WO2010090482A2

WO2010090482A2 - Implant fixture having improved implant constitution

Info

Publication number: WO2010090482A2
Application number: PCT/KR2010/000744
Authority: WO
Inventors: 이도상
Original assignee: Lee Do Sang
Priority date: 2009-02-09
Filing date: 2010-02-05
Publication date: 2010-08-12
Also published as: CN102307538B; WO2010090482A3; CN102307538A

Abstract

The present invention relates to an implant fixture which enables a smoother implantation process corresponding to the condition of an alveolar bone and has improved implant constitution by improving a thread surface structure providing implant coupling force with an alveolar bone for a more stable and solid implant condition than the initial stage. To this end, the present invention discloses an implant fixture implanted inside an implant groove formed on an alveolar bone by forming a screw part on the outer surface of a fixture body. A functional protrusion is formed on the screw part with one or more radial points of the outer surface of the fixture body. The functional protrusion is configured for smooth insertion during implantation and to prevent reverse rotation after implantation by being formed to have an upward slope from front to rear in the rotation direction during implantation.

Description

Implant Fixtures with Improved Flush Configuration

The present invention relates to an implant fixture having an improved buried configuration.

In detail, the present invention, according to the condition of the alveolar bone can be carried out more smoothly, and the screw surface to provide a fastening force with the alveolar bone to have a more stable and alert fastening state according to the immediate load after the initial fastening An implant fixture having an improved buried configuration made by improving the structure.

In addition, the present invention warns and closes the entrance of the grooved groove formed in the alveolar bone for the endorsement, suggesting a configuration that can be almost integrated with the fixture and alveolar bone when the alveolar bone is regenerated after the alveolar bone to produce a more stable and solid manner The present invention relates to an implant fixture having an improved implant configuration, which has a beautiful appearance after the procedure.

In the case of missing teeth, a conventional method of fitting a denture or using a peripheral tooth as a pillar to cover the missing part with metal was performed.

However, such a procedure has a number of problems, such as a false teeth or bridges artificial teeth chewing food and adversely affects the surrounding teeth.

As a result, an implant procedure has emerged as a procedure of advanced dental care.

This implant procedure is to create the artificial bone roots of the alveolar bone, by using the combined artificial teeth made similar to the actual teeth to obtain the effect of the patient using the actual teeth.

The implantation process is used to form a implantation groove using a tool such as a drill in order to implant the fixture in the alveolar bone missing teeth, and after implanting the fixture inside the implantation groove, combine the abutment with the abutment, The implant procedure is completed by combining artificial teeth.

Fixtures embedded in the alveolar bone during the implantation process as described above to perform the root function of the teeth, the abutment is a connection configuration to integrate the artificial teeth and fixtures. The fixture and abutment become an implant structure for firmly fixing the artificial tooth in place, and such an implant structure is mainly made of a metal material such as titanium having excellent physical / chemical stiffness.

On the other hand, until the fixture is firmly seated in the alveolar bone, the gingival is again covered for several months with the fixture embedded (submerged type) or the outside of the exposed fixture is closed by a cover screw ( Exposed type), fixture fully sleeping

When the grip is held, the abutment, or abutment, is placed on the fixture, and the prosthesis is cut to remove the gingiva, or to remove the cover screw again and to form an artificial tooth.

Since the alveolar bone of the human body is made of the outer cortical bone and the inner reticular bone in the implant procedure as described above, the outer cortical bone is protected by the outer cortical bone. At the point of contact with the more dense pitch and the outer diameter of the fixture itself is expanded to form a stable and firmly fed.

However, such a fixture is composed of smooth threads, which are weak in the initial fixation force, and if a considerable time passes after the implantation or the completion of the implant procedure, or if a fine procedure mistake occurs, the screw of the fixture is loosened from the alveolar bone and then retreated. The problem arises that you need to do this.

In addition, since the implantation of the fixture as described above should form a grooved groove in the alveolar bone by a drill or the like, irregular inner circumference and poor aesthetic appearance are observed around the entrance of the grooved groove.

Due to this irregular circumferential shape after implantation of the fixture or implantation procedure

Later, the screw portion of the fixture lowers the bonding force that is maintained with the alveolar bone, and at the same time, the recovery force when the gingiva and the alveolar bone are restored is poor and the problem of poor aesthetics is exposed.

In addition, even if the alveolar bone around the groove is regenerated, the fixture and the alveolar bone are coupled only by the screw thread, so when the force is applied to the implant caused a serious problem of shaking or falling out.

In particular, when the alveolar bone regeneration is not complete at the beginning of the procedure, the immediate load (force applied by the artificial force) acts a lot because of the external force, causing a lot of problems such as the whole implant shaking or falling out. It occurred a lot.

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

Accordingly, an object of the present invention is to provide a implant fixture having a more stable and robust implantation state with the alveolar bone by forming a configuration that has a high buoyancy force with the alveolar bone in the screw portion of the outer surface.

Another object of the present invention is to provide an implant fixture to add a configuration for firmly closing the opening of the alveolar bone to have a more stable and solid manner of the implant and at the same time beautiful appearance, and also to regenerate the alveolar bone At the end, the implant is almost integrated with the alveolar bone, providing a firm fixation force for another purpose.

In order to achieve the above object, the present invention has the following configuration.

The present invention, in the implant fixture is a screw portion is formed on the outer surface of the body to be embedded into the groove, the screw portion is formed with a function protrusion in the radial number of one or more points of the outer surface of the body, the function projection is rotated when the buried direction Is formed to have an upward inclination from the front to the rear toward the front is configured to prevent the reverse rotation after the insertion and smooth insertion during the breeding.

At this time, the functional projection is formed by forming a plurality of insertion protrusions arranged in contact with the inner circumferential surface of the implantation groove during implantation. In particular, the functional protrusion may be configured to be coupled to the solid cortical bone and reticular bone of the alveolar bone formed of the body portion.

In order to achieve the above object, the present invention, in the implant fixture which is threaded on the outer surface of the body to be embedded into the groove, the end portion exposed to the outside of the groove after the implantation is extended to the outside of the inlet of the groove The expansion cover part is formed to close the, the expansion cover part is formed integrally with the body or formed separately to have a central fastening hole is configured to be combined with the body.

In addition, the expansion cover part is configured in the form of a mesh formed with a plurality of through holes.

In addition, the expansion cover portion is formed extending in the front and rear narrowing direction side than the other teeth side

And, it is configured to be press-bonded to the alveolar bone in a state of bending the extension during the procedure.

As described above, the present invention can be carried out a more smooth manner of the buried process by the functional projection formed on the threaded portion of the outer surface, at the same time does not reverse rotation to withstand the immediate load after the initial buried coupling, and also has passed a considerable time Afterwards, the effect of maintaining a more stable and firm fixing force in the alveolar bone is obtained.

In addition, the present invention is closed by the inlet of the alveolar bone groove by the expansion cover portion formed on the outer surface to restore the alveolar bone and gingiva more stable and firmly to maintain a more stable and solid fastening state, and at the same time the appearance Maintained beautifully has the effect of improving the satisfaction of the procedure.

In particular, the present invention is formed by expanding the cover portion in the form of a mash, and extending in the direction of the front and rear narrowing (cheek and tongue) than the other side of the side is bent during the procedure to be fixed in the state fitted in the alveolar bone, the initial instant load Excellent opposition force, and after the alveolar bone regeneration, the implant is almost integrated with the alveolar bone, that is, the stenosis state is able to maintain a very stable fixation state.

1 is an exemplary front view of an implant fixture according to the present invention.

2, 3 is an enlarged view of the main part of the implant fixture according to the present invention

4 is an exemplary state of use of the implant fixture according to the present invention.

5 illustrates another embodiment of the present invention.

6 is an exploded view of the implant fixture of FIG.

7 and 8 is an exemplary view showing another embodiment of the present invention.

9 is a plan view of the expansion cover of FIG.

10 and 11 is a state of use of another embodiment of the present invention.

(Explanation of symbols for the main parts of the drawing)

10: body 20: screw part

30: Function protrusion 31: Insertion auxiliary protrusion

40: expansion cover 50: abutment

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

1 is a front view illustrating an implant fixture according to the present invention, and FIGS. 2 and 3 show the present invention.

3 is an enlarged view of an essential part of an implant fixture according to the present invention, and FIG. 3 is an exemplary view illustrating a state of use of the implant fixture according to the present invention.

Referring to the drawings, the implant fixture according to the present invention is formed of a body 10, the threaded portion 20 formed on the outer surface of the body (10). It is well known that the fixture of such a configuration is manufactured in the form of a bolt as a whole.

In the implant fixture as described above, one or more functional protrusions 30 are formed on the screw portion 20.

At this time, the functional projection 30 is formed in a radial number of one or more points of the body 10 formed in a substantially cylindrical shape, preferably formed at equal intervals in the radial three points of the body 10.

More specifically, the function projection 30 is a wedge-shaped configuration having an upward inclination from the front to the rear side assuming the direction of rotation when the fixture is buried.

That is, such a function protrusion 30 rotates the body 10 and is inserted smoothly to the front side when inserted into the alveolar bone 1, and the reverse end of the rear upwards is in the form of barbs of the fishing needle for reverse rotation. As a configuration to prevent the reverse rotation by performing the hook function.

At this time, the rear side performing the hook function of the function protrusion 30 may be formed while maintaining the acute angle of the functional protrusion 30 and the threaded portion 20 or less as shown in FIG. Alternatively, as shown in FIG. 2B, a predetermined depth toward the threaded portion 20 at the boundary point between the functional protrusion 30 and the threaded portion 20 is shown.

It can be configured to form a recessed groove to prevent the reverse rotation function.

In particular, the functional protrusion 30 as described above is coupled to the hard cortical bone and the reticular bone of the alveolar bone 1, the fixing force of the fixture most of the screw portion 20 formed in the body 10 to reduce the material when manufacturing the fixture It is formed in the section.

In addition to the above configuration, the upper end of the body 10 is formed with an expansion cover part 40 for closing the inlet of the alveolar bone groove 2 after fixture implantation.

In particular, the expansion cover portion 40 is formed at the end exposed after the body 10 is inserted into the alveolar bone groove 2, it is configured in the form of a flange having an outside diameter.

The expansion cover part 40 is inserted into the alveolar bone 1 and then closes the entrance of the recess groove 2 irregularly formed by a drill or the like to pressurize the periphery so that the alveolar bone 1 and the gingiva are uniformly restored. Configuration.

Reference numeral 50 in the figure is a cover screw for closing the exposed outer surface of the fixture after the implantation. The cover screw 50 at this time is applied to the submerged type during the procedure. That is, the cover screw 50 is fixed and then completely covered with the gingival opening, and after the restoration of the alveolar bone, the gingival is incised again, and the cover screw 50 is removed as a second procedure and the abutment (abutment) is replaced instead. After installation, the prosthesis will be created to complete the procedure.

That is, in the present invention, if the cover screw 50 is applied after the fixture 10 is embedded, the submerged type of treatment can be performed, and if the abutment tooth 60 described below is applied instead of the cover screw, the exposed screw can be exposed.

Type of surgery can be done in parallel.

Therefore, in the above embodiment, only the cover screw is shown as an embodiment, and the abutment can be applied to the abutment.

5 and 6 illustrate another embodiment of the present invention.

Referring to the drawings, the implant fixture of another embodiment illustrates that the expansion cover portion 40 of the original embodiment can be configured to be combined separately. At this time, the expansion cover portion 40 is configured to be formed inside the hollow to be fitted to the outer peripheral surface of the upper end of the body 10. In addition, the expansion cover part 40 is pressurized by the abutment 60 which is fitted to the upper body 10 after being fitted to the body 10 due to the purpose of being detachable from the body 10, the body 10 It is possible to maintain a fixed state between the abutment teeth (50).

In this embodiment, the cover screw 50 may be applied instead of the abutment 60 to implement a submerged type procedure. In this embodiment, since the initial fixing force, that is, the force according to the immediate load, is strong according to the thread shape of the fixture 10, the abutment may be installed directly, and an artificial tooth prosthesis may be immediately installed upon the procedure.

7 and 8 are exemplary views of a fixture showing another embodiment of the present invention, showing an integrated expansion cover part and a separate expansion cover part.

That is, the extension portion 43 is formed in the narrowing (cheek and tongue) direction in the expansion cover portion 40, and the plurality of through-holes 42 are formed on the extension portion 43 is configured in the form of mash. Accordingly

It is also possible to bend the extension portion 43 outside the expansion cover portion downward.

In the case of the detachable type, as shown in FIG. 9, the center fastening hole 41 is formed separately to be coupled to the upper end of the fixture body 10. In this case, the expansion cover is directly formed into a mesh of a mesh shape. You can also configure wealth.

The expansion cover part 40 is an extension part 43 which extends the length of the front and rear narrowing (cheek and tongue) more than the other side of the side in order to facilitate the installation during the procedure and the narrowing of the alveolar bone during alveolar bone regeneration. To form.

In this case, in the case of the integral type, the extension part 43 may be bent downward and compressed to the alveolar bone during the procedure as shown in FIG. 10. In the case of the detachable type, the fixture 10 may be bent in the narrowing direction after bending the extension part as shown in FIG. When placed on the end is pressed into the alveolar bone is combined. In this case, as the coupling means, a cover screw 50 or an abutment (abutment) may be applied as in the conventional procedure.

At this time, the grooved groove outside of the alveolar bone is completely closed, and the alveolar bone is regenerated later, so that it is also filled in the through-hole 42 of the mesh-shaped expansion cover part 40 in the form of a mesh, so that the alveolar bone becomes narrowed and the fixing force is improved. do. In this case, the prosthesis may be formed by leaving the expanded cover part 40 in the form of a mash after the procedure, but in the case of the detachable type, the healing state is checked during the second procedure. If the condition is poor, only the expansion cover part is removed and the prosthesis is formed. You may.

In the above-described embodiment of the present invention, only preferred embodiments of the present invention are described, and the technical scope of the present invention is not limited. That is, the present invention may be modified so that the pitch of the thread is gradually narrowed from the lower side to the upper side. In addition, the present invention is limited to the implant fixture for alveolar bone implantation, but may be applied to the implant fixture used in orthopedic surgery, and various modifications are possible within the technology. It is to be understood that such modifications fall within the scope of the present invention.

Claims

In the implant fixture in which the threaded portion 20 is formed on the outer surface of the body 10 to be embedded in the recess 2,

The screw portion 20 is formed with a functional protrusion 30 in the number of radially one or more points of the outer surface of the body 10, the functional protrusion 30 is inclined upward from the front to the rear side in the direction of the rotation when buried. It is formed to have an implant fixture having an improved buried configuration, characterized in that configured to prevent the reverse rotation after insertion and smooth insertion during the buried.
The implant of claim 1, wherein the functional protrusion 30 is formed in a section coupled to the alveolar bone 1 and the cortical bone and the reticular bone of the threaded portion 20 formed in the body 10. Fixture.
In the implant fixture in which the threaded portion 20 is formed on the outer surface of the body 10 to be embedded in the recess 2,

An extended cover part 40 is formed at the end portion exposed to the outside of the groove 2 after the planting to extend outward to close the inlet of the alveolar bone groove 2.

40 is formed integrally with the body (10) or formed separately to have a central fastening hole 41 is implant fixture having an improved buried configuration, characterized in that coupled to the body (10).
4. The implant fixture of claim 3, wherein the expansion cover part is in the form of a mesh in which a plurality of through holes are formed.
The method of claim 4, wherein the expansion cover portion 40 is formed to extend in the front and rear narrowing direction longer than the other side of the side, bend the extension portion 43 during the procedure is characterized in that the compression bonding to the alveolar bone Implant fixtures with built-in implantation.