Method for manufacturing an implant structure including a crown that flows in response to bite force and an implant structure

Abstract

The present invention relates to a dental implant structure and a manufacturing method thereof, and more particularly to an implant structure including a crown that flows in response to occlusal force, which can prevent implant structures such as fixtures, abutments and / or abutment screws installed under the crown from being fractured due to repeated occlusal forces by installing an elastic body that absorbs occlusal forces between the crown and an abutment.

Description

[Technical field]

[0001] The present invention relates to a dental implant structure and a manufacturing method thereof, and more particularly to an implant structure including a crown that flows in response to occlusal force, which can prevent implant structures such as fixtures, abutments and / or abutment screws installed under the crown from being fractured due to repeated occlusal forces by installing an elastic body that absorbs occlusal forces between the crown and an abutment. [Background technology]

[0002] An implant basically comprises a fixture that is implanted into the alveolar bone, an abutment that is fixed to the fixture and supports lateral or horizontal pressure in response to the biting force applied during chewing, and a crown (artificial tooth) that covers the top of the abutment to restore the aesthetic beauty of a natural tooth.

[0003] Generally, a crown is made in an optimized shape and size according to the shape and size of the abutment, and then attached to the top of the abutment using adhesives. Crowns are usually made of hard materials to knead food and drink well during chewing. For example, dental metal or dental gold is cast as a material for a crown, or a zirconium oxide block is machined through CAD / CAM to make a crown.

[0004] However, conventional implant structures do not have components that can absorb occlusal forces like the periodontal ligament of natural teeth. Therefore, when occlusal forces are repeatedly applied to the crown, the fixture, abutment, and / or abutment screw, which are the substructures of the crown, may be subjected to repeated strong occlusal forces and may break. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Republic of Korea Registered Patent Publication No. 10-2304199 (2021.09.14) [Patent Document 1] Republic of Korea Registered Patent Publication No. 10-2304797 (2021.09.15) [Patent Document 1] Republic of Korea Patent Registration No. 10-2132353 (2020.07.03) [Patent Document 1] Republic of Korea Patent Registration No. 10-1924802 (2018.11.28) Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, an object of the present invention is to provide an implant structure manufacturing method and an implant structure that can prevent implant structures such as fixtures, abutments and / or abutment screws, which are substructures of a crown, from being fractured due to repetitive biting forces.

[0007] Another object of the present invention is to provide a method for producing an implant structure, which can easily form an elastic body that absorbs repetitive bite forces, and an implant structure.

[0008] Furthermore, the present invention is not limited to the above-mentioned objects, and various other objects may be additionally provided through the techniques described in the following embodiments and claims. [Means for solving the problem]

[0009] In one embodiment to achieve the above-mentioned object, the present invention provides a method for manufacturing an implant structure including a crown that flows in response to biting force, the method including the steps of: implanting a fixture into an alveolar bone; fastening an abutment to the fixture; fabricating a crown; applying an elastic base to the outer surface of the abutment or the inner surface of the crown; hardening the elastic base to form an elastic body; and fixing the crown to cover an upper surface of the elastic body.

[0010] In addition, the process of fastening the abutment to the fixture may be performed by fastening the abutment to the fixture using a screw formed integrally with the abutment, or by fastening the abutment to the fixture using an abutment screw separate from the abutment.

[0011] In addition, in the process of manufacturing the crown, the crown may be manufactured so that a space for receiving the elastic body is formed on an inner side surface of the crown.

[0012] Also, the space may be formed to have a depth equal to or smaller than the thickness of the elastic body.

[0013] In addition, the crown has an opening through which the upper portion of the abutment is exposed, and a bonding groove may be formed in the opening for bonding with a resin that will be filled in a subsequent process.

[0014] Also, the elastic base may be made of synthetic resin, synthetic rubber, or silicone in liquid or gel form.

[0015] In addition, in the process of fixing the crown to cover the upper surface of the elastic body, the crown can be adhered and fixed to the elastic body using an adhesive, or the crown can be fastened to the abutment through an abutment cap that is screwed onto the top of the abutment.

[0016] In another embodiment of the present invention to achieve the above object, there is provided an implant structure manufactured by the method for manufacturing an implant structure including a crown that flows in response to an occlusal force. Effect of the Invention

[0017] As described above, according to the present invention, a liquid or gel-form elastic base is applied to the inner surface of the crown and the surface of the abutment, and then hardened to form an elastic material between the crown and the abutment, thereby preventing the fixture, abutment, and / or abutment screw from fracturing due to repeated biting forces.

[0018] Therefore, in the present invention, the elastic material flows in the direction in which the occlusal force is applied, absorbing the applied occlusal force, thereby preventing fracture due to repeated occlusal forces on the fixture, abutment and / or abutment screw, which are the substructures of the crown. [Brief description of the drawings]

[0019] [Figure 1] 1 is a flowchart of a method for manufacturing an implant structure according to an embodiment of the present invention. [Diagram 2] 2 is a diagram showing the steps shown in FIG. 1. [Diagram 3] 2 is a diagram showing the steps shown in FIG. 1. [Figure 4] 2 is a diagram showing the steps shown in FIG. 1. [Diagram 5] 2 is a diagram showing the steps shown in FIG. 1. [Figure 6] 2 is a diagram showing the steps shown in FIG. 1. [Figure 7] 11 is a view showing a method for manufacturing an implant structure according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The advantages and features of the present invention and the methods of achieving them will become clearer with reference to the following embodiments described in detail with the accompanying drawings. In addition, the same reference numerals refer to the same components throughout the specification. In addition, the size and shape of each component illustrated in each drawing may be exaggerated for the convenience of explanation and are not intended to be limiting. In addition, when it is described as "A and / or B", it may mean both A and B, or it may mean either A or B.

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] Fig. 1 is a flow chart showing a method for manufacturing an implant structure according to an embodiment of the present invention, and Figs. 2 to 6 are diagrams illustrating steps of the manufacturing method shown in Fig. 1. For ease of explanation, a two-piece implant structure in which an abutment is fastened to a fixture through an abutment screw will be described as an example.

[0023] Referring to FIG. 1, a fixture 1 is implanted into the alveolar bone (S1).

[0024] 1 and 2, the abutment 2 is fastened and fixed to the fixture 1 implanted in the alveolar bone (S2). At this time, the abutment 2 is fastened and fixed with an abutment screw 3.

[0025] In FIG. 2, the abutment 2 is fastened to the fixture 1 by an abutment screw 3, but this is just one example. In the case of a one-piece structure in which the abutment screw is integrally formed with the abutment, the abutment may be fastened directly to the fixture.

[0026] 1 and 3, the crown 4 is manufactured (S3). At this time, taking into consideration the shape and size of the elastic body (5a, see FIG. 5) that will be formed between the crown 4 and the abutment 2 when the crown 4 is manufactured, a space 4a in which the elastic body 5a will be formed is formed in advance on the inner side of the crown 4.

[0027] In a conventional implant structure in which the elastic body 5a is not installed, the inner region of the crown may be expanded to the space 4a and the shaded area 'A' as shown in Fig. 3(a). However, in the embodiment of the present invention, taking into consideration the elastic body 5a installed between the crown 4 and the abutment 2, the inner region may have an area reduced by the space 4a and the shaded area 'A'.

[0028] For example, with the same abutment structure, the space 4a and the shaded area 'A', which are areas that are reduced compared to conventional implant structures, can be changed depending on the shape and size of the elastic body 5a. When the elastic body 5a having the structure as shown in Fig. 5 is installed, the space 4a has a shape corresponding to the shape of the elastic body 5a as shown in Fig. 3(b), and at this time, the depth d of the space 4a can be formed to be the same as or slightly smaller than the thickness t of the elastic body 5a.

[0029] 1 and 4, an elastic body base 5 for forming an elastic body is applied to the space 4a formed on the surface of the abutment 2 (see FIG. 4(a)) or the inner surface of the crown 4 (see FIG. 4(b)) (S4). At this time, the elastic body base 5 may be made of a liquid or gel-type synthetic resin material, synthetic rubber material, or silicone material, and is applied to the surface of the abutment 2 or the inner surface of the crown 4 like toothpaste or joint material to fill the space 4a.

[0030] For example, when applying the elastic base 5 to the surface of the abutment 2, the elastic base 5 is applied in a state in which the abutment cap 6 is fastened and fixed to the abutment 2, as shown in (a) of Figure 4. In other words, the elastic base 5 is applied to the side surfaces of the abutment 2 and the abutment cap 6.

[0031] Meanwhile, the shape and size (vertical length) of the elastic base 5 may vary depending on whether or not the abutment cap 6 is used. For example, when the crown 4 is attached to the abutment 2 using an adhesive (when the abutment cap 6 is not used), the elastic base 5 may be applied only to the outer surface of the abutment 2.

[0032] 1 and 5, the elastic body base 5 applied to the surface of the abutment 2 or the inner surface of the crown 4 is cured to form an elastic body 5a having elasticity (S5).

[0033] Next, the manufactured crown 4 is placed so as to cover the elastic body 5a as shown in Figures 1 and 6 (S6). At this time, the crown 4 can be attached to the elastic body 5a using an adhesive or the like as shown in Figure 6(a), and then fastened and fixed using an abutment cap 6 as shown in Figure 6(b). Also, the crown 4 can be placed on the top of the elastic body 5a as shown in Figure 6(a), and then fastened and fixed using an abutment cap 6 as shown in Figure 6(b).

[0034] When the crown 4 is fastened to the abutment 2 using the abutment cap 6, the elastic body 5a may also be formed between the head of the abutment cap 6 and the crown 4 and / or between the head of the abutment cap 6 and the upper part of the abutment 2. Also, the abutment cap 6 is screwed into a groove formed on the inside of the upper part of the abutment 2, as shown in Fig. 6(b).

[0035] FIG. 7 is a diagram showing a method for manufacturing an implant structure according to another embodiment of the present invention.

[0036] Referring to FIG. 7, in a method for manufacturing an implant structure according to another embodiment of the present invention, a crown 4' is attached and fixed to an abutment 2' without using an abutment cap.

[0037] The other configurations are the same as those of the embodiment shown in FIGS.

[0038] The elastic body 5a' is applied to the inner surface of the crown 4' and then cured to form the crown 4'. With the elastic body 5a' attached, the crown 4' is attached and fixed to the outer surface of the abutment 2' with an adhesive.

[0039] Meanwhile, the opening of the crown 4' is later filled with resin or the like to complete the artificial tooth, and a bonding groove 4a' may be formed on the inner surface for bonding with the resin to be filled in. At this time, the bonding groove 4a' may be formed in a strip shape along the inner surface of the crown 4'.

[0040] As described above, the technical ideas of the present invention have been specifically described in the embodiments, but they are not limited to the embodiments and may be embodied in various different forms. These are provided to fully inform those skilled in the art of the invention of the scope of the invention, and the present invention is defined by the scope of the claims.

Claims

1. The process of making a crown; applying an elastic base to the outer surface of the abutment fastened to the fixture or to the inner surface of the crown; curing the elastomer base to form an elastomer; and securing said crown to said abutment; In the process of fixing the crown to the abutment, A method for manufacturing an implant structure including a crown that flows in response to occlusal force, wherein the crown is adhered and fixed to the outer surface of the abutment using an adhesive, or the crown is fastened and fixed to the abutment through an abutment cap that is screwed onto the top of the abutment.

2. The process of fastening the abutment to the fixture includes: The method for manufacturing an implant structure including a crown that flows in response to biting force as described in claim 1, wherein the abutment is fastened to the fixture using a screw formed integrally with the abutment, or the abutment is fastened to the fixture using an abutment screw separate from the abutment.

3. In the process of manufacturing the crown, 2. The method for manufacturing an implant structure including a crown that flows in response to a bite force according to claim 1, wherein the crown is manufactured so that a space for accommodating the elastic body is formed on an inner surface of the crown.

4. 4. The method for manufacturing an implant structure including a crown that flows in response to bite force according to claim 3, wherein the space is formed so that its depth is equal to or smaller than the thickness of the elastic body.

5. 2. The method for manufacturing an implant structure including a crown that flows in response to occlusal force as described in claim 1, wherein the crown has an opening through which an upper portion of the abutment is exposed, and a bonding groove is formed in the opening for bonding with a resin that is filled and filled in a subsequent process.

6. 2. The method for manufacturing an implant structure including a crown that flows in response to occlusal force according to claim 1, wherein the elastic base is made of a synthetic resin material, a synthetic rubber material, or a silicone material in a liquid or gel form.

7. An implant structure manufactured through the method for manufacturing an implant structure including a crown that flows in response to occlusal force according to any one of claims 1 to 6.

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