KR101089069B1 - A connector and implant including the same - Google Patents

Abstract

PURPOSE: A connector and an implant including the same are provided to prevent the rotation of an implant and an implant supporting member. CONSTITUTION: An implant(10) including a connector comprises: a fixture(20) which is implanted in bone tissue; an abutment(30) which is combined with the fixture and is expanded upward; an implant which is combined with an abutment and has the shape of a dental implant; a supporting member(50) which forms the core of an implant; a connector(100) which is combined with the upper part of the abutment; and a connecting member(60) in which the connector is coupled with the abutment.

Description

Connector and implant including the same {A connector and implant including the same}

Embodiments of the present invention relate to a connector, and more particularly, to a connector connecting between a fixture or abutment and a prosthesis and configured to correspond to an inner surface shape of the prosthesis.

Dental implants are prosthetic devices embedded in oral tissues such as bone tissue for holding and supporting prostheses, and are configured to replace the roots of missing teeth.

In detail, the implant functions to restore the natural function of the teeth by connecting the artificial teeth after fusion of the artificial root made of titanium, etc. in the alveolar bone without rejection in the human body.

The implant includes a fixture fixed to the alveolar bone, an abutment coupled to an upper portion of the fixture and a fastening screw fixing the abutment to the fixture.

In general, the implant procedure involves a first procedure of placing the fixture in the jawbone and a process of fixing the final prosthesis after waiting a long time of about 3 to 6 months.

The process of manufacturing the implant includes placing a fixture in the jawbone, fastening the abutment to the fixture, and mounting a prosthesis on the upper side of the abutment.

And, before the prosthesis is mounted to the abutment, its shape and shape can be designed. The prosthesis is designed to have a rigid and stable mounting on its inner surface, and may be designed on its outer surface in consideration of aesthetic functionality and chewing action.

However, according to the conventional implant, there is a problem that it is not easy to design the shape of the prosthesis precisely, so that the prosthesis is firmly mounted at the correct position.

In this case, the possibility of failure of the implant procedure increases, and the user's satisfaction with the implant procedure decreases.

Embodiments of the present invention have been proposed to solve the above problems, and an object of the present invention is to provide a connector for precisely designing the shape of a prosthesis or a prosthesis support member.

An implant according to an embodiment of the present invention includes a fixture placed in bone tissue; An abutment coupled to the fixture and extending upward; A prosthesis coupled to the abutment and having an artificial tooth shape; A support member coupled to an inner side of the prosthesis and forming a core of the prosthesis; A connector having an outer shape corresponding to an inner surface of the support member and coupled to an upper side of the abutment; And a fastening member for fastening the connector to the abutment, the connector comprising: a main body formed to recess the inside thereof; At least one formed along an outer circumferential surface of the main body, the rotation preventing unit being defined as a groove having a predetermined shape to prevent rotation of the prosthesis; And a margin portion formed below the main body and supporting a lower end portion of the prosthesis.

In the connector according to another embodiment of the present invention, in a connector supported on at least one of a fixture placed in bone tissue and an abutment coupled to the fixture, the connector having an outer surface corresponding to a toothed crown, An upper portion having a plurality of uneven portions and a groove portion defined as a space between the plurality of uneven portions on an outer circumferential surface; A lower portion extending downward of the upper portion to support the crown; And an anti-rotation part formed at the upper portion to prevent rotation of the crown.

According to the embodiment of the above configuration, by providing a connector corresponding to the inner surface shape of the prosthesis or the inner surface shape of the support member for supporting the inside of the prosthesis, there is an effect that the prosthesis can be accurately mounted in the required position.

In addition, the anti-rotation structure is provided in the connector, there is an advantage that the rotation of the prosthetic or prosthetic support member coupled to the connector can be prevented. As a result, the prosthesis or the prosthesis support member can be firmly mounted to the fixture or abutment.

In addition, by providing a support structure at the bottom of the connector, the prosthesis or prosthesis support member is easily supported by the connector, there is an effect that the mounting height of the prosthesis or prosthesis support member can be easily adjusted.

1 is a perspective view showing a portion of the implant according to the first embodiment of the present invention incision.
2 is a cross-sectional view showing the configuration of an implant according to a first embodiment of the present invention.
3 is a perspective view showing the configuration of a connector according to a first embodiment of the present invention;
4 is a view showing the internal configuration of the connector by cutting a part of the connector according to the first embodiment of the present invention.
5 is a perspective view showing the configuration of a connector according to a second embodiment of the present invention;
6 is a sectional view showing an implant provided with a connector according to a second embodiment of the present invention;
7 is a perspective view showing a configuration of a connector according to a third embodiment of the present invention.
8 is a rear perspective view showing the configuration of the connector according to the third embodiment of the present invention;
9 is a perspective view showing a configuration of a connector according to a fourth embodiment of the present invention.
10 is a cross-sectional view showing the configuration of an implant according to a fifth embodiment of the present invention.
11 is a cross-sectional view showing the configuration of an implant according to a sixth embodiment of the present invention.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view showing a cut portion of the implant according to the first embodiment of the present invention, Figure 2 is a cross-sectional view showing the configuration of the implant according to the first embodiment of the present invention.

1 and 2, in the implant 10 according to the first embodiment of the present invention, a fixture 20 which is placed in bone tissue and becomes a tooth root of an artificial tooth and is coupled to the inside of the fixture 20. And abutments 30 extending upward. The abutment 30 may be screwed on the upper portion of the fixture 20.

In addition, the implant 10 includes a crown 40 coupled to an upper side of the abutment 30 and a connection member connecting the abutment 30 and the crown 40 to each other. Connector 100 and a fastening member 60 for fastening the connector 100 to the abutment 30 are included.

The lower portion of the fixture 20 is formed with a thread 21 is coupled to the bone tissue, the upper portion of the fixture 20 includes a gum corresponding portion 22 disposed on the gum portion. Based on ℓ1-ℓ1 'shown in FIG. 2, the lower portion of the fixture 20 is implanted in bone tissue and the upper portion of the fixture 20 may be disposed on the gum side.

Such a type of fixture may be referred to as an internal type.

The crown 40 may be formed of metal or ceramic as a “prosthesis” having a tooth shape. And inside the crown 40, there is provided a support member 50, which is defined as a core for supporting the crown 40. The support member 50 may be referred to as "crown coping".

The crown 40 is disposed to surround the outside of the support member 50, the outer surface shape of the support member 50 may correspond to the inner surface shape of the crown 40.

The connector 100 surrounds the upper outer side of the abutment 60 and is disposed to be in contact with and supported on the upper side of the fixture 20. The outer surface shape of the connector 100 may correspond to the inner surface shape of the support member 50. That is, the inner surface shape of the support member 50 may be designed according to the outer shape of the connector 100.

In detail, a CAD / CAM system may be used in the process of manufacturing the implant. In the CAD / CAM system, shape or dimensional data of the implant components may be stored in advance.

In particular, the shape (dimension) data of the connector 100 may be stored in advance in the CAD / CAM system. In addition, the shape (dimension) data of the connector 100 may be interpreted in the state in which the abutment 30 is fastened to the connector 100 to design an inner surface of the support member 50.

The support member 50 designed in the manner described above may be coupled to the outside of the connector 100. In detail, the support member 50 may be adhesively cemented to the connector 100.

Meanwhile, the fastening member 60 may be screwed to the inside of the abutment 30 in a state supported by the connector 100.

3 is a perspective view showing the configuration of a connector according to a first embodiment of the present invention, Figure 4 is a view showing the internal configuration of the connector by cutting a part of the connector according to the first embodiment of the present invention.

3 and 4, the connector 100 according to the first embodiment of the present invention includes an upper portion 110 as a connector “body” and a lower portion 150 extending downward from the upper portion 110. do.

The upper part 110 has a hollow cylindrical shape (or a truncated conical shape) and extends downward from the upper end of the connector 100 by a predetermined length.

On the outer circumferential surface of the upper part 110, a plurality of uneven parts 112 are formed. The plurality of uneven parts 112 may be spaced apart by a predetermined distance in the vertical direction of the upper part 110.

The groove portion 113 is formed between the one uneven portion and the other uneven portion adjacent to the one uneven portion among the plurality of uneven portions 112. That is, a portion formed between the plurality of uneven parts 112 may be defined as a groove recessed by a predetermined depth.

The support member 50 may be bonded to the upper portion 110 by a predetermined bonding agent. In addition, since the uneven portion 112 is formed on the upper portion 110, the support member 50 may be firmly adhered to the connector 100.

The upper portion 110 further includes a rotation preventing portion 115 to prevent rotation of the support member 50 and / or the crown 40. The rotation preventing part 115 may have a shape of a groove by cutting at least a portion of the outer circumferential surface of the upper part 110 in the longitudinal direction.

In addition, a plurality of anti-rotation parts 115 may be formed along the outer circumferential surface of the upper portion 110. In detail, the plurality of anti-rotation unit 115 may be disposed having equal intervals or unequal intervals, and when viewed from above, the connector 100 may form a hexagonal shape or an octagonal shape.

That is, since at least a portion of the outer circumferential surface of the upper portion 110 has a polygonal shape by the rotation preventing portion 115, the support member 50 is prevented from turning in the state coupled to the connector 100. Can be.

The outer circumferential surface of the upper portion 110 may be configured such that the uneven portion 112 and the rotation preventing portion 115 are alternately disposed.

The lower part 150 includes a round extension part 152 extending round from the lower end of the upper part 110 in an outward direction. The round extension 152 is configured to support the lower side of the support member 50 or / and crown 40.

In addition, on the round extension 152, the height at which the support member 50 or the crown 40 is supported may vary. For example, as shown in FIG. 4, when the support member 50 is located at one height, the external virtual line l2 may be adjusted to a position l2 'of another height.

As a result, when the mounting height of the crown 40 needs to be changed according to the design of the implant, the height of the lower end of the support member 50 or the crown 40 supported by the round extension 152 may be adjusted. .

On the other hand, inside the connector 100, a fastening member inserting portion 120 into which the fastening member 60 is inserted and a fastening member seating portion 122 to which the fastening member 60 is seated are formed.

The fastening member 60 is inserted from the fastening member insertion part 120 and extends downward, and the head portion of the fastening member 60 may be supported by the fastening member seating part 122.

In addition, an inner rotation preventing part 124 is formed inside the connector lower part 150 to prevent the abutment 30 from being rotated in a state in which the abutment 30 is coupled to the connector 100. The inner anti-rotation part 124 may have a polygonal shape, that is, a hexagonal or octagonal shape.

The lower side of the inner rotation preventing portion 124, the contact support portion 125 which is supported by the fixture 20 is formed. The contact support 125 is formed to be inclined upward by an angle α with respect to the horizontal line (or the lower end of the connector). Here, α may have a value of approximately 45 degrees.

Hereinafter, the second to sixth embodiments of the present invention will be described. Since the present embodiment differs only in the structure of the connector as compared with the first embodiment, the description is mainly focused on the difference, and the same reference numerals are used for the description of the first embodiment.

5 is a perspective view showing the configuration of a connector according to a second embodiment of the present invention, Figure 6 is a cross-sectional view showing an implant provided with a connector according to a second embodiment of the present invention.

5 and 6, in the connector 200 according to the second embodiment of the present invention, the upper part 210 in which a plurality of uneven parts 212 are formed and the lower part of the upper part 210 are rounded outwardly. A lower portion 250 that extends forcibly is included.

The support member 50 may be coupled to the upper portion 210, and a lower end portion of the support member 50 or the crown 40 may be supported on the lower portion 250.

Inside the upper portion 210, a fastening member insertion part 220 into which the fastening member 60 is inserted is formed.

The upper portion 210 has a first upper surface 214 formed at a first height and a second upper surface 216 positioned below the first upper surface 214 by a predetermined height. The first top surface 214 and the second top surface 216 may extend in a direction parallel to the horizontal plane.

In the upper portion 210, a step difference is formed which connects the first upper surface 214 and the second upper surface 216 and defines the height difference between the first upper surface 214 and the second upper surface 216. Part 215 is included. The step forming portion 215 may extend in a direction perpendicular to the first top surface 214 and the second top surface.

In other respects, the step forming portion 215 and the second top surface 216 may be understood to be formed by cutting a portion thereof in a state where the first top surface 214 is formed in a circular shape. .

The first and second top surfaces 214 and 216 and the step forming portion 215 having the above shapes are configured such that the upper edge portion of the upper portion 210 is cut in a predetermined size to have a step shape. You might call it "Stairway Top".

In addition, the first and second top surfaces 214 and 216 and the step forming unit 215 may function as the "rotation preventing part" described in the first embodiment.

The inner surface shape of the support member 50 is configured to correspond to the outer shape of the connector 200. In detail, the support member 50 includes an interference part 55 that interferes with the step forming part 215.

When the support member 50 is coupled to the outside of the connector 200, the step forming part 215 may interfere with the interference part 55. That is, the step forming portion 215 and the interference portion 55 may be disposed to abut each other.

As such, the interference part 55 may interfere with the step forming part 215, so that the support member 50 may be prevented from rotating in the predetermined direction with respect to the connector 200.

7 is a perspective view showing the configuration of a connector according to a third embodiment of the present invention, Figure 8 is a rear perspective view showing the configuration of a connector according to a third embodiment of the present invention.

7 and 8, in the connector 300 according to the third embodiment of the present invention, an upper portion 310 in which a plurality of uneven parts 312 are formed and a lower portion extending downward of the upper portion 310 are provided. 350 is included.

The upper part 310 includes an anti-rotation surface 315 formed to be inclined in a predetermined direction. The anti-rotation surface 315 may be understood to be formed by cutting at least a portion of the upper portion 310, assuming that the upper portion 310 has a cylindrical shape (or a truncated conical shape).

The anti-rotation surface 315 may function as the "anti-rotation part" described in the first embodiment.

The inner surface shape of the support member 50 may be configured to correspond to the outer shape of the connector 300. In particular, the support member 50 may include at least a portion having a shape corresponding to the anti-rotation surface 315.

That is, in the state in which the support member 50 is coupled to the connector 300, the anti-rotation surface 315 may interfere with at least a portion of the support member 50. As a result, the support member 50 may be prevented from rotating in a predetermined direction by interfering with the anti-rotation surface 315.

The lower portion 350 includes a first support surface 352 for supporting the support member 50 or the crown 40.

The first support surface 352 may be configured to extend outward from a lower end of the upper portion 310. In addition, the first support surface 352 may extend in a direction parallel to the horizontal line (or the lower end of the connector).

By the above configuration, the support member 50 or the crown 40 can be easily supported and mounted (coupled) to the first support surface 352.

Meanwhile, for convenience of description, the configuration of the lower portion 350 has been described as the third embodiment, but the configuration of the lower portion 350, that is, the configuration of the first support surface 352 is the same as that of the first or second embodiment. It may be applied to a connector structure.

9 is a perspective view showing the configuration of a connector according to a fourth embodiment of the present invention.

Referring to FIG. 9, the connector 400 according to the fourth embodiment of the present invention includes an upper portion 410 on which a plurality of uneven portions 412 are formed and a lower portion 450 extending downward of the upper portion 410. Included.

The lower portion 450 includes a second support surface 452 extending inclined laterally downward from the lower end portion of the upper portion 410.

The second support surface 452 may be configured to support the lower side of the support member 50 or the crown 40. In addition, the second support surface 452 may allow the mounting height of the support member 50 or the crown 40 to be adjusted like the round extension 152 described in the first embodiment.

The structure of the second support surface 452 described in this embodiment may be applicable to the structure of the connector according to the previous embodiments.

On the other hand, the round extension part 152, the 1st support surface 352, and the 2nd support surface 452 which were demonstrated above form a "margin portion" in the point which forms the lower edge of the said connector 100. FIG. It can be called.

10 is a cross-sectional view showing the configuration of an implant according to a fifth embodiment of the present invention.

Referring to FIG. 10, in the implant 10 according to the fifth embodiment of the present invention, a connector 100 coupled to the abutment 30 and a crown 40 coupled to the outside of the connector 100 are provided. Included.

That is, compared with the first embodiment, it can be understood that the crown 40 is made integral with the support member 40.

The inner surface shape of the crown 40 is configured to correspond to the outer surface shape of the connector 100. That is, the inner shape of the crown 40 may be determined according to the outer shape of the connector 100. In addition, the crown 40 may be coupled to the connector 100 by a predetermined bonding agent, and the lower end of the crown 40 may be supported by the lower portion of the connector 100.

In addition, the "rotation preventing part" described above may interfere with at least a portion of the crown, and in this process, the rotation of the crown may be prevented.

11 is a cross-sectional view showing the configuration of an implant according to a sixth embodiment of the present invention.

Referring to FIG. 11, the implant 600 according to the sixth embodiment of the present invention includes a fixture 620 implanted in bone tissue, an abutment 630 coupled to the fixture 620, A connector 670 coupled to the upper side of the abutment 630 and a fastening member 660 for fastening the connector 670 to the abutment 630 are included.

In addition, the implant 600 includes a support member 650 having an inner surface corresponding to the outer shape of the connector 670 and a toothed crown 640 coupled to the outside of the support member 650.

The fixture 620 is formed with a thread 621 to be implanted in the bone tissue. The thread 621 may extend in a spiral direction from an upper end portion to a lower end portion of the fixture 620.

The lower part of the imaginary line (L3-L3 ') shown in FIG. 11 represents the section to be implanted in bone tissue. That is, the fixture 620 may be placed in the bone tissue from the upper end to the lower end. Such a type of fixture may be referred to as a sub-merged type.

In addition, an upper portion of the imaginary line (L3-L3 ') of the implant 600 is disposed to correspond to the gum.

The above features of the previous embodiments may be equally applied to the present embodiment.

According to the connector described above, the crown or the support member can be precise design, there is an effect that can be firmly mounted to the fixture or abutment.

10: implant 20: fixture
30: abutment 40: crown
50: support member 60: fastening member
100 connector 110 upper part
115: anti-rotation unit 150: lower

Claims (12)

Fixtures placed in bone tissue;
An abutment coupled to the fixture and extending upward;
A prosthesis coupled to the abutment and having an artificial tooth shape;
A support member coupled to an inner side of the prosthesis and forming a core of the prosthesis;
A connector having an outer shape corresponding to an inner surface of the support member and coupled to an upper side of the abutment; And
Includes a fastening member for fastening the connector to the abutment,
In the connector,
A main body is formed to be recessed inside;
At least one formed along an outer circumferential surface of the main body, the rotation preventing unit being defined as a groove having a predetermined shape to prevent rotation of the prosthesis; And
An implant is formed on the lower side of the main body, the margin portion (margin portion) for supporting the lower end of the prosthesis. The method of claim 1,
The outer circumferential surface of the main body is formed with a plurality of uneven parts coupled with the support member or prosthesis,
The rotation preventing part is an implant, characterized in that arranged alternately with the uneven portion. The method of claim 2,
The anti-rotation portion is an implant, characterized in that having a hexagonal or octagonal cross section. The method of claim 1,
The rotation prevention unit,
And an upper edge portion of the main body is cut by a predetermined size and configured to have a step shape. The method of claim 1,
The margin portion extends rounded downward from the lower end of the main body toward the outside, the implant to enable the height adjustment of the prosthesis. The method of claim 1,
In the margin part,
An implant comprising a first support surface extending horizontally outward from the lower end of the main body. The method of claim 1,
In the margin part,
Implant comprising a second support surface which is inclined laterally downward from the lower end of the main body. The method of claim 1,
The prosthesis and the support member are integrally formed. In the connector which is supported by at least one of a fixture placed in bone tissue and an abutment coupled to the fixture, the connector having an outer surface corresponding to the tooth-shaped crown,
An upper portion having a plurality of uneven portions and a groove portion defined as a space between the plurality of uneven portions on an outer circumferential surface thereof;
A lower portion extending downward of the upper portion to support the crown; And
The connector is formed on the upper portion, including a rotation preventing portion to prevent the rotation of the crown. The method of claim 9,
In the rotation prevention unit,
Connector including a plurality of incision grooves disposed at equal intervals or unequal intervals along the outer peripheral surface of the upper portion. The method of claim 9,
In the rotation prevention unit,
A plurality of upper surfaces having different heights from each other; And
And a step forming portion connecting the plurality of top surfaces. The method of claim 9,
In the rotation prevention unit,
A connector extending obliquely in a preset direction, the rotation preventing surface interfering with the crown;

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