Dental implant with multi-section structure

Abstract

The utility model discloses a dental implant with a multi-section structure, which comprises a first conical section, a second conical section and a third conical section which are arranged from bottom to top, and the diameters of the first conical section, the second conical section and the third conical section are sequentially increased. A first cylindrical section connected with the first conical section and the second conical section is arranged between the first conical section and the second conical section, and a second cylindrical section connected with the second conical section and the third conical section is arranged between the second conical section and the third conical section. A hole body which is provided with a top opening and is used for mounting an abutment is formed in the dental implant from the third conical section to the second conical section; and the hole body consists of an upper conical hole section, a middle hexagonal hole section and a lower conical hole section. The dental implant is convenient to screw in, and excellent initial stability can be obtained.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, and in particular to a dental implant with a multi-segment structure. Background Technology

[0002] Dental implants are surgically inserted into the alveolar bone of the maxilla and mandible to accommodate one or more missing teeth. The implants achieve complete osseointegration with the alveolar bone, resulting in excellent mechanical properties that support and resist denture displacement, restoring or reconstructing the function and morphology of the missing dentition.

[0003] Currently, there are many types of dental implants, but many problems still exist. For example, the overall structure and shape of most dental implants are relatively simple. For instance, the Chinese utility model patent with publication number CN106109036A has a cylindrical shape, which is relatively simple. In addition, the outer diameter is basically the same from bottom to top, which makes it difficult for the implant to be screwed in smoothly. Moreover, the torque during the screwing process does not change much, and the implant cannot become "tighter and tighter" during the implantation process. After the implantation depth reaches the expected depth, it is difficult to achieve a good tight integration between the implant and the alveolar bone.

[0004] Therefore, improving the initial stability of dental implant placement and enhancing the tightness of the integration between the dental implant and the alveolar bone while facilitating insertion are the goals of dental implant structural design improvements. Utility Model Content

[0005] To address the problems of existing dental implants being difficult to screw in due to their simple shape and having weak initial stability after implantation, this invention proposes a new dental implant with a multi-segment structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: providing a dental implant with a multi-segment structure, including a first conical segment, a second conical segment, and a third conical segment arranged from bottom to top, wherein the diameters of the first conical segment, the second conical segment, and the third conical segment increase sequentially; a first cylindrical segment connecting the first conical segment and the second conical segment is provided between the first conical segment and the second conical segment; a second cylindrical segment connecting the second conical segment and the third conical segment is provided between the second conical segment and the third conical segment; and a hole with a top opening for abutment installation is provided in the dental implant from the third conical segment to the second conical segment, wherein the hole is composed of an upper conical hole segment, a middle hexagonal hole segment, and a lower conical hole segment.

[0007] Preferably, the length of the second cylindrical segment along the axial direction is longer than the length of the first cylindrical segment along the axial direction, and the length of the second conical segment is longer than the lengths of the first conical segment and the third conical segment, respectively.

[0008] Preferably, the top of the third conical segment is constructed as a cylindrical segment with an outer diameter slightly larger than the outer diameter of the top of the third conical segment.

[0009] Preferably, the lower part of the cylindrical segment is constructed in a conical shape to connect with the top of the third conical segment.

[0010] Preferably, the dental implant containing the first and second conical segments has a groove, the two sides of which penetrate the sidewall of the dental implant, the bottom of which penetrates the bottom of the dental implant, and the groove extends axially upward to the lower middle part of the second conical segment. The groove has cutting grooves extending to the sides at the lower part of the two sides, and the two cutting grooves have the same direction of rotation.

[0011] Preferably, one side wall of the cutting groove is a vertical wall that cuts in radially, and the other side wall is a lateral wall that intersects the vertical wall at an angle of slightly greater than 90 degrees, and the connection between the vertical wall and the lateral wall forms an intersecting connecting line that is vertical at the bottom and arc-shaped at the top.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] The overall structure of the dental implant of this invention has been optimized and improved. It adopts an alternating superposition of multiple conical and cylindrical structures to form a multi-segment dental implant structure. In addition, the upper diameter is slightly thicker than the lower diameter, forming a structure with the outer diameter gradually increasing from bottom to top. This multi-segment structure with the diameter gradually increasing not only facilitates the smooth screwing of the dental implant, but also increases the screwing torque value as the diameter gradually increases. That is, the implantation process becomes "tighter and tighter". After the implantation depth reaches the expected depth, the dental implant can be tightly integrated with the alveolar bone, and the torque value can reach the expected value, which can effectively improve the initial stability of the dental implant after implantation. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of a dental implant with a multi-segment structure proposed in this utility model without external threads (the external threads are not shown to clearly show the specific external structure of each segment);

[0015] Figure 2 for Figure 1 Enlarged diagram of point A in the diagram;

[0016] Figure 3 This is a partial three-dimensional structural diagram of a dental implant with a multi-segment structure proposed in this utility model (the groove is not shown to clearly show the shape and structure of the cutting groove);

[0017] As shown in the figure:

[0018] First conical segment 1, second conical segment 2, third conical segment 3, first cylindrical segment 4, second cylindrical segment 5, hole body 6, upper conical hole segment 61, middle hexagonal hole segment 62, lower conical hole segment 63, cylindrical segment 7, conical segment 8, groove body 9, cutting groove 10, vertical wall 101, lateral wall 102, intersecting connecting line 103. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Existing dental implants, due to their relatively simple overall shape and structure, cannot simultaneously address the issues of ease of insertion and effective improvement of initial implant stability. This invention provides a dental implant with a multi-segment structure. By optimizing and improving the internal and external shapes and structure of the implant, a multi-segment structure with closely approximate internal and external shapes is obtained, thereby simultaneously solving the problems of ease of insertion and effective improvement of initial implant stability. It should be noted that the internal and external shapes can be understood as the holes 100 (not shown) provided in the upper part of the dental implant for mounting the abutment (not shown). The abutment is another component required during oral implantation.

[0022] refer to Figures 1-3A dental implant with a multi-segment structure is provided. The dental implant includes a first conical segment 1, a second conical segment 2, and a third conical segment 3 arranged from bottom to top. A first cylindrical segment 4 is provided between the first conical segment 1 and the second conical segment 2 to connect the first conical segment 1 and the second conical segment 2. A second cylindrical segment 5 is provided between the second conical segment 2 and the third conical segment 3 to connect the second conical segment 2 and the third conical segment 3. The first conical segment 1, the second conical segment 2, and the third conical segment 3 can be understood as having a frustum-like shape. The diameter of each segment gradually increases from bottom to top, and the outer diameter of the first conical segment 1 is slightly smaller than that of the second conical segment 2, while the outer diameter of the second conical segment 2 is slightly smaller than that of the third conical segment 3. This means that the outer diameter increases as it gets closer to the top, forming a three-level tapered structure. However, due to the addition of the first cylindrical segment 4 and the second cylindrical segment 5, the diameter does not increase continuously. Instead, the first cylindrical segment 4 is set at the top of the first conical segment 1 for transitional connection, and the second cylindrical segment 5 is set at the top of the second conical segment 2 for transitional connection, ultimately forming a three-level discontinuous tapered structure. This creates a transition and buffer during the screwing process, minimizing excessive friction and heat generation between the dental implant and the alveolar bone. The aforementioned three-level discontinuous tapered shape structure not only makes insertion more convenient, but also increases the torque value during insertion as the diameter interval increases with the different tapered shape structure. In other words, the dental implant insertion process becomes "tighter and tighter". After the implantation depth reaches the expected depth, the dental implant is tightly integrated with the alveolar bone, and the torque value can reach the expected value.

[0023] In this embodiment, the dental implant containing the third conical segment 3 to the second conical segment 2 is provided with a top-opening hole 6 for mounting the abutment (not shown). The hole 6 is composed of an upper conical hole segment 61, a middle hexagonal hole segment 62, and a lower conical hole segment 63. It can be seen that, in addition to employing a three-stage discontinuous tapered shape, the dental implant also ensures that the shape and structure of the hole 6 located in the upper middle part closely resemble the overall shape and structure of the dental implant. This makes the internal and external shape and structure of the entire dental implant more consistent, minimizing the possibility of some parts having very thick walls and others having very thin walls. Therefore, the dental implant experiences balanced stress during screwing in and mounting the abutment, making it more durable.

[0024] In this embodiment, the lengths of each segment are set as follows: Specifically, the axial length of the second cylindrical segment 5 is longer than that of the first cylindrical segment 4, and the length of the second conical segment 2 is longer than that of the first conical segment 1 and the third conical segment 3, respectively. This length setting significantly lengthens the second cylindrical segment 5 and the second conical segment 2 near the middle position, ensuring that the dental implant has at least one conical segment and one cylindrical segment near the middle position, avoiding the presence of too many conical and cylindrical segments near the middle position. This prevents excessive or excessive diameter changes in the middle position, which could weaken the implant's strength.

[0025] In this embodiment, the top of the third conical segment 3 is constructed with a cylindrical segment 7 whose outer diameter is slightly larger than the outer diameter of the top of the third conical segment 3. With this cylindrical segment 7, after screwing in, because the outer diameter of the cylindrical segment 7 is slightly larger than the outer diameter at the top of the third conical segment 3, the cylindrical segment 7 bulges slightly outward, effectively preventing bacteria from penetrating and invading the area around the implant.

[0026] Specifically, the lower part of the cylindrical segment 7 is constructed into a conical shape 8 to connect with the top of the third conical segment 3. After the conical shape 8 is set, it can form a smooth transition connection with the third conical segment 3, which is conducive to the final stage of screwing in.

[0027] During the screwing process, to facilitate screwing in and reduce screwing time, and to allow the dental implant to elastically expand outward in the lower middle part, in this embodiment, a groove 9 is provided on the dental implant containing the first conical segment 1 and the second conical segment 2. The two sides of the groove 9 penetrate the sidewalls of the dental implant, and the bottom of the groove 9 penetrates the bottom of the dental implant. The groove 9 extends axially upward to the lower middle part of the second conical segment 2, and cutting grooves 10 extending laterally are constructed on the lower parts of both sides of the groove 9, with the two cutting grooves 10 rotating in the same direction. In this embodiment, the groove 9 provides the lower middle part of the dental implant with outward elasticity, creating a good expansion effect after screwing in, resulting in a more secure connection. The cutting grooves 10, during the screwing process, generate cutting force, accelerating the screwing speed, facilitating the screwing process, and further reducing the screwing time. It should be noted that in this embodiment, the cutting groove 10 is specifically set on the groove body 9, and the two are integrated. This avoids opening too many independent grooves on the dental implant, thereby ensuring the integrity of the dental implant and the connection strength between them, while also having the above-mentioned effects of the two grooves.

[0028] Specifically, as an improvement and optimization of the cutting groove 10, one side wall of the cutting groove 10 is a vertical wall 101 that cuts in radially, and the other side wall is a lateral wall 102 that intersects the vertical wall 101 at an angle slightly greater than 90 degrees. The connection between the vertical wall 101 and the lateral wall 102 forms an intersecting connecting line 103 that is vertical at the bottom and arc-shaped at the top. With this structure, the cutting groove 10 experiences less resistance during the actual insertion of the dental implant, resulting in excellent cutting force.

[0029] It should be noted that, for dental implants, except for the cylindrical segment 7 at the top, the first conical segment 1, the second conical segment 2, the third conical segment 3, the first cylindrical segment 4, and the second cylindrical segment 5 are all machined with external threads, while the lower conical hole segment 63 is machined with internal threads. It is particularly important to note that... Figure 3 To clearly show the specific shape and structure of the cutting groove 10, the groove body 9 is not shown. The arrangement of the groove body 9 can be referred to Figure 1 The state shown in the image.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dental implant having a multi-segment structure, characterized by: The implant comprises a first conical section, a second conical section and a third conical section arranged from bottom to top, the diameters of the first, second and third conical sections increase in turn, a first cylindrical section is arranged between the first and second conical sections to connect the first and second conical sections, a second cylindrical section is arranged between the second and third conical sections to connect the second and third conical sections, and finally a three-stage discontinuous conical profile structure is formed. A hole body with an open top for installing an abutment is arranged in the implant, the hole body comprises an upper conical hole section, a middle hexagonal hole section and a lower conical hole section.

2. The dental implant having a multi-stage structure according to claim 1, characterized in that: The length of the second cylindrical section along the axial direction is longer than the length of the first cylindrical section along the axial direction, and the length of the second conical section is longer than the length of the first and third conical sections.

3. The dental implant having a multi-stage structure according to claim 1 or 2, characterized in that: The top of the third conical section is configured as a cylindrical section with an outer diameter slightly larger than the outer diameter of the top of the third conical section.

4. The dental implant having a multi-stage structure according to claim 3, characterized in that: The lower part of the cylindrical section is configured as a conical section to connect the top of the third conical section.

5. The dental implant having a multi-stage structure according to claim 1, characterized in that: A groove is arranged on the implant where the first and second conical sections are located, the groove penetrates the side wall of the implant at both sides, penetrates the bottom of the implant at the bottom, extends upward along the axial direction to the middle and lower part of the second conical section, and the lower part of the groove at both sides is configured as a cutting groove extending to the side, and the rotation directions of the two cutting grooves are the same.

6. The dental implant having a multi-stage structure according to claim 5, characterized in that: One side wall of the cutting groove is a vertical wall cut along the radial direction, the other side wall is a lateral wall intersecting with the vertical wall at an angle greater than 90 degrees, and the connection between the vertical wall and the lateral wall forms an intersection connection line with the lower part vertical and the upper part arc-shaped.

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