KR20160095260A - Dental implant having enhanced adaptation - Google Patents

Dental implant having enhanced adaptation Download PDF

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Publication number
KR20160095260A
KR20160095260A KR1020150016049A KR20150016049A KR20160095260A KR 20160095260 A KR20160095260 A KR 20160095260A KR 1020150016049 A KR1020150016049 A KR 1020150016049A KR 20150016049 A KR20150016049 A KR 20150016049A KR 20160095260 A KR20160095260 A KR 20160095260A
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KR
South Korea
Prior art keywords
crown
abutment
fixture
protrusion
post
Prior art date
Application number
KR1020150016049A
Other languages
Korean (ko)
Inventor
김정한
황준호
박현위
Original Assignee
라파바이오 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 라파바이오 주식회사 filed Critical 라파바이오 주식회사
Priority to KR1020150016049A priority Critical patent/KR20160095260A/en
Publication of KR20160095260A publication Critical patent/KR20160095260A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0059—Connecting devices for joining an upper structure with an implant member, e.g. spacers with additional friction enhancing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental implant prosthesis, and more particularly, to a dental implant prosthesis that allows crown and abutment to be accurately combined.
The present invention provides a dental prosthesis including a fixture to be inserted into an alveolar bone, an abutment to be fastened to the fixture, and a crown to be coupled to the abutment, wherein the abutment includes a chamfered surface And a protrusion formed on an upper surface of the post, wherein the crown includes a protrusion groove into which the protrusion is inserted. .

Description

[0001] DENTAL IMPLANT HAVING ENHANCED ADAPTATION WITH IMPROVED COMBINATION ACCURACY OF CROWN AND ABATMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental implant prosthesis, and more particularly, to a dental implant prosthesis that allows crown and abutment to be accurately combined.

Generally, an implant implies a replacement that restores the original tissue when it is lost, but it refers to placing an artificial tooth substitute 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 after a while, but the dental implant prosthesis does not injure the surrounding tooth tissue and has the same function and shape as the natural teeth and does not cause cavities. have.

In addition, dental implant prostheses enhance the function of dentures in single-tooth restorations, as well as in partial and total toothless patients, 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.

As described above, the dental implant restoration procedure is divided into a gingival bone, that is, a surgical procedure for implanting a fixture on an alveolar bone, and a prosthetic procedure for attaching a tooth replacement to an abutment on a planted fixture.

There are a variety of procedures for the dental implant prosthesis. An example of the procedure is as follows. The dental implant prosthetic treatment method described below is a fixture level impression method for completing the model in the oral cavity by connecting impression copings in the oral cavity when the impression is made in the prosthodontic 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. For aesthetic gum formation, the healing abutment is fastened to the top of the fixture and waited for two to three weeks. In order to improve the complexity of such a second procedure, a first-line procedure for fastening a healing abutment is often used, omitting the process of fastening and removing the cover screw.

Next, after the aesthetic gum formation is confirmed, the healing abutment is removed, and the impression coping is fastened to the top 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, that is, an artificial crown is pierced, an abutment is fastened on the fixture, and an upper prosthesis (i.e., a crown) is fixed on the abutment to complete the implant prosthesis.

It is an object of the present invention to provide a dental implant prosthesis to which an abutment can be correctly coupled with a crown.

In order to achieve the above object, the present invention provides a dental prosthesis including a fixture inserted into an alveolar bone, an abutment fastened to the fixture, and a crown coupled to the abutment, And a protrusion formed on an upper surface of the post, wherein the crown includes a protrusion groove into which the protrusion is inserted, characterized in that the protrusion is formed on the inner surface of the post, Dental prosthesis.

According to another aspect of the present invention, there is provided a dental prosthesis including a fixture inserted into an alveolar bone, an abutment fastened to the fixture, and a crown coupled to the abutment, And a protrusion formed on an upper surface of the post, wherein the crown includes protrusions inserted in the protrusion groove. The protrusion is formed in the protrusion groove, Dental prosthesis.

It is preferable that the protrusions are formed in a conical shape in which the cross-sectional area becomes narrower as the protrusion height increases.

The protrusions may be formed in an asymmetric shape.

And the projecting direction of the projections is preferably formed to be parallel to the direction of engagement of the crown.

The plurality of protrusions may be provided, and the plurality of protrusions may be arranged asymmetrically.

The upper surface of the post may be flat or the upper surface of the post may have irregularities corresponding to the upper surface shape of the crown.

The dental implant prosthesis according to the present invention has the effect of allowing the crown to be coupled with the correct direction to the abutment.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the external shape and internal structure of a dental implant prosthesis,
FIG. 2 illustrates a dental implant prosthesis having improved crown and abutment coupling accuracy according to a first embodiment of the present invention. FIG.
FIG. 3 is a view showing a dental implant prosthesis having improved crown and abutment coupling accuracy according to a second embodiment of the present invention. FIG.
FIG. 4 is a view showing an aberration of a dental implant prosthesis that improves the accuracy of engagement between a crown and an abutment according to a third embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or preliminary meaning and the inventor shall properly define the concept of the term in order to describe its invention in the best possible way It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. It should be noted that the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications are possible.

1 is a view schematically showing an external shape and an internal structure of a dental implant prosthesis.

As shown, the dental implant prosthesis includes a fixture 110 inserted in the alveolar bone 10, an abutment 120 fastened to the fixture, and a final dental implant restoration 120 surrounding the abutment 120, And a crown 130 which forms the outer shape of the crown 130.

In the drawing, a portion below the one-dot chain line shows a cross-section, and a portion above the one-dot chain line schematically shows a side surface.

The crown 130 may be made of a precious metal alloy containing gold (Au), a non-precious metal or a semi-precious metal alloy containing no gold, a ceramic material, or a precious metal, a non- It can be manufactured using various dental materials such as precious metal or semi precious metal and ceramics together.

The contour of the crown 130 is determined using the teeth shape extracted by the patient, the shape of the mating teeth, and the like.

The inner shape of the crown 130 is formed in a shape corresponding to the outer shape of the abutment.

The upper surface of the abutment may be formed flat, or may be formed to correspond to the crown contour.

When the upper surface of the abutment is formed flat, it is possible to reduce the machining cost, the machining time, the design time and the post-machining time, and it is possible to reduce the occurrence of the rough area or the over- ≪ / RTI >

When the upper part of the abutment is formed so as to correspond to the crown shape (final tooth shape), the processing cost and time of the abutment and the crown are increased accordingly, while the effect of the load distribution of the abutment is maximized, Can be prepared.

FIG. 2 is a view showing a dental implant prosthesis having improved crown and abutment coupling accuracy according to the first embodiment of the present invention.

As shown, an implant prosthesis according to an embodiment of the present invention includes a fixture 110 inserted into an alveolar bone, an abutment 120 fastened to the fixture 110, a crown coupled to the abutment 120, (130).

The abutment 120 is fastened to the fixture 110 with a fastening bolt 115 and the crown 130 is fastened to the abutment by an adhesive and by an adhesive force.

The crown 130, which forms the contour of the final prosthesis, must be coupled with precise orientation. To this end, the abutment 120 is directionally fastened to the fixture 110, and the crown 130 is also coupled to the abutment 120 in a direction.

However, although the crown 130 has a groove corresponding to the shape of the abutment 120, the crown 130 has a clearance for securing the application space of the adhesive and for ease of fitting.

The present invention is intended to ensure a precise directionality when the crown 130 and the abutment 120 are coupled.

As shown. The abutment 120 of a dental implant prosthesis according to the present invention includes a chamfered surface 122 in contact with the crown, a post 124 protruding from the inside of the chamfered surface 122, And a protrusion 125 formed on the surface.

Meanwhile, the crown 130 has a protrusion groove 135 into which the protrusion 125 is inserted.

The protrusion 125 is provided on the upper surface of the post of the abutment 120 of the present invention and the crown 130 is provided with the protrusion groove 135 into which the protrusion 125 is inserted, The crown 130 and the abutment 120 can have the correct direction by allowing the projection 125 to be fitted into the projection groove 135 when the crown 130 is engaged.

At this time, it is preferable that the protrusion 125 and the protrusion groove 135 are formed to have a size and a shape matching with each other so that a clearance is not generated.

As shown in the drawing, the protrusion 125 is preferably formed in a conical shape having a smaller sectional area as the protrusion height increases. This is for allowing the projection 125 to be easily inserted into the projection groove 135.

It is preferable that the projecting direction of the protrusion 125 is formed to be parallel to the direction of engagement of the crown 130.

Further, the protrusions 125 may be formed in an asymmetric shape. In other words, it may be formed in a shape of a horn biased to one side. This shape has the effect of allowing the protrusions 125 to be coupled with more precise directionality when they are engaged with the protruding grooves 135.

FIG. 3 is a view showing a dental implant prosthesis having improved crown and abutment coupling accuracy according to a second embodiment of the present invention.

The first embodiment of the present invention has a protrusion on the upper surface of the post 124 of the abutment 120 and a protrusion groove on the crown 130. However, The protrusion 125a is provided on the upper surface of the post of the butt 120 and the protrusion 135a is provided on the inner surface of the crown 130. [

The same effect can be obtained in terms of securing the accuracy of the coupling due to the engagement of the projection 135a and the projection groove 125a, and a duplicate description will be omitted.

In the second embodiment, the upper surface of the abutment 120 is provided with concavities and convexities corresponding to the upper surface shape of the crown 130, but in the case of the second embodiment, The upper surface of the post may be applied to the flat shape, or the first embodiment may be applied to the shape having the concave and convex on the post upper surface.

4 is a view showing an abutment of a dental implant prosthesis that improves the accuracy of engagement between a crown and an abutment according to a third embodiment of the present invention.

The third embodiment is characterized in that a plurality of projections 125 are provided on the upper surface 124a of the abutment 120 as shown in the figure. At this time, it is preferable that the plurality of protrusions 125 are arranged asymmetrically. Of course, a plurality of projecting grooves may be provided on the upper surface of the abutment 120, and a plurality of projecting grooves may be provided on the inner surface of the crown. Reference numeral 128 denotes a through hole to which a fastening bolt (115 in FIG. 1) for fastening an abutment to a fixture is coupled.

It is to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present invention will be indicated by the appended claims rather than by the foregoing detailed description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims, as well as any equivalents thereof, be within the scope of the present invention.

10: alveolar bone 110: fixture
115: fastening bolt 120: abutment
122: chamfer 124: post
125: projection 125a: projection groove
130: Crown 135: Projection groove
135a:

Claims (9)

A dental prosthesis comprising a fixture to be inserted into an alveolar bone, an abutment to be fastened to the fixture, and a crown to be coupled to the abutment,
Wherein the abutment has a chamfer surface which is a surface in contact with the crown, a post protruding from the inside of the chamfer surface, and a protrusion formed on an upper surface of the post,
Wherein the crown has a projection groove into which the projection is inserted.
A dental prosthesis comprising a fixture to be inserted into an alveolar bone, an abutment to be fastened to the fixture, and a crown to be coupled to the abutment,
Wherein the abutment has a chamfered surface which is a surface in contact with the crown, a post protruding from the inside of the chamfered surface, and a protruding groove formed on an upper surface of the post,
Wherein the crown has a projection inserted into the projection groove.
3. The method according to claim 1 or 2,
Wherein the protrusions are formed in a conical shape having a smaller cross-sectional area as the protrusion height increases.
The method of claim 3,
Wherein the protrusions are formed in an asymmetric shape.
The method of claim 3,
And the projection direction of the protrusion is formed to be parallel to the direction of engagement of the crown.
3. The method according to claim 1 or 2,
Wherein a plurality of the protrusions are provided.
The method according to claim 6,
The plurality of projections
And wherein the dental prosthesis is arranged asymmetrically.
3. The method according to claim 1 or 2,
And the upper surface of the post is formed flat.
The method according to claim 1,
And the upper surface of the post has concave and convex portions corresponding to the shape of the upper surface of the crown.
KR1020150016049A 2015-02-02 2015-02-02 Dental implant having enhanced adaptation KR20160095260A (en)

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Application Number Priority Date Filing Date Title
KR1020150016049A KR20160095260A (en) 2015-02-02 2015-02-02 Dental implant having enhanced adaptation

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102339789B1 (en) 2021-08-24 2021-12-14 채희진 Detachable implant binding prosthesis with easy detachement
KR20230083490A (en) 2021-12-03 2023-06-12 주식회사 디오 dental restoration set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102339789B1 (en) 2021-08-24 2021-12-14 채희진 Detachable implant binding prosthesis with easy detachement
KR20230083490A (en) 2021-12-03 2023-06-12 주식회사 디오 dental restoration set

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