Base station for deep fit bridge

Abstract

The utility model discloses an abutment for a deep fit bridge, which is characterized in that a lower connecting part of the abutment is connected with an implant, compared with the traditional abutment for the bridge, a cylindrical surface is added, and the abutment for the deep fit bridge has the advantage that the traditional abutment for the bridge is beneficial to obtaining a common positioning path through a first conical surface and the cylindrical surface of the lower connecting part; the matching length of the implant is the same as that of the crown abutment, so that the stress can be dispersed into the implant, and the whole abutment is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of dental implants, in particular to a deep-fitting bridge abutment. Background Art

[0002] The crown abutment has an anti-rotation structure and can be used for single-grain restoration, relying on the anti-rotation structure to provide anti-rotation for the restoration. When restoring multiple grains, it is difficult for the crown abutment to obtain a common positioning path, especially when using an angled abutment, due to the effect of the anti-rotation structure, it is difficult for the upper angled structure to obtain a good position, which further increases the difficulty of positioning. The bridge abutment is specially designed for multiple-grain restorations. It eliminates the anti-rotation structure that cooperates with the abutment and implants, and relies on multiple abutments as a whole to provide anti-rotation function. However, due to the cancellation of the lower anti-rotation structure, the matching length between the abutment and the implant is reduced, which is not conducive to the dispersion of stress to the inside of the implant. Utility Model Content

[0003] The utility model aims to provide a deep-fitting bridge abutment to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A deep-fit ​​bridge abutment, comprising a retaining device, an implant, and a connecting rod, wherein the retaining device is connected to the implant, the retaining device is provided with a through groove, the upper end of the connecting rod is located in the through groove, the retaining device and the connecting rod are tightly connected, and the implant and the connecting rod are threadedly connected;

[0006] The retaining device includes an upper connecting part and a lower connecting part. The upper connecting part and the lower connecting part are fixedly connected. An annular convex strip is provided at the connection between the upper connecting part and the lower connecting part. The lower connecting part is provided with a No. 1 conical surface. The lower connecting part is provided with a cylindrical surface. The diameter of the No. 1 conical surface gradually decreases to the same diameter as the cylindrical surface.

[0007] The retention device, implant and connecting rod cooperate with each other to form a stable dental implant system. The implant provides stability and support. The connecting rod is used to connect the retention device and the implant. The retention device can be installed with a crown. The crown can be installed through the upper connecting part. The annular convex strip can effectively prevent bacteria and physical residues from entering the implant, thereby reducing the risk of infection. The implant can be fixedly connected to the lower connecting part to ensure the stability of the retention device. The cylindrical surface under the No. 1 conical surface makes the deep-fit ​​bridge abutment have the advantage of traditional bridge abutments in obtaining a common positioning channel, and has the same matching length as the crown abutment, so that the matching depth of the retention device and the implant is 2.6mm, which is conducive to the dispersion of stress into the implant, making the entire retention device more stable.

[0008] Furthermore, the upper connecting portion is provided with a snap-in groove.

[0009] The snap-in groove can make the installed crown more stable and effectively prevent the crown from loosening.

[0010] Furthermore, the implant is provided with an anti-rotation structure, and the anti-rotation structure is hexagonal.

[0011] The anti-rotation structure can effectively prevent the retaining device from rotating and loosening.

[0012] Furthermore, the outer diameter of the cylindrical surface is equal to the diameter of the inscribed circle of the anti-rotation structure of the implant.

[0013] Since the lower connecting part has no anti-rotation structure like the traditional bridge abutment, it is easy to obtain a common positioning path when multiple implants are restored, just like the traditional bridge abutment. At the same time, the lower connecting part is provided with a cylindrical surface, and the outer diameter of the cylindrical surface is equal to the inscribed circle diameter of the anti-rotation structure inside the implant.

[0014] Furthermore, the implant is provided with a No. 1 connecting groove, which is tightly connected to the No. 1 conical surface, and the implant is provided with a thread on the outside, and the implant is provided with a No. 2 thread groove, which is threadedly connected to the connecting rod.

[0015] The No. 1 connecting groove allows for precise docking with the retention device, so that the retention device can be firmly installed on the implant. The threads outside the implant can fit more closely with the alveolar bone, thereby preventing the implant from loosening and falling off, and providing long-term stability for the implant.

[0016] Furthermore, the connecting rod is provided with an external thread, the connecting rod passes through the No. 1 connecting groove, the No. 1 connecting groove is adjacent to the No. 2 thread groove, the external thread and the No. 2 thread groove are meshed, a joint is provided at the upper end of the connecting rod, the through groove is provided with a No. 2 conical surface, and the joint and the No. 2 conical surface are tightly connected.

[0017] The external thread of the connecting rod is connected to the No. 2 thread groove, and is fastened by the joint and the No. 2 conical surface, so that the connecting rod can provide a more stable connection between the implant and the retention device, and at the same time makes the retention device easy to install and disassemble.

[0018] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model is connected to the implant through the lower connecting part, and through the No. 1 conical surface and cylindrical surface of the lower connecting part, the deep-fitting bridge abutment has the advantage of the traditional bridge abutment in obtaining a common positioning path, and has the same fitting length as the crown abutment, so that the fitting depth between the retention device and the implant is 2.6mm, which is beneficial to the stress dispersion to the inside of the implant, making the entire retention device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the base structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection between the base and the connecting rod of the utility model;

[0023] Figure 4 It is a schematic diagram of the implant structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the connecting rod structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the connection between the implant and the connecting rod of the utility model;

[0026] In the figure: 1-retention device, 11-upper connecting part, 111-annular convex strip, 112-clamping groove, 12-lower connecting part, 121-conical surface No. 1, 122-cylindrical surface, 2-implant, 21-connecting groove No. 1, 22-thread groove No. 2, 23-anti-rotation structure, 3-connecting rod, 31-external thread. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides the following technical solutions:

[0029] like Figure 1 to Figure 3 As shown, a deep-fit ​​bridge abutment includes a retaining device 1, an implant 2, and a connecting rod 3. The retaining device 1 is connected to the implant 2, and the retaining device 1 is provided with a through groove. The upper end of the connecting rod 3 is located in the through groove. The retaining device 1 and the connecting rod 3 are tightly connected, and the implant 2 and the connecting rod 3 are threadedly connected.

[0030] The retaining device 1 includes an upper connecting part 11 and a lower connecting part 12. The upper connecting part 11 and the lower connecting part 12 are fixedly connected. An annular convex strip 111 is provided at the connection between the upper connecting part 11 and the lower connecting part 12. The lower connecting part 12 is provided with a No. 1 conical surface 121. The lower connecting part 12 is provided with a cylindrical surface 122. The diameter of the No. 1 conical surface 121 gradually decreases to be equal to the diameter of the cylindrical surface 122.

[0031] A stable dental implant system is formed by the cooperation between the retaining device 1, the implant 2 and the connecting rod 3. The implant 2 provides stability and support. The connecting rod 3 is used to connect the retaining device 1 and the implant 2. The retaining device 1 can be installed with a crown. The crown can be installed through the upper connecting part 11. The annular ridge 111 can effectively prevent bacteria and physical residues from entering the implant 2, thereby reducing the risk of infection. The implant 2 can be fixedly connected to the lower connecting part 12 to ensure the stability of the retaining device 1. The cylindrical surface 122 under the No. 1 conical surface 121 makes the deep-fitting bridge abutment have the advantage of traditional bridge abutments in obtaining a common positioning path, and has the same fitting length as the crown abutment, so that the fitting depth of the retaining device 1 and the implant 2 is 2.6 mm, which is conducive to the dispersion of stress into the implant 2, making the entire retaining device 1 more stable.

[0032] like Figure 2 As shown, the upper connecting portion 11 is provided with a snap-in groove 112 .

[0033] The clamping groove 112 can make the installed crown more stable and effectively prevent the crown from loosening.

[0034] like Figure 2 As shown, the implant 2 is provided with an anti-rotation structure 23, and the anti-rotation structure 23 is hexagonal.

[0035] The anti-rotation structure 23 can effectively prevent the retaining device 1 from rotating and loosening.

[0036] like Figure 1-2 As shown, the outer diameter of the cylindrical surface 122 is equal to the diameter of the inscribed circle of the anti-rotation structure 23 of the implant 2 .

[0037] Since the lower connecting portion 12 has no anti-rotation structure like a traditional bridge abutment, it is easy to obtain a common positioning path when multiple implants are restored, just like a traditional bridge abutment. At the same time, the lower connecting portion 12 is provided with a cylindrical surface 122, and the outer diameter of the cylindrical surface 122 is equal to the diameter of the inscribed circle of the anti-rotation structure 23 inside the implant 2.

[0038] like Figure 4 As shown, the implant 2 is provided with a No. 1 connecting groove 21, which is tightly connected to the No. 1 conical surface 121, and the implant 2 is provided with a thread on the outside. The implant 2 is provided with a No. 2 thread groove 22, which is threadedly connected to the connecting rod 3.

[0039] The No. 1 connecting groove 21 can be precisely docked with the retaining device 1, so that the retaining device 1 can be firmly installed on the implant 2. The threads outside the implant 2 can fit more closely with the alveolar bone, thereby preventing the implant 2 from loosening and falling off, and providing long-term stability for the implant 2.

[0040] like Figure 3 , Figure 5 , Figure 6 As shown, the connecting rod 3 is provided with an external thread 31, the connecting rod 3 passes through the No. 1 connecting groove 21, the No. 1 connecting groove 21 and the No. 2 thread groove 22 are adjacent, the external thread 31 and the No. 2 thread groove 22 are meshed, the upper end of the connecting rod 3 is provided with a joint, the through groove is provided with a No. 2 conical surface, and the joint and the No. 2 conical surface are tightly connected.

[0041] The connecting rod 3 is connected to the implant 2 through the external thread 31 and is fastened through the joint and the second conical surface, so that the connecting rod 3 can provide a stable connection between the implant 2 and the retaining device 1, and at the same time make the retaining device 1 easy to install and disassemble.

[0042] The working principle of the utility model is as follows: the implant 2 is installed on the alveolar bone, and the outer thread of the implant 2 can fit more closely with the alveolar bone. The connecting rod 3 can provide a connection for the implant 2 and the retaining device 1. The outer thread 31 of the connecting rod 3 and the No. 2 thread groove 22 are threadedly connected, and the joint of the connecting rod 3 and the No. 2 conical surface are connected. The clamping groove 112 of the retaining device 1 can make the installed crown more stable, and the retaining device 1 is easy to install and disassemble. The upper connecting part 11 is used to connect with the crown, and the lower connecting part 12 is connected with the implant 2. Through the No. 1 conical surface 121 and the cylindrical surface 122 of the lower connecting part 12, the deep-fitting bridge abutment has the advantage of the traditional bridge abutment in obtaining a common positioning path, and has the same fitting length as the crown abutment, so that the fitting depth of the retaining device 1 and the implant 2 is 2.6 mm, which is conducive to the stress dispersion to the inside of the implant 2, making the entire retaining device 1 more stable.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep-fit ​​bridge abutment, characterized in that: The deep-fit ​​bridge abutment comprises a retaining device (1), an implant (2), and a connecting rod (3); the retaining device (1) is connected to the implant (2); the retaining device (1) is provided with a through groove, the upper end of the connecting rod (3) is located in the through groove, the retaining device (1) and the connecting rod (3) are tightly connected, and the implant (2) and the connecting rod (3) are threadedly connected; The retaining device (1) comprises an upper connecting part (11) and a lower connecting part (12); the upper connecting part (11) and the lower connecting part (12) are fixedly connected; an annular convex strip (111) is provided at the connection between the upper connecting part (11) and the lower connecting part (12); the lower connecting part (12) is provided with a first conical surface (121); the lower connecting part (12) is provided with a cylindrical surface (122); the diameter of the first conical surface (121) gradually decreases to the same diameter as the cylindrical surface (122).

2. A deep-fit ​​bridge abutment according to claim 1, characterized in that: The upper connecting portion (11) is provided with a snap-fitting groove (112).

3. A deep-fit ​​bridge abutment according to claim 1, characterized in that: The implant (2) is provided with an anti-rotation structure (23), and the anti-rotation structure (23) is hexagonal.

4. A deep fit bridge abutment according to claim 1, characterized in that: The outer diameter of the cylindrical surface (122) is equal to the diameter of the inscribed circle of the anti-rotation structure (23) of the implant (2).

5. A deep fit bridge abutment according to claim 1, characterized in that: The implant (2) is provided with a No. 1 connecting groove (21), the No. 1 connecting groove (21) and the No. 1 conical surface (121) are tightly connected, the implant (2) is provided with a thread on the outside, the implant (2) is provided with a No. 2 thread groove (22), and the No. 2 thread groove (22) and the connecting rod (3) are threadedly connected.

6. A deep fit bridge abutment according to claim 1, characterized in that: The connecting rod (3) is provided with an external thread (31), the connecting rod (3) passes through a No. 1 connecting groove (21), the No. 1 connecting groove (21) and the No. 2 thread groove (22) are adjacent, the external thread (31) and the No. 2 thread groove (22) are meshed, a joint is provided at the upper end of the connecting rod (3), the through groove is provided with a No. 2 tapered surface, and the joint and the No. 2 tapered surface are tightly connected.

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