Magnetic base station
By using magnetic suction fixation between the crown and the abutment, the problem of decreasing the crown retention force in the prior art is solved, and a long-lasting and constant retention force is achieved, which improves the stability of the dental implant.
Patent Information
- Application Number
- CN202421188155.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The connection methods of existing crowns and abutments, such as bonding or clamping, lead to the retention force being easily reduced after long-term use, affecting the stability of dental implants.
Using a magnetic abutment, by setting an armature in the abutment body and installing corresponding magnets on the crown, the crown and the abutment are fixed by using magnetic suction, thereby providing a long-lasting and constant retention force.
Fixing the crown and abutment by magnetic suction reduces the possibility of the retention force decreasing with time, improves the stability of the crown, and facilitates maintenance, especially when multiple abutment bodies are installed, forming a magnetic bridge frame Further improve stability.
Smart Images
Figure CN222467157U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of oral restoration, and in particular to a magnetic base. Background Art
[0002] During tooth restoration, a dental implant is usually placed in the gums. After the bone tissue heals, the abutment is connected to the dental implant, and the crown is installed on the abutment to complete the tooth restoration. Common ways of connecting the crown and the abutment are bonding or clamping to fix the crown.
[0003] Although fixing the crown and abutment by bonding or clamping can provide a certain retention force, the retention force is easily reduced after long-term use, affecting the stability of the implant. Utility Model Content
[0004] In order to reduce the adverse effects on the stability of dental implants, the present application provides a magnetic abutment.
[0005] The magnetic base provided in this application adopts the following technical solution:
[0006] A magnetic base comprises a base body mounted on a gum, wherein an armature is arranged in the base body, a magnet adapted to the armature is mounted on a dental crown, and the base body is fixed to the dental crown via the armature and the magnet.
[0007] By adopting the above technical solution, the crown and the abutment body are fixed by mutual adsorption of the armature and the magnet, so that the crown is installed on the gum through the abutment body, providing a long-lasting and constant retention force for the crown, reducing the possibility of reduced retention force due to prolonged time, and facilitating the maintenance of the crown and the implant. When multiple abutment bodies are installed, the installed abutment bodies form a magnetic bridge under the action of the armature and the magnet, further improving stability and reducing adverse effects on the stability of the implant.
[0008] Optionally, the base body is configured to be a base body made of pure titanium, titanium alloy or zirconium oxide.
[0009] By adopting the above technical solution and selecting a base body made of pure titanium, titanium alloy or zirconium oxide, artifacts are only formed in a small range around the base body during magnetic resonance examination, thereby reducing the impact on magnetic resonance of the head, neck and whole body.
[0010] Optionally, the base body includes a mounting platform connected to the dental crown and a connecting portion connected to the gums, and projections of the mounting platform and the connecting portion in a height direction of the connecting portion do not overlap.
[0011] By adopting the above technical solution, the projections of the mounting platform and the connecting part in the height direction of the connecting part do not overlap, thereby facilitating compensation for the influence of a poor installation position of the connecting part on tooth restoration and reducing the possibility of displacement of the dental implant. The abutment body and the crown are fixed by the armature and the magnet. The magnetic attraction of the armature and the magnet enables the crown to be stably connected to the abutment body even when the installation position of the connecting part is poor, thereby reducing the adverse effect on the stability of the dental implant.
[0012] Optionally, the connecting portion is inserted into a natural tooth root on the gum and fixedly connected to the natural tooth root.
[0013] By adopting the above technical solution, when the natural tooth root and the crown are connected through the base body, the connecting part is inserted into the natural tooth root and fixed, so as to facilitate the use of the natural tooth root and perceive external stimuli, thereby protecting the tooth root and reducing the possibility of alveolar bone absorption and atrophy, thereby fully supporting the crown and further improving the stability of the implant.
[0014] Optionally, an implant adapted to the connecting portion is also installed on the gum, and the connecting portion is inserted into the implant and fixedly connected to the implant via bolts.
[0015] By adopting the above technical solution, when the implant and the crown are connected through the base body, the connecting part is inserted into the implant and the implant and the connecting part are fixed by bolts, thereby facilitating the installation and maintenance of the dental implant and improving the stability of the dental implant.
[0016] Optionally, the mounting platform is slidably connected to the connecting portion along the circumference of the connecting portion, and an adjustment component for adjusting the position of the mounting platform in the circumference of the connecting portion is provided between the mounting platform and the connecting portion.
[0017] By adopting the above technical solution, the mounting platform is slidably connected to the end of the connecting part, so that the position of the mounting platform in the circumferential direction of the connecting part can be adjusted by adjusting the assembly according to the degree of deviation of different connecting parts, thereby improving the applicability of the base body.
[0018] Optionally, the adjustment assembly includes a sliding block fixedly connected to a side of the mounting platform close to the connecting part, an arc-shaped sliding groove adapted to the sliding block is provided on the outer wall on the upper side of the connecting part, the sliding block is inserted into the sliding groove and slidably connected to the connecting part, and a fixing member for fixing the sliding block is provided on the connecting part.
[0019] By adopting the above technical solution, the mounting platform is placed on the side of the connecting part close to the position where the crown needs to be installed according to the degree of offset of the connecting part, and the mounting platform is driven to drive the sliding block to move in the sliding groove until the mounting platform is adapted to the position where the crown needs to be installed. At this time, the sliding block is fixed by the fixing part to improve the applicability of the base body.
[0020] Optionally, the fixing member includes a screw located at one end of the connecting part close to the mounting platform, the lower end of the screw passes through the side wall of the connecting part and the sliding block and is threadedly connected to the sliding block, and a clearance hole connected to the sliding groove is opened at the end of the connecting part, and the sliding block is fixed by pressing the end of the screw against the side wall of the connecting part.
[0021] By adopting the above technical solution, when the mounting platform is driven to move, the sliding block and the screw rod slide on the connecting part with the mounting platform. When the mounting platform is adjusted to adapt to the position where the crown needs to be installed, the screw rod is driven to move in the direction close to the gums until it is tightly pressed against the side wall of the connecting part, thereby fixing the mounting platform and improving the stability of the connection between the mounting platform and the connecting part.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The crown and the abutment body are fixed by the mutual adsorption of the armature and the magnet, so that the crown is installed on the gum through the abutment body, providing a lasting and constant retention force for the crown, reducing the possibility of reduced retention force due to time extension, and facilitating the maintenance of the crown and the implant. When multiple abutment bodies are installed, the installed abutment bodies form a magnetic bridge under the action of the armature and the magnet, further improving stability and reducing adverse effects on the stability of the implant.
[0024] 2. The projections of the mounting platform and the connecting part in the height direction of the connecting part do not overlap, so as to compensate for the influence of the poor installation position of the connecting part on the tooth restoration and reduce the possibility of the implant shifting. The abutment body and the crown are fixed by the armature and the magnet. The magnetic attraction of the armature and the magnet enables the crown to be stably connected to the abutment body even when the installation position of the connecting part is poor, thus reducing the adverse influence on the stability of the implant.
[0025] 3. When the mounting platform is driven to move, the sliding block and the screw rod slide on the connecting part with the mounting platform. When the mounting platform is adjusted to the position where the crown needs to be installed, the screw rod is driven to move in the direction close to the gums until it is pressed against the side wall of the connecting part, thereby fixing the mounting platform and improving the stability of the connection between the mounting platform and the connecting part. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of the magnetic base in Example 1 of the present application.
[0027] Figure 2 It is a structural diagram showing the positional relationship between the magnet and the armature in Example 1 of the present application.
[0028] Figure 3It is a structural schematic diagram showing the positional relationship between the mounting platform and the adjustment component in Example 2 of the present application.
[0029] Figure 4 It is a structural schematic diagram showing the positional relationship between the sliding block and the connecting part in Example 2 of the present application.
[0030] Explanation of the accompanying drawings: 1. abutment body; 11. mounting platform; 111. cavity; 112. armature; 12. connecting part; 121. countersunk groove; 122. sliding groove; 123. clearance hole; 2. crown; 21. magnet; 3. implant; 31. mounting groove; 4. adjustment assembly; 41. sliding block; 42. screw. DETAILED DESCRIPTION
[0031] The present application is further described in detail below in conjunction with the accompanying drawings.
[0032] The embodiment of the present application discloses a magnetic base.
[0033] Example 1
[0034] Reference Figure 1 and Figure 2 A magnetic abutment includes an abutment body 1. In the embodiment of the present application, the abutment body 1 is set to be an abutment body 1 made of pure titanium. In other embodiments, it can also be an abutment body 1 made of titanium alloy or zirconium oxide. The abutment body 1 includes a cylindrical mounting platform 11 that cooperates with the crown 2. A connecting portion 12 that is parallel to the height direction of the mounting platform 11 and is installed in cooperation with the gums is fixedly connected to one side of the mounting platform 11. The diameter of the connecting portion 12 at one end away from the mounting platform 11 gradually decreases in the direction away from the mounting platform 11. In the embodiment of the present application, the diameter of the mounting platform 11 is 0.4 mm, the height of the connecting portion 12 is 0.9 mm, and the projections of the mounting platform 11 and the connecting portion 12 in the height direction of the connecting portion 12 do not overlap.
[0035] The mounting platform 11 is provided with a cavity 111, in which an armature 112 is installed, and a magnet 21 adapted to the armature 112 is fixedly connected to the side of the crown 2 close to the gum. The mounting platform 11 is fixed by the armature 112 and the magnet 21 attracting each other, and the end of the connecting portion 12 close to the mounting platform 11 is bonded to the side wall of the crown 2.
[0036] The dental crown 2 and the mounting platform 11 are fixed by mutual adsorption of the armature 112 and the magnet 21, so that the dental crown 2 is installed on the gum through the base body 1, providing a long-lasting and constant retention force for the dental crown 2, while facilitating the maintenance of the dental crown 2, and when multiple base bodies 1 are installed, the installed base bodies 1 form a magnetic bridge under the action of the armature 112 and the magnet 21, thereby improving stability.
[0037] The base body 1 is made of pure titanium, titanium alloy or zirconium oxide. During the magnetic resonance examination, artifacts are only formed in a small range around the base body 1, reducing the impact on the magnetic resonance of the head and neck and the whole body; the projections of the mounting platform 11 and the connecting part 12 in the height direction of the connecting part 12 do not overlap, which is convenient for compensating for the impact of the poor installation position of the connecting part 12 on tooth restoration and reducing the possibility of implant deviation. The base body 1 and the crown 2 are fixed by the armature 112 and the magnet 21. The magnetic attraction of the armature 112 and the magnet 21 enables the crown 2 to be stably connected to the base body 1 even when the installation position of the connecting part 12 is not good.
[0038] When the natural tooth root on the gum is usable, the connecting portion 12 is inserted into the natural tooth root and bonded to the natural tooth root, thereby installing the connecting portion 12 on the gum (not shown in the figure). Figure 1 and Figure 2 When the natural tooth root on the gum cannot be used, an implant 3 is inserted and fixedly connected to the gum. The implant 3 is provided with a mounting groove 31 adapted to the connecting portion 12 , and one end of the connecting portion 12 away from the mounting platform 11 is inserted into the mounting groove 31 .
[0039] The connection part 12 is provided with a countersunk groove 121 which coincides with the rotation axis of the connection part 12 . The connection part 12 is fixedly connected to the implant 3 by means of a bolt passing through the countersunk groove 121 and being threadedly connected to the implant 3 .
[0040] When the natural tooth root and the crown 2 are connected through the base body 1, the connecting part 12 is inserted into the natural tooth root and fixed, so as to facilitate the use of the natural tooth root and perceive external stimuli, thereby protecting the tooth root and reducing the possibility of alveolar bone absorption and atrophy, thereby fully supporting the crown 2; when the implant 3 and the crown 2 are connected through the base body 1, the connecting part 12 is inserted into the installation groove 31 and the implant 3 and the connecting part 12 are fixed by bolts, which is convenient for installing and maintaining the implant and improving the stability of the implant.
[0041] The implementation principle of Example 1 is as follows: the dental crown 2 and the mounting platform 11 are fixed by mutual adsorption of the armature 112 and the magnet 21, and can adapt to the installation environment of the implant 3 or the natural tooth root, provide a lasting and constant retention force for the dental crown 2, and facilitate maintenance of the dental crown 2. When multiple abutment bodies 1 are installed, the installed abutment bodies 1 form a magnetic bridge, and the projections of the mounting platform 11 and the connecting part 12 in the height direction of the connecting part 12 do not overlap, which is convenient for compensating for the influence of the poor installation position of the connecting part 12 on tooth restoration. The magnetic attraction of the armature 112 and the magnet 21 enables the dental crown 2 to still be stably connected to the abutment body 1 when the installation position of the connecting part 12 is not good, thereby improving the stability of the implant.
[0042] Example 2
[0043] Reference Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that the mounting platform 11 is slidably connected to the connecting portion 12 along the circumference of the connecting portion 12, and the connecting portion 12 is provided with an adjustment component 4 for adjusting the position of the mounting platform 11 in the circumferential direction of the connecting portion 12. The adjustment component 4 includes a sliding block 41 fixedly connected to the side of the mounting platform 11 close to the connecting portion 12, a semicircular sliding groove 122 is provided on the side of the connecting portion 12 close to the sliding block 41, the sliding block 41 is inserted into the sliding groove 122 and slidably connected to the connecting portion 12, and a fixing piece for fixing the sliding block 41 is provided on the connecting portion 12.
[0044] In the embodiment of the present application, the fixing member is configured as a screw rod 42 located at one end of the connection part 12 close to the mounting platform 11 and parallel to the length direction of the connection part 12. An arc-shaped clearance hole 123 communicating with the sliding groove 122 is provided at the end of the connection part 12. The end of the screw rod 42 passes through the clearance hole 123 and the sliding block 41 and is threadedly connected to the sliding block 41. When fixing the sliding block 41, the screw rod 42 is rotated until the screw rod 42 passes through one end of the sliding block 41 and is tightly pressed against the side wall of the connection part 12.
[0045] The implementation principle of Example 2 is as follows: according to the degree of displacement of the connecting portion 12, the mounting platform 11 is placed on the side of the connecting portion 12 close to the position where the crown 2 needs to be installed, and the mounting platform 11 is driven to drive the sliding block 41 to move in the sliding groove 122. At this time, the sliding block 41 and the screw rod 42 slide with the mounting platform 11. When the mounting platform 11 is adjusted to adapt to the position where the crown 2 needs to be installed, the screw rod is driven to move in the direction close to the gums until it is tightly pressed against the side wall of the connecting portion 12, thereby completing the fixation of the mounting platform 11.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A magnetic base, characterized in that: The invention comprises a base body (1) mounted on a gum, wherein an armature (112) is provided in the base body (1), a magnet (21) adapted to the armature (112) is mounted on a dental crown (2), and the base body (1) is fixed to the dental crown (2) via the armature (112) and the magnet (21).
2. A magnetic base according to claim 1, characterized in that: The base body (1) is configured as a base body (1) made of pure titanium, titanium alloy or zirconium oxide.
3. A magnetic base according to claim 2, characterized in that: The base body (1) comprises a mounting platform (11) connected to a dental crown (2) and a connecting portion (12) connected to a gum, wherein projections of the mounting platform (11) and the connecting portion (12) in a height direction of the connecting portion (12) do not overlap.
4. A magnetic base according to claim 3, characterized in that: The connecting portion (12) is inserted into a natural tooth root on the gum and fixedly connected to the natural tooth root.
5. A magnetic base according to claim 3, characterized in that: An implant (3) adapted to the connecting portion (12) is also installed on the gum; the connecting portion (12) is inserted into the implant (3) and fixedly connected to the implant (3) via bolts.
6. A magnetic base according to claim 4 or 5, characterized in that: The mounting platform (11) is slidably connected to the connecting portion (12) along the circumferential direction of the connecting portion (12), and an adjustment component (4) for adjusting the position of the mounting platform (11) in the circumferential direction of the connecting portion (12) is provided between the mounting platform (11) and the connecting portion (12).
7. A magnetic base according to claim 6, characterized in that: The adjustment assembly (4) comprises a sliding block (41) fixedly connected to a side of the mounting platform (11) close to the connecting portion (12); an arc-shaped sliding groove (122) adapted to the sliding block (41) is provided on an outer side wall on the upper side of the connecting portion (12); the sliding block (41) is inserted into the sliding groove (122) and is slidably connected to the connecting portion (12); and a fixing member for fixing the sliding block (41) is provided on the connecting portion (12).
8. A magnetic base according to claim 7, characterized in that: The fixing member comprises a screw rod (42) located at one end of the connecting portion (12) close to the mounting platform (11); the lower end of the screw rod (42) passes through the side wall of the connecting portion (12) and the sliding block (41) and is threadedly connected to the sliding block (41); a clearance hole (123) communicating with the sliding groove (122) is formed at the end of the connecting portion (12); and the sliding block (41) is fixed by the end of the screw rod (42) being pressed against the side wall of the connecting portion (12).