A bridge-type implant superstructure combined prosthesis

Abstract

This invention relates to the field of implant bridging technology, specifically to a bridging-type implant superstructure restoration. It includes a support layer structure, which is fixed to the jawbone by a plurality of implant screws rotatably mounted below it. A plurality of crowns are mounted above the support layer structure, with the support layer structure positioned between the crowns and the jawbone. The support layer structure absorbs part of the occlusal impact force generated by the crowns from top to bottom. Fixing components are disposed inside the crowns, securing them above the support layer structure. The fixing components are coaxially arranged with the implant screws. The support layer structure, through the fixing components, restricts the installation orientation of the crowns, ensuring that the crown axis remains parallel to the jawbone surface. The lower and upper clamps of this invention are fixedly connected by two staggered support rods. When the lower and upper clamps approach each other, they compress the two support rods, causing lateral deformation and absorbing the occlusal impact force.

Description

Technical Field

[0001] This invention relates to the field of implant bridge technology, and more specifically, to a bridge-type implant superstructure combined prosthesis. Background Technology

[0002] A dental implant bridge is a structure used to support artificial teeth. It can connect multiple implants and is made of metal or ceramic, resembling a bridge in shape. It is fixed to the implants, providing better support and stability by connecting multiple implants. The implants connecting the bridge are inserted into the jawbone and fuse with the femoral tissue to form a stable support structure. In traditional designs, occlusal impact forces are mainly transmitted directly to the jawbone through the support layer and implant screws. This transmission method easily leads to the concentration of impact forces at the connection point between the implant screws and the jawbone, increasing the risk of implant screw loosening or jawbone damage. Furthermore, the crown is only connected to the support layer by screws, lacking an effective fixation and positioning mechanism. This can cause the crown to rotate or shift during use, affecting the even transmission of occlusal forces and further reducing the stability and lifespan of the restoration. Summary of the Invention

[0003] The purpose of this invention is to provide a bridge-type implant superstructure prosthesis to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a bridge-type implant-supported prosthesis is provided, comprising a support layer structure. A plurality of implant screws are rotatably disposed below the support layer structure, fixing the support layer structure to the jawbone. A plurality of crowns are disposed above the support layer structure. The support layer structure is positioned between the crowns and the jawbone. The support layer structure absorbs part of the occlusal impact force generated by the crowns from top to bottom. Fixing components are disposed inside each crown, fixing the crown to the support layer structure. A plurality of fixing components are coaxially arranged with a plurality of implant screws. The support layer structure restricts the installation orientation of the crowns through the fixing components, ensuring that the axis of the crowns remains parallel to the jawbone surface. The support layer structure absorbs the remaining occlusal impact force transmitted from the crowns to the implant screws from bottom to top. Rotating the fixing components adjusts the impact absorption capacity of the support layer structure. The support layer structure restricts the reverse rotation of the fixing components.

[0005] As a further improvement to this technical solution, the support layer structure includes an outer cover, the bottom of which has several fixing holes. The implant screw is set in the fixing holes and rotates. Tightening the implant screw fixes the bottom of the outer cover onto the jawbone. The occlusal impact force generated by the crown is transmitted to the implant screw through the outer cover and then to the jawbone through the implant screw.

[0006] As a further improvement to this technical solution, the top of the outer cover is provided with several through guide holes, the fixing component includes an intermediate guide seat that is slidably inserted into the guide holes, the outer side wall of the intermediate guide seat is square, the bottom of the crown is provided with a square hole, the crown is inserted into the top of the intermediate guide seat, and the intermediate guide seat restricts the rotation of the crown after fixing.

[0007] As a further improvement to this technical solution, a lower clamping plate is provided inside the outer cover near the bottom, and a rubber strip is provided above the lower clamping plate. The rubber strip absorbs the impact force through its own deformation. An upper clamping plate is provided above the rubber strip, and the upper clamping plate squeezes the top surface of the rubber strip from above.

[0008] As a further improvement to this technical solution, two staggered support rods are fixedly connected between the upper clamping plate and the lower clamping plate. The rubber strip is disposed between the two support rods. When the lower clamping plate and the rubber strip approach each other, they compress the two support rods, causing the support rods to undergo lateral deformation.

[0009] As a further improvement to this technical solution, the top of the upper clamping plate is provided with several positioning holes, and the bottom of the lower clamping plate is provided with a connecting hole corresponding to the positioning holes. A first screw is inserted upward into the connecting hole. The first screw passes through the lower clamping plate, the rubber strip, and the upper clamping plate in sequence. A screw sleeve seat is rotatably fitted on the top of the first screw. Rotating the screw sleeve seat downward causes the bottom of the screw sleeve seat to press down on the upper clamping plate. The screw sleeve seat drives the first screw to slide upward and causes the bottom of the first screw to press up on the lower clamping plate. The lower clamping plate and the upper clamping plate press the rubber strip in the middle, causing the rubber strip to deform.

[0010] As a further improvement to this technical solution, the intermediate guide seat is disposed above the screw sleeve seat, and the inner sidewall of the intermediate guide seat is provided with two threads with opposite helical directions. Rotating the intermediate guide seat downwards causes the intermediate guide seat to be connected to the top of the first screw through the thread, and the rotating intermediate guide seat presses down on the bottom of the first screw.

[0011] 8. The bridge-type implant superstructure restoration according to claim 7, characterized in that: a second screw is provided above the screw sleeve seat, a through mounting hole is provided on the axis of the crown, the second screw is slidably inserted into the interior of the mounting hole, the second screw is provided above the intermediate guide seat, and rotating the second screw downwards causes the bottom of the second screw to be threadedly connected to the intermediate guide seat, and the rotating second screw causes the crown to move downwards closer to the outer cover.

[0012] As a further improvement to this technical solution, a number of anti-reverse blocks are installed in a circular array at the bottom of the threaded sleeve seat. The anti-reverse blocks are configured as hollow wedges with the pointed side of the wedges facing downwards. A number of wedge grooves are provided in a circular array at the bottom of the positioning hole. Rotating the threaded sleeve seat downwards causes the anti-reverse blocks to rotate, causing the anti-reverse blocks to deform longitudinally. The bottom of the deformed anti-reverse blocks is fitted into the wedge grooves. The upper clamping plate prevents the anti-reverse blocks from rotating in the opposite direction through the wedge grooves.

[0013] As a further improvement to this technical solution, the second screw and the screw sleeve seat located above the implant screw are arranged coaxially with the implant screw. The top of the second screw, the screw sleeve seat, and the implant screw are all provided with internal hexagonal mounting slots, and the inner diameter of several internal hexagonal mounting slots gradually decreases from top to bottom. The external thread of the screw sleeve seat is opposite to the helical direction of the external thread of the first screw, and the external thread of the screw sleeve seat is in the same direction as the array direction of the check block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In this bridge-type implant-supported prosthesis, when occlusal force is applied to the crown, the occlusal impact force generated by the crown is first transmitted to the implant screw through the outer cover, and then to the jawbone through the implant screw. At this time, the combination of the lower splint, rubber strip, and upper splint initially absorbs the occlusal impact force. Then, the rubber strip absorbs the impact force through its own deformation. The lower and upper splints squeeze the rubber strip in the middle to further enhance the buffering effect. At the same time, the two support rods undergo lateral deformation when compressed, further absorbing the occlusal impact force, thereby effectively protecting the prosthesis structure and extending its service life.

[0016] 2. In this bridge-type implant superstructure restoration, the crown fits tightly with the square structure on top of the intermediate guide seat through a square hole, ensuring that the occlusal force can be stably transmitted from the crown to the intermediate guide seat. The intermediate guide seat, as a connecting component, further transmits the occlusal force to the lower outer cover. This structural design avoids uneven transmission of occlusal force due to crown rotation or loosening, ensuring the stability of the entire restoration structure. Furthermore, the square structure restricts the crown's rotation on the intermediate guide seat, thus ensuring the crown's stability during use and preventing crown rotation from causing loosening of the restoration structure or uneven transmission of occlusal force. This also helps extend the lifespan of the restoration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a partial structural diagram of the overall structure of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the support layer structure of the present invention;

[0020] Figure 4 This is one of the partial structural schematic diagrams of the support layer structure of the present invention;

[0021] Figure 5 This is a second partial structural schematic diagram of the support layer structure of the present invention;

[0022] Figure 6 This is an exploded view of the connection between the dental crown and the fixation component of the present invention;

[0023] Figure 7 This is one of the partial structural cross-sectional schematic diagrams of the overall structure of the present invention;

[0024] Figure 8 This is a second partial structural cross-sectional view of the overall structure of the present invention;

[0025] Figure 9 This is the third partial structural cross-sectional view of the overall structure of the present invention;

[0026] Figure 10 This is the fourth partial structural cross-sectional view of the overall structure of the present invention.

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. Fixing assembly; 11. First screw; 12. Second screw; 13. Intermediate guide seat; 14. Screw sleeve seat; 15. Anti-reverse block;

[0029] 2. Support layer structure; 21. Outer cover; 211. Guide hole; 22. Lower clamping plate; 221. Connecting hole; 23. Upper clamping plate; 231. Positioning hole; 24. Rubber strip; 25. Support rod;

[0030] 3. Implant screw; 4. Crown; 41. Assembly hole. Detailed Implementation

[0031] 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.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Example 1

[0034] Please see Figures 1-10 As shown, the purpose of this embodiment is to provide a bridge-type implant-supported prosthesis, including a support layer structure 2. Several implant screws 3 are rotatably mounted below the support layer structure 2, fixing the support layer structure 2 to the jawbone. Several crowns 4 are mounted above the support layer structure 2. The support layer structure 2 is positioned between the crowns 4 and the jawbone. Through the support layer structure 2, the prosthesis is connected to the jawbone, serving as a crucial link to ensure the stability of the entire prosthesis. The support layer structure 2 absorbs some of the occlusal impact force generated by the crowns 4 from top to bottom. Through its structural design, the support layer structure 2 can absorb some of the occlusal force, thereby reducing the impact of occlusal force on the jawbone and implants, extending their service life. A fixing component 1 is installed inside the crowns 4, fixing the crowns 4 above the support layer structure 2. Through the fixing component 1, the crowns 4 are firmly fixed above the support layer structure 2, ensuring the stability of the crowns 4 during use and preventing bridging. When the upper part of the frame-type implant restoration becomes loose, several fixation components 1 and several implant screws 3 are coaxially arranged to restrict the installation direction of the crown 4, keeping its axis parallel to the jawbone surface, thus ensuring the stability and aesthetics of the restoration. The support layer structure 2 restricts the installation orientation of the crown 4 through the fixation components 1, keeping the axis of the crown 4 parallel to the jawbone surface. Through the cooperation of the support layer structure 2 and the fixation components 1, the installation direction of the crown 4 is precisely controlled, avoiding uneven force distribution and aesthetic problems caused by tilting. The support layer structure 2 absorbs the remaining occlusal impact force transmitted from the crown 4 to the implant screws 3 from bottom to top. Through the structural design of the support layer structure 2, the remaining occlusal force is further absorbed, reducing the impact of impact force on the implant screws 3 and the jawbone. Rotating the fixation components 1 adjusts the impact absorption capacity of the support layer structure 2 to adapt to different occlusal force conditions, improving the adaptability of the restoration. The support layer structure 2 restricts the reverse rotation of the fixation components 1, ensuring that the fixation components 1 are firmly fixed and preventing loosening and failure.

[0035] Please see Figure 3As shown, the support layer structure 2 includes an outer cover 21, which serves as the basic frame, providing support for the connection of subsequent components and overall stability. Several fixing holes are provided at the bottom of the outer cover 21. These fixing holes provide installation positions for the implant screws 3, enabling the connection between the outer cover 21 and the jawbone and ensuring structural stability. The implant screws 3 rotate within these fixing holes, allowing for angle adjustments during installation. This ensures the implant screws 3 are accurately aligned with their corresponding positions in the jawbone, improving installation flexibility and precision. Tightening the implant screws 3 secures the bottom of the outer cover 21 to the jawbone, ensuring the stability of the entire restoration and preventing loosening during use. The occlusal impact force generated by the crown 4 is transmitted through the outer cover 21 to the implant screws 3, and then to the jawbone. Through the connection between the outer cover 21 and the implant screws 3, the occlusal impact force generated by the crown 4 is progressively transmitted to the jawbone. This structural design effectively disperses occlusal forces, reduces pressure on individual components, and extends the lifespan of the restoration.

[0036] The top of the outer cover 21 has several through guide holes 211 to connect the fixing component 1 to the outer cover 21 and provide a foundation for the installation of subsequent components. The fixing component 1 includes an intermediate guide seat 13 that slides into the guide holes 211 to achieve the initial connection between the fixing component 1 and the outer cover 21. This sliding insertion method facilitates the installation and removal of the intermediate guide seat 13 and allows for position adjustment during installation to ensure the accuracy of the connection. The outer side wall of the intermediate guide seat 13 is square, and the bottom of the crown 4 has a square hole through which the crown 4 is inserted. The top of the seat 13, through the square hole at the bottom of the crown 4, mates with the square structure at the top of the intermediate guide seat 13, to achieve the insertion connection between the crown 4 and the intermediate guide seat 13. This structure not only facilitates installation but also ensures the stable fixation of the crown 4 on the intermediate guide seat 13, preventing it from loosening or shifting during use. After being fixed, the intermediate guide seat 13 restricts the rotation of the crown 4, ensuring the stability of the crown 4 during use. This design can prevent uneven transmission of occlusal force or structural loosening caused by the rotation of the crown 4, thereby improving the reliability and service life of the entire restoration.

[0037] A lower splint 22 is located near the bottom inside the outer cover 21. A rubber strip 24 is placed above the lower splint 22, forming an elastic buffer layer. The rubber strip 24 absorbs and mitigates the impact force by deforming itself. It effectively absorbs and disperses the occlusal impact force, reducing the direct impact of the impact force on the lower structure, such as the lower splint 22 and the jawbone, thus providing a buffer protection. An upper splint 23 is placed above the rubber strip 24, providing a force-applying component for the transmission of occlusal force. The surface-to-surface contact between the upper splint 23 and the rubber strip 24 ensures the effective transmission and dispersion of the impact force. The upper splint 23 presses the top surface of the rubber strip 24 from above, causing the rubber strip 24 to deform, thereby transmitting the occlusal impact force to the rubber strip 24. The elastic properties of the rubber strip 24 are used for absorption and buffering. The upper splint 23 transmits the occlusal impact force to the rubber strip 24 from above, and the elastic deformation of the rubber strip 24 absorbs and disperses the impact force, thus protecting the structural stability of the entire restoration.

[0038] Please see Figure 4 As shown, two staggered support rods 25 are fixedly connected between the upper clamping plate 23 and the lower clamping plate 22, forming a stable support and connection structure. This staggered arrangement enhances the stability of the overall structure and provides a basis for the installation of subsequent components and the dispersion of impact force. A rubber strip 24 is placed between the two support rods 25, allowing the rubber strip 24 to cooperate with the support rods 25. The elastic properties of the support rods 25 are used to further absorb and disperse the biting impact force, while also providing support and positioning for the rubber strip 24. When the lower clamping plate 22 and the rubber strip 24 approach each other, they compress the two support rods 25, causing the support rods 25 to undergo lateral deformation. This deformation can further absorb the biting impact force. The two support rods 25 absorb the impact force, reducing its impact on the entire structure. At the same time, the elastic recovery force of the support rod 25 is used to disperse and alleviate the impact force. The lateral deformation of the support rod 25 further absorbs the occlusal impact force. This dual absorption mechanism, namely the deformation of the rubber strip 24 and the lateral deformation of the support rod 25, can more effectively protect the prosthesis structure and reduce the potential damage of the impact force to the jawbone and implant. The two support rods 25 fix the lower splint 22, the upper splint 23, and the rubber strip 24 inside the outer cover 21, forming an integrated buffer and support structure. This fixing method not only ensures the stability and positional accuracy of each component, but also enhances the structural strength and reliability of the entire prosthesis.

[0039] Please see Figure 9 and Figure 10As shown, the top of the upper clamping plate 23 has several positioning holes 231, providing a positioning and mating structure for the installation of the connecting holes 221. This ensures that the connecting holes 221 can be accurately installed above the upper clamping plate 23, and also provides a foundation for the connection of subsequent components. The bottom of the lower clamping plate 22 has connecting holes 221 at positions corresponding to the positioning holes 231, achieving a precise fit between the lower clamping plate 22 and the upper clamping plate 23. This structural design facilitates installation and fixation, while ensuring a stable connection between the two. A first screw 11 is inserted upward into the interior of the connecting hole 221, connecting the first screw 11 to the lower clamping plate 22. This insertion method facilitates installation and provides a foundation for subsequent adjustment functions. The first screw 11 passes through the lower clamping plate 22, the rubber strip 24, and the upper clamping plate 23 in sequence. This through-type connection method ensures the relative position stability between the components and also improves the transmission of the biting force. The first screw 11 is rotatably fitted with a screw sleeve seat 14 at its top, providing an operating component for the adjustment device. This rotatable fitting method facilitates subsequent adjustment functions by rotating the screw sleeve seat 14. Rotating the screw sleeve seat 14 downwards causes its bottom to press down on the upper clamping plate 23, generating downward pressure. This pressure transmission method can adjust the position of the upper clamping plate 23, thereby affecting the stress state of the entire structure. The screw sleeve seat 14 drives the first screw 11 to slide upwards, and causes the bottom of the first screw 11 to press up on the lower clamping plate 22. This linkage mechanism can adjust the relative position between the lower clamping plate 22 and the upper clamping plate 23, thereby affecting the stress state of the rubber strip 24. The lower clamping plate 22 and the upper clamping plate 23 press the rubber strip 24 towards the middle, causing the rubber strip 24 to undergo initial deformation. This deformation can adjust the prestress state of the rubber strip 24, thereby changing its ability to absorb biting force.

[0040] Please see Figure 9As shown, the intermediate guide seat 13 is positioned above the screw sleeve seat 14, forming a layered structure that provides space for subsequent connection and adjustment functions, ensuring that all components can cooperate in an orderly manner. The inner wall of the intermediate guide seat 13 has two threads with opposite helical directions, achieving a bidirectional threaded connection with the top of the first screw 11. This design provides a more stable connection and allows adjustment of its relative position to the first screw 11 by rotating the intermediate guide seat 13. Rotating the intermediate guide seat 13 downwards connects it to the top of the first screw 11 via threads, achieving a tight connection. This threaded connection method not only ensures a strong connection... Furthermore, the relative position between the intermediate guide seat 13 and the first screw 11 can be precisely adjusted by rotation. The rotating intermediate guide seat 13 presses down on the bottom of the first screw 11, thereby transmitting pressure to the bottom of the first screw 11. This pressure transmission ensures that the first screw 11 maintains a stable position between the lower clamping plate 22, the rubber strip 24, and the upper clamping plate 23, preventing it from loosening and keeping the distance between the upper clamping plate 23 and the lower clamping plate 22 constant. This structural design ensures that the deformation and buffering function of the rubber strip 24 are not affected by the change in the relative position of the upper clamping plate 23 and the lower clamping plate 22 when subjected to biting force, thereby maintaining the stability and reliability of the entire restoration.

[0041] Please see Figure 6 As shown, a second screw 12 is provided above the threaded sleeve seat 14. A through mounting hole 41 is provided axially on the crown 4, providing an installation channel for the second screw 12. This allows the second screw 12 to pass through the crown 4 and connect with other components. This design provides the basis for the connection and adjustment of the entire restoration. The second screw 12 is slidably inserted into the mounting hole 41, achieving a preliminary connection between the second screw 12 and the crown 4. This sliding insertion method facilitates the installation of the second screw 12 and also allows for positional adjustments during installation, ensuring connection accuracy. The second screw 12 is positioned above the intermediate guide seat 13, forming a vertical direction... The connection sequence provides space for subsequent threaded connections, ensuring that the second screw 12 can be effectively connected to the intermediate guide seat 13. Rotating the second screw 12 downwards allows the bottom of the second screw 12 to be threadedly connected to the intermediate guide seat 13. This not only ensures the firmness of the connection but also allows for precise adjustment of the relative position between the second screw 12 and the intermediate guide seat 13. Rotating the second screw 12 causes the crown 4 to press down on the outer cover 21, ensuring close contact between the crown 4 and the outer cover 21. At the same time, it effectively transmits the occlusal force to the outer cover 21 and the structure below, thereby maintaining the stability and reliability of the entire restoration.

[0042] Please see Figure 6 and Figure 10As shown, several anti-reverse blocks 15 are installed in a circular array at the bottom of the threaded sleeve seat 14, forming a uniformly distributed structure. This layout ensures that the anti-reverse blocks 15 are subjected to uniform force during rotation, providing a stable structural foundation for subsequent anti-reverse function. The anti-reverse blocks 15 are hollow wedges with the pointed side facing downwards. This structure allows the anti-reverse blocks 15 to deform longitudinally when subjected to downward pressure. Simultaneously, the shape of the wedge allows it to effectively engage with the wedge groove, providing a structural foundation for preventing reverse rotation. Several wedge grooves are arranged in a circular array at the bottom of the positioning hole 231 to provide engagement positions for the bottom of the anti-reverse blocks 15. This engagement between the wedge grooves and the wedge blocks... It can achieve a one-way locking function to ensure the stability of the structure. Rotating the screw sleeve seat 14 downwards drives the anti-reverse block 15 to rotate and squeeze its bottom. The rotational energy of the screw sleeve seat 14 is converted into the deformation and engagement action of the anti-reverse block 15, causing the anti-reverse block 15 to deform longitudinally. The bottom of the deformed anti-reverse block 15 is engaged in the wedge groove. This engagement relationship can effectively prevent the reverse block 15 from rotating in the opposite direction, thereby realizing the anti-reverse function. The upper clamping plate 23 prevents the reverse block 15 from rotating in the opposite direction through the wedge groove, preventing the screw sleeve seat 14 and the anti-reverse block 15 from loosening or rotating when subjected to reverse force, ensuring the structural stability of the entire restoration, especially under the action of biting force, preventing the components from loosening or failing.

[0043] Please see Figure 9 As shown, the second screw 12 and the screw sleeve 14, located above the implant screw 3, are coaxially aligned with the implant screw 3, ensuring the structural symmetry and stability of the entire restoration. This design allows all components to maintain a consistent force direction during installation and use, preventing structural instability or damage due to eccentricity. The tops of the second screw 12, screw sleeve 14, and implant screw 3 are all provided with hexagonal socket mounting slots, with the inner diameter of several hexagonal socket mounting slots gradually decreasing from top to bottom. This provides a standardized interface for installation tools, facilitating precise turning operations using an Allen wrench. The design allows the installation tool to be inserted into the installation groove more smoothly and stably, preventing slippage during rotation and improving the reliability and efficiency of installation. The external thread of the screw sleeve 14 is opposite to the helical direction of the external thread of the first screw 11, and the external thread of the screw sleeve 14 is in the same direction as the array of the check block 15. This allows the first screw 11 to be pulled upward through the interaction of the threads when the screw sleeve 14 is rotated. At the same time, the fact that the external thread of the screw sleeve 14 is in the same direction as the array of the check block 15 ensures that the rotation of the screw sleeve 14 can drive the check block 15 to deform longitudinally and embed into the wedge groove, thus achieving the check function.

[0044] During installation, first rotate the implant screws 3 from bottom to top. Several implant screws 3 are used to fix the outer cover 21 to the jawbone. By rotating the implant screws 3 first, the connection between them and the jawbone is used to firmly fix the outer cover 21 to the jawbone, providing a stable base for the installation of subsequent components. This bottom-up installation sequence ensures the stability of the base structure and prevents loosening or damage to the structure due to an unstable base during subsequent installation. Then, rotate the screw sleeve seat 14 to press the upper clamp 23 downwards. The first screw 11 is pulled upward to press the lower clamping plate 22, adjusting the deformation of the rubber strip 24 and the support rod 25. By rotating the screw sleeve seat 14, the screw 11 is pulled upward using its threaded connection with the first screw 11. At the same time, the screw sleeve seat 14 presses downward to press the upper clamping plate 23. This dual action adjusts the distance between the lower clamping plate 22 and the upper clamping plate 23, thereby affecting the deformation of the rubber strip 24 and the support rod 25, thus adjusting the buffering capacity of the biting force. Then, the intermediate guide seat 13 is rotated. The bottom of the intermediate guide seat 13 is fixed to the threaded sleeve seat 14, and then the intermediate guide seat 13 is fixed in the positioning hole 231. By rotating the intermediate guide seat 13, it is connected to the threaded sleeve seat 14 through threads, and the intermediate guide seat 13 is firmly fixed to the threaded sleeve seat 14 and further embedded in the positioning hole 231. This connection method not only ensures the stability of the intermediate guide seat 13, but also further enhances the stability of the entire structure through the fixation of the intermediate guide seat 13. Finally, the second screw 12 is rotated to fix the bottom of the second screw 12 inside the intermediate guide seat 13, and the crown 4 is pressed down to fix the crown 4 on the intermediate guide seat 13 and the outer cover 21. By finally rotating the second screw 12 to fix its bottom inside the intermediate guide seat 13, and through the downward pressing action of the second screw 12, the crown 4 is firmly fixed on the intermediate guide seat 13 and the outer cover 21, completing the installation of the entire restoration. This sequence ensures the stable fixation of the crown 4, and also makes the structure of the entire restoration more compact and stable.

[0045] In this embodiment, the lower clamp 22 is installed inside the bottom of the outer cover 21. Then, the rubber strip 24 is placed above the lower clamp 22, followed by the upper clamp 23. Dental adhesive is used to seal the outer cover 21, forming a complete cushioning assembly with the internal components. The lower clamp 22 and upper clamp 23 are fixedly connected by two staggered support rods 25. When the lower clamp 22 and upper clamp 23 approach each other, they compress the two support rods 25. This causes lateral deformation, further absorbing the biting impact force. The first screw 11 is inserted upwards from the connecting hole 221, passing through the lower clamping plate 22, rubber strip 24, and upper clamping plate 23 in sequence. A screw sleeve seat 14 is rotated and fitted onto the top of the first screw 11. The screw sleeve seat 14 is rotated downwards, causing its bottom to press down on the upper clamping plate 23, while simultaneously causing the first screw 11 to slide upwards, so that the bottom of the first screw 11 presses up on the lower clamping plate 22, thereby causing the lower clamping plate 22 and the upper clamping plate 23 to move towards the center. The rubber strip 24 is compressed to induce initial deformation, thereby adjusting its occlusal impact capability. The intermediate guide seat 13 is fitted over the threaded sleeve seat 14. The inner wall of the intermediate guide seat 13 has two threads with opposite directions. The intermediate guide seat 13 is rotated downwards to connect with the top of the first screw 11 via threads, and the intermediate guide seat 13 presses downwards against the bottom of the first screw 11, maintaining a constant distance between the upper clamp 23 and the lower clamp 22. The second screw 12 is slidably inserted into the assembly hole 41, positioned above the intermediate guide seat 13. The second screw 12 is rotated downwards to connect its bottom with the intermediate guide seat 13 via threads, causing the crown 4 to press downwards against the outer cover 21, completing the installation of the entire restoration. The end of the outer cover 21 is then sealed. The outer cover 21 is placed above the jawbone, and the outer cover 21 is fixed to the jawbone by rotating the implant screw 3, ensuring that the bottom of the outer cover 21 fits tightly against the jawbone, forming a stable base structure.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge type superstructure of implant, comprising a support layer structure (2), a plurality of implant screws (3) are rotatably arranged below the support layer structure (2), the implant screws (3) fix the support layer structure (2) on the jaw bone, a plurality of crowns (4) are arranged above the support layer structure (2), and the support layer structure (2) is arranged between the crowns (4) and the jaw bone, characterized in that: The support layer structure (2) absorbs part of the occlusal impact force generated by the crown (4) from top to bottom, the inside of the crown (4) is provided with a fixing assembly (1), the fixing assembly (1) fixes the crown (4) above the support layer structure (2), a plurality of fixing assemblies (1) are coaxially arranged with a plurality of implant screws (3), the support layer structure (2) limits the installation direction of the crown (4) through the fixing assembly (1), so that the axis of the crown (4) is parallel to the jaw surface, the support layer structure (2) absorbs the remaining occlusal impact force transmitted from the crown (4) to the implant screw (3) from bottom to top, the impact absorbing capacity of the support layer structure (2) is adjusted by rotating the fixing assembly (1), and the support layer structure (2) limits the reverse rotation of the fixing assembly (1); ​ The support layer structure (2) comprises an outer cover (21), a plurality of fixing holes are formed in the bottom of the outer cover (21), the implant screw (3) is arranged in the fixing hole and rotates, and the bottom of the outer cover (21) is fixedly installed on the jaw bone by screwing the implant screw (3), the occlusal impact force generated by the crown (4) is transmitted to the implant screw (3) through the outer cover (21) and is transmitted to the jaw bone through the implant screw (3); The inner bottom of the outer cover (21) is provided with a lower clamping plate (22), the upper side of the lower clamping plate (22) is provided with a rubber strip (24), the rubber strip (24) absorbs the impact force by deforming itself, the upper side of the rubber strip (24) is provided with an upper clamping plate (23), and the upper clamping plate (23) extrudes the top surface of the rubber strip (24) from the upper side; The upper clamping plate (23) and the lower clamping plate (22) are fixedly connected with two staggered support rods (25), the rubber strip (24) is arranged between the two support rods (25), and the lower clamping plate (22) and the rubber strip (24) extrude the two support rods (25) when they are close to each other, so that the support rods (25) are transversely deformed.

2. The bridge-type superstructure implant prosthesis according to claim 1, characterized in that: The top of the outer cover (21) is provided with a plurality of penetrating guide holes (211), the fixing assembly (1) comprises an intermediate guide seat (13) which is slidingly inserted into the guide hole (211), the outer side wall of the intermediate guide seat (13) is square, the bottom of the crown (4) is provided with a square hole, the crown (4) is inserted into the top of the intermediate guide seat (13), and the intermediate guide seat (13) limits the rotation of the crown (4) after being fixed.

3. The bridge-type superstructure implant prosthesis according to claim 1, characterized in that: The top of the upper clamping plate (23) is provided with a plurality of positioning holes (231), the bottom of the lower clamping plate (22) is provided with a connecting hole (221) corresponding to the position of the positioning hole (231), the inside of the connecting hole (221) is upwardly inserted with a first screw rod (11), the first screw rod (11) penetrates the lower clamping plate (22), the rubber strip (24) and the upper clamping plate (23) in sequence, the top of the first screw rod (11) is rotatably sleeved with a screw sleeve seat (14), and downward rotation of the screw sleeve seat (14) makes the bottom of the screw sleeve seat (14) downwardly press the upper clamping plate (23); the screw sleeve seat (14) drives the first screw rod (11) to slide upwardly, and the bottom of the first screw rod (11) upwardly presses the lower clamping plate (22); the lower clamping plate (22) and the upper clamping plate (23) press the rubber strip (24) toward the middle, so that the rubber strip (24) is deformed.

4. The bridge-type superstructure combined implant restoration according to claim 3, characterized in that: The intermediate guide seat (13) is arranged above the screw sleeve seat (14), the inner side wall of the intermediate guide seat (13) is provided with two threads with opposite screw directions, and downward rotation of the intermediate guide seat (13) makes the intermediate guide seat (13) be connected with the top of the first screw rod (11) through threads; the rotating intermediate guide seat (13) downwardly presses the bottom of the first screw rod (11).

5. The bridge-type superstructure combined implant restoration according to claim 4, characterized in that: The screw sleeve seat (14) is provided with a second screw rod (12) above, the axis of the dental crown (4) is provided with a penetrating assembly hole (41), the second screw rod (12) is slidably inserted into the inside of the assembly hole (41), the second screw rod (12) is arranged above the intermediate guide seat (13), downward rotation of the second screw rod (12) makes the bottom of the second screw rod (12) be connected with the intermediate guide seat (13) through threads; the rotating second screw rod (12) makes the dental crown (4) downwardly approach the outer cover (21).

6. The bridge-type superstructure combined implant restoration according to claim 5, characterized in that: The bottom of the screw sleeve seat (14) is annularly arranged with a plurality of reverse-stopping blocks (15), the reverse-stopping blocks (15) are arranged as middle hollow wedges, the sharp side of the wedge faces downward, the bottom of the positioning hole (231) is annularly arranged with a plurality of wedge grooves, downward rotation of the screw sleeve seat (14) drives the reverse-stopping blocks (15) to rotate, so that the reverse-stopping blocks (15) are longitudinally deformed; the bottom of the deformed reverse-stopping blocks (15) is embedded in the wedge grooves, and the upper clamping plate (23) prevents the reverse-stopping blocks (15) from reversely rotating through the wedge grooves.

7. The bridge-type superstructure implant-supported prosthesis according to claim 6, characterized in that: The second screw rod (12), the screw sleeve seat (14) and the implant screw (3) are coaxially arranged above the implant screw (3), the top of the second screw rod (12), the screw sleeve seat (14) and the implant screw (13) is provided with an internal hexagonal mounting groove, the inner diameters of the plurality of internal hexagonal mounting grooves gradually decrease from top to bottom, the threads outside the screw sleeve seat (14) and the threads outside the first screw rod (11) have opposite screw directions, and the threads outside the screw sleeve seat (14) and the array direction of the reverse-stopping blocks (15) are the same.

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