Segmented edentulous jaw implant bridge frame fixed denture

Abstract

The present application relates to the technical field of denture, and discloses a sectional type edentulous jaw implant bridge frame fixed denture, which comprises an implant body, a connecting bridge frame is screw-connected to the top periphery of the implant body, the connecting bridge frame comprises a first connecting frame and a second connecting frame, a semicircular structure double clasp is arranged at the outer end of the first connecting frame, a semicircular structure single clasp is arranged at the outer end of the second connecting frame, the single clasp is clamped between the double clasp of the first connecting frame in an adjacent group of connecting bridge frames, and a base is screw-connected between the single clasp and the double clasp. By designing the connecting bridge frame as a plurality of independent bridge units, the distribution of the implant body in the oral cavity of the patient and the jaw bone shape can be more accurately designed and manufactured, the adaptability of the denture to the oral cavity is improved, when stressed, each connecting bridge frame can independently disperse stress, and the problem of stress concentration of the integral bridge frame is avoided, so that the problems of unreasonable sectional design and stress concentration of the sectional type denture are solved.

Description

Technical Field

[0001] This invention relates to the field of implant denture technology, and more particularly to a segmented edentulous jaw implant bridge fixed denture. Background Technology

[0002] In the field of dental implant restoration, edentulous jaw implant restoration is an important means to solve the problem of patients with complete tooth loss. At present, most common edentulous jaw implant-supported fixed dentures adopt a one-piece structure. However, during the fabrication process of one-piece bridges, due to the complexity of the patient's intraoral jawbone morphology, implant placement angle and position, it is difficult to achieve a completely precise fit. This can easily lead to stress concentration at the connection between the bridge and the implant, causing the bridge or implant to be subjected to unreasonable stress for a long time, increasing the risk of bridge breakage, implant loosening or even failure. In addition, once a one-piece denture is partially damaged or needs adjustment, it often needs to be removed and remade, which is costly and time-consuming, causing great inconvenience to patients. Furthermore, the existing connection methods also have shortcomings in terms of stability and sealing, which can easily lead to food debris entering the connection area, causing oral hygiene problems and peri-implant inflammation.

[0003] To address the aforementioned issues, some research has been conducted on segmented dentures. However, existing segmented dentures suffer from problems such as unreasonable segment design, complex and unstable connection structures, and poor coordination between segments. Furthermore, due to the adoption of a personalized medical approach, the production cycle is long, which fails to adequately meet actual clinical needs and makes it difficult to widely promote in actual production and application. Therefore, there is an urgent need to design a segmented edentulous implant bridge fixed denture with a novel and reasonable structure, stable connections, and effective solutions to existing problems. Summary of the Invention

[0004] The purpose of this invention is to provide a segmented implant-supported fixed denture for edentulous patients. Through innovative segmented structural design and connection method, it improves the fit between the denture and the patient's oral cavity, disperses stress, and reduces the risk of damage to the denture and implant. At the same time, it facilitates local repair and adjustment of the denture, improves the stability and sealing of the denture, improves oral hygiene, and enhances patient comfort and restorative effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A segmented edentulous implant-supported fixed denture includes an implant; a connecting rod is fixedly connected to the top surface of the implant, and a connecting bridge is threadedly connected to the top periphery of the implant; a connector is snapped onto the outside of the connecting rod, and a sealing assembly is snapped onto the top surfaces of the connecting rod and the connector; the connecting bridge includes a first connecting frame and a second connecting frame, the outer end of the first connecting frame is provided with a semi-circular double clasp, and the middle of the outer end of the second connecting frame is provided with a semi-circular single clasp, the single clasp being snapped between the double clasps of the first connecting frame in an adjacent set of connecting bridges, and an abutment is threadedly connected between the single clasp and the double clasps; the sealing assembly includes a connecting rod and a sealing plate, wherein two connecting rods are provided and snapped onto the top surface of the connecting rod, the outer end of the connecting rod is provided with a locking block, the locking block being snapped into a groove opened on the connector, and the two connecting rods are centrally symmetrical about the center of the top surface of the connector, and the sealing plate is snapped onto the connecting rod, and the top surface of the sealing plate is flush with the top surface of the connector.

[0007] As a further technical solution of the present invention, the top surface of the connector is provided with a convex truncated cone as a connecting platform. After the connector is installed on the top surface of the base, the top surface of the connector is ground and fixedly connected to the denture crown. The denture crown is made of all-ceramic material, which has good aesthetics and biocompatibility.

[0008] As a further technical solution of the present invention, the inner end of the connecting rod is fixedly connected to an inner card plate, the inner card plate is provided with a card groove, the card groove is used to engage the supporting card rod, the bottom of the sealing card plate is provided with a rectangular groove, and the two sides of the sealing card plate are provided with protrusions. When the sealing card plate is engaged with the top surface of the connecting rod, the supporting card rod is engaged in the rectangular groove at the bottom of the sealing card plate, and the protrusions on both sides of the sealing card plate are engaged in the card groove of the inner card plate and the card groove on the inner wall of the rectangular groove of the connecting rod, respectively.

[0009] As a further technical solution of the present invention, a connecting rod is fixedly connected to the top surface of the base, the bottom surface of the base is flush with the bottom surface of the connecting bridge to which it is connected, and a connecting piece is snapped onto the top of the base and the outside of the connecting rod.

[0010] As a further technical solution of the present invention, the first connecting frame has a slot inside, threaded rods are engaged on the upper and lower sides of the slot, a engaging wheel is engaged in the middle of the slot, the outer wall of the engaging wheel has a trapezoidal slot with a concentric opening, the threaded rods are fixedly connected to the upper and lower sides of the engaging wheel, a fixing tube is fixedly connected to the upper and lower sides of the inner end of the first connecting frame, the inner wall of the fixing tube has threads, a connecting sleeve is threaded to the outside of the threaded rod, the outer wall of the connecting sleeve has threads and is threaded to the inside of the fixing tube, and the end of the connecting sleeve is provided with an external hexagon. The angle nut structure block has an adjusting block fixedly connected to the inner end of the second connecting bracket. The inner wall of the adjusting block has a groove that matches the locking wheel. The groove of the adjusting block and the locking wheel are tightly clamped together with an interference fit. After the external hexagonal nut structure block is screwed on, the threaded rod cannot rotate due to the restriction of the groove. At this time, the position of the connecting sleeve and the fixed tube can be adjusted. After the connecting sleeve is disengaged from the fixed tube, the locking wheel can be pulled to adjust its position. After it is fixedly clamped with the adjusting block, the connecting sleeve is rotated to fix it to the fixed tube, thus completing the fixation of the locking wheel's position.

[0011] As a further technical solution of the present invention, the outer wall of the implant is threaded into the patient's alveolar bone. The connecting rod fixedly connected to the top of the implant is a metal rod made of titanium, but not limited to titanium. Modified titanium alloys and other materials can also be used as the material for the connecting rod. The top surface of the connecting rod has two centrally symmetrical rectangular grooves, and the inner wall of the rectangular grooves has a retaining groove.

[0012] The beneficial effects of this invention are as follows:

[0013] First, it can improve adaptability and stress distribution: by designing the connecting bridge as multiple independent bridge units, it can be designed and manufactured more precisely according to the distribution of implants in the patient's oral cavity and the shape of the jawbone, improving the adaptability of the denture to the oral cavity. When under stress, each connecting bridge can independently distribute stress, avoiding the problem of stress concentration in integral bridges, effectively reducing the risk of bridge breakage and implant loosening, and improving the service life of dentures and implants.

[0014] Secondly, it facilitates repair and adjustment: when the denture is partially damaged or needs adjustment, only the corresponding connecting bridge needs to be disassembled for repair or replacement, without having to remove the entire denture, which greatly reduces repair costs and time and improves repair efficiency.

[0015] Furthermore, it can enhance connection stability and sealing: the design of the implant and abutment uses high-precision mechanical fit and threaded sealing to connect to the connecting bridge, ensuring the stability and sealing of the connection between the various parts of the denture, improving oral hygiene, and reducing the probability of peri-implantitis.

[0016] In addition, it has good aesthetics and functionality: the denture crowns are made of all-ceramic materials, which have a realistic appearance and good biocompatibility, and can meet the patient's aesthetic requirements. At the same time, by precisely designing the shape and occlusal relationship of the crowns, the patient's chewing function can be effectively restored and the quality of life can be improved. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the connection structure between the connecting bridge and the implant according to the present invention;

[0019] Figure 3 This is a schematic diagram of the connecting cable tray of the present invention;

[0020] Figure 4 This is a cross-sectional structural diagram of the first connecting frame of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A;

[0022] Figure 6 This is a schematic diagram of the sealing assembly of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle;

[0024] Figure 8 This is a schematic diagram of the structure for mounting the irregularly shaped base of the connector of the present invention.

[0025] Figure reference numerals:

[0026] 1. Implant; 101. Connecting rod; 2. Abutment; 3. Connector; 4. Connecting bridge; 41. First connecting frame; 4101. Clip wheel; 41011. Threaded rod; 4102. Fixing tube; 42. Second connecting frame; 4201. Adjusting block; 5. Connecting sleeve; 6. Sealing assembly; 61. Connecting rod; 6101. Inner clamping plate; 62. Supporting rod; 63. Sealing clamping plate. Detailed Implementation

[0027] To make the technical means, creative features, achieved objectives, and effects of this invention readily understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] Please see the appendix Figure 1 To be continued Figure 8 A segmented edentulous implant-supported fixed denture includes an implant 1; a connecting rod 101 is fixedly connected to the top surface of the implant 1, and a connecting bridge 4 is threadedly connected to the outer periphery of the top of the implant 1; a connector 3 is snapped onto the outside of the connecting rod 101, and a sealing component 6 is snapped onto the top surfaces of the connecting rod 101 and the connector 3; the connecting bridge 4 includes a first connecting frame 41 and a second connecting frame 42, the outer end of the first connecting frame 41 is provided with a semi-circular double clasp, and the middle of the outer end of the second connecting frame 42 is provided with a semi-circular single clasp, the single clasp being snapped onto an adjacent pair of... A base 2 is threadedly connected between the double retaining rings of the first connecting frame 41 in the connecting cable tray 4, and between the single retaining ring and the double retaining ring; the sealing assembly 6 includes a connecting rod 61 and a sealing plate 63, wherein there are two connecting rods 61 and they are engaged with the top surface of the connecting rod 101. The outer end of the connecting rod 61 is provided with a locking block, which is engaged with the groove opened on the connecting member 3. The two connecting rods 61 are centrally symmetrical about the center of the top surface of the connecting member 3. The sealing plate 63 is engaged above the connecting rods 61, and the top surface of the sealing plate 63 is flush with the top surface of the connecting member 3.

[0029] Please see the appendix Figure 2 and attached Figure 4 A connecting rod 101 is fixedly connected to the top surface of the base 2. The bottom surface of the base 2 is flush with the bottom surface of the connecting cable tray 4 to which it is connected. A connector 3 is snapped onto the outside of the connecting rod 101 above the base 2. The connecting cable tray 4 can be fixedly connected using the base 2, and a foundation is provided for the installation of the connector 3.

[0030] Furthermore, once the base 2 is installed, it can provide a larger grinding angle, such as 45° or 52°, compared to the traditional 0°, 17°, and 30°, in order to solve the problem of large-angle repair.

[0031] Please see the appendix Figure 3 and attached Figure 8 The top surface of connector 3 is provided with a convex truncated cone as a connecting platform. After connector 3 is installed on the top surface of base 2, the top surface of connector 3 is ground and fixedly connected to the denture crown. The denture crown is made of all-ceramic material, which has good aesthetics and biocompatibility. The denture crown is fixed to connector 3 by adhesive. The grinding angle can be increased by connector 3 to meet the connection needs of crowns of different sizes.

[0032] In another embodiment, as shown in the appendix Figure 8As shown, after the top surface of connector 3 is connected to the irregular abutment, it can be ground at different angles to meet the connection needs of different teeth. Using connector 3 and connecting bridge 4 as standard parts can greatly improve production efficiency. The irregular abutment adopts a personalized design and is selected according to the data transmitted by the oral scanner, which can meet personalized treatment and service while greatly shortening the production cycle.

[0033] Please see the appendix Figure 4 and attached Figure 5 The first connecting frame 41 has a slot inside, with threaded rods 41011 engaged on the upper and lower sides of the slot. A receiving wheel 4101 is engaged in the middle of the slot. The outer wall of the receiving wheel 4101 has a concentrically tapering trapezoidal slot. The threaded rods 41011 are fixedly connected to the upper and lower sides of the receiving wheel 4101. A fixing tube 4102 is fixedly connected to the upper and lower sides of the inner end of the first connecting frame 41. The inner wall of the fixing tube 4102 is threaded. A connecting sleeve 5 is threaded to the outside of the threaded rod 41011. The outer wall of the connecting sleeve 5 is threaded and threaded to the fixing tube 41011. Inside 102, the end of the connecting sleeve 5 is provided with an external hexagonal nut structure block. After the external hexagonal nut structure block is screwed on, the threaded rod 41011 cannot rotate due to the restriction of the slot. At this time, the position of the connecting sleeve 5 and the fixed tube 4102 can be adjusted. After the connecting sleeve 5 is disengaged from the fixed tube 4102, the position of the snap-fit ​​wheel 4101 can be adjusted by pulling it. After it is fixedly snapped with the adjusting block 4201, the connecting sleeve 5 is rotated to fix it to the fixed tube 4102, thus completing the fixation of the position of the snap-fit ​​wheel 4101 and ensuring that the connection angle of the connecting cable tray 4 is fixed.

[0034] Please see the appendix Figure 6 and attached Figure 7 An inner plate 6101 is fixedly connected to the inner end of the connecting rod 61. The inner plate 6101 has a slot, and the supporting rod 62 is engaged inside the slot. The bottom of the sealing plate 63 has a rectangular slot, and protrusions are provided on both sides of the sealing plate 63. When the sealing plate 63 is engaged with the top surface of the connecting rod 101, the supporting rod 62 is engaged in the rectangular slot at the bottom of the sealing plate 63, and the protrusions on both sides of the sealing plate 63 are engaged in the slots of the inner plate 6101 and the slots on the inner wall of the rectangular slot of the connecting rod 101, respectively. The sealing plate 63 is used to seal the top surface of the connecting rod 101.

[0035] Furthermore, after the locking block at the outer end of the connecting rod 61 is engaged in the groove at the top of the connector 3, the inner locking plate 6101 is pushed to move. The supporting locking rod 62 is engaged in the slot on the inner locking plate 6101 and the slot on the inner wall of the rectangular groove on the top surface of the connecting rod 101, thus completing the clamping between the connecting rod 61 and the connector 3. At the same time, the clamping between the connecting rod 61 and the connecting rod 101 is also completed. After the sealing plate 63 completes the sealing, the connecting rod 101 is flush with the top surface of the connector 3, which can also realize the quick connection between the connector 3 and the base 2 or the implant 1.

[0036] Please see the appendix Figure 1 and attached Figure 6 The outer wall of the implant 1 is threaded into the patient's alveolar bone. The connecting rod 101 fixedly connected to the top of the implant 1 is a metal rod made of titanium, but it is not limited to titanium. Modified titanium alloys and other materials can also be used as the material for the connecting rod 101. The top surface of the connecting rod 101 has two centrally symmetrical rectangular slots. The inner wall of the rectangular slots has a slot, which provides a locking space for the support rod 62 and a fixed fulcrum to ensure the stable locking of the support rod 62.

[0037] Specifically, after the support rod 62 is engaged in the slot on the inner wall of the rectangular groove on the top surface of the connecting rod 101, one end of the support rod 62 is fixed. After the support rod 62 is engaged in the inner plate 6101, the fixed engagement between the connecting rod 61 and the connecting rod 101 is completed.

[0038] Please see the appendix Figure 3 and attached Figure 4 In a preferred embodiment, an adjusting block 4201 is fixedly connected to the inner end of the second connecting frame 42. The inner wall of the adjusting block 4201 is provided with a slot that matches the locking wheel 4101. The slot of the adjusting block 4201 and the locking wheel 4101 are interference-fitted and fastened together. After pulling the locking wheel 4101, the adjusting block 4201 is locked onto the locking wheel 4101 as needed. After the angle of the second connecting frame 42 and the first connecting frame 41 is fixedly connected, they can remain fixed on the connecting plane.

[0039] Furthermore, when the connecting cable tray 4 is used to make the Malone Bridge, the size ratio of the second connecting frame 42 and the first connecting frame 41 is different, but the size of the locking wheel 4101 and the adjusting block 4201 remains unchanged, thus making a standard part. After the connecting cable tray 4 is assembled and connected, the connection between the connecting frames can be kept stable. At the connection between the double locking ring of the first connecting frame 41 and the single locking ring of the second connecting frame 42, the implant 1 or the base 2 can be selectively installed, thereby achieving different planting needs of 2 to 8 seedlings.

[0040] Working principle of the invention:

[0041] In the preliminary preparation stage, a high-precision three-dimensional scan of the patient's oral cavity is performed to obtain detailed data such as the position, angle and jawbone morphology of the implant 1. The data is then imported into the three-dimensional design software. Based on the distribution of the implant 1 and the jawbone morphology, the bridge unit is divided in the three-dimensional design software. The adjusting block 4201 is attached to the connecting wheel 4101 to fix the angle between the second connecting frame 42 and the first connecting frame 41. The bridge assembly is completed. The implant 1 and abutment 2 are connected to the connecting bridge 4 at the required position. The connection between the implant 1 or abutment 2 and the connecting bridge 4 is completed by threaded connection.

[0042] During the installation phase, the inner clamping plate 6101 is pushed by the support clamping rod 62 to make the clamping block at the outer end of the connecting rod 61 engage with the groove at the top of the connector 3. After the clamping block engages with the groove on the inner clamping plate 6101 and the groove on the inner wall of the rectangular groove on the top surface of the connecting rod 101, the clamping between the connector 3 and the connecting rod 101 is completed. After sealing with the sealing plate 63, the connecting rod 101 is flush with the top surface of the connector 3. Adhesive is applied to the connector 3, and the denture crown is accurately placed on the connector 3. The position of the crown and the occlusal relationship are adjusted. After the adhesive cures, the denture installation is completed.

Claims

1. A segmented edentulous implant bridge framework fixed denture comprising implants; characterized in that, The top surface of the implant is fixedly connected with a connecting rod, and the top of the implant is threadedly connected with a connecting bridge.

2. The segmented edentulous implant bridge framework fixed denture according to claim 1, wherein, The outer part of the connecting rod is clamped with a connecting piece, and the top surface of the connecting rod and the connecting piece is clamped with a sealing assembly.

3. The segmented edentulous implant bridge framework fixed denture of claim 2, wherein, The connecting bridge comprises a first connecting frame and a second connecting frame.

4. The segmented edentulous implant bridge framework fixed denture of claim 3, wherein, The top surface of the connecting piece is provided with a circular table with a diameter outwardly protruding as a connecting table.

5. The segmented edentulous implant bridge framework fixed denture of claim 3, wherein, The inner end of the connecting rod is fixedly connected with an inner clamping plate, and the inner clamping plate is provided with a clamping groove. The bottom of the sealing clamping plate is provided with a rectangular groove, and the two sides of the sealing clamping plate are provided with protrusions. When the sealing clamping plate is clamped to the top surface of the connecting rod, the supporting clamping rod is clamped in the rectangular groove at the bottom of the sealing clamping plate, and the protrusions on the two sides of the sealing clamping plate are clamped in the clamping grooves in the inner clamping plate and the inner wall of the rectangular groove of the connecting rod, respectively.

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