KR101435551B1 - Separated type healing abutment - Google Patents

Abstract

Disclosed is a healing abutment used for an implant operation, more particularly, to a separating type healing abutment capable of performing an implant operation customized to oral environment of individual teeth and suitable to be used universally in various types of fixtures. The present invention provides the separating type healing abutment including: a coupling tap having a shape corresponding to a shape of a fixture inserted into an alveolar bone and coupled to the fixture by a coupling screw; a sleeve having a barrel shape and fitted to the coupling tap; and a body having a through-hole corresponding to an outer diameter of the sleeve.

Description

SEPARATED TYPE HEALING ABUTMENT [0002]

[0001] The present invention relates to a healing abutment for use in an implant, and more particularly, it relates to a method and apparatus for performing a customized procedure suitable for an oral environment of an individual tooth, Lt; RTI ID = 0.0 > healing abutment. ≪ / RTI >

Generally, an implant implies a replacement that restores when the original tissue has been lost, but implants an artificial tooth in a dentist. To replace the lost root (root), a root made of titanium or the like which does not have a rejection reaction to the human body is planted in the alveolar bone that has passed through the tooth, and then the tooth is restored by fixing the artificial tooth.

In general prostheses or dentures, the surrounding teeth and bones are damaged over time, but the implants do not injure the surrounding dental tissue, and they have the same function and shape as the natural teeth, but do not have cavities. Therefore, they can be used semi-permanently.

Implants also improve the function of dentures in patients with single missing teeth restoration, as well as partial and total toothless teeth, and improve the aesthetic aspects of dental prosthesis restoration. Furthermore, it helps to stabilize the dentition as well as to disperse the excessive stress applied to the surrounding supporting bone tissue.

The dental implant procedure is divided into a gingival bone, a surgical procedure for implanting a fixture on the alveolar bone, and a prosthetic procedure for attaching an artificial tooth to the implanted fixture by connecting the abutment.

There are a variety of implants for these implants, and one of them is described as follows. The implant procedure described below is a Fixture Level Impression method in which a model in the oral cavity is completed by connecting Impression Coping in the oral cavity when the impression is made in the prosthesis process.

First, drilling and tapping are performed on the alveolar bone to form a groove conforming to the dimension of the fixture, and a mount is fastened to the upper portion of the fixture. Then, using a surgical handpiece, the fixture and mount are inserted into the alveolar bone, and then the mount is removed from the fixture, thereby implanting the fixture in the alveolar bone.

The first operation is completed by fastening the cover screw to the top of the fixture and sealing the fixture.

The cover screw prevents bacteria and foreign substances present in the oral cavity from entering the fixture while waiting for the fixture's osseointegration. The duration of ossification is somewhat different depending on the patient's bone quality and implantation position, but usually takes 3 to 6 months.

Next, the gums are opened through a secondary operation to expose the cover screw, check the degree of fusion of the fixture, and remove the cover screw. And a healing abutment is fastened to the top of the fixture for aesthetic gingival formation and waited for two to three weeks. In order to improve the complexity of such a second procedure, a first-aid procedure for fastening the healing abutment is omitted, omitting the process of fastening and removing the cover screw.

Next, after the aesthetic gum formation is confirmed, the abutment abutment is removed, and the impression coping is fastened to the upper part of the fixture to make the prosthesis. The impression material is then used to create a preliminary impression in the mouth and remove impression copings.

Thereafter, a tooth model is prepared, an artificial tooth is pierced, an abutment is fastened to the top of the fixture, and an artificial tooth is completed by fixing a prosthesis, that is, an artificial crown, on the abutment.

In this way, a healing abutment is generally used for the aesthetic gingival formation during the implant procedure.

Since the implant procedure is widely practiced and the technique is widely known and developed in recent years, the result of the implant procedure may be required among the patients as a result of the aesthetic after the implant procedure, and thus the esthetic result is more important after the implant procedure have.

However, conventional healing abutments are made to have shapes that are irrelevant to tooth formation. For example, the cross-sectional shape is formed to have a circular shape.

That is, the conventional healing abutment is formed to have a shape suitable for use with a particular abutment.

Thus, the conventional healing abutment is not suitable for fabricating and using abutments tailored to individual teeth.

The present invention is to provide a healing abutment which is formed by dividing a healing abutment into three parts, which can be customized to various oral environments and which can be universally used for various types of fixtures.

A related precedent document is Korean Registration Practice No. 20-0428106 (Date of Notification, October 10, 2006).

SUMMARY OF THE INVENTION It is an object of the present invention to provide a healing abutment which can be formed in a detachable form so that the healing abutment can be practiced in various forms according to the oral environment of the patient.

It is a further object of the present invention to provide a method of treating a healing abutment by providing a healing abutment in a form corresponding to the shape of a natural tooth, thereby reducing side effects occurring in the final abutment and identifying the directionality of the healing abutment during the procedure And a healing abutment for enabling a more accurate ebantment treatment.

It is another object of the present invention to provide a detachable healing abutment which can be used universally for various types of fixtures.

Another object of the present invention is to provide a healing abutment which can be used for temporary teeth.

According to the present invention, there is provided a surgical instrument, comprising: a fastening tab having a shape corresponding to a fixture inserted into an alveolar bone and fastened to the fixture with a fastening screw; A tubular sleeve fitted to the fastening tab; And a body having a through hole corresponding to an outer diameter of the sleeve.

The fastening tab is preferably made of a dental metal material.

The fastening tab may have a fastening end at an upper end thereof to be fitted into the sleeve.

Further, it is preferable that the sleeve has a straight cross-section that can identify directionality in at least a part of the sleeve, and the fastening end of the fastening tab is fitted with the sleeve in a predetermined direction using a straight section.

In particular, the sleeve may have a circular outer circumferential surface and a D-shaped inner circumferential surface.

In addition, the sleeve and the body may be made of a medical synthetic resin material, and the body may include an adhesive injection unit in the through hole to which the sleeve is coupled.

The sleeve may have a tapered shape in which the cross-sectional area becomes narrower toward the bottom.

In addition, the sleeve has a fitting projection protruding outward, and a fitting groove corresponding to the fitting projection is provided in the through hole of the body, so that the coupling force can be improved. In addition, since the body has an identification protrusion for indicating the direction on the upper surface, the directionality of the healing abutment can be displayed when the impression is obtained.

Meanwhile, it is preferable that the body has an asymmetric three-dimensional shape derived from a natural tooth shape.

In addition, the apparatus may further include an impression cap detachably coupled to the upper end of the body, wherein the impression cap is provided with a buried protrusion at a portion to be embedded in the impression material.

In addition, the body may have a coupling protrusion on an upper surface thereof, and the impression cap may have a coupling groove into which the coupling protrusion is fitted.

The healing abutment according to the present invention can heal the abutment according to the oral environment of the individual patient, thereby shortening the healing time and reducing side effects of the implant teeth.

In addition, the healing abutment according to the present invention is easy to reproduce an asymmetrical natural tooth shape, and the healing abutment can be directionally attached to the fixture, thereby improving the accuracy of the procedure.

In addition, it is possible to confirm the directionality in the state where the healing abutment is placed, to form a temporary tooth in the healing abutment, or to make the healing abutment itself perform the role of temporary tooth directly.

In addition, it can be used universally for various types of fixtures, and it is also possible to judge the accuracy of fastening by using X-ray imaging in the state of being fastened to a fixture.

By providing an impression cap detachably attachable to the healing abutment, the convenience and accuracy of the impression making can be improved.

1 is an exploded perspective view of a detachable healing abutment according to an embodiment of the present invention,
2 is a longitudinal sectional view showing a fastening state of a healing abutment according to an embodiment of the present invention,
3 is a partially enlarged cross-sectional view showing a coupling structure of a fastening tab and a sleeve,
4 is a plan view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged.
FIG. 5 is a longitudinal sectional view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged,
FIG. 6 is a vertical sectional view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged,
Figure 7 illustrates another embodiment of the body of the detachable healing abutment according to the present invention,
8 is a view showing another embodiment of the body of the detachable healing abutment according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detachable healing abutment capable of performing customized procedures according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a separate type healing abutment according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view illustrating a fastening state of a healing abutment according to an embodiment of the present invention.

As shown, the healing abutment according to the embodiment of the present invention includes a fastening tab 120 having a shape corresponding to a fixture inserted into an alveolar bone and fastened to the fixture 20 with a fastening screw 30, And a body 160 having a cylindrical sleeve 140 fitted to the upper end of the fastening tab 120 and a through hole 162 corresponding to the outer diameter of the sleeve 140.

Several companies are manufacturing various types of fixtures. The upper groove of the fixture provides a structure that can be inserted with a directionality, such as a polygonal shape, a star shape, etc., in order to prevent rotation of the prosthesis fastened to the fixture.

Since the conventional healing abutment has a single shape, only the engaging portion is manufactured to fit the fixture to be fastened.

However, the present invention is to provide a healing abutment corresponding to a natural tooth shape of an individual tooth. When the type of a fixture and the kind of a tooth are taken into consideration, the problem of too many kinds of healing abutment is solved So that the fastening tab 120 can be replaced in response to the fixture.

For example, when ten types of tooth shapes are used and ten types of fixtures are used, 100 kinds of healing abutments are required when using a single type of healing abutment as in the prior art. However, When the body 160 and the fastening tab 120 are formed separately and the fastening tab 120 is coupled using the sleeve 140, ten bodies 160 and ten fastening tabs 120 can be used.

The fastening tab 120 is preferably made of a dental metal. This is for the purpose of confirming the engagement state of the fastening tab 120 and the fixture 20 by using the X-ray photographing.

Using conventional synthetic resin heliare buffets, it is impossible to confirm whether the healing abutment is correctly attached to the fixture using X-RAY.

In the present invention, by using the metal fastening tab 120, it is possible to confirm whether the fastening tab 120 is correctly coupled to the fixture 20 by using X-RAY.

The sleeve 140 and the body 160 may be formed of a medical metal material or a synthetic resin material for medical use, but it is preferable that the sleeve 140 and the body 160 are formed of a medical synthetic resin material in terms of cost reduction and ease of processing.

The body 160 preferably has an asymmetrical shape corresponding to the shape of the natural teeth. By forming the body 160 using the standard shape derived from the shape of the individual teeth, the healing time can be shortened and the side effects after the operation can be reduced.

Referring to FIG. 1, a detachable healing abutment according to an embodiment of the present invention includes an insertion portion 122 having a polygonal columnar shape at a lower portion of a fastening tab 120. Further, a fastening hole 125 that penetrates the fastening tab 120 in the vertical direction is formed. The insertion portion 122 is inserted into the fixture 20 inserted into the alveolar bone 10 and the fastening screw 30 is engaged with the fastening tab 120 so that the fastening tab 120 is directionally fastened to the fixture 20.

3 is a partially enlarged cross-sectional view showing a coupling structure of a fastening tab and a sleeve.

As shown in the drawing, the fastening tab 120 and the sleeve 140 are fittable. It is preferable that the fastening tab 124 is formed on the fastening tab 120 so as to be firmly fitted to the sleeve 140.

The fastening end 124 has a shape corresponding to the inner hole 142 of the sleeve 140 and is inserted into the sleeve 120.

It is preferable that a serrated protrusion 124a is formed on the outer surface of the fastening end 124 so as to secure a coupling force between the sleeve 140 and the fastening end 124. [

The inner hole 142 of the sleeve 140 has a straight cross section that can identify directionality at least in a section thereof and the fastening end 124 of the fastening tab 120 has a straight cross section So that the sleeve 140 can be engaged with the sleeve 140 with a predetermined directionality.

The inner hole 142 having a straight cross section may be typically D-shaped, or may be a polygonal shape such as a rectangle, a pentagon, or the like.

At this time, it is preferable that the straight-line cross-section is made to match the directionality of the fastening tab 120 to be engaged with the fixture 20. When the fixture 20 is formed in a polygonal shape and is formed to be directionally coupled with the fastening tab 120, the direction in which the fastening tab 120 is coupled to the fixture 20 is determined by the inner hole 142 of the sleeve 140, Sectional view of the apparatus shown in FIG.

This configuration has the effect of enabling the directionality associated with the fixture to be identified when the impression is acquired in a state where the healing abutment is placed.

4 is a plan view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged.

As shown in the drawing, the sleeve 140 is inserted into the through hole 162 of the body 160. At this time, the through hole 162 is spaced apart from the outer surface of the sleeve 140 to form an adhesive injection space, (Not shown).

An adhesive may be used to reinforce the coupling force between the sleeve 140 and the body 160 and to form the injection space. As the adhesive, a dental resin or the like may be used.

The illustrated embodiment shows a state in which a circular sleeve 140 is coupled to a circular through hole 162. A polygonal sleeve may be coupled to the circular through hole.

5 is a vertical sectional view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged.

As shown in the figure, the sleeve 240 has a tapered shape in which the cross-sectional area becomes narrower as it goes down. When the through hole 262 of the body 260 has a corresponding shape, So that the body 260 can be prevented from being separated from the upper portion of the body 260 and can be firmly coupled to the body 260.

6 is a vertical sectional view showing a state where a body and a sleeve of a detachable healing abutment according to the present invention are engaged.

The sleeve 240 is provided with a fitting protrusion 245 on the outer side of the sleeve 240 and the fitting protrusion 245 is formed on the through hole 262 of the body 260 in addition to the sleeve 240 having a taper shape, And the engagement force can be increased by the engagement of the fitting protrusion 245 and the fitting groove 265. [

Of course, the configuration of the fitting groove and the fitting groove projection is applicable to a case where the sleeve is not a tapered but linear shape.

Although two fitting protrusions and fitting grooves are formed in the upper and lower cases in the illustrated embodiment, one fitting protrusion and fitting groove may be formed in the middle portion, or three or more fitting grooves and fitting protrusions may be provided.

7 is a view showing another embodiment of the body of the detachable healing abutment according to the present invention.

As shown in the figure, the upper surface of the body 160 may have an identification protrusion 169 for indicating the direction. The identification protrusion 169 is imprinted on the impression recognition body to capture the direction of the healing abutment.

The healing abutment according to the present invention may have an asymmetrical three-dimensional shape derived from the natural tooth shape, and in this case, it is helpful to make the final prosthesis by indicating in which direction the healing abutment is correctly coupled to the fixture .

8 is a view showing another embodiment of the body of the detachable healing abutment according to the present invention.

The illustrated embodiment further has an impression cap 180 and is characterized in that the impression cap 180 is removably and directionally coupled to the body 160. [

In the conventional method, after removing the healing abutment, the impression coping is fastened to the fixture and the impression is pulled by the impression material. However, the present invention includes the impression cap 180 detachably attachable to the body of the healing abutment, So that the impression cap 180 can be inserted into the healing abutment body 160 in a state in which the impression cap 180 is embedded and the impression can be obtained.

The upper surface of the healing abutment body 160 is provided with a coupling protrusion 168 and the bottom surface of the impression cap 180 is provided with a coupling groove 182 corresponding to the coupling protrusion 168, So that they can be fitted together. At this time, it is preferable that the coupling protrusions 168 and the coupling grooves 182 are directional and are coupled only in a predetermined direction.

It is further preferred that the impression cap 180 be provided with the embedding projection 184 in the portion to be embedded in the impression material. The embedding projection 184 serves to prevent the impression cap 180 from turning or rotating relative to the impression material. To this end, it is preferable that a plurality of the embedding projections 184 protrude outward as shown in the figure.

As described above, the detachable healing abutment according to the present invention includes a body having an asymmetrical shape corresponding to the shape of a natural tooth, a fastening tab corresponding to various types of fixtures, and a sleeve The fastening tab is selected and used according to the type of fixture, and the body can be selected and used according to the individual teeth.

In addition, since the fastening tab is made of a metal material, it is possible to confirm whether the fastening tab is correctly coupled to the fixture by using X-ray.

10: alveolar bone
20: Fixtures
100: Healing abortion
120: fastening tab
122:
124: fastening end
125: fastening hole
140, 240: Sleeve
160, 260: Body
168: engaging projection
169: Identification projection
180: Implant cap
182: Coupling groove
184: embedding projection
245:
265: Fitting groove

Claims (14)

A fastening tab having a shape corresponding to a fixture inserted into the alveolar bone and fastened with the fastening screw with the fixture;
A tubular sleeve fitted to the fastening tab; And
And a body having a through hole corresponding to an outer diameter of the sleeve,
Wherein the fastening tab is a dental metal material,
Wherein the fastening tab has a fastening end for fastening the fastening tab to the sleeve.
delete delete The method according to claim 1,
The sleeve has a straight cross-section that can identify directionality in at least some sections,
Wherein the fastening end of the fastening tab is fitted with the sleeve in a predetermined direction using a straight section.
5. The method of claim 4,
Wherein the sleeve has a circular outer circumferential surface and a D-shaped inner circumferential surface.
The method according to claim 1,
Wherein the sleeve and the body are made of medical synthetic resin.
The method according to claim 6,
Wherein the body is provided with an adhesive injection part in a through hole through which the sleeve is coupled.
The method according to claim 1,
Wherein the sleeve is of a tapered shape having a reduced cross-sectional area toward the bottom.
The method according to claim 1,
Wherein the sleeve has a fitting protrusion protruding outwardly,
Wherein the through hole of the body has a fitting groove corresponding to the fitting projection.
The method according to claim 1,
Characterized in that the body comprises an identification projection on the upper surface for indicating the directionality.
The method according to claim 1,
Wherein the body has an asymmetric three-dimensional shape derived from a natural tooth shape.
The method according to claim 1,
And an impression cap detachably coupled to the upper end of the body in a directional manner.
13. The method of claim 12,
Wherein the impression cap includes a buried protrusion at a portion to be buried in the impression material.
13. The method of claim 12,
Wherein the body has a coupling protrusion on an upper surface thereof, and the impression cap has a coupling groove to be fitted to the coupling protrusion.

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