and surface area of ​​the implant.

[0043] like Figure 2 and Figure 3 As shown, the tapered implant has several first grooves 500 evenly distributed on its exterior. The first grooves 500 are hemispherical groove structures, which increase the contact area between the implant and the alveolar bone and improve stability.

[0044] Based on the anti-dislodgement conical implant of Example 1, this embodiment further improves the surface roughness and surface area of ​​the implant by adding a hemispherical first groove 500 and optimizing its layout. This not only enhances the mechanical interlocking between the implant and the alveolar bone, but also promotes the osseointegration process by providing more cell attachment points, thereby further improving the long-term stability and success rate of the implant.

[0045] During alveolar bone healing, surrounding bone tissue releases various growth factors and cytokines, stimulating mesenchymal stem cells in the bone marrow to migrate to the implant surface. When these proliferating cells come into contact with the hemispherical grooves on the implant surface, their rough surface structure and larger surface area make it easier for them to find attachment points and stabilize. Cells bind to the implant surface through cell adhesion molecules such as integrins, forming a preliminary cell-material interface. Proliferating cells attached to the implant surface begin to secrete extracellular matrix (ECM), such as collagen and fibronectin. These matrix components further consolidate the connection between cells and the implant. Over time, the extracellular matrix gradually mineralizes, forming bone tissue and achieving osseointegration between the implant and the alveolar bone. In this process, the design of the hemispherical grooves helps to distribute cells evenly and avoid stress concentration, thereby enhancing the stability and long-term fixation effect of the implant.

[0046] Example 3

[0047] While Example 2 significantly improved the surface roughness and surface area of ​​the implant by adding a hemispherical first groove 500, thereby promoting cell attachment and osseointegration, simply adding a first-order groove structure still has limitations in improving the long-term stability of the implant. Specifically, the bonding strength between the implant and alveolar bone depends not only on the surface roughness and direct contact area, but also on the uniformity of stress distribution and the diversity of cell attachment sites. Therefore, to further improve the long-term stability and biocompatibility of the implant, this example makes further improvements based on Example 2, such as... Figure 4 As shown, a second groove 510 is provided at the bottom of the first groove 500. It is also a hemispherical groove structure, which further increases the contact area and friction.

[0048] Furthermore, a third groove 520, which is also a hemispherical groove structure, is evenly distributed on the groove wall (excluding the groove bottom) of the first groove 500. Through the multi-level groove design, the bonding force between the implant and the alveolar bone is greatly enhanced.

[0049] This embodiment further increases the complexity and surface area of ​​the implant surface, providing more attachment sites and migration paths for cells. Cells migrate and attach between these grooves, forming a more complex and stable cell-material interface, thereby improving the overall stability and success rate of the implant. The anti-dislodgement conical implant of this embodiment, while maintaining the advantages of Embodiments 1 and 2, further improves the overall performance and clinical application effect of the implant.

[0050] The manufacturing process of this anti-dislodgement cone-shaped implant is as follows:

[0051] 1. Material preparation: Select biocompatible titanium alloy material to ensure that the implant will not cause rejection after being implanted in the human body.

[0052] 2. Machining the first tapered section 100 and the second tapered section 200: Precision machining is performed using a CNC machine tool to form the required taper and external thread.

[0053] 3. Make a threaded hole 400: Use a drill to make a threaded hole at the end of the first conical section 100 for connection with dental instruments.

[0054] 4. Groove processing: The first groove 500, the second groove 510 and the third groove 520 are processed on the surface of the implant using laser processing or chemical etching technology.

[0055] 5. Surface treatment: The implant surface is treated with sandblasting, acid washing, etc., to increase surface roughness and improve its integration with alveolar bone.

[0056] 6. Cleaning and disinfection: Thoroughly clean and disinfect the processed implants to ensure a sterile environment.

[0057] This anti-dislodgement cone implant, through its unique cone design and multi-level groove structure, significantly enhances its stability in the alveolar bone, effectively preventing dislodgement.

Claims

1. A cone-shaped implant designed to prevent detachment, characterized in that, It consists of a first conical segment (100), a second conical segment (200), and a conical segment (300) connected end to end. The taper of the first conical segment (100) is greater than that of the second conical segment (200). A first external thread (110) is provided on the outside of the first conical segment (100), and a second external thread (210) is provided on the outside of the second conical segment (200). The pitch of the first external thread (110) is less than that of the second external thread (210). The thread height of the first external thread (110) is less than that of the second external thread (210). The thread crest width of the first external thread (110) is less than that of the second external thread (210).

2. The cone-shaped implant for preventing dislodgement according to claim 1, characterized in that, The end of the first conical segment (100) is provided with a threaded hole (400) for connecting with dental surgical instruments.

3. A cone-shaped implant for preventing dislodgement according to claim 1 or 2, characterized in that, The conical implant has several first grooves (500) evenly distributed on its outer surface.

4. The cone-shaped implant for preventing dislodgement according to claim 3, characterized in that, The first groove (500) is a hemispherical groove structure.

5. The cone-shaped implant for preventing dislodgement according to claim 3, characterized in that, The bottom of the first groove (500) is provided with a second groove (510).

6. The cone-shaped implant for preventing dislodgement according to claim 5, characterized in that, The second groove (510) is a hemispherical groove structure.

7. The cone-shaped implant for preventing dislodgement according to claim 5, characterized in that, The first groove (500) has several third grooves (520) evenly distributed on its groove wall.

8. The cone-shaped implant for preventing dislodgement according to claim 7, characterized in that, The third groove (520) is a hemispherical groove structure.

9. The cone-shaped implant for preventing dislodgement according to claim 1, characterized in that, The first conical segment (100) has a taper of 3°-5°, and the second conical segment (200) has a taper of 1°-2°.

10. A cone-shaped implant for preventing dislodgement according to claim 1, characterized in that, The first external thread (110) has a pitch of 0.3-0.6 mm, a thread height of 0.2-0.4 mm, and a thread crest width of 0.05-0.15 mm; the second external thread (210) has a pitch of 0.8-1.0 mm, a thread height of 0.5-0.7 mm, and a thread crest width of 0.2-0.4 mm.

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