KR20190068144A - Dental Implant - Google Patents

Abstract

The present invention relates to an abutment for an implant, which comprises: a connecting member where a lower portion is fixed to a fixture; a rotating member rotatably provided on an upper portion of the connecting member; and a tightening member for fastening the connecting member and the rotating member, wherein the rotating member is provided to be engageable with the connecting member in a state where the connection member is at a predetermined angle with the direction in which the connecting member is fixed to the fixture, when engaged to the connecting member.

Description

[0001] DENTAL IMPLANT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental implant, and more particularly to an abutment which is inserted into a fixture immersed in an alveolar bone at an upper portion and abutment to which a crown is fixed at an upper portion, Since the fastening member having the fastening portion corresponding to the threaded portion can directly press the outer circumferential surface of the abutment and the abutment can be installed on the fixture, The present invention relates to a dental implant for performing an implant treatment.

Generally, dental implants are used to provide a volume that can be adequately wrapped through additional operations such as bone grafting and bone chest surgery on the site of a tooth defect or on the jawbone of a tooth extraction site It is a dental treatment that restores the function of the natural teeth by implanting a biocompatible implant body on the enlarged jawbone.

In the early 20th century, metal implants made of gold, silver, lead, iridium, iron, and cobalt alloys were used in the early 16th and 17th centuries, and artificial teeth made of gold and ivory were used. Developed.

Since the 1940s, suborbital implants and titanium blade implants have been developed and popularized but have a short life span and a low success rate. Since 1982, Branemark, Sweden, in Toronto, Canada, has published bone anchoring implants for 15 years, with a success rate of more than 90%.

Such an implant implies a substitute that restores when the tissue of the human body is lost, but refers to an artificial tooth implant in a dentist.

That is, an implant is made by implanting an artificial root fixture made of titanium, which does not have a rejection reaction to the human body, on an alveolar bone that has been extracted from a natural tooth, so as to replace the root of the lost natural tooth, It is a cutting-edge procedure that restores the original function of a natural tooth by fixing a crown.

The dental implant is composed of a fixture to be placed on the alveolar bone, an abutment to be fastened to the fixture, and a crown of a real tooth shape to be mounted on the abutment.

Here, a fixture corresponding to a root is referred to as an artificial root, a tooth or a fixture in the art, an abutment is also referred to as abutment or abutment, and a crown corresponding to a tooth is an artificial tooth, Also called crown, prosthesis.

The prior art of dental implants having various types and procedures is disclosed in Korean Patent Application Publication No. 10-0419738 entitled " Dental Implant System " and Korean Patent Application Publication No. 10-0677870 Abutment and dental implant with the abutment, "and" implant for flapless operation or mini-flap operation "of Korean Patent Registration No. 10-0879777.

In other words, artificial teeth are generally made artificially so that a person who does not have an artificial tooth can eat food. These artificial teeth are divided into dentures that can be inserted and removed from the gums and artificial teeth that are permanently fixed to the gums.

An implant is used to permanently fix the above artificial teeth to the alveolar bone of the gum. This implant includes an artificial tooth that penetrates the soft tissue of the gum and is directly inserted into the alveolar bone, And an abutment on which an artificial tooth is fixed.

Therefore, to fix the artificial teeth to the patient, the artificial root is inserted through the soft tissues of the gums and screwed securely to the alveolar bone. Then, the abutment portion is fixed to the upper part of the artificial root fixed to the alveolar bone by screwing. Finally, fix the artificial teeth that are made to the patient in the zone where they are attached to the artificial root.

Then, the artificial tooth is semi-permanently implanted by the implant made up of the artificial root and the abutment portion, so that it can serve as a natural tooth.

Here, there are different characteristics of the alveolar bone shape and the natural angle angle for each patient who performs the implant for the artificial tooth. Therefore, when fabricating the abutment area of the implant, the shape of the alveolar bone and the angle of the natural angle of the patient are thoroughly inspected in advance through radiography and computed tomography.

This is because an artificial tooth is coupled to the upper part of the abutment part and an artificial tooth is coupled to the lower part of the abutment part, so that the angle between the alveolar bone and the artificial tooth is determined by the angle formed by the upper part and the lower part of the support part.

However, even if the angle between the upper part and the lower part of the abutment part is carefully inspected beforehand in accordance with the condition of the alveolar bone and natural angle of the patient as described above, It is not possible to correct it unless it is immersed in a predetermined position and angle.

That is, since the angle between the upper and lower portions of the zone is fixed, it is impossible to change the angle. Therefore, there was no way to rebuild the abutment to compensate for the angled angle of the artificial root.

Also, since the angle formed between the upper and lower portions of the land portion is different for each patient, mass production is also impossible and the manufacturing cost is also increased.

As a result, the inventor of the present invention has proposed a dental implant capable of adjusting the angle of a land portion of Korean Patent Registration No. 10-1065924, as shown in FIG.

That is, in the patented technology, the angle adjusting means comprises a circular ball 31 formed in a spherical shape at the upper part of the connecting body 30, a notch 41 cut in the longitudinal direction on both sides of the rotating body 40, A ball groove portion 42 which is formed in an arc shape inside the lower portion of the rotary body 40 and into which the circular ball 31 is inserted while the cutout portion 41 is expanded, A bolt hole 43 and a screw hole 44 respectively formed on the other side of the rotating body 40 and a bolt hole 43 are screwed into one side of the rotating body 40 and screwed into the screw hole 44 to reduce the cut- And a fixing bolt 50 for fixing the rotating body 40 by pressing the circular ball 31 strongly from the ball groove portion 42.

However, in the above-described technology, the angle adjusting means is screwed to the bolt hole 43 and the screw hole 44 respectively formed on one side and the other side of the rotating body 40 and strongly pressed by the fixing bolt 50, The circular ball 31 can not be pressed sufficiently over time because it is squeezed indirectly without squeezing directly from both sides.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide an abutment which is inserted into a fixture immobilized on an alveolar bone, And the fastening member having the fastening portion corresponding to the threaded portion can directly press the outer circumference of the abutment to install the abutment on the fixture. Therefore, the fastening force is improved more than the conventional one, And to provide a dental implant capable of performing a dental implant.

According to an aspect of the present invention, there is provided a fixing device including a connecting member having a lower portion fixed to a fixture, a rotating member pivotally mounted on the connecting member, and a fastening member for fastening the connecting member and the rotating member, The connecting member may be provided at a lower end of the ball portion and may further include a margin portion protruding outward. The present invention provides an abutment for an implant.

In addition, the upper part of the connecting member includes a spherical spherical ball. The present invention provides an abutment for an implant.

In addition, the rotary member includes an incision portion that is incised downwardly, one side of which is opened, and a ball groove portion into which the spherical ball is inserted. The present invention provides an abutment for an implant.

It is also an object of the present invention to provide an abutment for an implant that is provided with a threaded portion on at least a part of the outer circumferential surface of the rotating member and at least a part of the inner circumferential surface of the tightening member has a fastening portion corresponding to the threaded portion .

Further, it is an object of the present invention to provide an abutment for an implant, wherein the tightening member is a hexagonal nut.

Further, the connecting member is provided so as to be tapered downwardly as it goes downward. The present invention provides an abutment for an implant.

According to the present invention, it is possible to freely adjust the angle between the fixture and the crown to fit the patient, while the fastening member having the inside fastening portion directly presses the screw portion, so that the fastening force is stronger than that of the prior art, .

Further, after the implant treatment, it can be maintained over a longer period of time than before, and there is an advantage that the economic burden on the patient can be reduced.

In addition, there is an advantage that a more effective structure and a mass production can be achieved for each part while having a simpler structure than the conventional one, and a ripple effect can be expected in dental procedures.

In addition, the present invention includes a margin portion protruding outwardly to the connecting member, so that food or saliva can be prevented from penetrating into the gap formed between the crown and the gum after the implant is mounted, Inflammation in the gums can be prevented.

1 is an exploded perspective view showing a conventional technique.
2 is an exploded perspective view illustrating a dental implant according to an embodiment of the present invention.
3 is a cross-sectional view illustrating a dental implant according to an embodiment of the present invention.
FIG. 4 is a sectional view showing a state where a dental implant according to an embodiment of the present invention is mounted on an alveolar bone.
5 is an exemplary cross-sectional view of a dental implant according to an embodiment of the present invention, which can be mounted on the alveolar bone at various angles.
6 shows a connecting member of a dental implant according to another embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, "includes." Or "have." , Etc. are intended to designate the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, may be combined with one or more other features, steps, operations, components, It should be understood that they do not preclude the presence or addition of combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It will be appreciated that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 2 is an exploded perspective view illustrating a dental implant according to an embodiment of the present invention, FIG. 3 is an assembled cross-sectional view illustrating a dental implant according to an embodiment of the present invention, and FIG. Sectional view showing a state where the dental implant according to the example is mounted on the alveolar bone.

2 to 4, a dental implant 100 according to an embodiment of the present invention includes a fixture 110 to be inserted into an alveolar bone, And an abutment 120 to which a crown T is fixed.

The abutment 120 proposed in the present invention is characterized in that the abutment 120 has a spherical ball 131 having a spherical upper part and a lower part fixed to the fixture 110, And a threaded portion 143 formed on an outer periphery of the lower portion of the lower portion of the hollow portion 142. The threaded portion 143 is formed in an arc- And a fastening member 150 fastened to the connecting member 130 and the rotary member 140 and having a fastening portion 151 formed on the inner side corresponding to the threaded portion 143. [

The threaded portion 143 and the coupling portion 151 are screwed together to rotate the fastening member 150 at the lower outer side of the rotary member 140 so that the space between the cutouts 141 is reduced, Is strongly pressed directly from the ball groove portion 142 and fixed.

Further, the tightening member 150 may be a hexagonal nut having a fastening portion 151 formed on the inside thereof.

The connection member 130 is formed with an insertion portion 132 tapering downward toward the lower side and an insertion groove 111 corresponding to the lower portion of the upper portion of the fixture 110, (132) is pressed into the insertion groove (111).

The insertion section 132 and the insertion groove 111 are formed in an elliptical or polygonal horizontal section so that the insertion section 132 is prevented from rotating in the insertion groove 111 and moving.

The components of the dental implant 100 according to an embodiment of the present invention will now be described in detail.

The dental implant 100 proposed in the present invention is to implant a crown T which is an artificial tooth that functions as a natural tooth in the alveolar bone B inside the gum G. [

Therefore, the dental implant 100 proposed in the present invention includes a fixture 110 to be inserted into the alveolar bone B and a fixture 110 inserted into the upper part of the fixture 110 and having a crown T fixed And an abutment (120).

Particularly, the dental implant 100 proposed in the present invention has a stronger fastening force than the conventional one, and the angle formed by the fixture 110 and the crown T can be freely adjusted through the abutment 120, And has a structure that can be precisely fixed.

2 to 4, the dental implant 100 according to an embodiment of the present invention includes a fixture 110 screwed into the alveolar bone B through the soft tissue of the gum G, And an abutment 120 inserted through the upper portion of the fixture 110 and having a crown T secured thereon.

The abutment 120 also includes a connecting member 130, a rotating member 140, and a tightening member 150.

The abutment 120 includes a connecting member 130 fixed to the fixture 110, a rotating member 140 to which the crown T is fixed, and a tightening member 150 for pressing the bottom of the rotating member 140 The rotary member 140 is freely angularly fixed on the connecting member 130 using the fastening member 150. [

The abutment 120 includes a spherical ball 131 formed in a spherical shape at an upper portion of the connecting member 130, a cutout portion 141 cut on both sides of the rotating member 140 in the longitudinal direction, A ball groove 142 into which the spherical ball 131 is inserted while the incision 141 is expanded and a thread 143 formed along the outer circumference at the lower outer side of the rotary member 140, And a fastening portion 151 is formed in the tightening member 150 in correspondence with the threaded portion 143. Here, the screw portion 143 may be a male screw, and the fastening portion 151 may be a female screw.

In other words, the abutment 120 proposed by the present invention has a structure similar to that of the ball joint, and is connected to the abutment portion 141 through the action of the tightening member 150 that directly urges the cutout portion 141 and the cut- So that the angle formed by the member 130 and the rotary member 140 can be fixed.

2, at least two (2, 3, 4, 5, 6, etc.) of the cutout portions 141 are formed downwardly so that the spherical balls 131 are easily inserted into the ball groove portions 142 Make sure to spread out more than hemisphere.

5 is an exemplary cross-sectional view of the alveolar bone to which the dental implant 100 proposed in the present invention can be attached at various angles. In the present invention, the fixture 110 is shown in Figs. 5 (a) and 5 (b), the abutment 120 can be vertically created, so that the teeth can be arranged evenly.

Therefore, when the practitioner intends to perform the implant 100 on the patient, the angle formed between the connecting member 130 and the rotary member 140 through the abutment 120 proposed in the present invention is changed to the shape of the alveolar bone of the patient, It is not necessary to fabricate the abutment 120 having different angles for each patient at all.

Accordingly, not only can the operation of the implant 100 be very convenient, but also the patient's grievance caused by the operation of the implant 100 can be reduced. Since the abutment 120 proposed in the present invention can be mass-produced on a component-by-component basis, the productivity of the implant 100 can be improved.

Hereinafter, the operation of the present invention will be described in more detail through a procedure of implant 100.

First, the fixture 110 is fixed to the alveolar bone B of the gum G. At this time, since screws are formed on the outer circumferential surface of the fixture 110, they may be fixed to the alveolar bone B by screwing.

3, the connecting member 130 is inserted and fixed into the fixture 110 in a state where the connecting member 130 and the rotating member 140 are coupled through the upper inside of the fixture 110 .

At this time, the connecting member 130 is formed with the insertion portion 132 tapering downwardly toward the lower side and the insertion groove 111 tapering downward toward the lower side of the upper portion of the fixture 110 corresponding to the insertion portion 132, (132) is pressed into the insertion groove (111).

If the fixture 110 and the connecting member 130 are fastened by screwing, the equipment is provided separately, which is troublesome and time-consuming to attach and detach, which is inconvenient and the angle can not be precisely adjusted.

Accordingly, as shown in FIG. 3, since the connection member 130 is inserted into the fixture 110 by pressing in the direction of 'A', it can be easily mounted, and the user can press the food naturally when he chews the food or closes his mouth. So that it can be mounted more efficiently than the conventional screw type fastening.

The horizontal section of the insertion portion 132 of the connection member 130 and the insertion groove 111 of the fixture 110 is formed in an elliptic or polygonal shape so that the insertion portion 132 is engaged and rotated in the insertion groove 111 To prevent it from moving left and right.

The rotary member 140 has a truncated conical shape and includes a cutout 141 formed by cutting downward and opened at one side and an arc-shaped cutout formed at the lower inside of the cutout 141, And a screw portion 143 formed along the outer circumference at a lower outer side thereof.

The angle of the rotary member 140 is adjusted after the connection member 130 is inserted and pressed into the fixture 110 together with the rotary member 140 as described above.

That is, the angle of the rotary member 140 on which the crown T is installed is adjusted to match the characteristics of the alveolar bone and the natural angle of the patient.

The tightening member 150 fastens the connecting member 130 and the rotary member 140 and the fastening portion 151 is formed on the inner side corresponding to the threaded portion 143.

Accordingly, the spherical ball 131 is inserted into the ball groove portion 142 while being expanded by the cutout portion 141 spaced apart by a predetermined distance, and the fastening member 150 is inserted from the upper portion of the rotary member 140 to the lower portion thereof, 143 are screwed to each other.

The threaded portion 143 and the coupling portion 151 are then screwed together to rotate the fastening member 150 at the lower outer side of the rotary member 140 so that the space between the cutouts 141 is reduced, Is directly and strongly urged from the ball groove 142 to be fixed.

The cutout 141 of the rotary member 140 is contracted so that the ball groove 142 of the rotary member 140 strongly presses the spherical ball 131 of the connection member 130, The rotational member 140 is fixed at the adjusted angle.

Then, a crown T may be placed on the upper portion of the rotary member 140 to fix it. Then, all of the implant operation of the implant 100 is completed.

Meanwhile, the tightening member 150 may be a hexagonal nut having a fastening portion 151 formed on the inner side thereof.

This makes it possible to reduce the manufacturing cost, to facilitate the purchase, and to reduce the manufacturing cost by using the generalized hexagonal nut, resulting in various economic advantages.

As described above, the dental implant 100 according to an embodiment of the present invention is configured such that the connecting member 130 and the rotary member 140 of the abutment 120 are tightened with the tightening member 150, The angle formed by the fixture 110 on which the connection member 130 is fixed and the crown T provided on the rotary member 140 can be set very conveniently.

When separating the connection member 130 from the fixture 110, the upper surface of the fixture 110 is supported by surrounding the lower portion of the concrete ball 131 in the form of a fork of the easy window using the leverage principle, the insertion portion 132 can be easily removed from the insertion groove 111 by pushing the end of the bar.

Therefore, the following effects can be expected from the dental implant according to the embodiment of the present invention.

Since the tightening member having the inner fastening portion directly presses the threaded portion while being freely adjustable to fit the angle of the fixture and the crown to the patient, it is possible to have a stronger fastening force than the conventional fastening member and to maintain the stability more stably.

Further, after the implant treatment, it can be maintained over a longer period of time than before, and there is an advantage that the economic burden on the patient can be reduced.

In addition, there is an advantage that a more effective structure and a mass production can be achieved for each part while having a simpler structure than the conventional one, and a ripple effect can be expected in dental procedures.

As described above, the inventors of the present invention have found that a screw is formed on the outer peripheral edge of a lower part of an abutment inserted into a fixture immobilized on an alveolar bone and a crown fixed on an upper part thereof, The abutment provided with the fastening portion corresponding to the abutment portion directly presses the outer circumference of the abutment and the abutment can be installed on the fixture, so that the bonding force is improved as compared with the prior art, Dental implants can be completed.

6 shows a connecting member of a dental implant according to another embodiment of the present invention.

Referring to FIG. 6, the connecting member 130 of the dental implant according to another embodiment of the present invention includes a spherical portion 131 and a spherical portion 131 provided at a lower portion of the spherical ball 131, A tapered portion 1323 provided at a lower portion of the margin portion 1321 and narrower in diameter toward the lower portion and a tapered portion 1323 formed at a lower portion of the tapered portion 1323 and formed in the interior of the fixture 110 And a connection thread 1325 for coupling to the threaded portion.

The basic configuration is similar to the connection member 130 shown in FIG. 2, which has been described in detail in the foregoing, and the difference from the connection member 130 shown in FIG. 2 will now be described.

The marginal portion 1321 of the connecting member 130 according to another embodiment of the present invention may be provided at a lower portion of the spherical ball 131 so that the lower end of the crown mounted on the rotary member can be supported It can serve as a margin.

More specifically, in the absence of the margin portion 1321, voids may be generated between the lower portion of the crown and the gum, and food or saliva may penetrate into the gap, thereby causing irritation of the patient's gums.

However, as described above, since the marginal portion 1321 protruding toward the outer side is provided, no gap is formed between the crown and the gum, thereby preventing inflammation from occurring in the patient's gums .

Further, since the connection member 130 is provided with the margin portion 1321, it can serve as a stopper for preventing the rotation member from being inclined by more than a predetermined angle.

This can prevent the rotation member 130 from tilting more than necessary when the doctor joins the rotation member 130 to the connection member inserted in the patient's gum and forms a path of the teeth .

As shown in FIG. 6, the shape of the margin portion 1321 of the embodiment may be such that the cross-sectional area increases from the upper portion to the lower portion, the cross-sectional area becomes maximum at the center, and the cross- .

The margin portion 1321 may be provided to support the lower portion of the crown, and the shape of the margin portion 1321 may vary according to the needs of the user. And this does not limit the scope of the present invention.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the essential characteristics of the invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: The dental implant proposed in the present invention
110: Fixture
120: abutment
130:
140: rotating member
150: fastening member

Claims (8)

A connecting member whose lower portion is fixed to the fixture;
A rotating member pivotally mounted on the connecting member; And
A fastening member for fastening the connecting member and the rotating member; Lt; / RTI >
Wherein the connecting member further comprises a margin portion provided at a lower end of the ball portion and protruding outward. The method according to claim 1,
Wherein the upper portion of the connecting member includes spherical balls formed in a spherical shape. 3. The method of claim 2,
Wherein the rotary member includes a cut-out portion having one side opened downward and a ball groove portion into which the spherical ball is inserted. The method according to claim 1,
Wherein at least a part of an outer circumferential surface of the rotating member is formed with a threaded portion,
Wherein an engaging portion corresponding to the threaded portion is formed at least on an inner peripheral surface of the tightening member. 5. The method of claim 4,
Wherein the tightening member is a hexagonal nut. The method according to claim 1,
Wherein the connecting member is provided so as to be tapered toward the lower side. An implant abutment according to any one of claims 1 to 6,
And a fixture to be inserted into the alveolar bone. 9. The method of claim 8,
Wherein the fixture is provided with an insertion groove tapering downward toward the lower side,
And the abutment is engaged in an insertion manner in which the abutment is pressed into the insertion groove.

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