Abutment and dental implant assembly

Abstract

The utility model relates to the technical field of dental medical treatment, in particular to an abutment and a dental implant component, the abutment comprises a first connecting part used for being connected with a dental crown, a second connecting part used for being connected with an implant and a partition part arranged between the first connecting part and the second connecting part, a clamping groove is formed in the dental crown, and the partition part is connected with the implant. A clamping groove is formed in the base table, a hole is formed in the side wall of the first connecting part, a clamping part corresponding to the clamping groove is arranged on the edge of the hole, a screw is arranged in the base table and can abut against the clamping part, and the clamping part deforms outwards in the radial direction of the first connecting part, so that the clamping part and the clamping groove are connected in a clamped mode. Therefore, high connection strength between the abutment and the dental crown can be achieved by using a small amount of binder.

Description

Technical Field

[0001] The utility model relates to the technical field of dental medical treatment, in particular to an abutment and a dental implant component. Background Art

[0002] Dental implants consist of three parts: implant, crown and base. One end of the implant is embedded and fixed to the patient's alveolar bone, and the other end is generally fixed to the base by threaded connection. The crown is a "false tooth" that replaces the patient's damaged teeth and cooperates with other teeth to achieve occlusion. It is fixedly installed on the outside of the base.

[0003] During clinical use, dental crowns are generally customized according to the patient's oral cavity, and during the customization process, preset perforations are made on the maxillary surface of the crown for the screws on the abutment used to connect the implant to pass through. During clinical implantation, the crown is placed on the abutment, and the crown and abutment are connected together using screws or adhesives, thereby connecting the crown, abutment and implant into one, and finally the perforations are sealed.

[0004] In actual operation, the amount of adhesive used to fix the crown is difficult to control. If too much adhesive is used, the excess adhesive will easily stain the patient's gums and cause gingivitis; if too little adhesive is used, it will be difficult to ensure the connection strength between the crown and the abutment. Utility Model Content

[0005] In view of the above problems existing in the prior art, the utility model provides an abutment, which can achieve a high connection strength between the abutment and the crown by using a small amount of adhesive.

[0006] The technical solution adopted by the utility model to solve its technical problems is: providing a first connection part for connecting with a crown, a second connection part for connecting with an implant, and a partition part arranged between the first connection part and the second connection part, wherein a clamping groove is arranged in the crown, a hole is arranged on the side wall of the first connection part, a clamping part corresponding to the clamping groove is arranged at the edge of the hole, a screw is arranged in the base, the screw can abut against the clamping part, and the clamping part is deformed radially outward along the first connection part so that the clamping part and the clamping groove are clamped.

[0007] Furthermore, the first connecting portion is a hollow rounded prism structure, and the inner diameter of the first connecting portion gradually decreases from the middle of the first connecting portion to the lower edge of the clamping portion.

[0008] Furthermore, the inner surface of the second connecting portion is provided with a first thread segment.

[0009] Furthermore, the screw includes a nut, a connecting rod connected to the nut, and a second thread segment corresponding to the first thread segment, and the nut can be abutted against the clamping portion.

[0010] Furthermore, the second threaded section is located at an end of the connecting rod away from the nut.

[0011] Furthermore, the diameter of the second threaded section is greater than the diameter of the connecting rod.

[0012] Furthermore, the second thread segment passes through the first thread segment, and the second thread segment and the first thread segment form an axial limit.

[0013] Furthermore, the second connecting portion includes, from bottom to top, a first positioning portion, a circumferential limiting portion and a second positioning portion.

[0014] Furthermore, the circumferential limiting portion is a hollow prism structure, and the circumferential limiting portion can circumferentially limit the base.

[0015] A second object of the present invention is to provide a dental implant assembly having a base in any of the above-mentioned solutions.

[0016] The beneficial effects of the utility model are as follows: the utility model provides an abutment, comprising a first connection part for connecting to a dental crown, a second connection part for connecting to an implant, and a partition part arranged between the first connection part and the second connection part, a clamping groove is arranged in the dental crown, a hole is arranged on the side wall of the first connection part, a clamping part corresponding to the clamping groove is arranged at the edge of the hole, a screw is arranged in the abutment, the screw can resist the clamping part, the clamping part is deformed radially outward along the first connection part, so that the clamping part and the clamping groove are clamped, so that a high connection strength can be achieved between the abutment and the dental crown using a small amount of adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 Shown is a schematic diagram of the structure of a base;

[0019] Figure 2 Shown Figure 1 Top view of the mid-abutment;

[0020] Figure 3 Shown Figure 2 AA section view of the mid-abutment;

[0021] Figure 4 Shown Figure 1Structural cross-sectional view of the middle abutment and crown when connected;

[0022] Among them, the figure marks in the figure are: 10, base; 11, first connecting part; 111, hole; 112, clamping part; 113, transition surface; 12, second connecting part; 121, first positioning part; 122, circumferential limiting part; 123, second positioning part; 124, first threaded section; 13; partition; 14, screw; 141, nut; 142, connecting rod; 143, second threaded section.

[0023] 20. Crown; 21. Perforation; 22. Snap-in slot. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the composition related to the utility model. Obviously, the described embodiment is a part of the embodiment 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 making creative work are within the scope of protection of the utility model.

[0025] refer to Figure 1-4 As shown, a dental implant assembly provided by the present invention includes an implant (not shown) installed in the alveolar bone of a patient, an abutment 10 connected to the implant, and a crown 20 connected to an end of the abutment 10 away from the implant. The implant and the abutment 10 can be connected together by thread or screw fastening, and the abutment 10 and the crown 20 can be connected together by adhesive and / or screw fastening.

[0026] refer to Figure 1 As shown, the base 10 is generally a hollow cylindrical structure, and the base 10 includes a first connecting portion 11 for connecting the crown 20, a second connecting portion 12 for connecting the base 10, and a partition 13 arranged between the first connecting portion 11 and the second connecting portion 12. The first connecting portion 11, the second connecting portion 12 and the partition 13 of the base 10 are all integrally formed, specifically, the blank is integrally cut and formed by a machine tool.

[0027] Combination Figure 2 and Figure 3As shown, the first connection part 11 is generally a hollow rounded prism structure, a hole 111 is provided on the side wall of the first connection part 11, a clamping part 112 is provided on the edge of the hole 111, and the inner diameter of the first connection part 11 gradually decreases in the direction of the partition part 13. In this embodiment, the first connection part 11 is a hollow rounded triangular prism structure, and holes 111 are provided on the three side walls of the first connection part 11, and the three holes 111 are located at one end of the first connection part 11 close to the partition part 13. The clamping part 112 is located at the edge of one side of the hole 111 away from the partition part 13, and the clamping part 112 extends to the middle of the hole 111 in the direction of the partition part 13, so that the hole 111 is generally U-shaped. The inner diameter of the first connection part 11 gradually decreases from the middle of the first connection part 11 to the lower edge of the clamping part 112.

[0028] Combination Figure 1 As shown, a side surface of the clamping portion 112 away from the central axis of the first connecting portion 11 protrudes from the outer surface of the second connecting portion 12 , and an inclined transition surface 113 is provided between the side surface of the clamping portion 112 away from the central axis of the first connecting portion 11 and the surface of the second connecting portion 12 .

[0029] The partition 13 is an annular structure surrounding the first connecting portion 11 and the second connecting portion 12. The upper surface of the partition 13 is used to abut against the lower edge of the crown 20 to limit the depth of the first connecting portion 11 inserted into the crown 20; the lower surface of the partition 13 is used to abut against the upper edge of the implant to limit the depth of the second connecting portion 12 inserted into the implant.

[0030] refer to Figure 1 and Figure 3 As shown, the shape of the outer surface of the second connecting portion 12 is adapted to the shape of the inner surface of the implant. In this embodiment, the second connecting portion 12 is composed of a first positioning portion 121, a circumferential limiting portion 122 and a second positioning portion 123 from bottom to top. The first positioning portion 121 is roughly a hollow truncated cone, and the second connecting portion 12 can be easily inserted into the implant through the first positioning portion 121. The circumferential limiting portion 122 is roughly a hollow prism structure, and the circumferential limiting portion 122 cooperates with the inner wall of the implant, thereby circumferentially limiting the abutment 10 to prevent the abutment 10 from rotating relative to the implant. The second positioning portion 123 is also roughly a hollow truncated cone, which, on the one hand, facilitates the insertion of the second connecting portion 12 into the implant, and on the other hand, strengthens the strength between the second connecting portion 12 and the partition 13 to prevent the abutment 10 from breaking.

[0031] The inner surface of the second connection portion 12 is provided with a first thread segment 124. In this embodiment, the first thread segment 124 is located on the inner surface of one end of the second connection portion 12 close to the partition 13. In other embodiments, the first thread segment 124 may also extend to the lower edge of the second connection portion 12.

[0032] refer to Figure 3 and Figure 4 As shown, a screw 14 is also provided inside the base 10, and the screw 14 includes a nut 141, a connecting rod 142 connected to the nut 141, and a second threaded section 143 provided at one end of the connecting rod 142 away from the nut 141, and the diameter of the second threaded section 143 is larger than the diameter of the connecting rod 142. The circumferential side wall of the nut 141 can abut against a side surface of the clamping portion 112 close to the central axis of the first connecting portion 11, so that the clamping portion 112 is deformed radially outward along the first connecting portion 11. The second threaded section 143 can mesh with the first threaded section 124. In this embodiment, the second threaded section 143 forms an axial limit with the first threaded section 124 after passing through the first threaded section 124, so as to prevent the screw 14 from falling off the base 10 and facilitate pre-installation. The first threaded section 124 can extend into the implant, thereby connecting the implant to the base 10.

[0033] refer to Figure 4 As shown, the crown 20 is provided with a through hole 21 corresponding to the first connecting portion 11, and the inner surface of the through hole 21 is provided with a clamping groove 22 corresponding to the clamping portion 112. The outer wall of the rounded prism-shaped first connecting portion 11 cooperates with the inner wall of the through hole 21 to limit the crown 20 circumferentially to prevent the crown 20 from rotating.

[0034] Combination Figure 1-4 As shown, the installation process of a base 10 and a crown 20 provided by the utility model is as follows: After the base 10 is preliminarily connected to the implant through the first threaded section 124, the doctor applies an appropriate amount of adhesive in the perforation 21 of the crown 20. The adhesive serves to connect the base 10 and the crown 20 on one hand, and to fill the gap between the base 10 and the crown 20 on the other hand to prevent bacterial erosion. The doctor then installs the crown 20 on the first connecting portion 11 of the base 10 at a suitable angle. The first connecting portion 11 is located in the perforation 21, and the clamping portion 112 on the first connecting portion 11 corresponds to the clamping groove 22 on the inner surface of the perforation 21 of the crown 20. The doctor uses a tool to pass through the perforation 21 to tighten the screw 14 in the base 10 to strengthen the connection strength between the base 10 and the implant. During this process, the circumferential side wall of the nut 141 abuts against the side surface of the clamping portion 112 close to the central axis of the first connecting portion 11, and the clamping portion 112 is deformed radially outward along the first connecting portion 11 and extends into the clamping groove 22, thereby strengthening the connection strength between the base 10 and the crown 20, and avoiding too little adhesive coating resulting in too low a connection strength between the base 10 and the crown 20. If too much adhesive is coated, the excess adhesive enters the hole 111, which, on the one hand, avoids the excess adhesive from being stained on the patient's gums and causing the patient's gums to become inflamed, and on the other hand, can further enhance the connection strength between the base 10 and the crown 20.

[0035] The utility model provides a base with beneficial effects: it includes a first connecting part 11 for connecting with a crown 20, a second connecting part 12 for connecting with an implant, and a partition 13 arranged between the first connecting part 11 and the second connecting part 12, a clamping groove 22 is arranged in the crown 20, a hole 111 is arranged on the side wall of the first connecting part 11, a clamping part 112 corresponding to the clamping groove 22 is arranged at the edge of the hole 111, a screw 14 is arranged in the base 10, the screw 14 can resist the clamping part 112, the clamping part 112 is deformed radially outward along the first connecting part 11, so that the clamping part 112 and the clamping groove 22 are clamped, so that a small amount of adhesive can be used to make the base 10 and the crown 20 have a higher connection strength.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A base station, characterized in that: It includes a first connecting part for connecting to a dental crown, a second connecting part for connecting to an implant, and a partition part arranged between the first connecting part and the second connecting part, wherein a snap-in groove is arranged in the dental crown, a hole is arranged on the side wall of the first connecting part, a snap-in part corresponding to the snap-in groove is arranged at the edge of the hole, a screw is arranged in the base, the screw can abut against the snap-in part, and the snap-in part is deformed radially outward along the first connecting part so that the snap-in part and the snap-in groove are snap-fitted.

2. The base according to claim 1, characterized in that: The first connecting portion is a hollow rounded prism structure, and the inner diameter of the first connecting portion gradually decreases from the middle of the first connecting portion to the lower edge of the clamping portion.

3. The base according to claim 2, characterized in that: The inner surface of the second connecting portion is provided with a first thread segment.

4. The base according to claim 3, characterized in that: The screw comprises a nut, a connecting rod connected to the nut, and a second thread segment corresponding to the first thread segment, and the nut can be abutted against the clamping portion.

5. The base according to claim 4, characterized in that: The second threaded section is located at an end of the connecting rod away from the nut.

6. The base according to claim 4, characterized in that: The diameter of the second threaded section is greater than the diameter of the connecting rod.

7. The base according to claim 6, characterized in that: The second thread segment passes through the first thread segment, and the second thread segment and the first thread segment form an axial limit.

8. The base according to claim 3, characterized in that: The second connecting portion includes, from bottom to top, a first positioning portion, a circumferential limiting portion and a second positioning portion.

9. The base according to claim 8, characterized in that: The circumferential limiting portion is a hollow prism structure, and the circumferential limiting portion can limit the circumferential position of the base.

10. A dental implant assembly, characterized in that: Comprising the base according to any one of claims 1 to 9.

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