Upper combined prosthesis of bridge type implant

Abstract

The invention relates to the technical field of planting bridges, in particular to a bridge type implant upper combined prosthesis. The dental implant comprises a supporting layer structure, the supporting layer structure is fixed on a jaw bone through a plurality of implant screws rotationally arranged below the supporting layer structure, a plurality of dental crowns are arranged above the supporting layer structure, the supporting layer structure is arranged between the dental crowns and the jaw bone, and the supporting layer structure absorbs part of occlusion impact force generated by the dental crowns from top to bottom. Fixing assemblies are arranged in the dental crown, the dental crown is fixed above the supporting layer structure by the fixing assemblies, the plurality of fixing assemblies and the plurality of implant screws are coaxially arranged, and the supporting layer structure limits the mounting direction of the dental crown through the fixing assemblies, so that the axis of the dental crown is parallel to the jaw bone surface. The lower clamping plate and the upper clamping plate are fixedly connected through the two staggered supporting rods, and when the lower clamping plate and the upper clamping plate get close to each other, the two supporting rods can be extruded to generate transverse deformation, and the occlusion impact force is absorbed.

Description

Technical Field

[0001] The present invention relates to the technical field of implant bridges, and more particularly to an upper combined prosthesis of a bridge-type implant. Background Art

[0002] An implant bridge is a structure used to support artificial teeth. It can be used to connect multiple implants and is made of metal or ceramic materials, similar to the shape of a bridge. It can be fixed on the implants. By connecting multiple implants, it provides better support and stability. The implants connected to the bridge are implanted into the jawbone and fused with the femoral tissue to form a stable support structure. In traditional designs, the occlusal impact force is mainly transmitted directly to the jawbone through the support layer and the implant screws. This transmission method easily causes the impact force to concentrate on the connection part between the implant screws and the jawbone, increasing the risk of implant screw loosening or jawbone damage; and only screws are used to connect the dental crown and the support layer, lacking an effective fixing and positioning mechanism, which will cause the dental crown to rotate or shift during use, thus affecting the uniform transmission of the occlusal force and further reducing the stability and service life of the prosthesis. Summary of the Invention

[0003] The purpose of the present invention is to provide an upper combined prosthesis of a bridge-type implant to solve the problems raised in the above background art.

[0004] To achieve the above purpose, an upper combined prosthesis of a bridge-type implant is provided, including a support layer structure. Several implant screws are rotatably arranged below the support layer structure. The implant screws fix the support layer structure on the jawbone. Several dental crowns are arranged above the support layer structure. The support layer structure is arranged between the dental crowns and the jawbone. The support layer structure absorbs part of the occlusal impact force generated by the dental crowns from top to bottom. A fixing component is arranged inside the dental crowns. The fixing component fixes the dental crowns above the support layer structure. Several of the fixing components are coaxially arranged with several implant screws. The support layer structure restricts the installation orientation of the dental crowns through the fixing components, so that the axes of the dental crowns are parallel to the jawbone surface. The support layer structure absorbs the remaining occlusal impact force transmitted from the dental crowns to the implant screws from bottom to top. Rotate the fixing component to adjust the impact absorption ability of the support layer structure. The support layer structure restricts the reverse rotation of the fixing component.

[0005] As a further improvement of this technical solution, the support layer structure includes an outer cover. Several fixing holes are opened at the bottom of the outer cover. The implant screws are arranged to rotate in the fixing holes. Tighten the implant screws to fixedly install the bottom of the outer cover on the jawbone. The occlusal impact force generated by the dental crowns is transmitted to the implant screws through the outer cover and then transmitted to the jawbone through the implant screws.

[0006] As a further improvement of this technical solution, a plurality of through guiding holes are opened at the top of the outer cover. The fixing component includes an intermediate guiding seat slidably inserted into the guiding holes. The outer side wall of the intermediate guiding seat is square. A square hole is opened at the bottom of the dental crown. The dental crown is inserted into the top of the intermediate guiding seat. The intermediate guiding seat restricts the rotation of the dental crown after being fixed.

[0007] As a further improvement of this technical solution, a lower clamping plate is arranged at a position close to the bottom inside the outer cover. A rubber strip is arranged above the lower clamping plate. The rubber strip absorbs the impact force through its own deformation. An upper clamping plate is arranged above the rubber strip. The upper clamping plate presses the top surface of the rubber strip from above.

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

[0009] As a further improvement of this technical solution, a plurality of positioning holes are opened at the top of the upper clamping plate. Connecting holes are opened at positions corresponding to the positioning holes at the bottom of the lower clamping plate. A first screw rod is inserted upward into the inside of the connecting hole. The first screw rod sequentially penetrates through the lower clamping plate, the rubber strip, and the upper clamping plate. A screw sleeve seat is rotatably sleeved on the top of the first screw rod. Rotating the screw sleeve seat downward causes the bottom of the screw sleeve seat to press the upper clamping plate downward. The screw sleeve seat drives the first screw rod to slide upward, and the bottom of the first screw rod presses the lower clamping plate upward. The lower clamping plate and the upper clamping plate squeeze the rubber strip toward the middle, causing the rubber strip to deform.

[0010] As a further improvement of this technical solution, the intermediate guiding seat is arranged above the screw sleeve seat. Two screw threads with opposite spiral directions are arranged on the inner side wall of the intermediate guiding seat. Rotating the intermediate guiding seat downward causes the intermediate guiding seat to be threadedly connected to the top of the first screw rod through the screw thread. The rotating intermediate guiding seat presses the bottom of the first screw rod downward.

[0011] 8. The bridge - type implant upper combined restoration according to claim 7, wherein: a second screw rod is arranged above the screw sleeve seat. A through assembly hole is opened on the axis of the dental crown. The second screw rod is slidably inserted into the inside of the assembly hole. The second screw rod is arranged above the intermediate guiding seat. Rotating the second screw rod downward causes the bottom of the second screw rod to be threadedly connected to the intermediate guiding seat through the screw thread. The rotating second screw rod causes the dental crown to approach the outer cover downward.

[0012] As a further improvement of the technical solution, a number of anti-reverse blocks are annularly arrayed and installed at the bottom of the screw sleeve seat. The anti-reverse blocks are set as wedge blocks with a hollow middle. The side with the tip of the wedge block is set downward. A number of wedge grooves are annularly arrayed at the bottom of the positioning hole. Rotating the screw sleeve seat downward drives the anti-reverse blocks to rotate, causing the anti-reverse blocks to generate longitudinal deformation. The bottom of the deformed anti-reverse blocks is fitted in the wedge grooves, and the upper clamping plate prevents the reverse blocks from rotating in the reverse direction through the wedge grooves.

[0013] As a further improvement of the technical solution, the second screw, the screw sleeve seat located above the implant screw are coaxially arranged with the implant screw. Inner hexagon mounting grooves are opened at the tops of the second screw, the screw sleeve seat, and the implant screw, and the inner diameters of a number of the inner hexagon mounting grooves gradually decrease from top to bottom. The thread direction of the outer part of the screw sleeve seat is opposite to the thread direction of the outer part of the first screw, and the thread direction of the outer part of the screw sleeve seat is the same as the array direction of the anti-reverse blocks.

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

[0015] 1. In this bridge-type implant upper combined prosthesis, when the occlusal force acts on the crown, the occlusal impact force generated by the crown is first transmitted to the implant screw through the outer cover and then transmitted to the jawbone through the implant screw. At this time, the occlusal impact force is initially absorbed by the combination of the lower clamping plate, the rubber strip, and the upper clamping plate. Then, the rubber strip absorbs the impact force through its own deformation. The lower clamping plate and the upper clamping plate squeeze the rubber strip towards the middle, further enhancing the buffering effect. At the same time, the two support rods generate lateral deformation when being squeezed, further absorbing the occlusal impact force, thereby effectively protecting the structure of the prosthesis and extending its service life.

[0016] 2. In this bridge-type implant upper combined prosthesis, the crown is tightly fitted with the square structure at the top of the middle guiding seat through the square hole to ensure that the occlusal force can be stably transmitted from the crown to the middle guiding seat. As a connecting component, the middle guiding seat will further transmit the occlusal force to the outer cover below. This structural design avoids the uneven transmission of the occlusal force caused by the rotation or loosening of the crown, ensures the stability of the entire prosthesis structure, and with the aid of the cooperation of this square structure, can limit the rotation of the crown on the middle guiding seat, thereby ensuring the stability of the crown during use, preventing the loosening of the prosthesis structure or the uneven transmission of the occlusal force caused by the rotation of the crown, which also helps to extend the service life of the prosthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

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

[0019] Figure 3 Partial structural sectional view of the support layer structure of the present invention;

[0020] Figure 4 One of the partial structural diagrams of the support layer structure of the present invention;

[0021] Figure 5 Another partial structural diagram of the support layer structure of the present invention;

[0022] Figure 6 Exploded view of the connection between the dental crown and the fixing component of the present invention;

[0023] Figure 7 One of the partial structural sectional views of the overall structure of the present invention;

[0024] Figure 8 Another partial structural sectional view of the overall structure of the present invention;

[0025] Figure 9 Another partial structural sectional view of the overall structure of the present invention;

[0026] Figure 10 Another partial structural sectional view of the overall structure of the present invention.

[0027] The meanings of each label in the figure are as follows:

[0028] 1. Fixing component; 11. First screw; 12. Second screw; 13. Intermediate guiding seat; 14. Screw sleeve seat; 15. Anti-backflow block;

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

[0030] 3. Implant screw; 4. Dental crown; 41. Assembly hole. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] Embodiment 1

[0034] Please refer to Figures 1 - 10 As shown, the purpose of this embodiment is to provide an upper combined prosthesis for a bridge-type implant, including 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 jawbone. A plurality of dental crowns 4 are arranged above the support layer structure 2. The support layer structure 2 is arranged between the dental crowns 4 and the jawbone. Through the arrangement of the support layer structure 2, the connection between the prosthesis and the jawbone is realized, and at the same time, it plays a connecting role between the upper and lower parts to ensure the stability of the entire prosthesis. The support layer structure 2 absorbs part of the occlusal impact force generated by the dental crowns 4 from top to bottom. Through the structural design of the support layer structure 2, part of the occlusal force can be absorbed, thereby reducing the impact of the occlusal force on the jawbone and the implant, and prolonging the service life. A fixing component 1 is arranged inside the dental crowns 4. The fixing component 1 fixes the dental crowns 4 above the support layer structure 2. Through the arrangement of the fixing component 1, the dental crowns 4 are firmly fixed above the support layer structure 2 to ensure the stability of the dental crowns 4 during use and prevent the upper combined prosthesis of the bridge-type implant from loosening. A plurality of fixing components 1 and a plurality of implant screws 3 are coaxially arranged to limit the installation direction of the dental crowns 4, so that their axes are parallel to the jawbone surface, ensuring the stability and aesthetics of the prosthesis. The support layer structure 2 restricts the installation orientation of the dental crowns 4 through the fixing component 1, so that the axes of the dental crowns 4 are parallel to the jawbone surface. Through the cooperation of the support layer structure 2 and the fixing component 1, the installation direction of the dental crowns 4 is accurately controlled to avoid problems of uneven force and aesthetics caused by inclination. The support layer structure 2 absorbs the remaining occlusal impact force transmitted from the dental crowns 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 to reduce the impact on the implant screws 3 and the jawbone. The impact absorption ability of the support layer structure 2 is adjusted by rotating the fixing component 1 to adapt to different occlusal force conditions and improve the adaptability of the prosthesis. The support layer structure 2 restricts the reverse rotation of the fixing component 1 to ensure the firm fixation of the fixing component 1 and avoid loosening and failure.

[0035] Please refer to Figure 3As shown, the support layer structure 2 includes an outer cover 21. The outer cover 21 is a basic framework that provides support for the connection of subsequent components and the overall stability. A number of fixing holes are provided at the bottom of the outer cover 21. By setting the fixing holes at the bottom of the outer cover 21, an installation position is provided for the implant screw 3, realizing the connection between the outer cover 21 and the jawbone, ensuring the fixation of the structure. The implant screw 3 is arranged to rotate in the fixing hole. Through the rotational arrangement of the implant screw 3 in the fixing hole, angle adjustment is allowed during the installation process, ensuring that the implant screw 3 can accurately align with the corresponding position in the jawbone, improving the flexibility and accuracy of the installation. Tighten the implant screw 3 to fixedly install the bottom of the outer cover 21 on the jawbone, ensuring the stability of the entire prosthesis and preventing loosening during use. The occlusal impact force generated by the dental crown 4 is transmitted to the implant screw 3 through the outer cover 21 and then transmitted to the jawbone through the implant screw 3. Through the connection between the outer cover 21 and the implant screw 3, the occlusal impact force generated by the dental crown 4 is gradually transmitted to the jawbone. This structural design can effectively disperse the occlusal force, reduce the pressure on individual components, and extend the service life of the prosthesis.

[0036] A number of through guiding holes 211 are provided at the top of the outer cover 21 to realize the connection between the fixing component 1 and the outer cover 21 and provide a basis for the installation of subsequent components at the same time. The fixing component 1 includes an intermediate guiding seat 13 slidably inserted into the guiding holes 211 to realize the preliminary connection between the fixing component 1 and the outer cover 21. This sliding insertion method facilitates the installation and disassembly of the intermediate guiding seat 13 and allows position adjustment during the installation process to ensure the accuracy of the connection. The outer side wall of the intermediate guiding seat 13 is square. A square hole is provided at the bottom of the dental crown 4. The dental crown 4 is inserted on the top of the intermediate guiding seat 13. Through the cooperation between the square hole at the bottom of the dental crown 4 and the square structure at the top of the intermediate guiding seat 13, the plug-in connection between the dental crown 4 and the intermediate guiding seat 13 is realized. This structure is not only convenient for installation but also can ensure the stable fixation of the dental crown 4 on the intermediate guiding seat 13, preventing it from loosening or shifting during use. The intermediate guiding seat 13 restricts the rotation of the dental crown 4 after fixation, ensuring the stability of the dental crown 4 during use. This design can prevent uneven transmission of the occlusal force or structural loosening caused by the rotation of the dental crown 4, thereby improving the reliability and service life of the entire prosthesis.

[0037] Inside the outer cover 21, near the bottom, a lower clamping plate 22 is provided. Above the lower clamping plate 22, a rubber strip 24 is provided, forming an elastic buffer layer. Utilizing the characteristics of the rubber strip 24 to absorb and relieve the impact force, the rubber strip 24 absorbs the impact force through its own deformation, can effectively absorb and disperse the occlusal impact force, reduce the direct action of the impact force on the lower structure such as the lower clamping plate 22 and the jawbone, and play a role of buffer protection. Above the rubber strip 24, an upper clamping plate 23 is provided, providing a force - applying component for the transmission of the biting force. At the same time, the surface - to - surface contact mode between the upper clamping plate 23 and the rubber strip 24 can ensure the effective transmission and dispersion of the impact force. The upper clamping plate 23 squeezes 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, and using the elastic characteristics of the rubber strip 24 to absorb and buffer it. The upper clamping plate 23 transmits the occlusal impact force to the rubber strip 24 from above, and uses the elastic deformation of the rubber strip 24 to absorb and disperse the impact force, thereby protecting the structural stability of the entire prosthesis.

[0038] Please refer to 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 can enhance the overall structural stability, and at the same time provide a basis for the installation of subsequent components and the dispersion of the impact force. The rubber strip 24 is arranged between the two support rods 25, enabling the rubber strip 24 to cooperate with the support rods 25, using the elastic characteristics of the support rods 25 to further absorb and disperse the occlusal impact force, and at the same time providing support and positioning for the rubber strip 24. When the lower clamping plate 22 and the rubber strip 24 approach each other, they squeeze the two support rods 25, causing the support rods 25 to have a lateral deformation. This deformation can further absorb the occlusal impact force, reduce the impact of the impact force on the entire structure, and at the same time use the elastic restoring force of the support rods 25 to disperse and relieve the impact force. Through the lateral deformation of the support rods 25, the occlusal impact force is further absorbed. This dual absorption mechanism, that is, the deformation of the rubber strip 24 and the lateral deformation of the support rods 25, can more effectively protect the prosthesis structure and reduce the potential damage to the jawbone and implants. The two support rods 25 fix the lower clamping plate 22, the upper clamping plate 23, and the rubber strip 24 inside the outer cover 21, forming an integral buffer and support structure. This fixing method not only ensures the stability and position accuracy of each component, but also enhances the structural strength and reliability of the entire prosthesis.

[0039] Please refer to Figure 9 and Figure 10As shown in the figure, a number of positioning holes 231 are provided at the top of the upper clamping plate 23, providing a positioning and mating structure for the installation of the connecting holes 221, ensuring that the connecting holes 221 can be accurately installed above the upper clamping plate 23, and at the same time providing a basis for the connection of subsequent components. At the position corresponding to the positioning holes 231 at the bottom of the lower clamping plate 22, connecting holes 221 are provided to achieve the precise mating of the lower clamping plate 22 and the upper clamping plate 23. This structural design is convenient for installation and fixation, and at the same time ensures the stable connection between the two. A first screw 11 is inserted upward into the interior of the connecting hole 221 to achieve the connection between the first screw 11 and the lower clamping plate 22. This insertion method is convenient for installation and at the same time provides a basis for subsequent adjustment functions. The first screw 11 sequentially penetrates through the lower clamping plate 22, the rubber strip 24, and the upper clamping plate 23. This penetrating connection method can ensure the relative positions of the various components are stable and at the same time provide a path for the transmission of the biting force. A screw sleeve seat 14 is rotatably sleeved on the top of the first screw 11, providing an operating component for the adjustment device. This rotatable sleeving method is convenient for realizing subsequent adjustment functions by rotating the screw sleeve seat 14. Rotating the screw sleeve seat 14 downward causes the bottom of the screw sleeve seat 14 to press downward on the upper clamping plate 23, generating a 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 upward, and the bottom of the first screw 11 presses upward on the lower clamping plate 22. This linkage mechanism can adjust the relative positions 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 squeeze the rubber strip 24 toward the middle, causing an initial deformation of the rubber strip 24. This deformation can adjust the prestress state of the rubber strip 24, thereby changing its biting force absorption ability.

[0040] Please refer to Figure 9As shown, the middle guiding seat 13 is arranged above the screw sleeve seat 14, forming a layered structure, providing a spatial layout for subsequent connection and adjustment functions, ensuring the orderly cooperation of each component. The inner side wall of the middle guiding seat 13 is provided with two threads with opposite spiral directions, realizing a bidirectional threaded connection with the top of the first screw rod 11. This design can provide a more stable connection method, and at the same time allows the relative position between the middle guiding seat 13 and the first screw rod 11 to be adjusted by rotating the middle guiding seat 13. Rotating the middle guiding seat 13 downward makes the middle guiding seat 13 and the top of the first screw rod 11 connected by threads, realizing the tight connection between the two. This threaded connection method can not only ensure the firmness of the connection, but also precisely adjust the relative position between the middle guiding seat 13 and the first screw rod 11 by rotation. The rotating middle guiding seat 13 presses downward on the bottom of the first screw rod 11, and then transfers the pressure to the bottom of the first screw rod 11. This pressure transfer can ensure that the first screw rod 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 unchanged. This structural design can ensure that when the rubber strip 24 is subjected to the biting force, its deformation and buffering functions are not affected by the relative position change between the upper clamping plate 23 and the lower clamping plate 22, thus maintaining the stability and reliability of the entire prosthesis.

[0041] Please refer to Figure 6 As shown, a second screw rod 12 is arranged above the screw sleeve seat 14. A through assembly hole 41 is axially opened in the dental crown 4, providing an installation channel for the second screw rod 12, enabling the second screw rod 12 to pass through the dental crown 4 and connect with other components. This design provides a basis for the connection and adjustment of the entire prosthesis. The second screw rod 12 is slidably inserted inside the assembly hole 41, realizing the preliminary connection between the second screw rod 12 and the dental crown 4. This slidable insertion method facilitates the installation of the second screw rod 12 and also allows position adjustment during the installation process to ensure the accuracy of the connection. The second screw rod 12 is arranged above the middle guiding seat 13, forming a vertical connection sequence, providing space for subsequent threaded connection, and ensuring that the second screw rod 12 can be effectively connected with the middle guiding seat 13. Rotating the second screw rod 12 downward makes the bottom of the second screw rod 12 connected with the middle guiding seat 13 by threads, which can not only ensure the firmness of the connection, but also precisely adjust the relative position between the second screw rod 12 and the middle guiding seat 13 by rotating the second screw rod 12. The rotating second screw rod 12 makes the dental crown 4 press downward on the outer cover 21, which can ensure the close contact between the dental crown 4 and the outer cover 21, and at the same time effectively transfer the biting force to the outer cover 21 and the underlying structure, thus maintaining the stability and reliability of the entire prosthesis.

[0042] Please refer to Figure 6 and Figure 10As shown, a number of anti-reverse blocks 15 are installed in a bottom annular array of the sleeve seat 14 to form a uniformly distributed structure. This layout can ensure that the anti-reverse blocks 15 are evenly stressed during rotation, providing a stable structural basis for the subsequent anti-reverse function. The anti-reverse block 15 is set as a wedge block with a hollow middle, and the pointed side of the wedge block is arranged downward. This structure can generate longitudinal deformation when the anti-reverse block 15 is subjected to a downward pressure. At the same time, the shape of the wedge block enables it to form an effective fit with the wedge groove, providing a structural basis for preventing reverse rotation. A number of wedge grooves are arranged in a bottom annular array at the bottom of the positioning hole 231 to provide a fitting position for the bottom of the anti-reverse block 15. The cooperation between this wedge groove and the wedge block can achieve a one-way locking function, ensuring the stability of the structure. Rotating the sleeve seat 14 downward drives the anti-reverse block 15 to rotate and squeezes its bottom, utilizing the rotational energy of the sleeve seat 14 to be converted into the deformation and fitting actions of the anti-reverse block 15, causing the anti-reverse block 15 to generate longitudinal deformation. The bottom of the deformed anti-reverse block 15 is fitted in the wedge groove. This fitting relationship can effectively prevent the reverse rotation of the anti-reverse block 15, thereby realizing the anti-reverse function. The upper clamping plate 23 prevents the reverse rotation of the anti-reverse block 15 through the wedge groove, preventing the sleeve seat 14 and the anti-reverse block 15 from loosening or rotating back when subjected to a reverse force, ensuring the structural stability of the entire prosthesis, especially preventing the components from loosening or failing under the bite force.

[0043] Please refer to Figure 9 As shown, the second screw 12, the sleeve seat 14 located above the implant screw 3, and the implant screw 3 are coaxially arranged, ensuring the structural symmetry and stability of the entire prosthesis. This design enables each component to maintain a consistent force direction during installation and use, avoiding structural instability or damage caused by eccentricity. Inner hexagon mounting grooves are provided at the tops of the second screw 12, the sleeve seat 14, and the implant screw 3, and the inner diameters of a number of inner hexagon mounting grooves gradually decrease from top to bottom, providing a standardized interface for the installation tool, facilitating precise rotation operations using an inner hexagon wrench. The design of the inner diameter gradually decreasing from top to bottom enables the installation tool to be more smoothly and stably embedded in the mounting groove, preventing slipping during rotation, and improving the reliability and efficiency of installation. The thread direction of the outside of the sleeve seat 14 is opposite to the thread direction of the outside of the first screw 11, and the thread direction of the outside of the sleeve seat 14 is the same as the array direction of the anti-reverse blocks 15. When the sleeve seat 14 is rotated, the upward pulling of the first screw 11 can be achieved through the interaction of the threads. At the same time, due to the same thread direction of the outside of the sleeve seat 14 and the array direction of the anti-reverse blocks 15, it is ensured that the rotation of the sleeve seat 14 can drive the anti-reverse blocks 15 to generate longitudinal deformation and be embedded in the wedge grooves, realizing the anti-reverse function.

[0044] During installation, first rotate the implant screw 3 from bottom to top. Fix the outer cover 21 to the jawbone through several implant screws 3. By first rotating the implant screw 3 and utilizing its connection with the jawbone, firmly fix the outer cover 21 to the jawbone, providing a stable base for the installation of subsequent components. This bottom-up installation sequence can ensure the stability of the basic structure and prevent structural looseness or damage caused by unstable foundation during subsequent installation. Then rotate the sleeve seat 14 so that the sleeve seat 14 presses down on the upper splint 23 and pulls the first screw rod 11 upward to press on the lower splint 22, adjusting the deformation of the rubber strip 24 and the support rod 25. By rotating the sleeve seat 14 and utilizing its threaded connection with the first screw rod 11, achieve the upward pulling of the first screw rod 11. At the same time, the sleeve seat 14 presses down on the upper splint 23. This dual effect can adjust the distance between the lower splint 22 and the upper splint 23, thereby affecting the deformation of the rubber strip 24 and the support rod 25, and thus realizing the adjustment of the bite force buffering ability. Then rotate the middle guide seat 13 and fix the bottom of the middle guide seat 13 to the sleeve seat 14, and then fix the middle guide seat 13 in the positioning hole 231. By rotating the middle guide seat 13, making it threadedly connected with the sleeve seat 14, firmly fix the middle guide seat 13 to the sleeve seat 14 and further embed it in the positioning hole 231. This connection method not only ensures the stability of the middle guide seat 13, but also further strengthens the stability of the entire structure through the fixation of the middle guide seat 13. Finally, rotate the second screw rod 12, fix the bottom of the second screw rod 12 inside the middle guide seat 13, and press down on the dental crown 4 to fix the dental crown 4 to the middle guide seat 13 and the outer cover 21. By finally rotating the second screw rod 12, fix its bottom inside the middle guide seat 13, and through the downward pressing action of the second screw rod 12, firmly fix the dental crown 4 to the middle guide seat 13 and the outer cover 21, completing the installation of the entire prosthesis. This sequence ensures the stable fixation of the dental crown 4 and also makes the structure of the entire prosthesis more compact and stable.

[0045] When this embodiment is specifically used, the lower splint 22 is installed at the inner bottom of the outer cover 21. Subsequently, the rubber strip 24 is placed above the lower splint 22. Then, the upper splint 23 is installed above the rubber strip 24. Dental glue is used to seal the outer cover 21, so that it forms a complete buffer assembly with the internal components. The lower splint 22 and the upper splint 23 are fixedly connected through two staggered support rods 25. When the lower splint 22 and the upper splint 23 approach each other, the two support rods 25 will be squeezed, causing them to undergo lateral deformation, thereby further absorbing the occlusal impact force. The first screw 11 is inserted upward from the inside of the connection hole 221, passing through the lower splint 22, the rubber strip 24, and the upper splint 23 in sequence. A screw sleeve seat 14 is rotatably sleeved on the top of the first screw 11. The screw sleeve seat 14 is rotated downward so that its bottom presses the upper splint 23 downward, and at the same time drives the first screw 11 to slide upward, causing the bottom of the first screw 11 to press the lower splint 22 upward, so that the lower splint 22 and the upper splint 23 squeeze the rubber strip 24 toward the middle, causing the rubber strip 24 to produce initial deformation, thereby adjusting the occlusal impact capacity of the rubber strip 24. The middle guide seat 13 is sleeved above the screw sleeve seat 14. The inner side wall of the middle guide seat 13 is provided with two threads with opposite spiral directions. The middle guide seat 13 is rotated downward so that it is threadedly connected to the top of the first screw 11, and the middle guide seat 13 presses the bottom of the first screw 11 downward, keeping the distance between the upper splint 23 and the lower splint 22 unchanged. The second screw 12 is slidably inserted into the assembly hole 41, and the second screw 12 is arranged above the middle guide seat 13. The second screw 12 is rotated downward so that its bottom is threadedly connected to the middle guide seat 13, causing the dental crown 4 to press the outer cover 21 downward, completing the installation of the entire prosthesis. Then, the end of the outer cover 21 is closed. 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 is closely attached to 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 of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge-type upper combined prosthetic restoration for implants, comprising a support layer structure (2). A plurality of implant screws (3) are rotatably arranged below the support layer structure (2), and the implant screws (3) fix the support layer structure (2) to the jawbone. A plurality of dental crowns (4) are arranged above the support layer structure (2), and the support layer structure (2) is arranged between the dental crowns (4) and the jawbone. It is characterized in that: The support layer structure (2) absorbs part of the occlusal impact force generated on the dental crown (4) from top to bottom. A fixing component (1) is arranged inside the dental crown (4). The fixing component (1) fixes the dental crown (4) above the support layer structure (2). A plurality of the fixing components (1) are coaxially arranged with a plurality of implant screws (3). The support layer structure (2) restricts the installation orientation of the dental crown (4) through the fixing component (1), so that the axis of the dental crown (4) is parallel to the jaw surface. The support layer structure (2) absorbs the remaining occlusal impact force transmitted from the dental crown (4) to the implant screw (3) from bottom to top. Rotate the fixing component (1) to adjust the impact absorption capacity of the support layer structure (2). The support layer structure (2) restricts the reverse rotation of the fixing component (1).

2. The superstructure combined prosthetic restoration of the bridge-type implant according to claim 1, wherein: The support layer structure (2) includes an outer cover (21). A plurality of fixing holes are formed at the bottom of the outer cover (21). The implant screw (3) is arranged to rotate in the fixing hole. Tighten the implant screw (3) to fixedly install the bottom of the outer cover (21) on the jaw bone. The occlusal impact force generated by the dental crown (4) is transmitted to the implant screw (3) through the outer cover (21) and then transmitted to the jaw bone through the implant screw (3).

3. The superstructure combined prosthesis for bridge type implant according to claim 2, wherein: A plurality of through guide holes (211) are formed at the top of the outer cover (21). The fixing component (1) includes an intermediate guiding seat (13) slidably inserted into the guide holes (211). The outer side wall of the intermediate guiding seat (13) is square. A square hole is formed at the bottom of the dental crown (4). The dental crown (4) is inserted on the top of the intermediate guiding seat (13). The intermediate guiding seat (13) restricts the rotation of the dental crown (4) after being fixed.

4. The superstructure of the bridge-type implant according to claim 3, characterized in that: A lower clamping plate (22) is arranged inside the outer cover (21) near the bottom. A rubber strip (24) is arranged above the lower clamping plate (22). The rubber strip (24) absorbs the impact force through its own deformation. An upper clamping plate (23) is arranged above the rubber strip (24). The upper clamping plate (23) presses the top surface of the rubber strip (24) from above.

5. The supra-framework implant combined prosthesis according to claim 4, characterized in that: Two staggered support rods (25) are fixedly connected between the upper clamping plate (23) and the lower clamping plate (22). The rubber strip (24) is arranged between the two support rods (25). When the lower clamping plate (22) and the rubber strip (24) approach each other, they squeeze the two support rods (25), causing the support rods (25) to generate lateral deformation.

6. The supra-framework implant prosthetic restoration according to claim 4, characterized in that: A plurality of positioning holes (231) are formed in the top of the upper clamping plate (23). Connecting holes (221) are formed in the bottom of the lower clamping plate (22) at positions corresponding to the positioning holes (231). A first screw rod (11) is inserted upward into the interior of the connecting hole (221). The first screw rod (11) sequentially penetrates through the lower clamping plate (22), the rubber strip (24), and the upper clamping plate (23). A screw sleeve seat (14) is rotatably sleeved on the top of the first screw rod (11). Rotating the screw sleeve seat (14) downward causes the bottom of the screw sleeve seat (14) to press the upper clamping plate (23) downward. The screw sleeve seat (14) drives the first screw rod (11) to slide upward, and causes the bottom of the first screw rod (11) to press the lower clamping plate (22) upward. The lower clamping plate (22) and the upper clamping plate (23) squeeze the rubber strip (24) toward the middle, causing the rubber strip (24) to deform.

7. The superstructure combined prosthetic restoration of the bridge-type implant according to claim 6, characterized in that: The intermediate guide seat (13) is arranged above the screw sleeve seat (14). Two screw threads with opposite spiral directions are arranged on the inner side wall of the intermediate guide seat (13). Rotating the intermediate guide seat (13) downward causes the intermediate guide seat (13) to be threadedly connected to the top of the first screw rod (11). The rotating intermediate guide seat (13) presses the bottom of the first screw rod (11) downward.

8. The superstructure combined prosthetic restoration of the bridge-type implant according to claim 7, characterized in that: A second screw rod (12) is arranged above the screw sleeve seat (14). A through assembly hole (41) is formed in the axis of the dental crown (4). The second screw rod (12) is slidably inserted into the interior of the assembly hole (41). The second screw rod (12) is arranged above the intermediate guide seat (13). Rotating the second screw rod (12) downward causes the bottom of the second screw rod (12) to be threadedly connected to the intermediate guide seat (13). The rotating second screw rod (12) causes the dental crown (4) to approach the outer cover (21) downward.

9. The superstructure combined prosthesis of the bridge-type implant according to claim 8, wherein: A plurality of anti-reverse blocks (15) are annularly arranged at the bottom of the screw sleeve seat (14). The anti-reverse blocks (15) are arranged as wedges with hollow interiors. The pointed side of the wedge is arranged downward. A plurality of wedge grooves are annularly arranged at the bottom of the positioning hole (231). Rotating the screw sleeve seat (14) downward drives the anti-reverse blocks (15) to rotate, causing the anti-reverse blocks (15) to produce longitudinal deformation. The bottom of the deformed anti-reverse blocks (15) is fitted into the wedge grooves. The upper clamping plate (23) prevents the anti-reverse blocks (15) from rotating in the reverse direction through the wedge grooves.

10. The bridge-type implant superstructure according to claim 9, characterized in that: The second screw rod (12), the screw sleeve seat (14) above the implant screw (3), and the implant screw (3) are arranged on the same axis. Inner hexagonal mounting grooves are formed at the tops of the second screw rod (12), the screw sleeve seat (14), and the implant screw (3). The inner diameters of the plurality of inner hexagonal mounting grooves gradually decrease from top to bottom. The spiral direction of the external thread of the screw sleeve seat (14) is opposite to that of the external thread of the first screw rod (11), and the array direction of the external thread of the screw sleeve seat (14) is the same as that of the anti-reverse blocks (15).

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