WO2014137140A1

WO2014137140A1 - Device for connecting dental structure

Info

Publication number: WO2014137140A1
Application number: PCT/KR2014/001774
Authority: WO
Inventors: 남우창; 허재찬; 김태형; 엄태관
Original assignee: 오스템임플란트 주식회사
Priority date: 2013-03-05
Filing date: 2014-03-04
Publication date: 2014-09-12
Also published as: KR101400779B1

Abstract

The present invention relates to a device for connecting a dental structure, and more specifically, to a device for connecting a dental structure, comprising: an abutment comprising a lower portion and a protrusion; a fixing cap of which the outer circumferential surface is coupled to a dental structure and an accommodation space provided therein is larger than the protrusion, and comprising a first upper end, and a first side portion bent from the edge of the first upper end so as to be extended downward; and a resilient intermediate means detachably coupled to the fixing cap, and comprising a second upper end facing the first upper end, and a second side portion facing the first side portion, wherein a first buffer space capable of buffering an external force is provided between the first side portion and the second side portion to prevent the external force from being directly transmitted to the abutment when the external force is applied to the first side portion.

Description

Dental Structure Connections

The present invention relates to a dental structure connecting device, more specifically, it is possible to secure a sufficient elasticity between the fixing cap and the elastic mediation means and to connect the dental structure that can prevent the external force applied to the fixing cap is transmitted as it is For the device.

Dental structure connecting devices are used to detachable dental structures, such as dentures, in the oral cavity. Such a dental structure connection device, an abutment directly implanted in the alveolar bone or coupled to a fixture that is implanted in the alveolar bone, a metal cap fixed to a dental structure such as a denture and having an accommodation space therein, and the metal cap It is disposed in the receiving space of the and comprises a resilient mediator means that can be detachably coupled to the abutment.

The dental structure connecting device, as disclosed in US Patent No. 6,030,219 and Figure 1, is provided with an elastic mediating means made of a resilient material inside the metal cap fixed to the dental structure, the elastic mediating means Is snapably detachably coupled to the abutment.

In this case, the elastic mediation means provided in the metal cap is configured to have a shape corresponding to the inner space of the metal cap, the dental structure is coupled to the abutment in a snap structure so that the dental structure in the oral cavity To be fixed.

Dental structure connection device according to the prior art described above has the following problems.

First, the elastic mediating means is tightly coupled to the inner edge of the inner space of the metal cap so that the elastic mediating means is less likely to be separated from the metal cap, but the lateral load from the outer surface of the metal cap acts as the metal Since the load of the cap is directly transmitted to the abutment through the elastic mediating means, there is a disadvantage that excessive force may be applied to the abutment.

In addition, since the elastic mediating means is inserted into the metal cap fits tightly, the elastic media of the elastic mediating means can not be sufficiently secured, and accordingly there is a disadvantage that wear can easily occur according to repeated use.

The present invention was created in order to solve the above-mentioned problems, and more particularly, when the external force is applied to the fixed cap disposed outside the elastic mediation means, the external force can be sufficiently absorbed, and the elastic mediation means. It is an object of the present invention to ensure a sufficient elasticity of the dental structure connecting device that can prevent wear due to repeated use.

Dental structure connecting device according to the present invention for achieving the above object, a fixture is present in one piece with the abutment is directly implanted in the alveolar bone, or can be fixed position by the fixture implanted in the alveolar bone An abutment comprising: an abutment including a lower portion inserted into an alveolar bone or fixture and a protrusion protruding upward from the alveolar bone or fixture;

A fixed cap having an outer circumferential surface coupled to the dental structure and having a receiving space larger than the protrusion, and having a first upper portion and a first side portion bent from an edge of the first upper portion and extending downward. ; And

Removably coupled to the protrusion while accommodating at least a portion of the protrusion therein, an outer circumferential surface is elastically mediated means coupled to the fixing cap while being accommodated in the receiving space of the fixing cap, the second facing the upper end portion; And an elastic mediator having an upper end and a second side facing the first side.

A first buffer space is provided between the first side portion and the second side portion to buffer the external force so that the external force is not directly transmitted to the abutment 20 when an external force is applied from the outside to the first side portion. do.

In the dental structure connecting device,

The first buffer space may increase in a horizontal distance from an upper side to a lower side.

In the dental structure connecting device,

The first buffer space may be kept constant in the vertical direction.

In the dental structure connecting device,

The first buffer space may be provided between a lower portion of the first side portion and a lower portion of the second side portion.

In the dental structure connecting device,

The fixing cap and the elastic mediating means may be swiveled with respect to the protrusion, and the second fixing member may contact the outer surface of the second side without directly contacting the abutment in the process of swiveling the fixing cap. The side portion may protrude downward from the first side portion.

In the dental structure connecting device,

When the external force is applied to the first upper end of the fixed cap may be provided a second buffer space that can buffer the external force.

In the dental structure connecting device,

At least a part of the second buffer space may be provided at an edge of the second upper end portion and the protrusion.

In the dental structure connecting device,

The lower end of the second side portion may be rounded to facilitate insertion of the protrusion.

In the dental structure connecting device,

The elastic mediation means is provided with a coupling protrusion extending downward from the center of the second upper end portion,

* An accommodating groove may be provided at the center of the abutment of the abutment so as to extend downwardly from the top and to allow the coupling protrusion to be fitted.

In the dental structure connecting device,

The first side portion and the second side portion can be detachably fitted to each other.

In the dental structure connecting device,

The elastic mediation means is provided with a protrusion projecting inward from the lower end of the coupling projection,

The abutment may be provided with a locking portion that protrudes outward so that the protrusion may be caught.

In the dental structure connecting device,

The second side part may be arranged to be spaced apart from each other along the edge of the second upper end.

In the dental structure connecting device of the present invention, the fixed cap and the elastic mediating means are in close contact with each other, but external force is applied from the outside to the first side between the first side of the fixed cap and the second side of the elastic mediating means. The first buffer space for buffering the external force is provided so that the external force is not directly transmitted to the second side when it is lost, thereby preventing excessive force from being transmitted to the abutment and ensuring sufficient elasticity of the elastic mediating means. There is an advantage that can be prevented due to repeated use.

1 is a view showing a dental structure connecting device according to the prior art.

Figure 2 is a view showing a dental structure connecting device according to an embodiment of the present invention.

Figure 3 is a perspective view showing the elastic mediator as one component of the dental structure connecting device of FIG.

4 is a view schematically showing a state in which the dental structure connecting device of Figure 2 is installed in the oral cavity.

Figure 5 is a perspective view showing the elastic mediation means as one component of the dental structure connecting device according to another embodiment of the present invention.

6 and 7 is a view showing a dental structure connecting device according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings a dental structure connecting device according to an embodiment of the present invention will be described in detail.

Dental structure connecting device 10 according to an embodiment of the present invention, for installing a dental structure, such as a denture in the oral cavity, abutment 20, fixed cap 30 and the elastic mediating means 40 It is configured to include).

The abutment 20 may be directly implanted in the alveolar bone G when the fixture is integrally present with the abutment, or may be fixed by a fixture implanted in the alveolar bone. It includes a lower portion 21 which can be inserted into and fixed in position, and a protrusion 22 which is exposed outward from the alveolar bone or fixture and protrudes upward. The upper side surface of the protrusion 22 is curved outwardly, and the lower side surface of the protrusion 22 is curved concave inward so that the elastic mediating means 40 can be easily snapped together.

In addition, a fastening hole 221 having a polygonal cross section and extending downward from the top surface is provided at the center of the protrusion 22. An external tool may be inserted into the fastening hole in order to place the abutment 20 in the alveolar bone or fixture. The abutment 20 may be used a titanium or gold material harmless to the human body.

The fixed cap 30, the outer circumferential surface is coupled to the dental structure, there is provided a receiving space larger than the protrusion 22 therein, made of a metal material. The fixing cap 30 may be swiveled when the fixing cap 30 is coupled to the protrusion 22 by the elastic mediating means 40.

The fixing cap 30 is configured to include a first disc-shaped first upper end 31 having a substantially disc shape, and a first side part 32 that is bent from an edge of the first upper end 31 and extends downward.

The first upper end portion 31 and the first side portion 32 is rounded, and the outer side surface of the first side portion 32 is provided with a plurality of irregularities that do not fall out of the dental structure when combined with the dental structure Will be.

In addition, an inner protrusion 321 is provided on an inner surface of the first side part 32 to allow the fixing cap 30 to be detachably fixed to the elastic medium 40.

The elastic mediating means 40 is detachably coupled to the protrusion 22 while accommodating at least a portion of the protrusion 22 therein and an outer circumferential surface thereof is accommodated in the accommodation space of the fixing cap 30. As coupled to 30, it may be made of a rubber or silicone material excellent in elasticity. The elastic mediating means 40 has a second upper end portion 41 in the shape of a disk facing the first upper end portion 31 and a second side portion which is bent from an edge of the second upper end portion 41 and extends downward. 42). The second side portion 42 is configured to face the first side portion 32.

Between the first side portion 32 and the second side portion 42, when an external force is applied to the first side portion 32 from the outside, the external force is buffered so that the external force is not directly transmitted to the second side portion 42. The 1st buffer space S1 which can be provided is provided. Specifically, the second side portion 42 is provided with a catching portion 421 that is caught in the inner projection 321 of the first side portion 32 in a substantially center, and the lower side of the catching portion 421 is the first side portion ( 32) is spaced apart from each other to provide a first buffer space (S1).

The first buffer space S1 may have a greater horizontal distance from the upper side to the lower side. As described above, when the separation distance at the lower side of the first buffer space S1 is greater than the separation distance at the upper side of the first buffer space S1, when the external force is applied from the lower side of the first buffer space S1, the effect is buffered. Can be maximized. That is, when an external force is applied to the first side portion 32, the first side portion 32 is elastically deformed until it reaches the second side portion 42 while absorbing the external force sufficiently, and after the external force is absorbed to some extent, the first side portion ( 32) transmits the relaxed external force to the second side portion 42, thereby preventing excessive external force from being directly transmitted to the second side portion 42. The lower end of the second side part 42 may be located at the same height as the lower end of the first side part 32. However, the present invention is not limited thereto, and the second side portion 42 may extend downward from the first side portion 32 to protrude. As the second side portion 42 extends downward from the first side portion 32 and protrudes, the first side portion 32 of the fixed cap 30 is in the process of inclining (swivel) the fixed cap 30. The lower end does not directly contact the abutment 20, and the abutment 20 and the elastic mediating means and the fixing cap do not come into contact even when fastened or separated. Accordingly, the edge portion of the elastic mediating means 40 is non-contacted with the abutment during fastening, detachment and tilting movement to prevent damage due to friction.

In addition, a second buffer space capable of buffering the external force when an external force is applied to the first upper end 31 of the fixing cap 30 between the protrusion 22 or the periphery thereof and the second upper end 41. (S2) is provided. At least a part of the second buffer space S2 is provided between the protrusion part 22 and the second upper end part 41, and thus can be absorbed to some extent when an external force is applied.

Dental structure connecting device 10 according to an embodiment of the present invention has the following effects.

First, after the fixture is placed in the alveolar bone, the abutment 20 is fastened to the fixture. Thereafter, the fixing cap 30 and the elastic mediation means 40 is inserted into the dental structure snaps to the abutment 20. Specifically, the protrusion 22 of the abutment 20 is snap-coupled into the elastic medium 40. The dental structure connecting device 10 according to the present invention, when a lateral load is applied from the outside, the external force is applied to the first side portion 32, the external force applied to the first side portion 32 is immediately Rather than being transmitted to the abutment and fixture via the second side 42, the first side 32 and the second side 42 are separated from each other (first buffer space) so that the first side 32 is second The first side portion 32 absorbs a certain amount of external force while elastically deforming until it contacts the side portion 42, and the first side portion 32 contacts the second side portion 42 in a state where the external force is sufficiently absorbed. Thereby transmitting the relaxed external force to the second side and the abutment.

In addition, as the second buffering space S2 is provided, the fixing cap 30 and the elastic mediating means 40 can swivel with respect to the protrusion 22.

In addition, when a vertical external force is applied, the protrusion part 22 and the second upper end part 41 are separated by the second buffer space S2, and the second side part 42 is lowered from the elastic medium 40. Protruding, the external force is absorbed by the elastic mediating means 40 to some extent until the protrusion 22 contacts the second upper end 41, and accordingly the excessive external force is passed through the second upper end 41 through the abutment ( 20) will not be added.

In addition, as the second side portion 42 protrudes downwardly as compared to the first side portion 32, the elastic mediating means 40 coupled to the fixing cap 30 performs excessive swiveling rotation. The side portion 32 does not directly contact the abutment 20, and the first side portion 32 comes into contact with the second side portion 42, thereby minimizing damage to the abutment 20.

In addition, since the lower end of the second side portion 42 is rounded, there is an advantage that the protrusion 22 can be easily inserted.

Dental structure connecting device according to the present invention can be modified as follows.

First, in the above-described embodiment, the second side portion is illustrated as being integrally connected along the edge of the second upper end portion, but is not limited thereto. As shown in FIG. 5, the second side portion of the elastic mediating means 240 is shown in FIG. A plurality of 242 may be spaced apart from each other along the edge of the second upper end 241. As the plurality of second side portions 242 are spaced apart from each other, the restraint of each side portion 242 is reduced, and accordingly, the second side portion can easily absorb external force.

In addition, in the above-described embodiment is illustrated that the second side portion is snap-fitted and coupled to the lower side of the protrusion of the abutment, but is not limited thereto, as shown in FIG. 6, the elasticity of the dental connection device 300 The intermediate means 340 is provided with a coupling protrusion 343 extending downward from the center of the second upper end 341, and from the top to the bottom in the center of the protrusion 322 of the abutment 320. An accommodation groove 322a may be provided to extend but allow the coupling protrusion to be fitted. As the coupling protrusion 343 is forcibly fitted into the receiving groove 322a, the abutment 320 and the elastic mediating means 340 are easily coupled and separated. In addition, the present invention is not limited thereto, and the first side part 322 and the second side part 342 may be pressed together like a lego block.

In addition, as illustrated in FIG. 7, the elastic mediation means 440 of the dental connecting device 400 is provided with a locking step 442a protruding inward from the lower end of the second side portion 442. The abutment 420 may be provided with a catching part 423 protruding outward so that the catching jaw 442a may be caught.

The dental connection device according to the present invention is not limited thereto, and may be expanded and interpreted as long as it is reasonably interpreted according to the claims.

Claims

An abutment which is integral with the abutment and is directly implanted in the alveolar bone or can be fixed by a fixture implanted in the alveolar bone, the abutment being inserted into the alveolar bone or fixture and from the alveolar bone or fixture An abutment including a protrusion protruding upward;

A fixed cap having an outer circumferential surface coupled to the dental structure and having a receiving space larger than the protrusion, and having a first upper portion and a first side portion bent from an edge of the first upper portion and extending downward. ; And

Removably coupled to the protrusion while accommodating at least a portion of the protrusion therein, an outer circumferential surface is elastically mediated means coupled to the fixing cap while being accommodated in the receiving space of the fixing cap, the second facing the upper end portion; And an elastic mediator having an upper end and a second side facing the first side.

A first buffer space is provided between the first side portion and the second side portion to buffer the external force so that the external force is not directly transmitted to the abutment 20 when an external force is applied from the outside to the first side portion. Dental structure connecting device, characterized in that.
The method of claim 1,

The first buffer space is a dental structural connection device, characterized in that the horizontal distance increases from the upper side to the lower side.
The method of claim 1,

The first buffer space is a dental structural connecting device, characterized in that the distance in the vertical direction is kept constant.
The method of claim 1,

And the first buffer space is provided between the lower portion of the first side portion and the lower portion of the second side portion.
The method of claim 1,

The fixing cap and the elastic mediating means may be swiveled with respect to the protrusion, and the second fixing member may contact the outer surface of the second side without directly contacting the abutment in the process of swiveling the fixing cap. The side portion protrudes lower than the first side portion, characterized in that the dental structure connecting device.
The method of claim 1,

And a second buffer space for buffering the external force when an external force is applied to the first upper end of the fixed cap.
The method of claim 6,

The second buffer space, the dental structure connecting device, characterized in that at least part is provided on the edge of the second upper end and the protrusion.
The method of claim 1,

The lower end of the second side portion is connected to the dental structure, characterized in that the protrusion is rounded so that it can be easily inserted.
The method of claim 1,

The elastic mediation means is provided with a coupling protrusion extending downward from the center of the second upper end portion,

The center of the abutment of the abutment is connected to the dental structure, characterized in that the receiving groove which extends from the upper side to the lower side is provided with a coupling groove for the interference fitting.
The dental structure connecting device of claim 1, wherein the first side portion and the second side portion are detachably fitted to each other.
The method of claim 1,

The elastic mediation means is provided with a locking projection protruding inward from the lower end of the coupling projection,

The abutment, the dental structure connecting device, characterized in that the locking portion protruding to the outside so that the projection is caught.
The method of claim 1,

The second side wall is connected to the dental structure, characterized in that the plurality is arranged spaced apart from each other along the edge of the second upper end.