Patent Application
20250025269
The present invention relates to a dental implant structure and a method of manufacturing the same, and more particularly, to a method of manufacturing an implant structure including a crown flowing in response to occlusal force capable of preventing an implant structure such as a fixture or an abutment and/or an abutment screw, which is provided at a lower portion of a crown, from being fractured due to repetitive occlusal force by installing an elastomer absorbing the occlusal force between the crown and the abutment, and an implant structure.
An implant is basically a fixture that is placed on an alveolar bone, an abutment that is fixed to the fixture and supports lateral or horizontal pressure in response to occlusal force applied during mastication, and a crown (artificial tooth) that restores an aesthetic beauty similar to a natural tooth by covering an upper portion of the abutment.
In general, a crown is manufactured in an optimized shape and size corresponding to a shape and size of the abutment, and then adhered to an upper surface of the abutment using an adhesive or the like. The crown is usually made of a hard material to mash food well during mastication. For example, as a material used for a crown, a dental metal or dental gold is cast and used, or the crown is manufactured by processing a zirconium oxide block through a CAD/CAM operation.
However, in the conventional implant structure, there is no component capable of absorbing the occlusal force like a periodontal ligament of natural teeth. For this reason, when the occlusal force is repeatedly applied to the crown, a problem may occur in that a fixture or an abutment and/or an abutment screw, etc., which are lower structures of the crown, may be repeatedly applied with the occlusal force and thus may be fractured.
Therefore, an object of the present invention provides a method of manufacturing an implant structure capable of preventing an implant structure such as a fixture or an abutment and/or an abutment screw, etc., which are lower structures of a crown, from being fractured due to repetitive occlusal force, and an implant structure.
In addition, another object of the present invention is to provide a method of manufacturing an implant structure capable of easily forming an elastomer that absorbs repetitive occlusal forces, and an implant structure.
In addition, the present invention is not limited to the above-described purpose, and various objects may be additionally provided through technologies described through embodiments and claims to be described later.
According to an aspect of the present disclosure, a method of manufacturing an implant structure including a crown flowing in response to occlusal force includes: placing a fixture in an alveolar bone; fastening and fixing an abutment to the fixture; manufacturing the crown; applying an elastomer base to an outer surface of the abutment or an inner side surface of the crown; and curing the elastomer base to form the elastomer; and fixing the crown to cover an upper surface of the elastomer.
In the manufacturing of the crown, the crown may be manufactured so that a space in which the elastomer is accommodated is formed on an inner side surface of the crown.
The space may be formed to have so that a depth is equal to or smaller than a thickness of the elastomer.
An opening through which the upper portion of the abutment is exposed may be formed in the crown, and the opening may be provided with a coupling groove for bonding strength with a resin filled and embedded through a subsequent process.
The elastomer base may be made of a synthetic resin material, a synthetic rubber material, or a silicone material in the liquid or gel form.
In the fixing of the crown to cover the upper surface of the elastomer, the crown may be adhered and fixed to the elastomer using an adhesive, or the abutment may be fastened and fixed to the abutment through the abutment cap screwed to the upper portion.
According to another aspect of the present disclosure, there is provided an implant structure manufactured through the method of manufacturing an implant structure including the crown that flows in response to the occlusal force.
As described above, according to the present invention, an elastomer base in a liquid or gel form is applied to an inner side surface of a crown and a surface of an abutment and then cured to form an elastomer having elasticity between the crown and the abutment, so it is possible to prevent a fixture or an abutment and/or an abutment screw from being fractured due to repetitive occlusal force.
Therefore, according to the present invention, an elastomer absorbs applied occlusal force while flowing in a direction in which the occlusal force is applied, so it is possible to prevent a fixture or an abutment and/or an abutment screw, which are a lower structures of a crown, from being fractured due to occlusal force repetitively applied to the fixture or the abutment and/or the abutment screw.
Various advantages and features of the present invention and methods accomplishing them will become apparent from the following description of embodiments with reference to the accompanying drawings. Also, like reference numerals designate like elements throughout this specification. In addition, each component illustrated in each figure may be excessively illustrated in size and shape, which is for convenience of description and is not intended to be limited. In addition, when described as “A and/or B,” it may mean both A and B, or either A or B.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to
Subsequently, as illustrated in
In
Then, as illustrated in
In the conventional implant structure in which the elastomer 5a is not installed, an inner area of the crown may extend to the space 4a and a hatched area ‘A’ as illustrated in
For example, in the same abutment structure, the space 4a and the hatched area ‘A’, which are areas reduced compared to the conventional implant structure, may be changed according to the shape and size of the elastomer 5a. When the elastomer 5a having the structure illustrated in
Subsequently, as illustrated in
For example, when applying the elastomer base 5 to the surface of the abutment 2, as illustrated in
Meanwhile, the shape and size (upper and lower length) of the elastomer base 5 may vary depending on whether 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 elastomer base 5 may be applied only to an outer surface of the abutment 2.
Subsequently, as illustrated in
Subsequently, as illustrated in
When the crown 4 is fastened and fixed to the abutment 2 using the abutment cap 6, the elastomer 5a may 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 portion of the abutment 2. In addition, as illustrated in
Referring to
Other components are the same as those of the embodiments illustrated in
An elastomer 5a′ is formed by being applied to an inner side surface of the crown 4′ and cured. The crown 4′ is attached and fixed to an outer surface of the abutment 2′ using an adhesive while the elastomer 5a′ is attached.
Meanwhile, the opening of the crown 4′ is later filled and embedded with a resin to complete an artificial tooth, and a coupling groove 4a′ may be formed on the inner side surface for bonding strength with the resin to be filled and embedded. In this case, the coupling groove 4a′ may be formed in a band shape along an inner side surface of the crown 4′.
Hereinabove, the technical idea of the present invention has been specifically described in the embodiments, but is not limited to the embodiments and may be embodied in a variety of different forms, and is provided to fully inform those skilled in the art of the scope of the invention to which the present invention belongs, and the present invention is defined by the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2022-0035206 | Mar 2022 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2023/002633 | 2/24/2023 | WO |
