KR20190007873A - Implant fixture having concave flange for anchor - Google Patents
Implant fixture having concave flange for anchor Download PDFInfo
- Publication number
- KR20190007873A KR20190007873A KR1020170089476A KR20170089476A KR20190007873A KR 20190007873 A KR20190007873 A KR 20190007873A KR 1020170089476 A KR1020170089476 A KR 1020170089476A KR 20170089476 A KR20170089476 A KR 20170089476A KR 20190007873 A KR20190007873 A KR 20190007873A
- Authority
- KR
- South Korea
- Prior art keywords
- concave flange
- concave
- flange
- bone
- implant fixture
- Prior art date
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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
-
- 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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- 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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
- A61C8/0025—Self-screwing with multiple threads
-
- 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
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0028—Pins, needles; Head structures therefor
-
- 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
- A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
The present invention relates to an implant fixture having a concave flange for an anchor. By providing a concave flange on the head portion of the implant fixture, even if the side projecting length of the head is short, the contact area with the alveolar bone is sufficient, In this case, the edge of the concave flange is fixed by an anchor, the bone is implanted simultaneously by the hole, and asymmetric concave flange or cut concave flange forms a groove on one side or both sides of the ball and tongue direction, The implant can be implanted without bone grafting even when the width is small and the edge of the concave flange is fixed to the alveolar bone with the anchor, so that the present invention can be applied not only to the separation type but also to the integral type.
Description
The present invention relates to an implant fixture, and more particularly, to an implant fixture having a concave flange for an anchor that can be fixedly inserted into an alveolar bone at a predetermined depth.
An implant is one of the dental procedures that restores tooth function with an artificial tooth by implanting a screw-shaped implant fixture into the alveolar bone to replace the tooth root of the missing tooth, and then applying a prosthesis to the alveolar bone.
As the implant procedure is becoming more common, a variety of implant fixtures have been developed. The implant fixtures developed so far can be largely divided into separate types and integral types. The former has a structure in which an abutment is inserted and then fastened with a screw which is divided into an external protrusion type and an internal insertion type depending on the type of the fastening part with the abutment, The latter has a structure that allows the prosthesis to be directly attached without screwing.
Since the implant fixture has advantages and disadvantages depending on the structure of each type, it can be selected depending on the patient's alveolar bone state or the object of the artificial tooth such as the front teeth or the molar teeth.
However, the conventional implant fixture has a disadvantage in that the stress generated by the chewing activity can not be properly dispersed as the force is dispersed only in the region implanted in the alveolar bone, regardless of the structure of any kind. In order to solve such a problem, the present inventor has developed a stress-dispersed implant fixture having a head portion exposed to the outside of a bone structure as disclosed in Korean Patent No. 10-1327655.
The stress-dispersed implant fixture has the effect of dispersing the stress on the bone structure by forming the lower diameter of the head portion larger than the body portion having the helix. However, since the lower surface of the head portion is simply horizontally expanded to increase the contact area with the alveolar bone, (When the bone width is 6 mm and a separate type is used, it is preferable that the upper end width of the body part is 4 mm or more because of the screw loosening prevention and the like. At this time, the expandable length of the lower part of the head is limited to 1 mm or less) As in the case of stagnation, when a considerable amount of time has elapsed after the extraction, a hole is formed in the alveolar bone, or a groove is formed on one side or both sides of the ball and the tongue. If the alveolar bone is small in width, There is a problem.
In order to solve the problems of the prior art, the present invention has been made to solve the problems of the prior art, that is, even if the projecting length of the bottom surface of the head of the implant fixture is short, the contact area with the alveolar bone is sufficient, It is an object of the present invention to provide an implant fixture having a concave flange for an anchor that can be implanted without separate bone implantation even when the alveolar bone has a small width, and can be applied to an integral type as well as a separate type implant.
In order to achieve the above object, according to the present invention, there is provided an implant fixture comprising a body part formed with threads on the outer surface thereof and inserted into the alveolar bone, and a head part formed on the upper end of the body part, Wherein the concave flange has a protruded concave flange, the concave flange has a concave groove formed on a lower surface thereof, and the concave groove is formed symmetrically with the body portion as a central axis.
The concave groove is formed between the upper end of the body part and the edge of the concave flange and the upper surface of the concave flange is symmetrical with respect to the body part as a central axis and inclined downward toward the edge. Other features.
The edge of the concave flange is a circular tip protruding downward and the end of the circular tip is further lowered from the upper end of the body part to a certain depth below the implant fixture according to the present invention.
The distal end of the horseshoe-shaped tip is further lowered from the upper end of the body part to a certain depth below the edge of the concave flange, Other features.
Wherein the recessed flange has a cut surface cut at a predetermined distance on opposite sides thereof and an edge except for the cut surface forms an arc tip protruding downwardly and an end of the arc tip is moved downward The implant fixture according to the present invention is characterized in that it is lowered.
The protruded length of the side surface of the concave flange is 0.1 to 0.5 mm, which is another feature of the implant fixture according to the present invention.
Another characteristic of the implant fixture according to the present invention is that the concave groove has a curvature radius different from that of an inner curved surface and an outer curved surface with respect to a ceiling.
The radius of curvature of the outer curved surface is larger than the radius of curvature of the inner curved surface, and the height of the ceiling of the recessed groove is 0.05 to 0.25 mm from the upper end of the body, according to another aspect of the present invention.
According to the present invention, since the concave flange formed by curving the lower surface of the head portion of the implant fixture is provided, even if the length of the side projecting portion of the head portion is short, the area of contact with the alveolar bone is sufficient. When the hole is formed in the alveolar bone, the anchor is fixed and the bone can be implanted concurrently by inserting the hole. The asymmetric concave flange or the cut concave flange causes a groove on one side or both sides of the ball and tongue direction, The implant can be implanted without bone grafting, and since the edge of the concave flange is fixed to the alveolar bone with an anchor, it can be applied not only to the separation type but also to the integral type.
FIG. 1 is a perspective view of an implant fixture according to an embodiment of the present invention, together with a partial cross-sectional view and a plan view of the head portion.
FIG. 2 is a cross-sectional view showing a concave flange of the implant fixture according to FIG. 1 inserted into the cortical bone at a certain depth.
FIG. 3 is a cross-sectional view showing a state where the implant fixture according to FIG. 1 is inserted into the alveolar bone hole.
4 is a perspective view of an implant fixture having an asymmetric concave flange according to another embodiment of the present invention, together with a top view of the head portion.
5 is a perspective view of an implant fixture having a cut concave flange according to another embodiment of the present invention, together with a top view of the head portion.
FIG. 6 is a perspective view of the implant fixture according to each embodiment of the present invention, viewed from above the alveolar bone, according to the state of the alveolar bone.
7 is a perspective view showing an example in which the concave flange of the implant fixture according to the present invention is applied to the separable outer protruding type (a) and the integral type (b).
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 7, the implant fixture according to the present invention includes a
Here, the
The shape of the
In addition, the outer surface of the
The material of the
The
First, as shown in FIGS. 1 to 6, a
7 (b), the
1 to 6, a description will be given mainly to an embodiment of a removable implant-in-place fixture, but the content of the
As shown in Fig. 1, the
2, when the
The
1, the
The
1 to 3 show an example in which the tip of the
1 and 2, the distal end of the circular tip may be positioned at the same height as the upper end of the
The
In the above embodiment, the
Therefore, even if the side length L of the
3 and 6 (b), when the
4 shows a perspective view of the
The asymmetric concave flange 23 'has the feature of the above-mentioned concave flange (the concave groove is symmetrical with respect to the body portion as the central axis), and the edge is protruded downward (toward the right in FIG. 4) And has a horseshoe-shaped tip structure.
Here, it is preferable that the front end of one side of the horseshoe-shaped tip is further lowered below a predetermined depth D from the upper end of the
The asymmetric concave flange 23 'is deflected to one side from the center of the
The asymmetric concave flange 23 'shown in FIG. 4 is formed such that the
5 shows, in another embodiment, a perspective view of the
The cut
Also, it is preferable that the end of the arc-shaped tip is further lowered below a predetermined depth D from the upper end of the
The cut concave flange 23 '' has an arc-shaped tip projecting downward from both sides with respect to the
In the above-described embodiments, it is preferable that the length L protruding to the side of each
1, the
For example, as shown in FIG. 1, the curvature radius of the outer
The height H of the
As described above, the
While the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it is to be noted that the technical spirit of the present invention is not limited to the structure of the accompanying drawings. In addition, the contents generally known in relation to the implant fixture should be regarded as being omitted. Therefore, the present invention is not limited to the interpretation of the technical idea of the present invention.
10:
20, 20 ', 20 ": head portion 21: concave groove
22: upper surface of head portion 23: concave flange
24: hexagonal fastening groove 25: upper face of the concave flange
26: hexagonal protrusion 28: abutment
100, 101, 102, 103, 104: Implant fixture
200: cancellous bone 300: cortical bone
310: Alveolar bone hole 400: Gum
Claims (8)
Wherein the head portion has a concave flange protruding a predetermined length from a side surface thereof,
Wherein the concave flange has a concave groove formed in a lower surface thereof,
Wherein the concave groove is formed symmetrically with the body part as a central axis.
Wherein the concave groove is formed between an upper end of the body portion and an edge of the concave flange,
Wherein an upper surface of the concave flange is symmetrical with respect to a center axis of the body portion and is inclined downward toward an edge.
The edge of the concave flange is a circular tip protruding downward,
Wherein an end of the circular tip is further lowered below a predetermined depth from an upper end of the body portion.
Wherein an edge of the concave flange is a horseshoe tip protruding downwardly toward one side,
Wherein a front end of the horseshoe-shaped tip is further lowered below a predetermined depth from an upper end of the body portion.
Wherein the concave flange has a cut surface cut at a predetermined distance on opposite sides of the concave flange and an edge except for the cut surface forms an arc tip protruding downward,
And an end of the arc-shaped tip is further lowered from the upper end of the body part to a certain depth below the implant.
Wherein the protruding length of the side surface of the concave flange is 0.1 to 0.5 mm.
Wherein the concave groove has a curvature radius different from that of an inner curved surface and an outer curved surface with respect to a ceiling.
Wherein the curvature radius of the outer curved surface is larger than the curvature radius of the inner curved surface,
And the height of the ceiling of the concave groove is 0.05 to 0.25 mm from the upper end of the body part.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170089476A KR101972980B1 (en) | 2017-07-14 | 2017-07-14 | Implant fixture having concave flange for anchor |
PCT/KR2017/009265 WO2019013388A1 (en) | 2017-07-14 | 2017-08-24 | Implant fixture having concave flange for anchor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170089476A KR101972980B1 (en) | 2017-07-14 | 2017-07-14 | Implant fixture having concave flange for anchor |
Publications (2)
Publication Number | Publication Date |
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KR20190007873A true KR20190007873A (en) | 2019-01-23 |
KR101972980B1 KR101972980B1 (en) | 2019-04-26 |
Family
ID=65002077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020170089476A KR101972980B1 (en) | 2017-07-14 | 2017-07-14 | Implant fixture having concave flange for anchor |
Country Status (2)
Country | Link |
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KR (1) | KR101972980B1 (en) |
WO (1) | WO2019013388A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07328041A (en) * | 1994-06-15 | 1995-12-19 | Nikon Corp | Therapeutic upper structure |
US6287117B1 (en) * | 1999-04-22 | 2001-09-11 | Sulzer Dental Inc. | Endosseous dental implants including a healing screw and an optional implant extender |
KR20100037523A (en) * | 2008-10-01 | 2010-04-09 | 이도상 | Implant fixture |
KR20120027604A (en) * | 2010-09-13 | 2012-03-22 | 오스템임플란트 주식회사 | Temporary clamping member for guided bone regeneration implant theraphy |
KR101327655B1 (en) * | 2013-03-08 | 2013-11-13 | 한림대학교 산학협력단 | Implant fixture for stress dispersion |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2557581T3 (en) * | 2010-12-23 | 2016-01-27 | Straumann Holding Ag | Enhanced Screw Head |
-
2017
- 2017-07-14 KR KR1020170089476A patent/KR101972980B1/en active IP Right Grant
- 2017-08-24 WO PCT/KR2017/009265 patent/WO2019013388A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07328041A (en) * | 1994-06-15 | 1995-12-19 | Nikon Corp | Therapeutic upper structure |
US6287117B1 (en) * | 1999-04-22 | 2001-09-11 | Sulzer Dental Inc. | Endosseous dental implants including a healing screw and an optional implant extender |
KR20100037523A (en) * | 2008-10-01 | 2010-04-09 | 이도상 | Implant fixture |
KR20120027604A (en) * | 2010-09-13 | 2012-03-22 | 오스템임플란트 주식회사 | Temporary clamping member for guided bone regeneration implant theraphy |
KR101327655B1 (en) * | 2013-03-08 | 2013-11-13 | 한림대학교 산학협력단 | Implant fixture for stress dispersion |
Also Published As
Publication number | Publication date |
---|---|
KR101972980B1 (en) | 2019-04-26 |
WO2019013388A1 (en) | 2019-01-17 |
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