KR20210028873A - A dental implant - Google Patents

Abstract

The present invention relates to a dental implant, which divides an abutment into an upper and a lower part so that it can be combined or separated to facilitate the operation, and to connect the abutment separated by the upper part with the crown in an adhesive state. Thus, it is possible to prevent the adhesive bonding agent bonding the crown from penetrating into the gums. The present invention relates to an implant comprising a fixture to be placed in alveolar bone, an abutment provided on the fixture, and a screw inserted into the abutment and coupled to the fixture, wherein the abutment is provided on the fixture a first abutment having a coupling hole formed therein and alternately formed with first protrusions and first grooves along the periphery of the upper surface; a second abutment that is provided on the first abutment, has a coupling hole therein, and is alternately formed with second protrusions and second grooves along the periphery of the lower surface to engage the first protrusions and the first grooves; and a connection bolt coupled to or separated from the coupling hole of the second abutment and the first abutment to fix or separate the second abutment.

Description

Implant {A dental implant}

The present invention relates to an implant, which facilitates the procedure by allowing an abutment to be easily bonded or separated, and an adhesive bonding agent obtained by bonding the crown to the gums so that the abutment can be bonded to the crown and then connected. It is a technology related to implants that can prevent penetration and prevent loosening of the implant and minimize damage to the gums.

A dental implant is an artificial tooth that is placed in the gum bone to replace an extracted tooth.

In order to perform an implant, there are largely a screw method and an adhesion method by bonding.

First, the screw method is to make a metal porcelain crown on the upper part of the fixture and fasten it with a screw. There is discomfort that causes pain and wounds in the gums during the procedure of inserting and removing the prosthesis several times in order to accurately establish the contact relationship and occlusal relationship with both teeth in the oral cavity, and when using an implant, a problem occurs at the contact point or occlusion problem occurs. In the case of repair, in the process of removing the crown, a wound or inflammation is caused to the gums, resulting in a number of periodontal problems.

Second, there is an adhesive method by bonding. The bonding method by bonding is basically composed of a fixture, an abutment, and a crown. Here, the fixture is formed in a screw shape with a structure corresponding to the root of a natural tooth and is placed in the gum bone. And the abutment is the pillar that connects the fixture and the crown. In addition, the crown corresponds to an artificial tooth, and is a part where food comes into contact, and is aesthetically shaped like a tooth. In the implantation method by bonding, a fixture is placed on the patient's gums, and an adhesive bonding agent is applied to the crown while the abutment is bonded to the abutment.

However, this method causes periodontal problems by extruding the adhesive bonding agent applied in the process of inserting the crown on the upper part of the abutment and pushing it into the gap between the abutment and the crown and penetrating into the gum to injure the gum. There is a problem that can even cause bone loss.

In addition, in the bonding method, the implant must be removed by striking the fixed part with a rejector in the state of the gums after once placed, or if the implant needs to be loosened or repaired, causing pain and shock to the patient and causing damage to the gums. There is a problem.

KR20-2019-0000172 U "A fastening device having a retractable structure and a dental implant including the same"

In order to solve the above problems, the present invention makes it possible to easily couple or separate the abutment so that the implant can be easily repaired, and it is possible to prevent loosening by minimizing shaking, and bonding the crown and the abutment during implant treatment. The purpose is to provide an implant that can protect the gums from adhesive bonding agents.

In order to solve the above problems, the present invention provides an implant comprising a fixture placed in the alveolar bone, an abutment provided on the fixture, and a screw inserted into the abutment and coupled to the fixture, the abutment The fixture may include: a first abutment provided on the fixture, having a coupling hole therein, and alternately forming first protrusions and first grooves along the circumference of the upper surface; A second abutment provided on the first abutment and having a coupling hole therein, and alternately forming a second protrusion and a second groove along the circumference of the lower surface to engage the first protrusion and the first groove Ment; And a connection bolt that is coupled to or separated from a coupling hole of the second abutment and the first abutment to fix or separate the second abutment.

Here, a spiral is formed inside the first protrusion and the second protrusion so that the connection bolt is fastened.

In order to solve the above problems, the present invention is composed of a fixture installed in the alveolar bone, an abutment provided on the fixture, a screw connecting the fixture and the abutment, and a crown provided on the abutment. In the implant, the abutment has second protrusions and second grooves alternately formed along the circumference of the lower surface, and the fixture has a second protrusion along the circumference of the upper surface corresponding to the first protrusion and the first groove. It is characterized in that the protrusions and the second grooves are formed alternately to engage with each other.

Here, in the inside of the first protrusion and the second protrusion, a spiral is formed so as to be fastened with the screw.

According to the above solution, the following effects can be expected.

First, according to the present invention, the abutment is formed in a structure that can be separated up and down, so that the crown is easily separated.

In addition, the abutment is coupled up and down by a connecting bolt to improve the bonding force, and since the connecting bolt is on the top of the screw fixing the fixture, it is possible to prevent the screw from loosening. That is, implant fixation is improved by the double locking structure.

In addition, after bonding the crown and the second abutment in advance with an adhesive bonding agent, it is possible to simply bite the first abutment and fasten the connecting bolt, thereby preventing the adhesive bonding agent from penetrating the gums. .

In addition, since the protrusions and grooves corresponding to each other between the second abutment and the first abutment are first joined by occlusion and fixed by bolts secondarily, it is possible to prevent the crown, that is, the artificial tooth, from rotating due to occlusion. .

In addition, since the abutment is separated and coupled to the fixture by mutual occlusion, the number of parts can be reduced and separation and coupling can be facilitated.

1 is a block diagram of an implant according to an embodiment of the present invention.
2 is an exploded view of an implant according to an embodiment of the present invention.
3 is a perspective view showing the separation and coupling of the abutment according to an embodiment of the present invention.
4 is an exemplary view showing a horizontal cross section of a first abutment and a second abutment according to an embodiment of the present invention.
Figure 5 is a combined configuration diagram of an implant according to another embodiment of the present invention.
6 is an exploded view of an implant according to another embodiment of the present invention.
7 is a perspective view showing the separation and coupling of the abutment according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Bars shown in the following description and accompanying drawings are presented for an overall understanding of the present invention, so the technical scope of the present invention is not limited thereto. In addition, detailed descriptions of known configurations and functions that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of an implant according to an embodiment of the present invention.

Referring to FIG. 1, the implant of the present invention includes a fixture 100 to be placed in an alveolar bone, an abutment 200 provided on the fixture 100, and inserted into the abutment to be coupled to the fixture 100. In the implant consisting of the screw 300 and the crown 400 on the upper part of the abutment, it is the gist of the present invention to allow the abutment 200 to be separated and fixed up and down.

Here, since the fixture 100 and the screw 300 are the same as those of the conventional one, a detailed description will be omitted, and the structure of the abutment 200, which is the gist of the present invention, will be described in detail.

2 is an exploded view of an implant according to an embodiment of the present invention.

In the present invention, the abutment 200 includes a first abutment 240 and a second abutment 220 and a connection bolt 260.

That is, in the second abutment 220 and the first abutment 240, grooves and protrusions are formed and fitted, respectively, and may be fixed or separated by the connection bolt 260.

First, the first abutment 240 will be described in detail. The first abutment 240 is a part that is fixed to the fixture 100 and is separately coupled to the second abutment 220.

Here, in the first abutment 240, a screw 300 is fastened from an upper portion so that the lower portion is tightened with the inside of the fixture 100 to be fixed. The coupling hole of the first abutment 240 has a large upper diameter and a relatively small lower diameter, so that the screw 300 is fastened and seated. At this time, the head of the screw 300 is fastened to the upper portion of the coupling hole, and the leg portion of the screw 300 is fastened to the lower portion of the coupling hole.

The first abutment 240 is provided on the fixture 100, a coupling hole is formed therein, and the first protrusion 242 and the first groove 244 alternate upward along the circumference of the upper surface. Is formed by Here, the screw 200 may be inserted through a coupling hole inside the fixture 100 to connect and fix the fixture 100.

In addition, when the second abutment 220 is described, a portion fixed to the crown 40 is separated or combined with the first abutment 240. Here, the second abutment 220 and the first abutment 240 may be fixed by a connection bolt 260. Further, when the crown 400 is further described, the crown 400 has a receiving groove formed therein so as to accommodate the second abutment 220 therein, and from the receiving groove to the upper side. A hole through which the connection bolt 260 can be inserted is formed.

The first abutment 240 and the second abutment 220 will be described further with reference to FIG. 3, which is a detailed representation of the shapes of the first abutment 240 and the second abutment 220.

3 is a perspective view showing a separate coupling of an abutment according to an embodiment of the present invention.

Referring to FIG. 3, the second abutment 220 is provided on the first abutment 240, a coupling hole is formed therein, and the second protrusion 222 and the second protrusion are formed along the circumference of the lower surface. The grooves 224 are alternately formed to engage the first protrusions 242 and the first grooves 244 of the first abutment 240. Here, the first and second protrusions and the first and second grooves may have a square shape when viewed in a vertical section, and various grooves and protrusions such as a trapezoidal shape or a corrugated shape may be continuously implemented so as to facilitate occlusion.

The connection bolt 260 is coupled or separated into a coupling hole between the second abutment 220 and the first abutment 240 to fix or separate the second abutment 220. .

Here, a spiral is formed inside the second protrusion 222 of the second abutment 220 and the first protrusion 242 of the first abutment 240 so as to be fastened to the connection bolt 260 .

4 is an exemplary view showing a horizontal cross section of a first abutment and a second abutment according to an embodiment of the present invention. Fig. 4(a) shows the second protrusion 222 and the second groove 224, and the first protrusion 242 and the first groove 244 are alternately formed in two. The two protrusions 222 and the second grooves 224 and the first protrusions 242 and the first grooves 244 are alternately formed in three pieces, and can be implemented in various numbers.

5 is a block diagram of an implant according to another embodiment of the present invention.

Referring to Figure 5, the present invention is a fixture 10 to be placed in the alveolar bone, an abutment 20 provided on the fixture, and a screw 30 connecting the fixture 10 and the abutment 20 ) And the crown 40 provided on the upper part of the abutment, it is the gist of the present invention that the fixture 10 and the abutment 20 and the abutment 20 can be coupled or separated by occlusion.

6 is an exploded view of an implant according to another embodiment of the present invention.

Referring to FIG. 6, and in a state in which the abutment 20 and the fixture 10 are engaged, the screw 30 penetrates the crown 40 to provide the abutment 20 and the fixture 10. It is fastened to the inner coupling hole of) to be able to fix the abutment 20 and the fixture 10.

7 shows the shapes of the fixture 10 and the abutment 20 in more detail.

7 is a perspective view showing a separate coupling of an abutment according to another embodiment of the present invention.

Referring to FIG. 7, in the abutment 20, first protrusions 22 and first grooves 24 are alternately formed along the circumference of the lower surface of the abutment 20.

In addition, in the fixture 10, the second protrusions 12 and the second grooves 14 are alternately formed along the circumference of the upper surface to correspond to the first protrusions 22 and the first grooves 24 to be engaged. Thus, the fixture 10 and the abutment 20 can be easily combined and separated.

In more detail, since the first protrusion 22 is engaged with the second groove 14 and the second protrusion 12 is engaged with and coupled to the first groove 24, the fixture ( 10) The abutment 20 can be easily seated on the upper part. In addition, the fixture 10 and the abutment 200 are finally fixed to the screw 30.

In contrast, when separating, the screw 30 is first separated, and the abutment 200 is moved upward so that it can be easily separated from the fixture 10.

In addition, the first protrusion 22 and the second protrusion 12 may have a strong coupling, characterized in that a spiral is formed so as to be fastened with the screw 30.

Here, since the abutment 20 is integrated with the crown adhesively bonded on the upper part, it is seated on the fixture 10 and can be fastened by a screw 30, it is easy to perform an implant, and the crown and the abutment 20 are already When bonded to the fixture 10 in an integrated state, it is possible to completely block the penetration of the adhesive bonding agent into the gums.

As described above, it can be seen that the present invention makes it possible to easily separate and combine the abutment, so that it is easy to install or correct an implant, and it is a basic technical idea of an implant that can protect the gums during implantation. It goes without saying that within the scope of the basic idea, many other modifications are possible for those of ordinary skill in the art.

100: fixture
200: abutment
220: second abutment
222: second protrusion
224: second groove
240: first abutment
242: first protrusion
244: first groove
260: connecting bolt
300: screw
400: crown

Claims (4)

In the implant consisting of a fixture placed in the alveolar bone, an abutment provided on the fixture, a screw inserted into the abutment and coupled to the fixture, and a crown provided on the abutment,
The abutment,
A first abutment provided on the fixture, having a coupling hole therein, and alternately forming first protrusions and first grooves along the circumference of the upper surface;
A second abutment provided on the first abutment and having a coupling hole therein, and alternately forming a second protrusion and a second groove along the circumference of the lower surface to engage the first protrusion and the first groove. Ment; And
Implant, characterized in that consisting of; a connection bolt that is coupled to or separated from the coupling hole of the second abutment and the first abutment to fix or detach the second abutment. The method of claim 1,
Inside the first protrusion and the second protrusion,
Implant, characterized in that the spiral is formed so as to be fastened with the connection bolt. In the implant consisting of a fixture placed in the alveolar bone, an abutment provided on the fixture, a screw connecting the fixture and the abutment, and a crown provided on the abutment,
The abutment has a first protrusion and a first groove alternately formed along the circumference of the lower surface,
The implant according to claim 1, wherein the fixture is interlocked by alternately forming second protrusions and second grooves along a circumference of an upper surface to correspond to the first protrusions and the first grooves. The method of claim 3,
Inside the first protrusion and the second protrusion,
Implant, characterized in that the spiral is formed to be fastened with the screw.

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