Single-stage implant fixture with anti-rotation thread and blood channel

Abstract

The application discloses a single-section oral implant dental screw with anti-skid thread and blood groove, which comprises an integrally-formed screw body, the screw body is integrally connected with an implanting section, a connecting section and an operating section in sequence from a tip end to a top end along an axial direction, and does not have any splicing structure; an outer wall of the implanting section is provided with an anti-skid thread structure, the anti-skid thread structure is sequentially divided into a tip anti-skid thread section with hooks, a main anti-skid thread section and a transition anti-skid thread section from the tip end to the connecting section along the axial direction of the implanting section; two groups of penetrating blood grooves are symmetrically formed in the side wall of the connecting section, the blood grooves penetrate the anti-skid thread and the side wall of the implanting section and extend along the axial direction of the screw body; a step structure is arranged between the connecting section and the operating section; and an internal hexagonal structure is formed in the end face of the end of the operating section, away from the connecting section. The integrated structure does not need to be spliced in multiple sections, can complete the implanting operation at one time, simplifies the operation process, reduces the operation trauma and pain of the patient and shortens the treatment cycle.

Description

Technical Field

[0001] This invention belongs to the field of oral implant restoration technology, specifically relating to a single-segment dental implant staple with anti-slip threads and a blood groove. Background Technology

[0002] With the improvement of people's living standards and the development of oral medicine technology, dental implantation has become the most ideal and commonly used clinical technique for restoring missing teeth. An oral implant is an artificial tooth root device implanted into the alveolar bone. Through stable osseointegration with the bone tissue, it provides support and retention for the superimposed crown restoration, thereby restoring the patient's chewing function, aesthetics, and speech. Oral implants have advantages such as not damaging adjacent teeth, high chewing efficiency, long lifespan, and high comfort, and are widely used in clinical dental treatment.

[0003] Currently, most mainstream dental implants on the market adopt a three-segment or multi-segment structural design, mainly composed of multiple independent components such as the implant body, abutment connection segment, and prosthesis connection segment. For example, Chinese invention specification CN114601582A discloses an immediate implant restoration auxiliary positioning carrier, including a connection segment, a simulated abutment, and a guide segment fixedly connected in sequence. The end of the connection segment away from the simulated abutment is used to connect to the implant, and the connection segment rotates synchronously with the implant. The guide segment guides the crown to be installed on the simulated abutment, and the end of the guide segment away from the simulated abutment extends beyond the crown for the dentist to manipulate. This application can reduce the probability of implant deviation after implantation, helping the crown to be directly installed on the implant in the correct position after implantation. However, the aforementioned three-segment implants require multiple surgeries to complete the implantation, healing, abutment connection, and prosthesis installation steps, resulting in a long surgical cycle. After bone augmentation and healing, a second surgery is usually required to remove the intermediate connecting components or replace the abutment, which not only increases surgical time and treatment costs but also causes secondary trauma, increasing the incidence of postoperative complications such as infection, bleeding, and swelling. The implant surface structure is simple, lacking effective bone tissue guidance and fluid drainage structures, resulting in limited contact area with bone tissue and insufficient mechanical locking force, which easily leads to problems such as postoperative loosening, dislodgement, and bone resorption. The implant lacks effective blood drainage and tissue growth channels, and after implantation, local tissue fluid and blood stasis can easily cause bacterial infection and inflammatory reactions, leading to peri-implantitis, which can result in implantation failure in severe cases. The three-segment structure is composed of multiple independent parts, requiring high-precision machining and assembly, resulting in complex production processes and high manufacturing costs.

[0004] In view of the shortcomings of the existing technology, developing a dental implant screw that is simple in structure, convenient in operation, has good osseointegration, high stability and low cost has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by enabling implant restoration to be completed in a single surgery, improving osseointegration efficiency and implant stability, reducing postoperative inflammation risk, and lowering treatment costs. It is a single-segment dental implant with anti-slip threads and a blood groove.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: A single-segment dental implant screw with anti-slip threads and a blood groove is characterized by comprising an integrally formed screw body, wherein the screw body is integrally connected from tip to tip along the axial direction with an implant segment, a connecting segment, and an operating segment, without any splicing structure; the outer wall of the implant segment is provided with an anti-slip thread structure, which is divided into a tip hooked anti-slip thread segment, a main anti-slip thread segment, and a transitional anti-slip thread segment along the axial direction of the implant segment from tip to connecting segment; the tip of the tip hooked anti-slip thread segment has a rounded chamfer of R2, the thread tooth apex angle of the tip hooked anti-slip thread segment is 15°, and the thread tooth apex angle of the main anti-slip thread segment is 2°. The threaded section with a hook at the tip and the main anti-slip threaded section both have fish-scale-like rough anti-slip textures on their thread teeth. The sidewall of the connecting section has two sets of through-type blood grooves symmetrically opened. The blood grooves penetrate the anti-slip thread and the sidewall of the implantation section and extend along the axial direction of the nail body. The symmetrical thickness of the blood grooves is 3.6 mm, the depth of the blood grooves is 0.8 mm, and the width of the blood grooves is 2.2 mm. A stepped structure is provided between the connecting section and the operating section. The axial length of the stepped structure is 0.6 mm, and a chamfer transition is provided at the connection between the stepped section and the operating section. A chamfer is provided at the connection between the connecting section and the operating section. An internal hexagonal structure is opened on the end face of the operating section away from the connecting section.

[0007] In the above structure, the implant segment is the core part of the implant pin inserted into the alveolar bone. Its outer wall is equipped with an anti-slip thread structure. This anti-slip thread structure, along the axial direction of the implant segment from the tip to the connecting segment, is divided into a tip hooked anti-slip thread segment, a main anti-slip thread segment, and a transitional anti-slip thread segment. These three thread segments work together to ensure both ease of implantation and improved anti-slip performance and bone integration. Specifically, the tip of the tip hooked anti-slip thread segment has an R2 rounded chamfer to prevent the tip from being too sharp and scratching the alveolar bone tissue, while also facilitating the implant segment's penetration of the alveolar bone and reducing implantation resistance. The tip hooked anti-slip thread segment has a 15° apex angle, employing a small apex angle design to further improve self-tapping performance, allowing for implantation with minimal cavity preparation, especially suitable for patients with harder bone. The hook structure also enhances the initial locking force with the alveolar bone, preventing slippage during implantation. The main anti-slip thread segment has a 25° apex angle, employing a larger apex angle design to effectively distribute chewing occlusal forces. To avoid stress concentration and increase the contact area with alveolar bone, thus improving osseointegration efficiency, the threaded teeth of both the hooked anti-slip threaded section and the main anti-slip threaded section are decorated with fish-scale-like rough anti-slip textures. The surface roughness is controlled between Ra3.2 and Ra6.3 by acid etching. The pits on the tooth surface are arranged in a series, and the pits are disc-shaped with a radius of 0.2 mm. This rough anti-slip texture design can increase the friction coefficient between the threaded tooth surface and bone tissue, further improve the anti-slip performance, prevent the implant pin from rotating and shifting, and at the same time provide sufficient attachment points for bone cell attachment and growth, thus promoting osseointegration. The implant segment has two sets of symmetrically arranged through-hole blood grooves on its sidewall. These blood grooves penetrate the anti-slip threads and the sidewall of the implant segment, extending axially along the implant body. The symmetrical thickness of each blood groove is 3.6 mm, the depth is 0.8 mm, and the width is 2.2 mm. The design of the blood grooves is one of the core features of this invention. Their main function is to promptly remove alveolar bone debris during implantation, reducing implantation resistance and preventing bone tissue compression damage. Simultaneously, they provide ample space for bone tissue growth, promoting close integration between the bone tissue and the implant. Furthermore, the blood grooves can also accommodate blood and tissue fluid from the oral cavity, providing nutrients for bone cell growth and accelerating the osseointegration process. The groove wall is parallel to the axis of the implant body, and the bottom of the groove is rounded to avoid the sharp edges of the groove wall scratching the bone tissue and surrounding soft tissue, thus improving the safety of use. The opening of the groove is chamfered at 0.8-0.3, which further reduces the resistance during the implantation process and prevents burrs from forming at the opening, thus avoiding damage to the gums and alveolar bone. The distance between the symmetrical grooves on both sides of the groove is Φ4.6. The symmetrical design ensures that the implant segment is evenly stressed, avoiding implant displacement caused by uneven stress, and also facilitates uniform bone growth, improving the stability of osseointegration. A stepped structure with a diameter of Φ4 and an axial length of 0.6mm is provided between the transitional anti-slip threaded section and the connecting section. The joint between the step and the main anti-slip threaded section is chamfered at 3-0.2. The stepped structure design can limit the implant segment, preventing excessive implantation and damage to deep alveolar bone nerves and blood vessels. It also enhances the connection strength between the connecting section and the implant segment, avoiding stress concentration at the joint. The chamfered transition design further disperses stress, preventing cracks or fractures at the joint and extending the life of the implant. The transitional anti-slip threaded section is 0.6mm long, with the thread outer diameter gradually changing from Φ3 to Φ4, the thread pitch gradually changing from 0.46mm to 0.6mm, and the thread tooth apex angle gradually changing from 15° to 25°. This achieves a smooth transition of the anti-slip thread, avoiding stress concentration caused by abrupt changes in thread size, ensuring smooth implantation, and reducing damage to bone tissue. The connecting segment is a crucial part connecting the implant post to the crown abutment. The junction between the connecting segment and the operating segment features a chamfer. The length design of the connecting segment ensures a full connection with the abutment, enhancing connection strength and facilitating abutment installation and adjustment. The chamfer reduces stress concentration at the junction, preventing breakage and facilitating instrument manipulation during surgery, preventing instruments from scratching the connecting segment threads. The M2 standard thread pitch of the connecting segment is 0.4mm, the chamfer angle between the connecting segment and the operating segment is 15°, and the axial dimension of the chamfer is 0.13mm. Precise dimensional control ensures the fit and stability of the connection. The working section has a hexagonal internal structure with a cross-side dimension of Φ4 and a depth of 10.5mm. The inner wall of the hexagonal internal structure has a slight anti-slip texture, which can increase the friction between the wrench and the working section, prevent the wrench from slipping during operation, and improve the stability and accuracy of operation. Furthermore, the material of the nail body is TC4 titanium alloy. TC4 titanium alloy has good biocompatibility, corrosion resistance, and mechanical properties. It is compatible with human tissue and will not cause allergic reactions. At the same time, it is resistant to corrosion by oral fluids and bacteria, and can be used stably for a long time. It is the preferred material for dental implant nails. The surface of the nail body is polished to a roughness of Ra1.6 or less, and all unmarked chamfers are C0.2. The unmarked roughness requirement is Ra1.6 or less. Polishing can reduce plaque adhesion, reduce the incidence of peri-implantitis, and improve surface smoothness, reducing irritation to surrounding soft tissues. The uniform requirements for unmarked chamfers and roughness can ensure the consistency of product quality and avoid the use risks caused by local roughness or improper chamfering. Furthermore, the length of the pointed hook anti-slip threaded section is 5mm, the outer diameter of the thread is Φ2, and the thread pitch is 0.46mm; the length of the main anti-slip threaded section is 7.55mm, the outer diameter of the thread is Φ3, and the thread pitch is 0.46mm. The small outer diameter and 15° small apex angle design of the pointed hook anti-slip threaded section facilitates penetration of the alveolar bone during implantation, reducing damage to bone tissue. At the same time, the hook structure can enhance the initial retention force. The main threaded section adopts a large outer diameter and standard pitch, which can increase the contact area with the alveolar bone, improve the osseointegration efficiency and structural stability. Meanwhile, the 0.46mm pitch design can balance the implantation resistance and retention force, ensuring smooth implantation while improving anti-slip performance. The thread crest width of the main anti-slip thread section is controlled at 0.08-0.12mm, the thread height is 0.35mm, and the thread helix angle is 3°, which effectively enhances the mechanical locking force with the alveolar bone, prevents the implant screw from rotating and shifting, and can also disperse the chewing occlusal force to avoid stress concentration. Furthermore, the length of the blood groove matches the total length of the hooked anti-slip threaded section at the tip of the implant segment and the main anti-slip threaded section. The blood groove extends through the entire effective threaded area of ​​the implant segment, and the groove wall is polished to remove burrs, ensuring the drainage and chip removal function of the blood groove while avoiding scratching bone tissue. The depth of the blood groove is 0.8±0.3mm, the width is 2.2mm, and the symmetry error does not exceed 0.1mm. Precise dimensional control ensures the functional effectiveness of the blood groove while avoiding insufficient strength of the implant segment due to dimensional deviations. Furthermore, the overall length of the nail body is 18.6 mm, the implantation segment is 11.1 mm, the connecting segment is 4.5 mm, and the operating segment is 12.5 mm; the maximum outer diameter of the nail body is Φ4.6, and the minimum outer diameter is Φ2. This size design is suitable for the alveolar bone anatomy of most patients and can be customized according to patient needs to improve adaptability; the implantation segment is truncated conical in shape, with the small end away from the connecting segment, and the taper is 5-15°. The taper design facilitates wedging and can moderately expand the implant bed when rotating into the bone foramen, enabling the implant to achieve good initial retention, especially for Class III and IV bone with relatively loose bone.

[0008] The present invention has the following beneficial effects: This invention employs a single-segment, integrated structural design, completely resolving the splicing defects of traditional three-segment dental implants and compensating for the structural shortcomings of existing single-segment implants. The implant body of this invention is a one-piece molded structure without any splicing gaps, fundamentally eliminating the problems of micro-movement wear, loosening of connections, and stress concentration at the splicing points of traditional three-segment implants, significantly improving the structural stability and lifespan of the implant. Simultaneously, the integrated structure eliminates the need for multi-segment splicing, allowing for a single implantation procedure, simplifying the surgical process, reducing surgical trauma and pain for patients, and shortening the treatment cycle (eliminating the need to wait for osseointegration before installing the connecting segment and abutment segment, reducing the treatment cycle to 1-2 months). This also reduces the risk of infection from multiple surgeries and improves the patient's treatment experience. Furthermore, the integrated structural design simplifies the manufacturing process, reduces processing steps, improves product yield, and lowers manufacturing costs.

[0009] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This invention provides a three-dimensional structural diagram of a single-segment dental implant staple with anti-slip threads and a blood groove.

[0012] Figure 2 This invention provides a front view structural schematic diagram of a single-segment dental implant staple with anti-slip threads and a blood groove. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0014] This embodiment of a single-segment dental implant staple with anti-slip threads and blood grooves includes a one-piece staple body made of TC4 titanium alloy. The surface is polished to a roughness of Ra1.6 or less, and all unmarked chamfers are C0.2, with an unmarked surface roughness requirement of Ra1.6 or less. The staple body is integrally connected from tip to tip along the axial direction with implantation segment 1, connecting segment 2, and operating segment 3, without any splicing structure. The overall length is 18.6 mm, the maximum outer diameter is Φ4.6, and the minimum outer diameter is Φ2.

[0015] The implant segment 1 is 7.5 mm long and is truncated conical in shape, with the small end far away from the connecting segment and a taper of 10°. The outer wall of the implant segment 1 is provided with an anti-slip thread structure, which is divided into a tip hooked anti-slip thread segment 101, a main anti-slip thread segment 102 and a transitional anti-slip thread segment 103 along the axial direction. The length of the hooked anti-slip threaded section is 5mm, the outer diameter of the thread tip is Φ2mm, the thread pitch is 0.46mm, the thread tooth apex angle is 15°, and the tip has an R2 rounded chamfer; the length of the main anti-slip threaded section is 7.55mm, the outer diameter of the thread is Φ4.6mm, the thread pitch is 0.46mm, the thread tooth apex angle is 25°, the thread tooth width is 0.1mm, the thread tooth height is 0.35mm, and the thread helix angle is 3°; the length of the transition anti-slip threaded section 103 is 0.6mm, the outer diameter of the thread gradually changes from Φ4.6 to Φ4, the thread pitch gradually changes from 0.46mm to 0.6mm, and the thread tooth apex angle gradually changes from 15° to 25°. Both the tip hook anti-slip thread section 101 and the main anti-slip thread section 102 have fish scale-like rough anti-slip textures on their thread teeth. They are treated with acid etching process, and the roughness of the rough surface is Ra4.8. The pits on the tooth surface are arranged in a series, and the pits are disc-shaped with a radius of 0.2mm.

[0016] Two sets of through-type blood grooves 201 are symmetrically opened on the side wall of the connecting section 2. The blood grooves penetrate the anti-slip thread and the side wall of the implantation section and extend axially. The symmetrical thickness of the blood grooves is 3.6mm, the depth of the blood grooves is 0.8mm, and the width of the blood grooves is 2.2mm. The groove wall is parallel to the axis of the nail body. The bottom of the groove is set as an arc transition, and the opening is set as a chamfer of 0.8-0.3. The distance between the symmetrical blood grooves on both sides is Φ4.6. The groove wall is polished and burr-free.

[0017] A stepped structure 4 is provided between the connecting section 2 and the operating section 3. The axial length of the stepped structure 4 is 0.6 mm, and the connection between the stepped structure 4 and the operating section 3 is chamfered. The connecting section 2 is 2.0 mm long, and its outer wall is provided with a standard M2 thread with a pitch of 0.4 mm and a thread accuracy grade of 6H. The connection between the connecting section and the operating section is chamfered with a chamfer angle of 15°.

[0018] The operating section is 2.5mm long. The end face of the operating section 3 away from the connecting section 2 has an internal hexagonal structure with a depth of 6.5mm and a slight anti-slip texture on the inner wall.

[0019] The dental implant screw in this embodiment adopts a single-segment integrated structure, which can complete the implantation surgery in one session without the need for multiple implantations. The anti-slip thread structure and blood groove structure work together to improve anti-slip performance and structural stability, while accelerating the osseointegration process, resulting in a high implantation success rate. The precise size design and high-quality materials make it highly adaptable, have a long service life, and can be widely used for implant restoration of various types of missing teeth.

[0020] The single-segment dental implant with anti-slip threads and blood groove described in this embodiment of the invention (experimental group) was selected and compared with the existing three-segment dental implant (control group 1) and the existing single-segment dental implant (CN205198173, control group 2) for performance evaluation. The test items included structural stability, anti-slip performance, osseointegration efficiency, surgical convenience, and manufacturing cost. The test results are shown in the table below:

[0021]

[0022] The test results above show that the single-segment dental implant with anti-slip threads and blood groove of the present invention is superior to the existing three-segment dental implant and the existing single-segment dental implant in terms of structural stability, anti-slip performance, osseointegration efficiency, surgical convenience and manufacturing cost. It has significant technical advantages and can completely replace the traditional three-segment dental implant and be widely used in the field of dental implantation.

[0023] This invention features an optimized anti-slip thread structure that significantly improves anti-slip performance and effectively prevents implant self-rotation and displacement. The anti-slip thread structure consists of a hooked tip anti-slip thread section, a main anti-slip thread section, and a transitional anti-slip thread section. These three thread sections work synergistically: the hooked tip anti-slip thread section's 15° apex angle and hook structure enhance self-tapping performance, facilitating implantation and strengthening initial retention to prevent slippage during implantation; the main anti-slip thread section's 25° apex angle and larger outer diameter increase the contact area with the alveolar bone, effectively dispersing chewing forces, preventing stress concentration, and improving osseointegration efficiency; the transitional anti-slip thread section's gradual design achieves a smooth transition in thread size and apex angle, further dispersing stress and preventing damage caused by abrupt thread changes. Meanwhile, the fish-scale-like rough anti-slip texture on the threaded surface, treated with acid etching, increases the friction coefficient between the thread and bone tissue, further enhancing anti-slip performance and preventing implant displacement. This is especially suitable for patients with osteoporosis. Combined with the tapered design of the implant segment, it can still achieve good initial stability even in patients with poor bone quality. This design is superior to the single-threaded structure of existing single-segment implants, solving the problem of insufficient anti-slip performance of existing single-segment implants. The rationally arranged through-hole blood groove structure significantly improves osseointegration efficiency and implant success rate. This invention has two sets of through-holes symmetrically opened on the sidewall of the implant segment. The blood grooves run through the entire effective threaded area of ​​the implant segment, which can promptly remove alveolar bone tissue debris during implantation, reduce implantation resistance, avoid bone tissue compression damage, and protect the integrity of bone tissue. At the same time, the blood grooves can accommodate blood and tissue fluid in the oral cavity, providing sufficient nutrition and growth space for bone cell growth, accelerating the osseointegration process. Compared with existing single-segment implants without blood grooves, the osseointegration speed can be increased by more than 30%. The rounded transition of the blood groove bottom and the chamfered opening design avoid scratching bone tissue and surrounding soft tissue, improving safety. Simultaneously, the symmetrical design of the blood groove ensures even force distribution on the implant segment, preventing implant displacement due to uneven force and further improving the success rate. From a biomimetic perspective, the blood groove design simulates the concave structure of natural tooth roots, enhancing the mechanical bonding force with bone tissue and achieving an "anchoring effect" similar to natural tooth roots, further improving osseointegration. Precise dimensional and structural design ensures strong adaptability and convenient surgical operation. This invention precisely optimizes the dimensions of each segment of the nail body, ensuring that the overall dimensions are compatible with the alveolar bone anatomy of most patients. Furthermore, it can be customized based on the patient's alveolar bone volume, bone density, and the anatomical structure of the tooth loss site, thus improving clinical adaptability. The internal hexagonal structure of the operating segment is compatible with standard internal hexagonal wrenches, and the positioning groove is compatible with surgical positioning instruments, ensuring precise implantation angles and avoiding implantation failure due to angle deviations. Additionally, the slight anti-slip texture on the inner wall of the internal hexagonal wrench prevents wrench slippage during operation, improving the convenience and precision of the surgical procedure, reducing surgical difficulty, and facilitating the surgeon's operation.The M2 standard thread of the connector section is compatible with dental implant abutment connectors, ensuring a tight and stable connection with the abutment, preventing loosening or bacterial infiltration, and reducing the incidence of peri-implantitis. High-quality materials and surface treatment ensure good biocompatibility and a long service life. This invention uses TC4 titanium alloy as the material for the implant body, which has excellent biocompatibility, corrosion resistance, and mechanical properties. It is compatible with human tissues and will not cause allergic reactions. It is also resistant to corrosion from oral fluids and bacteria, allowing for long-term stable use. The implant body surface is polished to a Ra1.6 or lower, reducing plaque adhesion and lowering the incidence of peri-implantitis, while also improving surface smoothness and reducing irritation to surrounding soft tissues. The acid-etched roughening treatment of the threaded surfaces improves anti-slip performance and provides ample attachment points for bone cell attachment and growth, further promoting osseointegration and extending the lifespan of the implant implant. In addition, the overall polishing and chamfering design avoid burrs and sharp edges, improving safety in use and reducing the risk of electrochemical corrosion, thus preventing the release of metal ions from affecting the patient's oral health.

[0024] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A single-segment dental implant staple with anti-slip threads and a blood groove, characterized in that, The device includes a one-piece molded nail body, which is integrally connected from tip to tip along the axial direction with an implantation section, a connecting section, and an operating section, without any splicing structure. The outer wall of the implantation section is provided with an anti-slip thread structure, which is divided into a pointed hook anti-slip thread section, a main anti-slip thread section, and a transitional anti-slip thread section along the axial direction of the implantation section from tip to connecting section. The pointed hook anti-slip thread section has a rounded chamfer of R2 at its tip, and the thread tooth apex angle of the pointed hook anti-slip thread section is 15°. The thread tooth apex angle of the main anti-slip thread section is 25°, and the pointed hook anti-slip thread section is connected to... The threaded surfaces of the main anti-slip thread section are all provided with fish-scale-like rough anti-slip textures; the sidewall of the connecting section is symmetrically provided with two sets of through-type blood grooves, which penetrate the anti-slip thread and the sidewall of the implantation section and extend along the axial direction of the nail body. The symmetrical thickness of the blood groove is 3.6mm, the depth of the blood groove is 0.8mm, and the width of the blood groove is 2.2mm; a stepped structure is provided between the connecting section and the operating section, the axial length of the stepped structure is 0.6mm, and a chamfer transition is provided at the connection between the stepped section and the operating section; a chamfer is provided at the connection between the connecting section and the operating section; an internal hexagonal structure is provided on the end face of the operating section away from the connecting section.

2. The single-segment dental implant staple with anti-slip threads and blood groove as described in claim 1, characterized in that, The nail body is made of TC4 titanium alloy, and the surface of the nail body is polished to a roughness of Ra1.6 or less. The anti-slip texture of the thread tooth surface is treated with acid etching process, and the roughness of the rough surface is controlled between Ra3.2 and Ra6.

3. The tooth surface pits are arranged in a series, and the pits are disc-shaped with a radius of 0.2mm.

3. The single-segment dental implant staple with anti-slip threads and blood groove as described in claim 1, characterized in that, The length of the pointed hook anti-slip threaded section is 5mm, the outer diameter of the thread tip of the pointed hook anti-slip threaded section is Φ2mm, and the thread pitch is 0.46mm; the length of the main anti-slip threaded section is 7.55mm, the outer diameter of the thread of the main threaded section is Φ3mm, and the thread pitch is 0.46mm; the length of the transition anti-slip threaded section is 0.6mm, the outer diameter of the thread of the transition anti-slip threaded section gradually changes from Φ3mm to Φ4mm, the thread pitch gradually changes from 0.46mm to 0.6mm, and the apex angle of the thread tooth of the transition anti-slip threaded section gradually changes from 15° to 25°, so as to achieve a smooth transition of the anti-slip thread.

4. The single-segment dental implant staple with anti-slip threads and blood groove as described in claim 1, characterized in that, The wall of the blood groove is parallel to the axis of the nail body, the bottom of the blood groove is rounded, the opening of the blood groove is chamfered at 0.8-0.3mm, and the distance between the blood grooves on the symmetrical sides is Φ4.6mm.

5. The single-segment dental implant staple with anti-slip threads and blood groove according to claim 1, characterized in that, The M2 standard thread pitch of the connecting section is 0.4mm, the chamfer angle between the connecting section and the operating section is 15°, and the axial dimension of the chamfer is 0.13mm; the M2 standard thread of the connecting section is adapted to dental implant abutment connectors, and the thread accuracy grade is 6H.

6. The single-segment dental implant staple with anti-slip threads and blood groove according to claim 1, characterized in that, The overall length of the nail body is 18.6 mm, the length of the implantation section is 11.1 mm, the length of the connecting section is 4.5 mm, and the length of the operating section is 12.5 mm; the maximum outer diameter of the nail body is Φ4.6 mm, and the minimum outer diameter is Φ2 mm; the implantation section is truncated conical in shape, with the small end away from the connecting section, and the taper is 5-15°.

7. The single-segment dental implant staple with anti-slip threads and blood groove as described in claim 1, characterized in that, The working section has an internal hexagonal structure with a side dimension of Φ4mm, a depth of 10.5mm, a positioning groove depth of 2.5mm, and an inner diameter of Φ1.5mm; the inner wall of the internal hexagonal structure is provided with slight anti-slip texture.

8. The single-segment dental implant staple with anti-slip threads and blood groove according to claim 1, characterized in that, The thread tooth tip width of the main anti-slip thread section is controlled at 0.08-0.12mm, the thread tooth height is 0.35mm, and the thread helix angle is 3°.

Images