A multi-functional dental implant system

Abstract

This invention belongs to the field of oral implant technology and relates to a multifunctional dental implant system that solves the technical problems of implant mismatch with alveolar bone and the need for different abutment models for different gingival heights. It includes a stable implant, anti-dislodgement screws, and a variable abutment. The stable implant comprises a first step, a second step, and a third step connected sequentially from top to bottom. Each step is cylindrical and arranged in descending order of outer diameter as the first, second, and third steps. Each step is adapted to the patient's different bone density: the first step matches Class I bone, the second step matches Class II / III bone, and the third step matches Class IV bone. The variable abutment can change its height to adapt to different gingival heights.

Description

Technical Field

[0001] This invention belongs to the field of oral implant technology, specifically relating to a multifunctional dental implant system. Background Technology

[0002] Most implant systems currently on the market consist of an implant, screws, and an abutment, such as... Figure 1 As shown. The implants are primarily cylindrical or conical in shape, screwed into the alveolar bone via external threads, serving as the main connection method between the implant and the jawbone. Figure 2 As shown. The abutment, through the cooperation of its lower external hexagonal structure and the internal hexagonal structure of the implant, is inserted into the implant to provide a limiting function. Screws are then used to lock the abutment onto the implant, as shown. Figure 3 As shown.

[0003] Since the 20th century, with the popularization of dental implant systems in China, more and more patients have begun to use dental implant systems as a treatment option for missing or damaged teeth. After more than ten years of development and feedback from clinical patients, traditional implant systems have the following pain points that urgently need to be addressed: 1. After the implant is placed in the patient's alveolar bone, it may fall out after 1-2 months of healing, leading to implant failure; 2. To accommodate patients with varying gingival heights, the same abutment needs to be prepared for multiple gingival heights. Having abutments for different gingival heights can lead to difficulties in differentiation, missing sizes, and incorrect sizes during clinical use. Figure 4 As shown; 3. After the abutment is inserted into the implant, it is mainly fixed by screws. Many patients have experienced the screws falling off the implant and the abutment falling off during later use. Patients need to go to the hospital many times for installation, which increases both time and cost. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a novel multifunctional dental implant system. This implant system consists of a stable implant, anti-detachment screws, and a variable abutment, which increases stability and reduces patient risks while maintaining the stability of traditional implant systems.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is: a multifunctional dental implant system, comprising a stable implant, an anti-dislodgement screw, and a variable abutment. The stable implant includes a first step, a second step, and a third step connected sequentially from top to bottom. Each step is cylindrical and arranged in descending order of outer diameter as the first step, the second step, and the third step. Each step is matched to different bone density conditions of the patient. The first step matches Class I bone, the second step matches Class II / III bone, and the third step matches Class IV bone. The variable abutment can change its height to adapt to different gingival heights.

[0006] Preferably, a through hole is provided on the circumferential sidewall of the stable implant, and a deformable support cantilever is fixedly provided on the top wall of the through hole. In the natural state, the outer dimension of the deformable support cantilever corresponds to the outer dimension of the stable implant. The inner side of the deformable support cantilever is an inclined surface, which slopes from top to bottom toward the center of the stable implant.

[0007] Preferably, at least four through holes are arranged in a circular array on the same horizontal plane around the second and third steps, and a deformable support cantilever is fixedly installed in each through hole.

[0008] Preferably, the variable abutment includes a repair section, a transgingival section, and an interface section arranged sequentially from top to bottom. The transgingival section is located between the repair section and the interface section, and the interface section is connected to the stable implant. The transgingival section includes several sleeves, each sleeve having an annular limiting block at its top. Several grooves are formed horizontally on the outer circumferential sidewall of the annular limiting block, and a spring is fixedly installed in each groove. A steel ball is fixedly connected to the end of the spring away from the groove. The upper and lower parts of the inner circumferential sidewall of the sleeve are respectively provided with arc-shaped limiting grooves adapted to the steel ball, and the extension length between two adjacent sleeves is determined by the arc-shaped limiting grooves in the upper and lower parts.

[0009] Preferably, each sleeve has a limiting groove on its inner sidewall in the vertical direction, and a limiting slider adapted to the limiting groove is provided on its outer sidewall.

[0010] Preferably, the lower end of the repair part is retractably sleeved outside the top sleeve, and the upper and lower parts of the inner circumferential sidewall of the lower end of the repair part are respectively provided with arc-shaped limiting grooves adapted to the steel ball, and the inner sidewall of the lower end of the repair part is provided with a limiting slide groove adapted to the limiting slider along the vertical direction.

[0011] Preferably, the upper end of the interface portion is retractably sleeved inside the bottom sleeve, and a plurality of grooves are formed on the outer circumferential sidewall of the top of the interface portion along the horizontal direction. A spring is fixedly installed in each groove, and a steel ball is fixedly connected to the end of the spring away from the groove. A limiting slider adapted to the limiting groove is also provided on the outer circumferential sidewall of the top of the interface portion.

[0012] Preferably, the inner circumference of the variable base interface is provided with a ring of anti-detachment threads, the upper side of the anti-detachment threads is set at an angle, and the lower side of the anti-detachment threads is set at a right angle.

[0013] The present invention has the following beneficial effects: 1. This invention sets the stable implant into a first step, a second step, and a third step with different diameters. Each step matches the patient's different bone density. The first step matches Class I bone, the second step matches Class II / III bone, and the third step matches Class IV bone. Compared with traditional cylindrical implants, the stepped stable implant can adapt to different types of bone by using different step diameters, which can better meet the needs of patients with different bone types and prevent the implant from detaching from the alveolar bone.

[0014] 2. The present invention sets the transgingival portion of the variable abutment as a structure of several sleeves connected together, thereby adjusting the gingival height on the same variable abutment, which can solve the problems of traditional abutment models being numerous, difficult to distinguish, and easy to use incorrectly.

[0015] 3. The present invention provides an anti-loosening thread on the inner circumference of the variable base interface. The upper side of the anti-loosening thread is set at an angle, and the lower side of the anti-loosening thread is set at a right angle. When the anti-loosening screw is locked into the variable base, the anti-loosening screw cannot be removed from the variable base under normal circumstances because the lower side of the anti-loosening thread on the inner circumference of the variable base does not have an angle in the direction of detachment. This can effectively reduce the number of times patients have to go to the hospital and clinic due to screw detachment, thus reducing the time and medical costs for patients. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a conventional combination of implant systems in the background art; Figure 2 This is a structural diagram of the implant morphology in the background art; Figure 3 This is a schematic diagram of a hexagonal structure in the background art, depicting the form of a base. Figure 4 This is a schematic diagram of the hexagonal structure of the implant morphology in the background art; Figure 5 This is a schematic diagram of the gingival height in the abutment morphology of the background art; Figure 6 This serves as a demonstration of various gingival heights for abutments of the same type in the background art; Figure 7 This is a schematic diagram of the overall structure of the implant system of the present invention. (1-a) is a perspective view, (1-b) is a front view, and (1-c) is a cross-sectional view of section AA in (1-b). Figure 8 for Figure 7Enlarged view of the local structure of E in (1-c); Figure 9 Figure 3-a is a three-dimensional view of the base of the present invention, (3-b) is a front view, and (3-c) is a cross-sectional view of section CC in figure (3-b). Figure 10 for Figure 9 Enlarged view of the local structure of D in (3-c); Figure 11 The following is a schematic diagram of the structure of the implant of the present invention: (2-a) is a perspective view, (2-b) is a front view, and (2-c) is a cross-sectional view of section BB in figure (2-b). Figure 12 This is a schematic diagram of the anti-loosening screw of the present invention.

[0017] The labels in the attached diagram are: 1-Variable abutment, 11-Restoration section, 12-Perforation section, 13-Interface section, 14-Anti-dislodgement thread, 121-Sleeve, 122-Steel ball, 123-Spring, 124-Groove, 125-Arc-shaped limiting groove, 126-Limiting slide, 127-Annular limiting block, 2-Stable implant, 21-First step, 22-Second step, 23-Third step, 24-Deformable support cantilever, 25-Through hole, 3-Anti-dislodgement screw, 31-Conventional thread. Detailed Implementation

[0018] 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. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0019] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0020] According to the research progress on the influence of alveolar bone mineral density on implant osseointegration, the Lekholm-Zarb classification method is currently widely used in clinical practice. This classification method divides alveolar bone mineral density under physiological conditions into categories I-IV: Class I bone mineral density: almost entirely composed of cortical bone, with only a very small amount of compact trabecular bone; Class II bone mineral density: A thicker cortex of bone surrounds densely packed trabeculae; Class III bone mineral density: A thin layer of cortical bone surrounding densely packed trabeculae; Class IV bone mineral density: A thin layer of cortical bone surrounding loosely arranged trabeculae.

[0021] like Figure 7-12 As shown, the present invention discloses a multifunctional dental implant system, including a stable implant 2, an anti-dislodgement screw 3, and a variable abutment 1. The upper part of the variable abutment 1 is used to install a dental crown, and the lower part of the variable abutment 1 is inserted into the upper part of the stable implant 2. The anti-dislodgement screw 3 is inserted into the variable abutment 1 and the stable implant 2. The outer periphery of the anti-dislodgement screw 3 is threadedly connected to the inner periphery of the variable abutment 1 and the stable implant 2, thereby fixing the variable abutment 1 onto the stable implant 2.

[0022] like Figure 11 As shown, the stable implant 2 has a stepped shape overall, comprising three steps: step 21, step 22, and step 23 from top to bottom. Each step is cylindrical, and the outer diameters of the three steps are arranged in descending order as follows: step 21, step 22, and step 23. Each step can match the patient's different bone density. Step 21 matches type I bone, with a large contact area and greater force distribution; step 22 matches type II / III bone, with an appropriate contact area and balanced force distribution; and step 23 matches type IV bone, with a small contact area and less force distribution, reducing the risk of dislodgement.

[0023] The design of the stable implant 2 mainly focuses on two aspects: different step diameters and different step heights. For example, assuming that the cavity for implanting the stable implant 2 has a uniform diameter of 3.5mm, the first step 21 of the stable implant 2 has the largest contact area with Class I bone, with a diameter of 4.4-4.6mm, and also bears the greatest force; the second step 22 has a moderate contact area with Class II / III bone, with a diameter of 4.0-4.2mm; and the third step 23 has the smallest contact area with Class IV bone, with a diameter of 3.6-3.8mm. For different step heights, in clinical practice, based on CBCT imaging data of most patients, the Class I bone of young people aged 13-18 years is also called cortical bone. The thickness of Class I bone is usually 1-3 mm. Class II / III bone is usually below Class I bone, with a thickness of about 4-8 mm, while Class IV bone is at the bottom, with a thickness of 9-18 mm. Therefore, the length of the first step 21 of the stable implant 2 is usually 1-3 mm, the length of the second step 22 is usually 4-8 mm, and the length of the third step 23 is usually 9-18 mm.

[0024] In clinical applications, patients' dental bone is usually classified into classes I-IV based on different bone densities. Compared with traditional cylindrical implants, stepped stable implants can adapt to different bone types by using different step diameters, thus better meeting the needs of patients with different bone types.

[0025] Furthermore, the stable implant 2 is equipped with multiple deformable support cantilever 24. Specifically, such as... Figure 7 As shown, at least four through holes 25 are arranged in a circular array around the periphery of the second step 22 and the third step 23. A deformable support cantilever 24 is fixedly installed on the inner top wall of each through hole 25. A certain gap is left between the circumferential side wall of the deformable support cantilever 24 and the inner side wall of the through hole 25. The gap is generally U-shaped, so that the deformable support cantilever 24 will not interfere with the stable implant 2 when it is stretched outward.

[0026] It should be noted that the deformable support cantilever 24 has an elastic function. In its natural state (i.e., when the anti-dislodgement screw 3 is not locked into the stable implant 2), several deformable support cantilever 24s on the same step and at the same horizontal plane form a ring. The outer diameter of this ring corresponds to the outer diameter of the corresponding step, and the inner diameter of the ring is smaller than the inner diameter of the corresponding step. In other words, in its natural state, the inner side of the deformable support cantilever 24 tilts from top to bottom towards the center of the implant. Thus, in the working state (when the anti-dislodgement screw 3 is locked into the stable implant 2), as the anti-dislodgement screw 3 screws downward into the stable implant 2, several deformable support cantilever 24s are forced outward under the squeezing action of the anti-dislodgement screw 3, inserting more deeply into the patient's bone. This increases both the friction and the depth of thread engagement, which can greatly reduce the risk of dislodgement.

[0027] Preferably, the outer periphery of the second step 22 and the third step 23 is provided with four deformable support cantilever arms 24 arranged in a circular array.

[0028] Traditional implants typically achieve stability and prevent dislodgement by spirally screwing them into the bone. In contrast, this invention incorporates 4-8 deformable support cantilever arms 24 at different locations on the implant. When the central screw or cover screw is engaged with the stable implant 2, in addition to the traditional threaded connection, the deformable support cantilever arms 24 are further expanded by the central screw, forming a new engagement to increase stability and prevent dislodgement.

[0029] like Figure 9 and 10As shown, the variable abutment 1 includes a restorative part 11, a transgingival part 12, and an interface part 13 arranged sequentially from top to bottom. The restorative part 11 is used to install a fixed crown. The transgingival part 12 is located between the restorative part 11 and the interface part 13, and the interface part 13 is used to connect to the stable implant 2. The transgingival part 12 includes several sleeves 121, which are arranged coaxially with the restorative part 11 and the interface part 13. Each sleeve 121 has an annular limiting block 127 at its top, which is also coaxially with the sleeve 121. Several cylindrical grooves 124 are formed horizontally on the outer circumferential sidewall of the annular limiting block 127. Each groove 124 contains a spring 123 of a suitable size. One end of spring 123 is fixedly connected to the side wall of groove 124, and the other end of spring 123 is fixedly connected to steel ball 122. The upper and lower parts of the inner circumferential side wall of sleeve 121 are respectively provided with arc-shaped limiting grooves 125 adapted to steel ball 122. The extension length between two adjacent sleeves 121 is determined by the arc-shaped limiting grooves 125 in the upper and lower parts. In order to prevent two adjacent sleeves 121 from falling off, a limiting groove 126 is provided on the inner side wall of each sleeve 121 in the vertical direction, and a limiting slider adapted to the limiting groove 126 is provided on the outer side wall of each sleeve 121. Through the cooperation between the limiting groove 126 and the limiting slider, the sleeves 121 can only move in the vertical direction, and the two adjacent sleeves 121 are prevented from falling off.

[0030] Taking two adjacent sleeves 121 as an example, the working principle of several sleeves 121 is explained as follows: When the sleeves 121 are in the retracted state, the steel ball 122 of the inner (lower) sleeve 121 is located in the upper arc-shaped limiting groove 125 on the outer (upper) sleeve 121. At this time, under the rebound force of the spring 123, the steel ball 122 is pressed into the upper arc-shaped limiting groove 125. At the same time, the upper surface of the annular limiting block 127 of the inner sleeve 121 abuts against the lower surface of the arc-shaped limiting block of the outer sleeve 121; when the sleeves 121 need to be opened... When the outer sleeve 121 is pulled upwards or the inner sleeve 121 is pulled downwards, the spring 123 slides out from the upper arc-shaped limiting groove 125 under the pulling force and moves downwards on the inner wall of the outer sleeve 121. At this time, the limiting slider slides downwards in the limiting groove 126, and the steel ball 122 further compresses the spring 123. When the steel ball 122 moves into the lower arc-shaped limiting groove 125, the pulling of the sleeve 121 stops. At this time, under the rebound force of the spring 123, the steel ball 122 is pressed into the lower arc-shaped limiting groove 125. Throughout the entire process, the spring 123 remains in a compressed state.

[0031] It should be noted that the pulling or compressive force f between the sleeves 121 is mainly provided by the normal force Fn generated by the elastic force of the spring 123 multiplied by the coefficient of friction μ between the steel ball 122 and the side wall. That is, the pulling force f of the sleeve 121 is equal to μ * Fn. Therefore, the springs 123 in the four different sleeves 121 can be designed with different pulling (compression) forces from bottom to top. By increasing the wire diameter and outer diameter of the compression spring 123, the elastic force of the spring 123 can be increased, and by appropriately increasing the size of the steel ball 122, the coefficient of friction μ can also be increased. Therefore, in practice, by designing the elasticity of spring 123 and the size of steel ball 122, the pulling force (compression force) between the four sleeves 121 on the variable base 2 can be made different, and even the pulling force can gradually increase or decrease from bottom to top. Finally, the magnitude of the pulling force (compression force) of different levels of sleeves 121 can be obtained through actual testing, and a suggestion manual can be made. For example, it is necessary to pull open level 1 with a force of 50N, to pull open level 2 with a force of 80N, to pull open level 3 with a force of 110N, and to pull open all of them with a force of 140N. This manual can then be used to provide guidance and training to doctors or nurses.

[0032] The length of the limiting groove 126 corresponds to the moving distance of the steel ball 122. For example, the variable protrusion height of the variable abutment 2 is 2-6 mm, and there are a total of 4 layers of variable sleeves 121. Each time a sleeve 121 is opened, the protrusion height of the variable abutment 2 increases by 1 mm, with a maximum increase of 4 mm. Therefore, the length of the limiting groove 126 is 1 mm, and one limiting groove 126 is distributed on each layer of sleeves 121. This design can be varied according to actual applications.

[0033] Furthermore, the connection between the perforated part 12 and the repair part 11 can be as follows: the lower end of the repair part 11 can be telescopically sleeved outside the top sleeve 121, the upper and lower parts of the inner circumferential sidewall of the lower end of the repair part 11 are respectively provided with arc-shaped limiting grooves 125 adapted to the steel ball 122, and the inner sidewall of the lower end of the repair part 11 is provided with a limiting slide groove 126 adapted to the limiting slider along the vertical direction.

[0034] Furthermore, the connection between the gingival portion 12 and the interface portion 13 can be as follows: the upper end of the interface portion 13 can be telescopically sleeved inside the bottom sleeve 121, and several cylindrical grooves 124 are opened in the horizontal direction on the outer circumferential side wall of the top of the interface portion 13. Each groove 124 is provided with a spring 123 that is adapted to its size. One end of the spring 123 is fixedly connected to the side wall of the groove 124, and the other end of the spring 123 is fixedly connected to the steel ball 122. A limiting slider adapted to the limiting groove 126 is also provided on the outer circumferential side wall of the top of the interface portion 13.

[0035] In the implant system of this invention, the "variable" in the variable abutment 1 refers to the variable gingival height. By designing the structure of the gingival height area, the gingival height becomes extendable, like an umbrella handle, allowing adjustment of the gingival height on the same variable abutment 1. Specifically, when the variable abutment 1 is compressed, the gingival height is 2mm; when the variable abutment 1 is extended, a strong spring 123 pushes a steel ball 122, causing the steel ball 122 to be locked in the extended position, thus forming support, and the gingival height can be extended to 6mm. Using the variable abutment 1 during surgery can solve the problems of traditional abutment models having many options, difficulty in differentiation, and easy misuse.

[0036] Traditional threads are trapezoidal threads with bevels on both the top and bottom. If a traditional threaded connection is used between the locking screw and the variable base 1, the locking screw may easily come off the variable base 1 during use due to the bevels on both sides. To solve this technical problem, such as... Figure 8 As shown, the present invention provides a ring of anti-loosening threads 14 around the inner circumference of the interface portion 13 of the variable base 1. The upper side of the anti-loosening thread 14 is set at an angle, and the lower side of the anti-loosening thread 14 is set at a right angle. The thread on the anti-loosening screw 3 adopts a conventional thread 31 design. When the anti-loosening screw 3 is locked into the variable base 1, the lower side of the anti-loosening thread 14 on the inner circumference of the variable base 1 does not have an angle in the direction of detachment. Under normal circumstances, the anti-loosening screw 3 cannot be removed from the variable base 1, thereby playing a role in preventing detachment. This can effectively reduce the number of times patients have to go to the hospital and clinic due to screw detachment, reducing the patient's time and medical expenses.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A multifunctional dental implant system, characterized in that: The implant includes a stable implant (2), an anti-loosening screw (3), and a variable abutment (1). The stable implant (2) includes a first step (21), a second step (22), and a third step (23) connected from top to bottom. Each step is cylindrical and arranged in descending order of outer diameter as the first step (21), the second step (22), and the third step (23). Each step is matched to the patient's different bone density. The first step (21) matches Class I bone, the second step (22) matches Class II / III bone, and the third step (23) matches Class IV bone. The variable abutment (1) can change its height to adapt to different gingival heights.

2. The multifunctional dental implant system according to claim 1, characterized in that: The diameter of the first step (21) is 4.4-4.6 mm, the diameter of the second step (22) is 4.0-4.2 mm, and the diameter of the third step (23) is 3.6-3.8 mm. And / or, the length of the first step (21) is 1-3 mm, the length of the second step (22) is 4-8 mm, and the length of the third step (23) is 9-18 mm.

3. The multifunctional dental implant system according to claim 1, characterized in that: A through hole (25) is provided on the circumferential side wall of the stable implant (2). A deformable support cantilever (24) is fixedly provided on the top wall of the through hole (25). In the natural state, the outer dimension of the deformable support cantilever (24) corresponds to the outer dimension of the stable implant (2). The inner side of the deformable support cantilever (24) is an inclined surface, which slopes from top to bottom toward the inner center of the stable implant (2).

4. The multifunctional dental implant system according to claim 3, characterized in that: At least four through holes (25) are arranged in a circular array on the same horizontal plane around the second step (22) and the third step (23), and a deformable support cantilever (24) is fixedly installed in each through hole (25).

5. A multifunctional dental implant system according to claim 3, characterized in that: The variable abutment (1) includes a repair section (11), a transgingival section (12), and an interface section (13) arranged sequentially from top to bottom. The transgingival section (12) is located between the repair section (11) and the interface section (13), and the interface section (13) is connected to the stable implant (2). The transgingival section (12) includes a plurality of sleeves (121) that fit together. Each sleeve (121) has an annular limiting block (127) at its top. The annular limiting block (127) has an outer circumferential sidewall. Several grooves (124) are provided along the horizontal direction. A spring (123) is fixedly installed in each groove (124). A steel ball (122) is fixedly connected to the end of the spring (123) away from the groove (124). The upper and lower parts of the inner circumferential sidewall of the sleeve (121) are respectively provided with arc-shaped limiting grooves (125) that are adapted to the steel ball (122). The extension length between two adjacent sleeves (121) is determined by the arc-shaped limiting grooves (125) in the upper and lower parts.

6. A multifunctional dental implant system according to claim 5, characterized in that: The sleeve (121) is set to 4, and the variable gingival height of the variable abutment (2) is 2-6mm.

7. A multifunctional dental implant system according to claim 5, characterized in that: Each sleeve (121) has a limiting groove (126) on its inner sidewall in the vertical direction, and a limiting slider adapted to the limiting groove (126) is provided on its outer sidewall.

8. A multifunctional dental implant system according to claim 7, characterized in that: The lower end of the repair part (11) can be telescopically sleeved outside the top sleeve (121). The upper and lower parts of the inner circumferential sidewall of the lower end of the repair part (11) are respectively provided with arc-shaped limiting grooves (125) adapted to the steel ball (122). The inner sidewall of the lower end of the repair part (11) is provided with a limiting slide groove (126) adapted to the limiting slider along the vertical direction.

9. A multifunctional dental implant system according to claim 8, characterized in that: The upper end of the interface part (13) can be telescopically sleeved inside the bottom sleeve (121). Several grooves (124) are opened on the outer circumferential side wall of the top of the interface part (13) along the horizontal direction. A spring (123) is fixedly installed in each groove (124). A steel ball (122) is fixedly connected to the end of the spring (123) away from the groove (124). A limiting slider adapted to the limiting groove (126) is also provided on the outer circumferential side wall of the top of the interface part (13).

10. A multifunctional dental implant system according to any one of claims 1-9, characterized in that: The inner circumference of the interface part (13) of the variable base (1) is provided with a ring of anti-detachment thread (14), the upper side of the anti-detachment thread (14) is set at an angle, and the lower side of the anti-detachment thread (14) is set at a right angle.

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