KR102024911B1 - Offset type healing abutment - Google Patents

Abstract

The present invention relates to an eccentric healing abutment, which can greatly increase the convenience of manufacturing a prosthesis by inducing a gingiva to be normally formed even though a fixture is installed to be eccentric toward a buccoclusion side or a lingual side while blocking a gingival valve not to be located on an upper surface thereof. According to an embodiment of the present invention, the eccentric healing abutment of the present invention comprises: a healing abutment body fastened to a fixture implanted in an alveolar bone to prevent the contraction of a gingiva due to extraction of a tooth, and having a fastening hole for fastening a fastening member at the center thereof; and an eccentric guide protruding unit integrally formed to protrude from one side at an upper portion of the healing abutment body to guide the fastening hole to be eccentric toward one side when viewed from the top. The eccentric healing abutment of the present invention further comprises a gripping protruding unit integrally formed to protrude from one side of the eccentric guide protruding unit, and located at an upper portion of the gingiva when the healing abutment body is fastened and fixed to the fixture.

Description

Eccentric Healing Abutment {OFFSET TYPE HEALING ABUTMENT}

Disclosed is a healing abutment coupled to a fixture placed in the alveolar bone to prevent contraction of the gingiva due to extraction.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application and the description in this identification is not admitted to be prior art.

In general, teeth are body tissues responsible for the chewing function that helps digestion by crushing or grinding food. When these teeth are lost due to tooth extraction, for example, tooth decay, they cause chewing problems, so they cannot chew food properly and are not digested well. do. For this reason, teeth have long been recognized as an important part of the body and play an important role in living a healthy life.

In general, humans have a total of 32 teeth including 16 teeth in the maxilla and 16 teeth in the mandible, and after the childish teeth are replaced with permanent teeth once in childhood, they use oral activity for a lifetime. Perform.

Since a human tooth is replaced with a permanent tooth once in childhood, when a tooth is lost, new teeth are no longer formed. Thus, a dental tooth repairs a tooth or a surrounding tissue that has been lost through prosthetic treatment.

For example, in the case of universal prostheses such as bridges, partial dentures, and dentures, there is a problem of causing inconvenience in use due to foreign matter. For this reason, dental implants have recently been in the spotlight in the event of tooth defects, which can restore almost all the same functions and appearance as natural teeth without damaging the surrounding teeth or tissues.

Dental implants are largely composed of a fixture fixed to the alveolar bone, an abutment coupled to the fixture, and a crown integrally coupled to the abutment. The fixture corresponds to an artificial tooth placed in the alveolar bone, the abutment serves to connect the fixture and the crown, and the crown corresponds to an artificial tooth that reproduces the same shape and function as a natural tooth.

On the other hand, the dental implant procedure is divided into a first procedure for placing the fixture in the alveolar bone, and a second procedure for mounting an artificial tooth by connecting the abutment to the implanted fixture. The general procedure of the dental implant is described as follows.

First, by forming a groove corresponding to the fixture in the alveolar bone by drilling and tapping, fastening the mount on the upper part of the fixture, and using the handpiece, the fixture and the mount are placed in the alveolar bone, and then the mount is removed from the fixture. Place the fixture. The first procedure is then completed by closing the fixture by tightening a cover screw on top of the fixture. At this time, the cover screw blocks bacteria and foreign substances present in the oral cavity from entering the fixture while waiting for the fusion of the fixture. Bone fusion periods vary somewhat depending on the patient's bone quality and placement location, but generally take 3 to 6 months.

After the fusion period has elapsed, the gingiva is opened to expose the cover screw, then the degree of bone fusion of the fixture is checked and the cover screw is removed. Then heal healing abutment (Healing Abutment) to the top of the fixture for aesthetic gingival formation and wait for two to three weeks. In recent years, in order to improve the complexity of the secondary procedure, a primary procedure may be used in which a lid screw is fastened and removed, and a healing abutment is directly fastened.

In general, when the extraction is performed to perform an implant procedure, the gingiva generally contracts about 2 mm in the height direction compared to the normal gingiva and about 4 mm in the width direction compared to the normal gingiva. When the abutment and the crown are connected in the contracted state of the gingiva, there is a problem that food is caught in the cervical region where the gingiva is contracted.

In order to solve this problem, a healing abutment procedure for fixing the tissue regeneration material on the lower part of the gingiva and maintaining the gingiva at a normal height and width is used.

Then, the healing abutment is removed, the impression coping is fastened to the top of the fixture for fabrication of the prosthesis and the impression material is used to take a preliminary impression in the oral cavity and remove the impression coping. Next, the second procedure is completed by fabricating a tooth model, pore the crown, fastening the abutment on the fixture, and fixing the crown on the abutment.

As an example of a healing abutment used in such a dental implant, the Republic of Korea Patent Publication No. 10-2014-0145014 (published Dec. 22, 2014) and the body portion coupled to the fixture placed in the alveolar bone of the missing tooth, A coupling groove provided at a lower portion of the main body, and a tool groove recessed to a predetermined depth from an upper surface thereof is formed at an upper end of the main body so that a stopper for preventing rotation of the main body may be mounted, and the coupling portion is coupled to the fixture. Compensation for the insertion error of the fixture to be placed in the alveolar bone is provided in the lower portion of the main body portion so that the center of the maximum flat cross-section of the main body portion is located in the central region of the neck of the missing tooth. A tooth neck abutment is disclosed.

In addition, the Republic of Korea Patent Publication No. 10-2013-0058410 (published on June 4, 2013) is a healing abutment inserted into the fixture for implants and having a natural tooth shape, a fixture insertion unit inserted into the implant fixture, and the fixture It is disposed on the upper side of the insertion portion, and has a cross-sectional shape corresponding to the cross-sectional shape of the tooth portion of the natural tooth to be replaced, the gingival generation unit for generating a gingival shape corresponding to the tooth neck portion, penetrating the fixture insertion unit and the gingival generation unit Disclosed is a healing abutment including a body portion having an inner through hole and a screw member inserted into the inner through hole and screwed to an implant fixture.

In addition, the Republic of Korea Patent Publication No. 10-2014-0010745 (January 27, 2014 published) is a fastening portion that is directionally coupled to the fixture inserted into the alveolar bone, and formed integrally above the fastening portion to correspond to the shape of natural teeth A cuff portion having an asymmetrical three-dimensional shape, a fastening screw fastened to the fixture through the fastening portion and the cuff portion, and integrally formed above the cuff portion and formed in a column shape having a cross-sectional area smaller than an upper surface of the cuff portion. Disclosed is a healing abutment comprising a post portion.

 However, in the case of the procedure using the healing abutment described above, as shown in FIG. 1, the gingiva 103 is healed in the healing state as the gingiva valve 101 is sealed to the upper portion of the healing abutment 100. There was a problem that is covered on the upper portion of the abutment 100 to interfere with the prosthetic manufacturing.

Also, as shown in FIG. 2, when the fixture is eccentrically or eccentrically placed according to the surgical site, the buccal or lingual gingiva is formed to be normal or lower, for example, a prosthesis 110 such as a crown is relatively. There was a problem that must be made long.

Patent Document 1: Republic of Korea Patent Publication No. 10-2014-0145014 (released Dec. 22, 2014) Patent Document 2: Republic of Korea Patent Publication No. 10-2013-0058410 (published 06.04.2013) Patent Document 3: Republic of Korea Patent Publication No. 10-2014-0010745 (January 27, 2014 published)

An eccentric healing abutment that allows the gingival valve to be blocked from being located on the upper surface and at the same time the fixture is installed eccentrically to the buccal or lingual side, but the gingiva is formed normally so that the convenience of prosthetic fabrication can be greatly increased. To provide.

In addition, it is not limited to the technical problems as described above, it is obvious that another technical problem may be derived from the following description.

Disclosed is a healing abutment body that is fastened to the fixture placed in the alveolar bone to prevent contraction of the gingival due to extraction and in the center is formed a fastening hole for fastening of the fastening member, and the upper side of the healing abutment body In one embodiment, an eccentric healing abutment is formed to be integrally formed to protrude so that the fastening hole is eccentrically directed to one side when viewed from the top.

According to a feature of the disclosed subject matter, the eccentric induction protrusion is positioned in a direction opposite to the eccentric direction of the fixture so that the gingiva is normally formed regardless of the eccentric placement of the fixture.

According to a feature of the disclosed contents, the eccentric induction projections are integrally formed on one side, and further comprising a gripping protrusion located on the upper side of the gingiva when the fastening of the healing abutment body to the fixture.

According to the eccentric healing abutment according to an embodiment of the present disclosure, the eccentric induction protrusion and the gripping protrusion protruding to one side of the healing abutment body when being fastened to the fixture placed in the alveolar bone are located on the upper part of the gingiva. As it is fixed, the gingival is blocked so as not to be positioned on the upper surface, so there is an advantage that the prosthetic manufacturing can be easily performed.

In addition, according to the eccentric healing abutment according to an embodiment of the present disclosure, even if fixed to the fixture eccentrically placed in the alveolar bone, the eccentric induction protrusion and the gripping protrusion are positioned to face the direction opposite to the eccentric direction, the gingiva is normally As it is induced to be formed, there is an advantage that the convenience of prosthetic manufacturing can be greatly increased.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a state diagram used in the conventional healing abutment.
2 is a state diagram of a prosthesis using a conventional healing abutment applied to an eccentrically placed fixture.
3 is a perspective view of an eccentric healing abutment in accordance with one embodiment of the disclosed subject matter.
4 is a plan view of an eccentric healing abutment in accordance with one embodiment of the disclosed subject matter.
5 is another plan view of an eccentric healing abutment in accordance with one embodiment of the disclosed subject matter.
6 is a state of use of the eccentric healing abutment according to an embodiment of the disclosed contents.
7 is an explanatory view of the removal of the grip projection in the eccentric healing abutment according to an embodiment of the disclosure.
8 is a perspective view of an eccentric healing abutment in accordance with another embodiment of the disclosed subject matter.

Hereinafter, with reference to the accompanying drawings looks at the configuration and effect of the preferred embodiment of the disclosed contents. For reference, in the drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals throughout the specification refer to the same components and reference numerals for the same components in the individual drawings will be omitted.

3 is a perspective view of an eccentric healing abutment in accordance with one embodiment of the disclosed subject matter.

As shown in FIG. 3, the eccentric healing abutment 1 is fastened to a fixture (not shown) implanted in the alveolar bone to prevent contraction of the gingiva due to extraction and to be fastened at the center thereof. Healing abutment body 10 is formed with a fastening hole 11 for fastening the member (not shown), and integrally formed to protrude to one side on the upper part of the healing abutment body 10 fastening hole 11 ) Includes an eccentric induction protrusion 20 to induce eccentricity to one side when viewed from the top.

Here, the healing abutment body 10 is a portion corresponding to the conventional healing abutment of the eccentric healing abutment (1) according to an embodiment of the disclosed content, the fastening member to the fixture placed in the alveolar bone It is fastened by the role of forming the cervical prosthesis to prevent contraction of the gingiva due to extraction.

The fastening hole 11 is formed in the center of the healing abutment body 10. Referring to FIG. 6, the fastening hole 11 is a portion to which the fastening member 5 for pressing and fixing the eccentric healing abutment 1 to the fixture according to one embodiment of the disclosure is inserted and fastened. 5 is actually inserted through the through hole (11a), and formed around the upper end of the through hole (11a) protruding at an angular interval to prevent separation of the fastening member (5) and through, It is formed on the top of the ball (11a) and includes a stepped portion (11c) that the head of the fastening member (5) is seated and supported.

Therefore, when the operator applies the rotational force while pressing the clamping member 5 in the fastening hole 11 with a predetermined force or more, the fastening member 5 can be inserted into the lower part of the release preventing protrusion 11b, but once the fastening member When 5 is fastened to the fixture through the fastening hole 11, it is forcibly prevented from falling out by the separation preventing protrusion 11b.

An eccentric induction protrusion 20 is integrally formed to protrude to one side on the upper portion of the healing abutment body 10 described above. The eccentric guide protrusion 20 is a component that induces the fastening hole 11 to be eccentric to one side when viewed from the top, and at the same time to induce the gingival to be normally formed regardless of the eccentric placement of the fixture.

4 is a plan view of an eccentric healing abutment according to an embodiment of the disclosed subject matter, and FIG. 5 is another plan view of the eccentric healing abutment according to an embodiment of the disclosed subject matter.

The eccentric healing abutment 1 according to the embodiment of the present disclosure in which the eccentric induction protrusion 20 is integrally formed on one side of the healing abutment body 10 is shown in FIG. 4 when viewed from the top. It may be formed in a circular shape as shown, or may be formed in an elliptical shape as shown in FIG.

In addition, the fastening hole 11 guided to be eccentrically by the eccentric guide protrusion 20 to one side forms an upper surface of the eccentric healing abutment 1 according to an embodiment of the disclosed contents as shown in FIG. 4. Eccentric healing abutment 1 according to one embodiment of the disclosed content may be eccentric by a length of 0.8 to 1.2 mm, preferably 1.0 mm from one side of the center of the circle to be shown, as shown in FIG. It may be eccentric by a length of 0.8 to 1.2 mm, preferably 1.0 mm from one side along the major radius from the center of the circle forming the upper surface of the.

The above-described eccentric induction protrusion 20 induces the gingival to be normally formed regardless of the eccentric placement of the fixture, as the fixture is eccentrically placed in the direction opposite to the eccentric direction of the fixture.

For example, when the fixture is eccentrically placed in the buccal eccentric induction protrusion 20 is preferably positioned to face the lingual, for example, when the fixture is eccentrically placed in the lingual eccentric induction protrusion 20 is It is preferably positioned to face the buccal side.

In addition, for example, when the fixture is eccentrically placed in the mesial side, the eccentric induction protrusion 20 is preferably positioned to face the centrifugal side, for example, when the fixture is eccentrically placed in the centrifugal side, the eccentric induction protrusion 20 ) Is preferably located facing the mesial side.

On one side of the above-described eccentric induction protrusion 20, the gripping protrusion 30 is integrally formed. The gripping protrusions 30 are positioned so as to be placed on top of the gingiva when the eccentric healing abutment 1 is fastened and fastened in accordance with one embodiment of the disclosed contents. It serves to prevent the eccentric healing abutment (1) from being covered in advance.

In addition, the gripping protrusion 30 is used as a gripping protrusion for gripping an eccentric healing abutment 1 according to an embodiment of the contents disclosed by the operator as a gripping tool such as, for example, a tweezers.

In addition, the gripping protrusions 30 do not need to be fixed to the upper part of the gingiva according to various surgical conditions such as the implantation state, or when the gingiva is normally formed and no longer need to be fixed to the upper part of the gingiva. It can be removed from the eccentric induction protrusion 20 by cutting.

6 is a state diagram used in the eccentric healing abutment according to an embodiment of the disclosed content, Figure 7 is an explanatory view of the removal of the grip projection in the eccentric healing abutment according to an embodiment of the disclosed content . Hereinafter, a method of using an eccentric healing abutment according to an embodiment of the disclosed contents with reference to FIGS. 3 to 7 will be described.

First, as shown in FIG. 6, in the state where the fixture 3 is placed in the alveolar bone, an eccentric healing device according to an embodiment of the present disclosure is illustrated by picking up the gripping protrusion 30 using a gripping tool such as tweezers. After holding the butt is fixed on the fixture (3), the fastening member (5) through the fastening hole (11) to fasten the fastening.

At this time, the eccentric induction protrusion 20 is located in a direction opposite to the eccentric direction of the fixture, particularly when the fixture is eccentrically placed to induce the gingival to be normally formed regardless of the eccentric placement of the fixture.

In addition, as the grip protrusion 30 is positioned so as to be placed on top of the gingiva, it may be prevented that the gingiva is covered with the top of the eccentric healing abutment 1 according to an embodiment of the present disclosure.

The gripping protrusions 30 do not need to be fixed to the upper part of the gingiva, or when the gingiva is formed normally and no longer need to be fixed to the upper part of the gingiva, as shown in FIG. It may be removed from the eccentric induction protrusion 20.

Therefore, the eccentric healing abutment (1) according to an embodiment of the disclosure is protruded to one side of the healing abutment body (10) when fastened and fixed to the fixture (3) placed in the alveolar bone 20 As the gripping protrusion 30 is fixed to be positioned above the gingiva, the gingiva is blocked so as not to be covered on the upper surface, so that the prosthesis can be easily manufactured.

In addition, the eccentric healing abutment (1) according to an embodiment of the present disclosure is the eccentric induction protrusion 20 and the gripping protrusion 30 when the fastening is fixed on the fixture (3) eccentrically placed in the alveolar bone Prosthetic fabrication can be made easily as it is positioned to face in the opposite direction as the gingiva is normally formed.

8 is a perspective view of an eccentric healing abutment according to one embodiment of the disclosed subject matter in which gripping grooves are formed.

As shown in FIG. 8, the eccentric healing abutment 1 according to one embodiment of the disclosed contents is inserted at the lower end side of the bent gripping member 41 on the eccentric guide protrusion 20 to be disclosed at the time of the procedure. A gripping groove 40 may be formed to enable gripping of the eccentric healing abutment 1 according to an embodiment of the present disclosure.

 When the gripping groove 40 is formed on the upper portion of the eccentric guide protrusion 20, the operator fastens and fixes the healing abutment body 10 to the fixture 3 using the fastening member 5 or the fastening member 5. ) To release the fastening, by inserting the lower end side of the bent gripping member 41 into the gripping groove 40, the healing abutment body 10 can be forcibly supported so that it can not be rotated, the procedure is more convenient. But it can be done quickly.

The gripping groove 40 may be formed in the eccentric induction protrusion 20 together with the gripping protrusion 30 forming the gripping protrusions, or may be formed in the eccentric induction protrusion 20 only by replacing the gripping protrusion 30. May be

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical idea of the present invention. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

1: Eccentric Healing Abutment
3: fixture
5: fastening member
10: Healing abutment body
11: fastener
11a: through hole
11b: Breakaway prevention protrusion
11c: seating step
20: eccentric guide protrusion
30: gripping protrusion
40: gripping ball
41: bending type holding member
100: conventional healing abutment
101: gingiva valve
103: gingiva
110: prosthetic

Claims (7)

Healing abutment body that is fastened to the fixture placed in the alveolar bone to prevent contraction of the gingiva due to extraction and the fastening hole for fastening the fastening member in the center;
An eccentric induction protrusion which is integrally formed to protrude to one side at an upper portion of the healing abutment body to induce the fastening hole to be eccentric to one side when viewed from the top; And
An eccentric healing abutment including a gripping protrusion formed integrally with one side of the eccentric guide protrusion and positioned at the top of the gingival when fastening the healing abutment body to the fixture. The method according to claim 1,
The eccentric inducing protrusion is eccentric healing abutment, characterized in that located in a direction opposite to the eccentric direction of the fixture so that the gingiva is formed normally regardless of the eccentric placement of the fixture. The method according to claim 1,
The upper surface of the healing abutment body including the eccentric guide protrusion is formed in a circle or ellipse, the fastening hole is eccentric to the length of 0.8 to 1.2 mm from the center of the upper surface of the healing abutment body to one side An eccentric healing abutment characterized by the above. The method according to claim 1,
The fastening hole has a through hole through which the fastening member is coupled to the through hole, an anti-separation protrusion formed to protrude inwardly at an angular interval around the upper end of the through hole, and prevents the detachment of the fastening member. Eccentric healing abutment is formed, characterized in that it comprises a stepped portion that is supported by the head of the fastening member seated. delete The method according to claim 1,
The gripping protrusion is used as a gripping protrusion during the procedure, and when it is not necessary to fix the position to the upper gingiva, the eccentric healing abutment, characterized in that the removal from the eccentric induction protrusion through cutting. The method according to any one of claims 1 to 4,
Eccentric healing abutment, characterized in that the gripping groove is formed on the eccentric induction projection is inserted bent gripping member.

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