A modular implant abutment for maxillary central incisors

Abstract

This application relates to a modular implant abutment for maxillary central incisors. The abutment has a collar, one end of which is connected to the implant, and the other end is provided with a filling part. The end face of the filling part has a concave surface. The highest point of the outer edge of the concave surface is flush with the outer edge of the gingiva of the jawbone cavity. The inner wall of the concave surface fits against the outer wall of the root of the prosthesis. This utility model has the advantages of eliminating the need for multiple adjustments to the shape of the temporary prosthesis and improving the work efficiency of chairside operation.

Description

Technical Field

[0001] This application relates to the field of oral implant technology, and in particular to a modular implant abutment for the maxillary central incisor. Background Technology

[0002] Dental implants, also known as dental implants or artificial tooth roots, are implanted into the upper and lower jawbones at the site of tooth loss through surgical procedures. After the surgical wound heals, a prosthetic tooth is then installed on top of the implant.

[0003] As scholars at home and abroad gain a deeper understanding of transgingival contours and patients demand more from minimally invasive and aesthetically pleasing procedures, the precise transfer of transgingival contours and the innovative application of implant abutments are increasingly being demonstrated in the dental implant treatment process.

[0004] To achieve the final aesthetic restoration, it is often necessary to adjust the shape of the temporary restoration multiple times and transmit the transgingival contour information through a personalized transfer bar in order to fabricate the final restoration. However, since the implants and abutments in the current technology are difficult to fit the patient's gingiva, there are problems such as increased patient follow-up visits and extended chairside operation time, which are inefficient. At the same time, multiple abutment disassemblies are not conducive to the stability and maintenance of the soft tissue around the implant. In addition, the transmission of personalized transfer bars will inevitably cause errors. Utility Model Content

[0005] This application provides a modular implant abutment for maxillary central incisors to address the problem of patients needing to make multiple follow-up visits, resulting in low efficiency.

[0006] In a first aspect, this application provides a modular implant abutment for maxillary central incisors, comprising: The abutment ring has one end connected to the implant and the other end provided with a filling part. The end face of the filling part has a concave surface. The highest point of the outer edge of the concave surface is flush with the outer edge of the gingiva of the jawbone cavity. The inner wall of the concave surface fits against the outer wall of the root of the prosthesis.

[0007] Furthermore, the outer diameter of the concave surface is 4.0mm-6.0mm.

[0008] Furthermore, the height of the base collar is 4.0mm-6.0mm, the outer diameter of the filling part is 4.5mm-6.5mm, the root square outer diameter of the base collar is 3.5mm-4.5mm, and the inner diameter of the base collar is 2.1mm-2.7mm, so that the cross-section of the base collar is an inverted cone shape.

[0009] Furthermore, the sidewall of the filling portion is provided with an arc surface, which allows soft tissue outside the jawbone cavity to grow along the arc surface.

[0010] Furthermore, the implant is provided with an installation part at the junction with the abutment collar, the abutment collar is embedded in the installation part, the bottom wall of the installation part is provided with a first connecting groove extending downward, and the bottom of the concave surface is provided with a second connecting groove communicating with the installation part.

[0011] Furthermore, it also includes a connecting rod that passes through the first connecting groove and the second connecting groove to connect the implant to the abutment collar.

[0012] Furthermore, the top of the connecting rod is flush with the bottom of the concave surface, and the diameter of the connecting rod is 2mm-2.5mm, and the height is 4mm-6mm.

[0013] Furthermore, the top of the connecting rod is provided with a nut, the top of which is flush with the bottom of the concave surface. The nut has a cross-shaped screw hole, which is used to disassemble the connecting rod to facilitate the connection of the denture connector.

[0014] Furthermore, the outer diameter of the nut is 3.4mm-4.4mm, and the height is 2mm-4mm.

[0015] Furthermore, both the implant and the abutment collar are made of titanium alloy.

[0016] The technical solution provided in this application has the following advantages compared with the prior art: In the technical solution of this application, a filling part is provided on the abutment collar, and a concave surface is provided on the top end face of the filling part, so that the outer wall of the root of the denture fits with the inner wall of the concave surface, thereby minimizing the gap between the denture and the abutment collar. By using data collected from patients by clinical staff to limit the diameter of the concave surface, the step of repeatedly adjusting the shape of the temporary restoration can be eliminated, thus improving the efficiency of chairside operation. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This application provides a schematic diagram of a combined implant abutment for the maxillary central incisor. Figure 2 for Figure 1 The schematic diagram of the cross-sectional structure shown; Figure 3 for Figure 1 The diagram shown is a structural schematic of the planter without a planting platform installed. Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure shown in the figure; Figure 5 for Figure 1 The diagram shows a top-down view of the structure. Figure 6 This is a schematic diagram showing the position of the abutment collar and the gingiva in the prior art.

[0021] Explanation of reference numerals in the attached figures: 1. Implant; 10. Mounting part; 100. First connecting groove; 2. Abutment collar; 20. Filling part; 200. Concave surface; 2000. Second connecting groove; 201. Arc surface; 3. Connecting rod; 30. Nut; 300. Screw opening; 4. Gingivet; 5. Gap; 6. Denture. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0025] To address the technical problem of high patient follow-up visits in existing technologies, this application provides a modular implant abutment for maxillary central incisors, which can reduce the number of follow-up visits and improve chairside operation efficiency.

[0026] Firstly, Figures 1 to 6 A combined implant abutment for maxillary central incisors provided in this application embodiment includes an abutment collar 2, one end of which is connected to the implant 1, and the other end is provided with a filling part 20. The end face of the filling part 20 is provided with a concave surface 200. The highest point of the outer edge of the concave surface 200 is flush with the outer edge of the gingiva 4 of the jawbone hole, and the inner wall of the concave surface 200 is in contact with the outer wall of the root of the denture 6.

[0027] Understandably, the implant 1 in this solution is similar in specifications to that in existing technologies. A hole is first drilled in the jawbone, and then the implant 1 is placed into the jawbone hole. Its function is to replace part of the natural tooth root. Thus, once the prosthesis 6 is installed on top of the abutment ring 2, the implant 1 can provide support, allowing the patient to bite normally. It should be noted that in existing technologies, the top surface of the abutment ring 2 is flat, resulting in a noticeable gap 5 between the prosthesis 6 and the top of the abutment ring 2, affecting aesthetics. This embodiment differs from existing technologies in that the abutment ring... The top end face of 2, which is the end face of the filling part 20 mentioned in the scheme, is provided with a concave surface 200. The highest point of the edge of the concave surface 200 is flush with the outer edge of the gingiva 4 of the jawbone hole. This structure allows the gap 5 between the bottom of the denture 6 and the inner wall of the concave surface 200 to be minimized when the denture 6 is installed on the top of the abutment collar 2. This allows the outer wall of the bottom of the denture 6 to be in close contact with the inner wall of the concave surface 200. Therefore, the denture 6 and the abutment collar 2 look more like a whole, eliminating the need for multiple adjustments to the shape of the temporary restoration and improving the efficiency of chairside operation.

[0028] Figures 1 to 5 As shown, in the technical solution of this embodiment, the outer diameter of the concave surface 200 is 4.0mm-6.0mm.

[0029] Understandably, the concave 200 with an outer diameter of 4.0mm-6.0mm meets the needs of most patients, thus eliminating the need for multiple adjustments to the shape of the temporary prosthesis.

[0030] Preferably, by collecting data from multiple batches of patients of similar age by clinical personnel, it is found that the outer diameter of the concave surface 200 is concentrated in three fixed specifications: 4.0mm, 5.0mm and 6.0mm. Therefore, the base collar 2 with these three specifications of concave surface 200 can be mass-produced.

[0031] Figures 1 to 5 As shown, in the technical solution of this embodiment, the height of the base collar 2 is 4.0mm-6.0mm, the outer diameter of the filling part 20 is 4.5mm-6.5mm, and the root square outer diameter of the base collar 2 is 3.5mm-4.5mm, so that the cross section of the base collar 2 is inverted conical.

[0032] Understandably, the optimal height of the abutment collar 2 is 4.0mm or 6.0mm. These two heights allow the top surface of the denture 6 to be relatively flush with the top surfaces of other teeth, reducing the difference between the denture 6 and other teeth and increasing aesthetics. The optimal outer diameter of the filling portion 20 is 4.5mm, 5.5mm, and 6.5mm, and the optimal apical outer diameter of the abutment collar 2 is 3.5mm and 4.5mm. These dimensions allow the abutment collar 2 to have an overall inverted conical structure, making it more suitable for the patient's oral cavity and increasing aesthetics.

[0033] like Figure 2 and Figure 4 As shown, in the technical solution of this embodiment, the sidewall of the filling part 20 is provided with an arc surface 201, and the arc surface 201 causes the soft tissue outside the jawbone hole to grow along the arc surface 201.

[0034] Understandably, once denture 6 is installed, the wound needs to be sutured first. Then, the soft tissue outside the jawbone hole will grow and heal naturally. The curved surface 201 can guide the growth direction of the soft component, making the wound heal more naturally and increasing the aesthetics.

[0035] like Figures 1 to 4As shown, in the technical solution of this embodiment, an installation part 10 is provided at the junction of the implant 1 and the abutment collar 2. The abutment collar 2 is embedded in the installation part 10. The bottom wall of the installation part 10 is provided with a downwardly extending first connecting groove 100, and the bottom of the concave surface 200 is provided with a second connecting groove 2000 communicating with the installation part 10.

[0036] Understandably, the dimensions of the mounting part 10 match the root dimensions of the abutment sleeve 2, which makes the position of the abutment sleeve 2 on the implant 1 more stable. The second connecting groove 2000 extends downward from the concave surface 200 and penetrates the entire abutment sleeve 2. The first connecting groove 100 extends downward from the bottom of the mounting part 10 without penetrating the implant 1. Furthermore, the diameter of the first connecting groove 100 is the same as the diameter of the second connecting groove 2000, which facilitates the installation of the structure used to connect the implant 1 and the abutment sleeve 2.

[0037] like Figures 1 to 4 As shown, in the technical solution of this embodiment, a connecting rod 3 is also included. The connecting rod 3 passes through the first connecting groove 100 and the second connecting groove 2000 to connect the implant 1 to the abutment collar 2.

[0038] Understandably, the abutment collar 2 is fixed to the implant 1 by the connecting rod 3.

[0039] like Figures 1 to 5 As shown, in the technical solution of this embodiment, the diameter of the connecting rod 3 is 2mm-2.5mm and the height is 4mm-6mm.

[0040] It is understood that in this embodiment, the optimal diameter of the connecting rod 3 is 2mm or 2.5mm, and the height is 4mm or 6mm.

[0041] like Figure 1 , Figure 3 and Figure 5 As shown, in the technical solution of this embodiment, the top of the connecting rod 3 is provided with a nut 30, the top of the nut 30 is flush with the bottom of the concave surface 200, and the nut 30 is provided with a cross-shaped screw hole 300. The screw hole 300 is used to disassemble the connecting rod to facilitate the connection of the denture 6 connecting part.

[0042] Understandably, having the top face of the nut 30 flush with the bottom of the concave surface 200 does not affect the overall shape of the concave surface 200, ensuring a smaller gap 5 between the concave surface 200 and the bottom of the denture 6. The screw hole 300 is used to connect with the connecting part of the denture 6, ensuring the stability of the denture 6 on the base collar 2.

[0043] like Figures 1 to 5As shown, in the technical solution of this embodiment, the outer diameter of the nut 30 is 3.4mm-4.4mm and the height is 2mm-4mm.

[0044] It is understandable that the optimal outer diameter of nut 30 is 3.4mm or 4.4mm, and the height is 2.0mm or 4.0mm. In order to ensure that nut 30 does not affect the size of concave surface 200, the size of nut 30 can be adjusted according to actual needs.

[0045] like Figure 1 As shown, in the technical solution of this embodiment, both the implant 1 and the abutment ring 2 are made of titanium alloy.

[0046] Understandably, titanium alloys possess excellent strength and toughness, making them less prone to breakage or deformation when subjected to chewing forces. Furthermore, titanium's low density reduces the weight of implant 1, minimizing potential discomfort for the patient during use. In addition, titanium and its alloys exhibit excellent corrosion resistance, remaining resistant even in humid and complex biological environments, ensuring the long-term lifespan of implant 1. They also possess good machinability and do not interfere with routine CT and MRI scans. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a particular embodiment, please refer to the relevant descriptions in other embodiments.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to 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 application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0052] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0053] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A combined implant abutment for maxillary central incisors, characterized in that, include: The abutment ring (2) is connected to the implant (1) at one end and has a filling part (20) at the other end. The end face of the filling part (20) has a concave surface (200). The highest point of the outer edge of the concave surface (200) is flush with the outer edge of the gingiva (4) of the jawbone hole. The inner wall of the concave surface (200) is in contact with the outer wall of the root of the denture (6).

2. The combined implant abutment for maxillary central incisors according to claim 1, characterized in that, The outer diameter of the concave surface (200) is 4.0mm-6.0mm.

3. The modular abutment for maxillary central incisors according to claim 1, characterized in that, The height of the base collar (2) is 4.0mm-6.0mm, the outer diameter of the filling part (20) is 4.5mm-6.5mm, the root square outer diameter of the base collar (2) is 3.5mm-4.5mm, and the inner diameter of the base collar (2) is 2.1mm-2.7mm, so that the cross section of the base collar (2) is an inverted cone shape.

4. The modular abutment for maxillary central incisors according to claim 3, characterized in that, The sidewall of the filling part (20) is provided with an arc surface (201), which allows soft tissue outside the jawbone hole to grow along the arc surface (201).

5. The modular abutment for maxillary central incisors according to claim 1, wherein, The implant (1) is provided with an installation part (10) at the junction with the abutment collar (2). The abutment collar (2) is embedded in the installation part (10). The bottom wall of the installation part (10) is provided with a first connecting groove (100) extending downward. The bottom of the concave surface (200) is provided with a second connecting groove (2000) communicating with the installation part (10).

6. A combined implant abutment for maxillary central incisors according to claim 5, characterized in that, It also includes a connecting rod (3), which passes through the first connecting groove (100) and the second connecting groove (2000) to connect the implant (1) to the abutment collar (2).

7. A combined implant abutment for maxillary central incisors according to claim 6, characterized in that, The diameter of the connecting rod (3) is 2mm-2.5mm and the height is 4mm-6mm.

8. A combined implant abutment for maxillary central incisors according to claim 7, characterized in that, The top of the connecting rod (3) is provided with a nut (30), the top of the nut (30) is flush with the bottom of the concave surface (200), the nut (30) is provided with a "+" shaped screw hole (300), the screw hole (300) can be used to disassemble the connecting rod (3) to facilitate the connection of the denture (6) connecting part.

9. A combined implant abutment for maxillary central incisors according to claim 8, characterized in that, The outer diameter of the nut (30) is 3.4mm-4.4mm and the height is 2mm-4mm.

10. A combined implant abutment for maxillary central incisors according to any one of claims 1-9, characterized in that, Both the implant (1) and the abutment ring (2) are made of titanium alloy.

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