Dental implant abutment

Abstract

The utility model discloses a kind of implant tooth abutments, it is related to implant tooth technical field, the abutment includes upper end connecting part, multiple limiting gaps are uniformly distributed on the upper end connecting part along circumference, and limiting protrusions are evenly distributed in the limiting gap along axial direction on the upper end connecting part.The utility model of a kind of implant tooth abutment, the part between the adjacent limiting gap on the upper end connecting part is expanded outward in the process of screw and implanting in the implant body of alveolar bone in oral cavity tightening, the limiting protrusion is engaged with inner side of dental crown, and stability is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, specifically to a dental implant abutment. Background Technology

[0002] As my country's population ages, the number of edentulous cases will continue to increase every year. Compared to expensive foreign products, elderly people in China urgently need edentulous implant products that are suitable for their individual needs.

[0003] Currently, edentulous jaw implantation typically involves first inserting the implant into the alveolar bone within the gums (soft tissue) of the patient's mouth, and then attaching an abutment to the implant. Existing abutments are fixed to the implant with bolts, and the crown is then bonded to the abutment using adhesive. While this method is commonly used, the adhesive will age, dissolve, or fatigue over time. This results in insufficient reliability of the abutment-crown bonding retention method, making the crown prone to loosening and falling off due to adhesive failure, leading to a high failure rate, poor patient experience, and increased maintenance costs.

[0004] The above problems urgently need to be solved, therefore it is necessary to provide a dental implant abutment to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a dental implant abutment in which the upper connecting part expands outward when the bolts are tightened, so that the limiting protrusion engages with the inner side of the crown, thereby enhancing stability.

[0006] To achieve the above objectives, this utility model provides a dental implant abutment, the abutment including an upper connecting part, the upper connecting part having a plurality of limiting gaps evenly distributed circumferentially along its upper edge, and limiting protrusions evenly distributed axially along its upper edge at intervals between the limiting gaps.

[0007] Preferably, the base further includes a support portion, and an upper end connecting portion and a lower end connecting portion located on the upper and lower sides of the support portion, respectively.

[0008] Preferably, the base has a through hole along its height for bolts to pass through, and the through hole is circular.

[0009] Preferably, the lower connecting part consists of a guide ring located in the upper hollow part and a base located in the lower hollow part.

[0010] Preferably, the upper connecting part is a rounded triangle, the limiting gap is distributed on the arc part of the base, and the limiting protrusion is distributed on the straight part of the base.

[0011] Preferably, the height of the limiting gap is less than the height of the upper connecting part.

[0012] Preferably, the limiting protrusion is located in the middle of the upper connecting portion.

[0013] Preferably, the guide ring is a rounded hexagon and the base is a frustum-shaped cone.

[0014] Preferably, the diameter of the through hole in the upper part of the limiting protrusion is larger than the diameter of the through hole in the lower part of the limiting protrusion.

[0015] Preferably, the upper part of the limiting protrusion is sloping, and the lower end of the limiting protrusion is right-angled.

[0016] The beneficial effects of this utility model are as follows: The dental implant abutment of this utility model includes an upper connecting portion, wherein multiple limiting gaps are evenly distributed circumferentially along the upper edge of the upper connecting portion, and limiting protrusions are evenly distributed axially along the upper edge at intervals between the limiting gaps. In the dental implant abutment of this utility model, the portion of the upper connecting portion between adjacent limiting gaps expands outward during the tightening of the bolts with the implant placed on the alveolar bone in the oral cavity, and the limiting protrusions engage with the inner side of the crown, thereby enhancing stability. Attached Figure Description The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 This is a front view of a dental implant abutment according to the present invention; Figure 2 for Figure 1 Left view of a type of dental implant abutment; Figure 3 for Figure 2 A cross-sectional view of a dental implant abutment along section line AA; Figure 4 for Figure 2 A top view of a type of dental implant abutment; Figure 5 for Figure 4 A cross-sectional view of a dental implant abutment along section line BB; Figure 6 for Figure 5 A magnified view of part A in the image.

[0018] 1. Base; 11. Upper connecting part; 111. Limiting gap; 112. Limiting protrusion; 12. Support part; 13. Lower connecting part; 131. Guide ring; 132. Base; 14. Through hole. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Please refer to Figure 1-6 This utility model provides a dental implant abutment 1. The abutment 1 has a through hole 14 along the height direction for bolts to pass through. The abutment 1 includes a support part 12 and an upper end connecting part 11 and a lower end connecting part 13 located on the upper and lower sides of the support part 12, respectively. The upper end connecting part 11 has a plurality of limiting gaps 111 evenly distributed along the circumference. The upper end connecting part 11 is divided into a plurality of elastic "petal-shaped" structures along the circumference. Limiting protrusions 112 are evenly distributed along the axially spaced limiting gaps 111 on the upper end connecting part 11. The part between adjacent limiting gaps 111 on the upper end connecting part 11 expands outward during the tightening of the bolt and the implant implanted in the alveolar bone in the oral cavity. The limiting protrusions 112 engage with the inner side of the crown to enhance stability.

[0021] When the bolts used to fix the abutment 1 itself are tightened into the implant, the head of the bolt will apply downward pressure to the bottom of the inner cavity of the upper connection 11 of the abutment 1. This downward pressure will force the upper connection 11 of the abutment 1 (especially the "lobes" structure) to expand radially outward. As it expands outward, the limiting protrusions 112 evenly distributed on the outer surface of the upper connection 11 will protrude outward. At this time, the shape of the inner surface of the pre-made crown matches the expanded upper connection 11 of the abutment 1. The crown is fitted on the abutment 1, and the outwardly protruding limiting protrusions 112 will tightly engage with the corresponding grooves or structures on the inner surface of the crown, forming a strong mechanical lock.

[0022] In this embodiment, specifically, the upper connecting part 11 is a rounded triangle, the limiting gap 111 is distributed on the arc part of the base 1, and the limiting protrusion 112 is distributed on the straight part of the base 1.

[0023] In this embodiment, specifically, the height of the limiting gap 111 is less than the height of the upper connecting part 11.

[0024] In this embodiment, specifically, the limiting protrusion 112 is located in the middle of the upper connecting portion 11.

[0025] In this embodiment, specifically, the guide ring 131 is a rounded hexagon and the base 132 is a frustum shape.

[0026] In this embodiment, specifically, the lower connecting part 13 is divided into a guide ring 131 located in the upper hollow part and a base 132 located in the lower hollow part.

[0027] In this embodiment, the through hole 14 is specifically circular.

[0028] In this embodiment, specifically, the diameter of the through hole 14 in the upper part of the limiting protrusion 112 is larger than the diameter of the through hole 14 in the lower part of the limiting protrusion 112.

[0029] In this embodiment, specifically, the upper part of the limiting protrusion 112 is sloped, and the lower end of the limiting protrusion 112 is right-angled.

[0030] Therefore, the dental implant abutment 1 of this utility model has at least the following beneficial effects: The mechanical engagement between the limiting protrusion 112 and the inner wall of the crown provides significant advantages such as strong retention, high stability, low cost, and easy operation. It offers stronger and more reliable retention than simple adhesives, greatly reducing the risk of the crown loosening or falling off due to adhesive failure.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. It should be understood that the terms "length," "width," "upper," "lower," "front and back," "left and right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, not to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Based on the preferred embodiments of this utility model, and through the above description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dental implant abutment, characterized in that, The base (1) includes an upper connecting part (11), and multiple limiting gaps (111) are evenly distributed along the circumferential direction on the upper connecting part (11). Limiting protrusions (112) are evenly distributed along the axial direction on the upper connecting part (11) at intervals between the limiting gaps (111).

2. The dental implant abutment of claim 1, wherein The base (1) also includes a support (12), and an upper connecting part (11) and a lower connecting part (13) located on the upper and lower sides of the support (12), respectively.

3. The dental implant abutment of claim 1, wherein The base (1) has a through hole (14) along the height direction for bolts to pass through, and the through hole (14) is circular.

4. The dental implant abutment of claim 2, wherein The lower connecting part (13) is divided into a guide ring (131) located in the upper hollow part and a base (132) located in the lower hollow part.

5. The dental implant abutment of claim 1, wherein The upper connecting part (11) is a rounded triangle, the limiting gap (111) is distributed on the arc part of the base (1), and the limiting protrusion (112) is distributed on the straight part of the base (1).

6. The dental implant abutment of claim 1, wherein The height of the limiting gap (111) is less than the height of the upper connecting part (11).

7. The dental implant abutment of claim 1, wherein The limiting protrusion (112) is located in the middle of the upper connecting part (11).

8. The dental implant abutment of claim 4, wherein, The guide ring (131) is a rounded hexagon, and the base (132) is a frustum.

9. The dental implant abutment of claim 3, wherein, The diameter of the through hole (14) in the upper part of the limiting protrusion (112) is larger than the diameter of the through hole (14) in the lower part of the limiting protrusion (112).

10. The dental implant abutment of claim 1, wherein The upper part of the limiting protrusion (112) is sloping, and the lower end of the limiting protrusion (112) is right-angled.

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