KR20140088301A - Substructure Improved ImplantFixture - Google Patents

Abstract

The present invention relates to an implant fixture with an improved lower structure. The present invention reduces frictional heat by decreasing a contact area between the fixture and an alveolar bone when the fixture is implanted by forming a screw part with a screw thread. A concave groove (3) with an arc shape is formed on a top part (2) of the lower side of the fixture. A vertical groove (8) is formed on the lower side (4) of the fixture.

Description

       [0001] Substructure Improved ImplantFixture [

       The present invention relates to a mutual gripping implant fixture of a lower upper groove outer circumference and a lower groove inner circumference.

       In the drilling for implant fixture, it is possible to perform the process of implanting with less alveolar bone cancellation than alveolar bone cancellation to alleviate alveolar bone damage, and to provide a bonding force with the alveolar bone so as to have a more stable and firmly inserted state at the initial stage The present invention relates to an implant fixture configured to mutually grasp a concave groove in an upper portion of an implant fixture and a groove in a lower portion of the implant fixture.

In the case of a missing tooth, a bridge was used in which a denture was inserted or a surrounding portion of a tooth was used as a column and a missing portion was covered with a metal or the like. However, such a procedure has several problems, such as a denture or a bridged artificial tooth having a weak chewing force and adversely affecting surrounding teeth.

As a result, the implant procedure was introduced as a treatment of the developed dental care. Such an implant procedure forms an artificial tooth root on the alveolar bone and combines the artificial teeth prepared to be similar to the actual teeth using the tooth, thereby obtaining the effect that the patient uses the actual tooth.

In the above-described implant procedure, an implantation groove is formed by using a tool such as a drill to insert a fixture into an alveolar bone missing teeth, a fixture is inserted into the implantation groove, an abutment (abutment) Implant procedure is completed by combining artificial teeth with the abutment (abutment).

In the above-described implant procedure, the fixture immobilized on the alveolar bone performs a root function of the tooth, and the abutment (abutment) becomes a connection structure for integrating the artificial tooth and the fixture.

The fixture and the abutment constitute an implant structure for firmly fixing the artificial tooth in a correct position. The implant structure is mainly made of a metal material such as titanium, which has excellent physical / chemical rigidity.

Meanwhile, until the fixture is firmly seated in the alveolar bone after the fixture is fixed, the gingium is covered again (submerged type) for a few months while the fixture is inserted, or the outer side of the exposed fixture is closed by the cover screw The abutment is placed on the fixture that can cut the gingiva once the fixture is fully seated, or remove the cover screw and form an artificial tooth.

Since the alveolar bone of the human body is composed of the cortical bone on the outer side and the reticular bone on the inner side thereof in the above-described implant procedure, the weak mesh bone on the inner side is protected by the hard cortical bone on the outer side. Accordingly, So that the outer diameter of the fixture itself is enlarged and formed so as to be stably and firmly embedded.

However, when the fixture is composed of plain (plain) threads, the fixation force is weak after implantation. Even if a considerable time has elapsed after completion of the implant procedure, incomplete osseointegration, or excessive osseointegration after osseointegration, The fixation force is weak, so that the screw portion of the fixture is released from the alveolar bone at the time of chewing, so that the re-operation must be performed.

The present invention has been made to solve the above problems.

Thus, an implant-specific fixture was required.

The entire body of the fixture is formed in a slightly tapered circumferential shape from the upper side to the lower side and has a groove recessed right downward and formed as a lower part and a lower part formed in the outer threaded portion and a groove is formed in the lower center inside of the lower part, And an inner threaded portion formed with an inner groove or a cutting edge on the inner lower side, the inner and outer peripheries of the fixture are pulled by each other and gripped.

When drilling on the surface of the alveolar bone for placement, the drilling is performed only to the top of the bottom of the fixture, and the bottom of the fixture groove is trapezed using the bone-trephine-style dedicated ball without drilling, thereby reducing damage and elimination of the alveolar bone. In addition, after the implant fixture is placed, the initial fixation force is exerted by increasing the osseointegration area between the alveolar bone and the alveolar bone by the screw portion of the lower groove. The object of the present invention is to provide an implant fixture having a stable and strong bonding state with the alveolar bone by forming a structure having a high mating strength with the alveolar bone so as to have a resistance structure even when severe pressure is applied.

Another object of the present invention is to provide a dental prosthesis that can absorb an excessive load on an alveolar bone in which a fixture is implanted and has a dedicated buffered abutment that can be selectively used in size so as to provide a more stable and stable implantable state, To provide a fixture.

     The present invention relates to an implant fixture comprising an upper portion (1), a lower portion (2), and a lower portion (4) (ARC) concave grooves (3) are formed from one-piece fixtures to 2, 3, 4, 5, and 6 pieces, and each implant fixture A screw portion having a cutting edge 6 formed on the outer periphery of the lower portion 4 and a screw portion formed on the lower middle portion of the lower portion of the fixture lower portion 4, A vertical groove 8 is formed in parallel with the outer circumferential surface and an inner screw portion 9 having an inner circumference 10 and a cutting edge 6 formed thereon and a tapered groove 9 for coupling the abutment A hexagonal groove 16 to which the tool is coupled, and a fixing screw groove 17 to which the abutment (abutment) fixing screw is fixed.

     The various numbers of concave grooves 3 around the outer periphery of the lower upper part 2 are formed by each of the implant fixtures of angles of 1, 2, 3, 4, 5, 6, And the outer thread portion 5 is formed from the upper portion 1 of the fixture 1 to the lower end portion 4 of the fixture 1 so as to form a concave groove 3 of the concave groove 3, A vertical groove 8 is formed parallel to the outer circumferential surface at a lower middle inner lower end of the lower portion of the lower end of the implant fixture 4 to form an inner circumference 10 or a cutting edge 5 In order to form the implant fixture into the grooved groove by forming an inner screw thread 9 and increasing the fixing force of the outer screw thread 5 of the fixture and the inner shaft 10 or the inner screw thread 9 by mutual pulling, It is necessary to form a groove on the seating surface. A drill burr 11 and a special burr-style threader 13 having a saw blade-like cutting edge at the lower end thereof are used.

       The implant fixture is fixed to the lower end post 11 of a dedicated packaging container 18 for packaging using the vertical grooves 8 at the lower end of the lower portion 4 of the implant fixture body, And a cover groove (19) for fixing the cover screw is used.

As described above, according to the present invention, there is provided a threaded portion formed with threads on the outer periphery of a fixture body having various numbers of concave grooves around the upper and lower outer peripheries of the fixture in a vertically tapered circumferential outer shape, Reduce friction area by reducing contact area between bone and fixture. On the other hand, with the structure that resists excessive pressure and lateral pressure after bone fusion after implantation, the circumferential body at the upper end of the upper screw of the fixture seals the concave groove in the lower part, and penetrates into the saliva and food debris and bacteria .

The lower part of the fixture body has a vertical groove formed parallel to the outer circumferential surface from the lower center of the lower part toward the inner middle part and a screw part formed with a cutting edge on the outer circumference and inner circumference or inner circumference of the fixture body from the upper part to the lower part, And the inner screw and the inner screw thread of the implant fixture are fixed to the initial fixation and the unexpected load when the implant fixture is placed.

Various constructions for prevention of rotation are used to fix the fixture to the alveolar bone and to maintain the stable and stable state of the bone as the fusion of the bone is started. As a result, There is an effect that it is possible to provide a fastening force with the alveolar bone so that there is no loosening due to rotation or reverse rotation of the fixture.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an example of a state in which an implant fixture lower upper circumferential concave groove and a lower inner groove groove are used according to the present invention;
FIG. 2 is an enlarged view of a main part of an upper outer circumferential concave groove at the lower part of the implant fixture according to the present invention. FIG.
3 is a front sectional view of the outer fixture screw portion of the implant fixture according to the present invention and the inner thread portion of the inner groove at the lower end thereof.
FIG. 3A is a front cross-sectional view of an inner circumferential mutual grasping structure of an outer fixture screw portion of an implant fixture and an inner groove of a lower end according to the present invention as another embodiment; FIG.
4 is a front view of an inclined drill bar according to the present invention.
5 is a front view of a trepidator according to the present invention.
FIG. 6 is a front view of an implant fixture body according to the present invention, in which a dedicated container for packaging using a vertical groove at a lower lower end of the body is combined.
6A is an enlarged front view of a cover groove 19 for fixing the fixing screw portion of the cover screw so that the cover screw can be fixed by being placed on the inside of the package case cover.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an example of the use state of an implant fixture having a configuration of a lower upper groove outer periphery and a lower inner groove grasping structure according to the present invention; FIG.

 To this end, referring to Figure 1,

 The overall shape of the implant fixture is such that the screw portions of the upper and lower portions 1 and 4 are inclined downwardly and the screw portion of the upper portion 1 prevents the entry of impurities and bacteria, (3) Resistance to fixture loosening after osseointegration in the form of an implant fixture stitch structure. A cutting edge (6) is formed on the screw part of the outer circumferential lower part (4) (4) has a vertical groove (8) formed in parallel with the outer circumferential surface from the lower middle of the lower part (4) toward the inner middle part, forming a groove with a cutting edge (6) When the fixture is placed in the groove formed after drilling with the dedicated drill burr 12 fitted to the fixture at the time of fixing the fixture, the concave groove 3 itself acts as the cutting edge 6 in the lower portion 4) Outer thread (5) Since the cutting edge (6) is self tapping And can reduce the frictional heat between the fixture, it is possible to implant a desired

After fixture, the fixture outer threaded portion 5 and the inner threaded portion 9 are mutually grasped to each other, and are firmly fixed to the initial fixation and unsteady load, and after the fusion of the bone, they are firmly fixed to the lateral pressure and the reverse rotation.

2 is an enlarged view of a main part of the recessed groove 3 of the outer screw portion 5 of the lower portion 2 of the lower fixture according to the present invention.

Referring to FIG. 2, the implant fixture has various numbers of concave (ARC) grooves 3 formed in the lower part 2 of the inclined outer thread 5.

The recessed grooves 3 of the lower portion 2 are self-tapping when the implant fixture is placed with the cutting edge 6 acting as a cutting edge. The ARC grooves 3 are formed in an arc shape After one to six implant fixtures with semicircular shapes, bone fixation is performed to firmly fix lateral pressure and reverse rotation.

<Other Embodiment 1>

Referring to FIG. 2, one recessed groove 3 is formed in the circumference of the outer threaded portion 5 of the lower portion 2 of the implant fixture to prevent rotation of the implant fixture after implantation into a portion to be inserted at the time of implantation, I suggest fixing.

<Other Embodiment 2>

Referring to FIG. 2, one recessed groove 3 is formed on the circumference of the outer thread portion 5 of the lower portion 2 of the implant fixture at 180 degrees on both sides of the natural tooth root, Prevents fixture rotation, and provides a more robust fixation.

 <Other Examples 3, 4, 5, 6>

2 shows an example of an implant fixture having an implant fixation structure in which the outer periphery of the lower part 2 of the implant fixture and the inner groove 8 of the lower part 4 of the implant fixture according to another embodiment of the present invention to be.

3 is a front sectional view of the fixture outer thread portion 5 and the inner thread portion 9 of the inner groove 8 at the lower end according to the present invention.

And an inner thread portion 9 formed inside the fixture lower portion 4 by forming a vertical groove 8 in parallel with the outer peripheral surface from the lower middle portion toward the inner middle portion and forming an inner periphery of the groove 8, A cutting edge 6 is formed on the cutting edge 6 from the lower end of the outer circumferential thread portion 5 of the circumferential lower portion 4 and the inner circumferential thread portion 9 of the inner groove 8 at the lower end of the fixture body lower portion 4, And the cutting edge 6 is self-tapping, so that it can be placed smoothly. After the fixture, the fixture outer threaded portion 5 and the inner threaded portion 9 are grasped by each other, .

FIG. 3-1 is a front sectional view of the fixture inner thread 5 and the inner groove 8 of the lower end according to the present invention.

Referring to the drawings, an implant fixture having an outer periphery screw portion 5 and an inner periphery 10 of the inner fixture 8 have a mutual grasping structure. The implant fixture is composed of a lower outer thread portion 5 and an inner periphery The fixture lower outer threaded portion 5 formed with the cutting edge 6 and the inner periphery 10 of the groove 8 at the lower end inner side of the lower portion 4 are provided with a fixture outer threaded portion 5, And is constructed so as to be able to withstand the initial fixation, lateral pressure and initial unsteady load due to the mutual pulling in the lower part (4) of the fixture body.

The recessed groove 3 of the lower part 2 of the present invention resists the fixture loosening after bone fusion and the threaded part 13 on the inside and the lower part of the lower part grips each other by pulling and is resistant to initial fixation and lateral pressure, Implant fixtures configured to do so.

 Further, in the upper part, a semicircular groove (14) on which an abutment is seated is formed with a hexagonal groove (16) into which a mechanism is inserted and a fixing screw groove (17) in which a fixing screw is seated.

Such a configuration has the effect of reducing the contact area and frictional heat at the time of implantation, but widening the surface area of the fixture to be bonded after bone fusion, so that the fixture is more firmly fixed after implantation.

4 is a front view of an inclined (7) drill burr 12 according to the present invention.

FIG. 4 is an enlarged view of a drill burr 12 having a drill bit 12 which is slightly inclined with a stopper in a burring portion and a stopper in a lower portion of the drill burr 12 of the implant fixture, .

5 is a front view of the trepidor 13 according to the present invention.

FIG. 5 is a perspective view of the implant fixture according to the present invention. FIG. 5 is an exploded perspective view of the implanted fixture of FIG. Fig. 7 is an enlarged view of a trepidator 13 forming a tapered portion.

 6 is a front view of the post 11 of the lower end of the dedicated packaging container 18 according to the present invention in which the lower end groove 8 of the implant fixture is coupled.

Referring to the drawings, FIG. 6 is a side view of a package case according to the present invention, in which the inner periphery of the groove 8 at the center inside of the lower end of the implant fixture is inserted into the post 11 at the lower end of the packaging case.

6-1 is an enlarged front view of a cover groove 19 for fixing the fixing screw portion of the cover screw so that the cover screw can be fixed by being placed on the inside of the package case cover.

The implant fixture is applied to both internal and external fixtures of the submerged type and the exposed fixture.

That is, in the case of the submerged type, the fixture is placed in the grooved groove, the cover screw is joined, and the gingiva is completely covered and sealed. After that, when the alveolar bone is regenerated and restored, the gingiva is cut again. After the abutment (abutment) is installed, the restoration of the prosthesis is completed and the operation is completed.

In the case of the exposed fixture, the fixture is placed in the grooved groove, the cover screw is joined to the gingiva, and if the bone fusion is performed thereafter, the cover screw is removed by the second operation, and the abutment (abutment) And the operation is completed.

The overall shape of the implant fixture is an upper part 1 and a lower part 2 and a lower part 4. The outer screw part 5 of the implant fixture is inclined downwardly (7). The upper part 1 has impurities and bacteria The outer periphery of the lower portion 2 and the outer periphery of the outer periphery of the lower portion 4 are formed with a threaded portion in the circumference for prevention of intrusion and various numbers of concave grooves 3 around the outer thread portion 5, (8) is designed so as to be able to withstand the mending pressure of the inner peripheral thread or the inner peripheral thread of the outer threaded portion (5) and the groove (8) on the inner side of the lower portion (4).

1: upper part 2: lower part
3: concave groove 4; bottom
5: Outer thread 6: Cutting edge
7; Tilted 8; home
9: inner peripheral threaded portion 10: inner periphery 11; Bottom post 12; Drill bar 13: trefifier 14;
15; Tapered groove 16: hexagonal groove
17; A fixing screw groove 18; Packing container
19; Cover groove

Claims (4)

     The present invention relates to an implant fixture comprising an upper portion (1), a lower portion (2), and a lower portion (4) (ARC) concave grooves (3) are formed from one-piece fixtures to 2, 3, 4, 5, and 6 pieces, and each implant fixture A screw portion having a cutting edge 6 formed on the outer periphery of the lower portion 4 and a screw portion formed on the lower middle portion of the lower portion of the fixture lower portion 4, A tapered groove 15 for joining the abutment to the inside of the upper portion is formed by forming the vertical groove 8 in parallel with the outer circumferential surface and forming the inner circumference 10 and the cutting edge 6, A hexagonal groove (16) to which a tool is coupled, and a fixing screw groove (17) to which an abutment fixing screw is fixed. Inner groove grooved implant fixture A vertical groove 8 is formed in parallel with the outer circumferential surface in the middle from the lower inner center lower end of the lower portion of the implant fixture 4 to form an inner screw portion 9 having an inner circumference 10 and a cutting edge 5, Wherein the threaded portion (5) and the inner peripheral thread (10) or the inner threaded thread portion (9) are mutually trained to increase the clamping force.
The method according to claim 1,
A groove is formed in the seating surface before the implant fixture is inserted into the grooved groove. A dedicated drill bur 11 having a short body and a saw blade cutting edge are formed at the lower end of the groove, And a special burr-style burr-style burr is formed. The method according to claim 1,
The implant fixture is fixed to the lower end post 11 of the dedicated packaging container 18 for packaging using the vertical grooves 8 at the lower end of the lower portion 4 of the implant fixture body, And a cover groove (19) for fixing the upper and lower upper grooves.

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