Reinforced metal edge photocuring implant bridge denture
By creating grooves and recessed patterns on the metal abutment teeth and combining them with fixing screws and positioning mechanisms, the problem of small contact area between resin and metal abutment teeth is solved, thereby improving the firmness and stability of the denture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-03
AI Technical Summary
In traditional light-cured implant bridges with metal margins, the small contact area between the resin and the metal abutment results in poor firmness and stability.
Grooves and recessed patterns are created on the metal base teeth to increase the resin contact area, and they are connected by fixing screws and positioning mechanisms, including the use of nuts, positioning blocks and magnetic screwdrivers.
It increases the contact area between the resin and the metal abutment, improves the firmness and stability of the denture, prevents the fixing bolts from loosening and falling off, and ensures the stability of the denture after installation.
Smart Images

Figure CN223958893U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dental prosthesis technology, and in particular to reinforced metal-rimmed light-cured implant bridges. Background Technology
[0002] Dentures, commonly known as "false teeth," are a general term in medicine for restorations made to replace some or all of the upper and lower jaw teeth. Dentures are divided into two types: removable and fixed.
[0003] Metal-rimmed light-cured implant bridges refer to dentures made entirely of metal, with smooth edges, including the crown and bridge. Different materials can be chosen for metal-rimmed light-cured implant bridges, such as cobalt-chromium alloys. The metal-rimmed light-cured implant bridge is a fixed device implanted into the alveolar bone. The base is the intermediate structure connecting the metal abutment teeth of the implant bridge and the denture, while the denture replaces the missing teeth.
[0004] Traditional light-cured metal implant bridges typically consist of a base 1 at the bottom and a bridge-shaped metal abutment tooth 2 mounted on top of the base 1, as shown in the attached image. Figure 4 As shown, when making a denture, resin is used to make the tooth on top of the metal abutment 2. However, the surface of the traditional metal abutment 2 is smooth and its contact area with the resin is small, which makes the firmness and stability between the tooth made of resin and the metal abutment 2 poor. In this regard, this application proposes a light-cured implant bridge denture with reinforced metal margin. Utility Model Content
[0005] To address the aforementioned issues, this application provides a reinforced metal-rimmed light-cured implant bridge denture.
[0006] The reinforced metal-margin light-cured implant bridge prosthesis provided in this application adopts the following technical solution:
[0007] A reinforced metal-rimmed light-cured implant bridge includes a base and a bridge-shaped metal abutment mounted on top of the base. The metal abutment has grooves and recessed grooves inside and on top for resin connection. Several fixing screws are detachably installed between the base and the metal abutment. A positioning mechanism is provided between the metal abutment and the fixing screws to prevent the fixing screws from loosening and falling off.
[0008] By adopting the above technical solution, the roughness of the surface of the metal abutment tooth can be increased by setting grooves and recessed textures, and the contact area between the resin and the metal abutment tooth can be increased, thereby improving the firmness and stability between the tooth and the metal abutment tooth after fabrication, and thus strengthening the interior of the denture.
[0009] Preferably, the fixing screw includes a screw rod and a nut movably disposed at one end of the screw rod and engaging with the groove of the metal base tooth. A plurality of threaded holes are provided between the top of the base and the bottom of the metal base tooth, and one end of the screw rod is threaded into the corresponding threaded hole.
[0010] By adopting the above technical solution, after the screw is screwed into the threaded hole, it can connect the base and the metal base tooth, and the metal base tooth can hide and protect the nut through the groove.
[0011] Preferably, a square hole is provided at the center of the end of the screw near the nut, and a square rod is fixedly provided at the center of one side of the nut and slidably connected in the corresponding square hole. An elastic element for pulling the square rod into the square hole is fixedly provided between the square hole of the screw and one end of the square rod. A cross groove is provided at the center of the side of the nut away from the screw.
[0012] By adopting the above technical solution, the nut can be limited by the matching square rod, so that the nut can move on one side of the screw. After the nut rotates, the screw will rotate accordingly. The elastic element can connect the nut and the screw through the square rod, so that the nut will not fall off from one side of the screw.
[0013] Preferably, the positioning mechanism includes a positioning hole formed in the groove of the metal base tooth, and a positioning block fixed on one side edge of the nut and inserted into the positioning hole, wherein a magnetic block is fixed inside the nut.
[0014] By adopting the above technical solution, the positioning plug can be inserted into the positioning hole to position and fix the rotating fixing bolt, making the fixing bolt less likely to loosen or fall off, thereby improving the stability after denture installation. In addition, the magnetic screwdriver magnetically attracts the magnetic block and pulls the nut upward when rotating the fixing screw, so that the positioning plug at the bottom of the nut will not hinder the screw from being screwed into the threaded hole.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] 1. The prosthesis is made by first creating grooves and recessed patterns on the metal abutment, and then depositing resin into the grooves and recessed patterns. The grooves and recessed patterns increase the roughness of the surface of the metal abutment and increase the contact area between the resin and the metal abutment, thereby improving the firmness and stability between the prosthesis and the metal abutment after fabrication, thus strengthening the interior of the prosthesis.
[0017] 2. The metal abutment can be installed on the base by connecting the fixing screw, and the positioning block can be inserted into the positioning hole to position and fix the fixed bolt after rotation, making the fixed bolt less likely to loosen or fall off, thereby improving the stability of the denture after installation. The magnetic screwdriver is used to attract the magnetic block and pull the nut upward when rotating the fixing screw, so that the positioning block at the bottom of the nut will not hinder the screw from being screwed into the threaded hole. When the screw is fully screwed into the threaded hole, the nut is released. At this time, the positioning block will be directly inserted into the positioning hole under the tension of the elastic element, which is convenient for operation. Attached Figure Description
[0018] Figure 1 This is a top view schematic diagram of the overall structure of the reinforced metal-rimmed light-cured implant bridge denture according to an embodiment of this application;
[0019] Figure 2 This is a front view connection diagram illustrating the internal structure of the base and the metal abutment tooth, which is the main embodiment of this application.
[0020] Figure 3 The embodiments of this application mainly embody Figure 2 Enlarged structural diagram of the screw and nut;
[0021] Figure 4 A schematic diagram of the structure of a light-cured metal-rimmed implant bridge denture in the prior art;
[0022] Reference numerals: 1. Base; 11. Threaded hole; 2. Metal base tooth; 21. Groove; 22. Recessed groove; 3. Screw; 31. Nut; 32. Cross groove; 33. Square hole; 34. Square rod; 35. Elastic element; 36. Magnetic block; 4. Positioning hole; 41. Positioning insert. Detailed Implementation
[0023] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.
[0024] This application discloses reinforced metal-rimmed light-cured implant bridge dentures.
[0025] Strengthen metal-rimmed light-cured implant bridges, refer to Figure 1-2 The structure includes a base 1 and a metal abutment 2. The metal abutment 2 is installed on top of the base 1 and is in the shape of a bridge. The base 1, the metal abutment 2, and the resin filled on the metal abutment 2 and cured together form the existing light-cured metal implant bridge denture, which is a public technology and will not be described in detail here.
[0026] Reference Figure 1-2The metal abutment tooth 2 has grooves 21 and recessed grooves 22 for resin connection inside and on top. The denture is made by first making grooves 21 and recessed grooves 22 on the metal abutment tooth 2, and then depositing resin into the grooves 21 and recessed grooves 22 and curing it. The grooves 21 and recessed grooves 22 can increase the roughness of the surface of the metal abutment tooth 2 and increase the contact area between the resin and the metal abutment tooth 2, thereby improving the firmness and stability between the tooth and the metal abutment tooth 2 after the tooth is made.
[0027] Reference Figure 1-3 The base 1 and the metal tooth 2 are detachably connected by several fixing screws. The fixing screws include a screw rod 3 and a nut 31 that is movably disposed at one end of the screw rod 3 and fits into the groove 21 of the metal tooth 2. Several threaded holes 11 are provided between the top of the base 1 and the bottom of the metal tooth 2. One end of the screw rod 3 is threaded into the matching threaded hole 11. After the screw rod 3 is screwed into the threaded hole 11, it can connect the base 1 and the metal tooth 2. The metal tooth 2 can hide and protect the nut 31 through the groove 21.
[0028] Reference Figure 1-3 A square hole 33 is provided at the center of one end of the screw 3 near the nut 31. A square rod 34 is fixedly and slidably connected to the corresponding square hole 33 at the center of one side of the nut 31. An elastic element 35 is fixedly provided between the square hole 33 of the screw 3 and one end of the square rod 34 to pull the square rod 34 into the square hole 33. The nut 31 can limit the corresponding square rod 34 through the square rod 34, so that the nut 31 can move on one side of the screw 3. After the nut 31 rotates, the screw 3 will rotate accordingly. The elastic element 35 can connect the nut 31 and the screw 3 through the square rod 34, so that the nut 31 will not fall off one side of the screw 3. The elastic element 35 can be a precision spring or other elastic object. The wire diameter of the precision spring is usually between 0.06-1.0mm, which is public technology and will not be described in detail here.
[0029] Reference Figure 1-3 The nut 31 has a cross groove 32 at the center of the side opposite to the screw 3, and the operator can insert a magnetic screwdriver into the cross groove 32 to drive the nut 31 and the screw 3 to rotate.
[0030] Reference Figure 2-3A positioning mechanism is provided between the metal base tooth 2 and the fixing screw to prevent the fixing screw from loosening and falling off. The positioning mechanism includes a positioning hole 4 opened in the groove 21 of the metal base tooth 2, and a positioning insert 41 fixed on one side edge of the nut 31 and inserted into the positioning hole 4. A magnetic block 36 is fixed inside the nut 31. The magnetic block 36 can be magnetically attracted to a screwdriver with a magnetic force, and the magnetic force is greater than the pulling force of the elastic element 35. It is convenient to use a magnetic screwdriver to magnetically attract the magnetic block 36 and pull the nut 31 upward when rotating the fixing screw, so that the positioning insert 41 at the bottom of the nut 31 will not hinder the screw 3 from being screwed into the threaded hole 11.
[0031] When the screw 3 is fully screwed into the threaded hole 11, the nut 31 is loosened. At this time, the positioning block 41 will be directly inserted into the positioning hole 4 under the tension of the elastic element 35 to position and fix the rotated fixing bolt, making the fixing bolt less likely to loosen or fall off, thereby improving the stability of the denture after installation.
[0032] The implementation principle of this application embodiment for strengthening light-cured metal-margin implant bridge dentures is as follows:
[0033] During installation, the operator can use a magnetic screwdriver to attract the magnetic block 36 and rotate the fixing screw, thereby screwing the screw 3 into the threaded hole 11 to install and fix the base 1 and the metal base tooth 2. When the screw 3 is screwed into the threaded hole 11 and the positioning block 41 is about to contact the positioning hole 4, the operator can use the magnetic screwdriver to attract the magnetic block 36 and pull the nut 31 upward so that the positioning block 41 at the bottom of the nut 31 will not obstruct the screw 3 from being screwed into the threaded hole 11.
[0034] After the screw 3 is fully screwed into the threaded hole 11, the magnetic screwdriver is pulled away from the nut 31 to loosen the nut 31. At this time, the positioning block 41 will be directly inserted into the positioning hole 4 under the tension of the elastic element 35 to position and fix the rotated fixing bolt, so that the fixing bolt is not easy to loosen or fall off, thereby improving the stability of the denture after installation.
[0035] Next, resin is deposited into the groove 21 and the recessed texture 22 to make the denture. By setting the groove 21 and the recessed texture 22, the roughness of the surface of the metal abutment tooth 2 can be increased, and the contact area between the resin and the metal abutment tooth 2 can be increased, thereby improving the firmness and stability between the tooth and the metal abutment tooth 2 after the tooth is made, and thus strengthening the interior of the denture.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A reinforced metal edge light-cured implant bridge denture, comprising a base (1) and a bridge-shaped metal abutment (2) mounted on the top of the base (1), characterized in that: a recess (21) and a sunken pattern (22) for connecting resin are arranged inside and on the top of the metal abutment (2), a plurality of fixing screws are detachably arranged between the base (1) and the metal abutment (2), and a positioning mechanism for preventing the fixing screws from loosening and falling off is arranged between the metal abutment (2) and the fixing screws.
2. The reinforced metal-edged light-cured implant-bridge denture according to claim 1, characterized in that: The fixing screw comprises a screw rod (3) and a nut (31) movably arranged at one end of the screw rod (3) and abutting against the recess (21) of the metal abutment (2).
3. The reinforced metal-edged light-polymerized bridge denture according to claim 2, characterized in that: A plurality of threaded holes (11) are arranged between the top of the base (1) and the bottom of the metal abutment (2), and one end of the screw rod (3) is threadedly connected in the corresponding threaded hole (11).
4. The reinforced metal-edged light-polymerized bridge denture according to claim 3, characterized in that: A square hole (33) is arranged at the center of one end of the screw rod (3) close to the nut (31), and a square rod (34) is fixedly arranged at the center of one side of the nut (31) and slidably connected in the corresponding square hole (33).
5. The reinforced metal-edged light-polymerized bridge denture according to claim 4, characterized in that: An elastic member (35) is fixedly arranged between the square hole (33) of the screw rod (3) and one end of the square rod (34) for pulling the square rod (34) into the square hole (33).
6. The reinforced metal-edged light-polymerized bridge denture according to claim 2, characterized in that: A cross slot (32) is arranged at the center of the side of the nut (31) away from the screw rod (3).
7. The reinforced metal-edged light-polymerized bridge denture according to claim 5, characterized in that: The positioning mechanism comprises a positioning hole (4) arranged in the recess (21) of the metal abutment (2) and a positioning plug (41) fixedly arranged at the side edge of the nut (31) and inserted in the positioning hole (4).
8. The reinforced metal-edged light-polymerized bridge denture according to claim 7, characterized in that: A magnetic block (36) is fixedly arranged in the nut (31).