WO2023277254A1

WO2023277254A1 - Round bar, for processing abutment, having inclined hollow

Info

Publication number: WO2023277254A1
Application number: PCT/KR2021/014082
Authority: WO
Inventors: 김진호
Original assignee: 김진호
Priority date: 2021-06-29
Filing date: 2021-10-13
Publication date: 2023-01-05
Also published as: KR102352389B1

Abstract

The present invention relates to a round bar, for processing an abutment, having an inclined hollow. More specifically, the present invention relates to a round bar for an abutment processed such that an artificial tooth can be coupled thereto, the round bar comprising: a molded body to which the artificial tooth is coupled and which has a hollow penetrating part formed therein; a fixed head provided above the molded body; and a coupling protrusion which is provided below the molded body and has a hollow connection hole so as to be in communication with the penetrating part. Accordingly, an oblique inclination guide hole is formed such that a fixing screw is guided inside the round bar forming the abutment and an end of the inclination guide hole is disposed on the rear surface of the abutment, such that a hole is formed on the rear surface of the artificial tooth so as to be connected to the inclination guide hole, and thus, a hole portion of a finished artificial tooth is not exposed to the outside so as to improve an aesthetic effect, and the adhesion and bonding strength between the abutment and the artificial tooth can be effectively increased.

Description

Round bar for abutment processing with an inclined hollow

The present invention relates to a round rod for processing an abutment having an inclined hollow, and more particularly, by forming an oblique inclined guide hole so that a fixing screw is guided inside the round rod forming the abutment, By arranging the end of the inclined guide hole in the inclined guide hole, a hole is formed on the back surface of the artificial tooth to be connected to the inclined guide hole, so that the finished hole part of the artificial tooth is not exposed to the outside, improving aesthetics. It relates to a round bar for processing an abutment having an inclined hollow that can effectively increase the adhesion and bonding strength between a ment and an artificial tooth.

In general, an implant refers to a substitute that restores lost human tissue. In dentistry, when a tooth is lost, an implant is placed at the location where the tooth root is missing to replace the tooth root, and after bonding, artificial teeth are fixed to fix the original function of the tooth. means a substitute that restores

When such a dental implant is inserted into the alveolar bone of the removed natural root position and adhered to the implant, an abutment connected to the crown is assembled to the fixture placed in the alveolar bone, and an artificial abutment is attached to the abutment. It is widely performed by placing a crown in place of the tooth. Depending on the method of fixing the artificial tooth, there are screw fastening method (SCRP) and cement method. While securing it, it facilitates the attachment and detachment of the crown, which is an artificial tooth, and is widely used.

For example, looking at Korean Patent Registration No. 10-1445298, an implant fixture implanted in the alveolar bone, an abutment fixed by a screw fastened to the implant fixture, and an outer surface of the abutment covered Ji is applied to an abutment for implant having an upper prosthesis, and a screw hole formed inside the upper prosthesis so that the abutment and the upper prosthesis are fastened by mutual screwing, and the outer surface of the abutment. In the implant abutment provided with a screw thread formed to correspond to the screw hole; When the upper prosthesis is screwed to the abutment, the upper prosthesis is provided with a concave formed symmetrically left and right at a predetermined position on the upper surface of the abutment and a protrusion formed on the bottom surface of the upper prosthesis corresponding to the concave, An abutment for implantation is proposed in which the inner and outer surfaces of the upper prosthesis maintain the same direction as those of adjacent teeth due to the mutual concavo-convex coupling of the groove and the protrusion.

However, in the abutment applied to conventional implants, the hollow hole formed to fasten the screw is formed vertically along the longitudinal direction of the abutment, and the front part is inclined in the process of processing the abutment. The top of the hole is exposed in a cut-out form. At this time, since a hole must be formed on the front surface of the artificial tooth to be connected to the hole of the abutment for the movement of the screw, there is a problem in that the hole of the artificial tooth is exposed even after finishing treatment, thereby impairing aesthetics.

In addition, the contact area with the artificial tooth is reduced by the slit-structured hole formed on the front surface of the abutment during the processing process, so that adhesion and bonding strength are reduced.

The foregoing invention refers to the background art in the technical field to which the present invention belongs, and does not mean the prior art.

The present invention has been made to solve the above conventional problems, and an object of the present invention is to form an oblique inclined guide hole so that a fixing screw is guided inside a round bar forming an abutment, By disposing the end of the inclined guide hole on the rear surface, a hole is formed on the rear surface of the artificial tooth to be connected to the inclined guide hole, so that the finished hole portion of the artificial tooth is not exposed to the outside, improving aesthetics. Its purpose is to provide a round rod for processing an abutment having a slanted hollow that can effectively increase the adhesion and bonding force between a butment and an artificial tooth.

The present invention relates to a round bar for an abutment processed to fasten an artificial tooth, comprising: a molding body to which the artificial tooth is fastened and having a hollow through part formed therein; a fixing head provided on the upper part of the molding body; It is provided on the lower part of the main body and is characterized in that it consists of a fastening protrusion formed with a hollow connection hole to communicate with the through part.

In addition, the through part is formed to communicate with an extension hole formed in the molding body to communicate with the connection hole, a vertical expansion hole formed to communicate with the connection hole, and a lower end of the vertical expansion hole to be in communication with each other and inclined outward toward the upper end. It is characterized by consisting of an inclined guide hole formed.

In addition, the connection hole is formed to have the same diameter as the extension hole, and the vertical extension hole is formed to have the same diameter as the inclined guide hole, and the vertical extension hole and the inclined guide hole have a diameter greater than that of the extension hole. It is characterized by large formation.

In addition, the inclined guide hole is characterized in that the lower end is formed to communicate with the upper portion of the vertical expansion hole, and the upper end is formed on the outer surface of the molding body.

In addition, a tapered guide surface is further formed at an upper portion of the extension hole, so that a fixing screw inserted into the vertical extension hole is guided and moved to the connection hole.

In addition, the inclined guide hole is formed in a curved shape to prevent the fixing screw guided in the inclined guide hole from being caught or rubbed.

The round bar for processing an abutment having an inclined hollow according to the present invention forms an oblique inclined guide hole so that a fixing screw is guided inside the round bar forming the abutment, so that the end of the inclined guide hole is disposed on the rear surface of the abutment. By doing this, a hole is formed on the back of the artificial tooth to be connected to the inclined guide hole, so that the hole part of the artificial tooth that has been finished is not exposed to the outside, so that aesthetics can be improved, and the adhesion and bonding force of the abutment and artificial tooth are improved. It has the effect of being able to increase effectively.

1 to 3 are photographs showing a conventional round bar.

Figure 4 is a perspective view showing a round bar for abutment processing having an inclined hollow according to the present invention.

5 is a front view showing a round rod for abutment processing having an inclined hollow according to the present invention.

6 is a cross-sectional view showing a round rod for abutment processing having an inclined hollow according to the present invention.

7 is a cross-sectional view showing the processing dimensions of each supplier of a round bar for processing an abutment having an inclined hollow according to the present invention.

Figure 8 is a side picture showing a state of use of the round bar for abutment processing having an inclined hollow according to the present invention.

9 is a perspective picture showing a state of use of a round bar for abutment processing having an inclined hollow according to the present invention.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea.

On the other hand, the meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to an embodied feature, number, step, operation, component, part, or these. It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (eg, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step clearly follows a specific order in context. Unless otherwise specified, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

1 to 3 are photographs showing a conventional round bar. Figure 4 is a perspective view showing a round bar for abutment processing having an inclined hollow according to the present invention. 5 is a front view showing a round rod for abutment processing having an inclined hollow according to the present invention. 6 is a cross-sectional view showing a round rod for abutment processing having an inclined hollow according to the present invention. 7 is a cross-sectional view showing the processing dimensions of each supplier of a round bar for processing an abutment having an inclined hollow according to the present invention. Figure 8 is a side picture showing a state of use of the round bar for abutment processing having an inclined hollow according to the present invention. 9 is a perspective picture showing a state of use of a round bar for abutment processing having an inclined hollow according to the present invention.

As shown in the drawing, the round bar 10 for processing an abutment having an inclined hollow according to the present invention (hereinafter referred to as a round bar for processing an abutment having an inclined hollow for convenience of description) is to be fastened with an artificial tooth 100. A round bar 10 for an abutment that is processed to be connected to the fixture 200, and thus the round bar 10 for an abutment has a molding body 20, a fixing head 30, and a fastening protrusion 40 made up of

The molding body 20 is fastened to the artificial tooth 100 and has a hollow through portion 21 formed therein.

The molding body 20 is formed in a circular shaft shape, and the material is made of a metal material.

The molding body 20 is processed and molded into a predetermined shape so that the artificial teeth 100 are fitted thereon. The above-described molding body 20 may be formed in a shaft structure of various shapes such as a square or polygonal shape in addition to a circular shaft shape.

The through part 21 communicates with the extension hole 211 formed in the center of the bottom surface of the molding body 20 to communicate with the connection hole 41 and the molding body 20 to communicate with the connection hole 41. It consists of a vertical expansion hole 212 formed inside and a slope guide hole 213 formed so that the lower end communicates with the vertical expansion hole 212 and is inclined outward toward the upper end.

At this time, the connection hole 41 is formed to have the same diameter as the extension hole 211, and the vertical expansion hole 212 is formed to have the same diameter as the inclined guide hole 213, and the vertical expansion hole 212 and the inclined guide hole 213 are formed to have a larger diameter than the extension hole 211 .

The diameter of the vertical expansion hole 212 is formed larger than the diameter of the extension hole 211 so that a locking jaw is formed inside the molding body 20, so that the fixture is fitted into the molding body 20. The head of the fixing screw fastened to (200) is guided through the inclined guide hole 213 and the vertical extension hole 212, and then caught and fixed by the locking jaw.

In addition, the vertical expansion hole 212 is formed to have the same diameter as the inclined guide hole 213, so that the fixing screw can be guided to the inclined guide hole 213 and moved to the vertical expansion hole 212. do. At this time. It is also possible to prevent the fixing screw from being caught while moving by forming the diameter of the inclined guide hole 213 larger than that of the vertical expansion hole 212 .

The extension hole 211, the vertical extension hole 212, and the inclined guide hole 213 are formed in a circular hole structure.

The inclined guide hole 213 is formed so that its lower end communicates with the upper part of the vertical expansion hole 212 and its upper end is formed on the outer surface of the molding body 20 .

That is, when the vertical hole 310 is formed in an extended form (conventional method) of the vertical expansion hole 212 inside the conventional molding body 300 without the inclined guide hole 213 as shown in FIG. In the process of processing the molding body 300 to form a curved or inclined front part, the upper part of the vertical hole 310 is exposed to the front part in a cutout form as shown in FIG. 1, and the movement of the fixing screw Finishing the hole 120 of the artificial tooth 100 because it is necessary to form a hole 120 in the front part 110 of the artificial tooth 100 to communicate with the vertical hole 310 of the abutment, which is a round bar processed for Even if it is processed, there is a problem that the finished part is exposed during the conversation process, which spoils the aesthetic sense, and it is difficult to apply the SCRP method among the implant treatment methods.

In addition, the contact area with the artificial tooth 100 is reduced by the vertical hole 310 of the slit structure formed in the front part of the abutment during the processing process, so that the adhesion and bonding force are reduced.

On the other hand, in the present invention, by forming an inclined guide hole 213 in communication with the vertical expansion hole 212 and forming an end of the inclined guide hole 213 on the outer surface of the molding body 20, the molding body In the process of processing (20), the end of the inclined guide hole 213 can be placed on the rear surface portion 215, so that the hole 120 is in communication with the inclined guide hole 213 in the rear surface portion 130 of the artificial tooth 100. ) is formed to finish the hole of the artificial tooth 100, it is not exposed in the conversation process, so it has an aesthetic sense. The front part 214 of the molding body 20 is formed in a curved oblique shape.

Here, the inclined guide hole 213 is formed in a curved shape, so that the fixing screw guided to the inclined guide hole 213 can be prevented from being caught or rubbed.

That is, while the fixing screw is moved through the inclined guide hole 213 and the lower portion passes through the extension hole 211 and the connection hole 41, the head of the fixing screw moves through the curved inclined guide hole. 213, it is possible to reduce friction or being caught on the inner surface of the inclined guide hole 213 compared to the inclined guide hole 213 inclined in a straight line.

The inclined guide hole 213 is formed in a straight line and then curved using a drill to reduce the load on the drill, and it is also possible to form the inclined guide hole 213 curved in the process of forming the first inclined guide hole 213.

A tapered guide surface 211a is further formed at an upper portion of the extension hole 211 so that a fixing screw inserted into the vertical extension hole 212 is guided and moved to the connection hole 41 .

The tapered guide surface 211a is inclined in an oblique direction to prevent the end of the fixing screw from being caught in the moving process.

The inclination angle of the tapered guide surface 211a may be variably changed depending on the diameter of the extension hole 211, the diameter of the fixing screw, or the material of the abutment.

The fixing head 30 is integrally provided on the upper part of the molding body 20 .

The fixing head 30 is integrally formed on the upper part of the molding body 20 and has an annular fastening groove formed on the lower part, so that it is fastened and fixed to a jig of a molding processing device.

The fixing head 30 is separated after processing the molding body 20 with the molding processing device. The fixing head 30 is formed in a circular protrusion structure.

The fastening protrusion 40 is provided below the molding body 20, and a hollow connection hole 41 is formed to communicate with the through part 21.

The fastening protrusion 40 is integrally formed on the lower part of the molding body 20, and is formed in a conical shape so that the outer diameter gradually decreases as it goes downward.

The fastening protrusion 40 is inserted into the fastening groove of the fixture 200, and the fixing screw passes through the connection hole 41 of the fastening protrusion 40 and is fastened to and fixed to the fixture 200.

Although the present invention has been described in detail so far, it is clear that the embodiments mentioned in the process are only illustrative and not limiting, and the present invention is the technical spirit or field of the present invention provided by the claims below. Within the range that does not deviate from, it will be said that component changes to the extent that can be equally coped with fall within the scope of the present invention.

10: round bar for processing

20: molding body

21: Penetration

211: extension hole

211a: taper guide surface

212: vertical expansion hole

213: inclined guide hole

214: front part

215: rear part

30: fixed head

40: fastening protrusion

41: connection hole

100: artificial tooth

110: front part

120: hall

130: rear part

200: fixture

300: round bar

310: vertical hole

Claims

As a round bar for an abutment processed to allow artificial teeth to be fastened,

a molding body in which the artificial tooth is fastened and a hollow through-portion is formed therein;

a fixing head provided on top of the molding body; and

A round bar for processing an abutment having an inclined hollow, characterized in that it is provided at the bottom of the molding body and consists of a fastening protrusion formed with a hollow connection hole to communicate with the through portion.
According to claim 1,

An extension hole formed in the molding body so that the through portion communicates with the connection hole;

A vertical expansion hole formed to communicate with the connection hole;

A round bar for processing an abutment having an inclined hollow, characterized in that it consists of an inclined guide hole formed so that the lower end communicates with the vertical expansion hole and is inclined outward toward the upper end.
According to claim 2,

The connection hole is formed to have the same diameter as the extension hole,

The vertical expansion hole is formed to have the same diameter as the inclined guide hole, and the vertical expansion hole and the inclined guide hole have a larger diameter than the extension hole. .
According to claim 2,

The inclined guide hole is a round rod for processing an abutment having an inclined hollow, characterized in that the lower end is formed to communicate with the upper part of the vertical expansion hole, and the upper end is formed on the outer surface of the molding body.
According to claim 2,

A round bar for processing an abutment having an inclined hollow, characterized in that a tapered guide surface is further formed at an upper portion of the extension hole, so that the fixing screw inserted into the vertical extension hole is guided and moved to the connection hole.
According to claim 4,

The inclined guide hole is formed in a curved shape to prevent the fixing screw guided in the inclined guide hole from being caught or rubbed.