JP3410126B2 - Root surface member for denture stabilization - Google Patents
Root surface member for denture stabilizationInfo
- Publication number
- JP3410126B2 JP3410126B2 JP33028392A JP33028392A JP3410126B2 JP 3410126 B2 JP3410126 B2 JP 3410126B2 JP 33028392 A JP33028392 A JP 33028392A JP 33028392 A JP33028392 A JP 33028392A JP 3410126 B2 JP3410126 B2 JP 3410126B2
- Authority
- JP
- Japan
- Prior art keywords
- root
- holding plate
- holding
- denture
- main body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- 239000000696 magnetic material Substances 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 3
- 230000001681 protective effect Effects 0.000 claims 2
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 239000007943 implant Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 210000001215 vagina Anatomy 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Dental Prosthetics (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は永久磁石による磁気吸引
力を利用して義歯を保持する補綴方法に使用するために
義歯安定用根面部材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root member for stabilizing a denture for use in a prosthetic method for holding a denture by utilizing a magnetic attraction force of a permanent magnet.
【０００２】[0002]
【従来の技術】義歯を口膣内に固定するに際して、永久
磁石と軟磁性合金との間の作用する磁気吸引力を利用す
る試みは従来からすでに種々行なわれており、例えば
「Ｔ．Ｒ．Ｊａｃｋｓｏｎ：オッセオインテグレーテッ
ド・インプラントに対しての希土類磁石による維持装置
の応用、オーラル・マキシロフェイシャル・インプラン
ト、Vol.1(1987)、No.2、77〜89頁」に種々記載されてい
る。図３は永久磁石の磁気吸引力を利用した義歯固定手
段の例を示す要部縦断断面図である。図３において、１
は根面部材であり、例えば金合金のような耐食性非磁性
材料により、例えば縦断面形状をＴ字形に形成すると共
に、歯根２内に埋設する。３は保持板であり、例えばＳ
ＵＳ４４７Ｊ１のような耐食性磁性ステンレス鋼により
円板状に形成して、根面部材１の端部に鋳ぐるみにより
一体に埋設する。次に４は義歯床であり、義歯５を植設
すると共に前記根面部材１と対向するように永久磁石組
立体６を埋設してある。永久磁石組立体６は、例えば耐
食性磁性ステンレス鋼からなるケース７内に永久磁石８
を蓋板９を介して密閉封止して形成する。上記の構成に
より、永久磁石組立体６と根面部材１との間には磁気的
吸引力が作用し、この磁気的吸引力によって義歯床４は
歯根２に押し付けられ、義歯５を口膣内に安定させるこ
とができるのである。2. Description of the Related Art Various attempts have been made in the past to utilize a magnetic attraction force acting between a permanent magnet and a soft magnetic alloy when fixing a denture in the vagina of the mouth. Jackson: Application of Rare Earth Magnet Sustainer for Osseo Integrated Implants, Oral Maxirofacial Implants, Vol. 1 (1987), No. 2, pp. 77-89 " . FIG. 3 is a longitudinal sectional view of an essential part showing an example of artificial tooth fixing means using the magnetic attraction force of a permanent magnet. In FIG. 3, 1
Is a root member, and is made of, for example, a corrosion-resistant non-magnetic material such as a gold alloy, and has a vertical cross section of, for example, a T shape and is embedded in the tooth root 2. 3 is a holding plate, for example, S
It is formed into a disk shape from corrosion-resistant magnetic stainless steel such as US447J1 and is integrally embedded in the end portion of the root member 1 by means of cast gurney. Next, 4 is a denture base, in which a denture 5 is implanted and a permanent magnet assembly 6 is embedded so as to face the root member 1. The permanent magnet assembly 6 includes a permanent magnet 8 in a case 7 made of, for example, corrosion-resistant magnetic stainless steel.
Is hermetically sealed via a lid plate 9. With the above configuration, a magnetic attractive force acts between the permanent magnet assembly 6 and the root member 1, and the denture base 4 is pressed against the root 2 by this magnetic attractive force, so that the denture 5 is placed in the oral vagina. It can be stabilized.
【０００３】[0003]
【発明が解決しようとする課題】上記構成の義歯固定手
段は義歯床４の保持が確実であると共に、義歯床の着脱
が容易である一方において、この義歯固定手段を適用し
た個人が、例えばＭＲＩ（磁気共鳴診断装置）を利用す
る場合には、画像が乱れるため、正確な診断ができない
という問題点がある。すなわち義歯床４と共に永久磁石
組立体６を除去しても、根面部材１の端部に軟磁性材料
からなる保持板３が設けられているため、ＭＲＩにおけ
る画像を乱すこととなる。そしてこの保持板３は根面部
材１に鋳ぐるみ若しくは鋳接によって一体に設けられて
いるため、簡単には取外すことができない。従って、永
久磁石による磁気吸引力を利用した義歯固定手段を適用
した個人には、ＭＲＩによる診断ができないという問題
点がある。本発明は上記従来技術に存在する問題点を解
決し、ＭＲＩによる画像の乱れを発生することなく、正
確な診断が可能である義歯安定用根面部材を提供するこ
とを目的とする。While the denture fixing means having the above-mentioned structure is capable of securely holding the denture base 4 and easily attaching and detaching the denture base, an individual applying the denture fixing means, for example, MRI. When the (magnetic resonance diagnostic apparatus) is used, there is a problem that an accurate diagnosis cannot be performed because the image is disturbed. That is, even if the permanent magnet assembly 6 is removed together with the denture base 4, since the holding plate 3 made of a soft magnetic material is provided at the end of the root member 1, the image in MRI is disturbed. Since the holding plate 3 is integrally formed with the root member 1 by casting or welding, it cannot be easily removed. Therefore, there is a problem in that an individual applying the artificial tooth fixing means utilizing the magnetic attraction force of the permanent magnet cannot diagnose by MRI. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems existing in the prior art, and to provide a root surface member for stabilizing a denture that enables accurate diagnosis without causing image distortion due to MRI.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明においては、歯根内に埋設された非磁性材料
からなる本体と、この本体の端面に設けた軟磁性材料か
らなる保持板とからなる義歯安定用根面部材において、
保持板を根面部材本体から着脱可能に、かつネジが緩み
にくいという技術手段を採用した。即ち、本発明は、歯
根内に埋設された非磁性材料からなる本体と、この本体
の端面に設けた軟磁性材料からなる保持板とからなる義
歯安定用根面部材において、前記根面部材本体に下部に
めねじを有し上部には沈み穴を備えた凹孔を設け、この
凹孔に頭付き平小ネジ形状の保持板を螺着するとき、前
記沈み穴に前記保持板の頭部を当接させて係止した義歯
安定用根面部材である。また、本発明は、歯根内に埋設
された非磁性材料からなる本体と、この本体の端面に設
けた軟磁性材料からなる保持板とからなる義歯安定用根
面部材において、前記根面部材本体に凹穴を設け、この
凹穴内にめねじを有し非磁性材料からなる保持部材を鋳
ぐるみ若しくは鋳接によって一体に設け、前記保持部材
に頭付き平小ネジ形状の保持板を螺着するとき、前記保
持部材の上端面に前記保持板の頭部を当接させて係止し
た義歯安定用根面部材である。このように、根面部材本
体と保持板はねじで取り付けられているので保持板の回
転により本体から取り外すことが出来る。また、螺着す
る際は頭付き平小ネジ形状の保持板の頭部分を沈み穴の
肩部分あるいは保持部材の上端面に当接させているので
無理なねじ込みが防止され、かつ面接触による抵抗力が
増してねじが緩みにくくなる。In order to achieve the above object, in the present invention, a main body made of a non-magnetic material embedded in a tooth root and a holding plate made of a soft magnetic material provided on an end surface of the main body. In the root member for stabilizing the denture consisting of
We adopted a technical means that the holding plate can be attached to and detached from the root surface member body, and the screws are hard to loosen. That is, the present invention provides a root surface member for stabilizing a denture, which comprises a main body made of a non-magnetic material embedded in a tooth root and a holding plate made of a soft magnetic material provided on an end surface of the main body, wherein A recessed hole with a female screw in the lower part and a sunk hole in the upper part is provided, and when a flat head screw holding plate with a head is screwed into this recessed hole, the head of the holding plate is inserted into the sunk hole. Is a root surface member for stabilizing a denture which is brought into contact with and locked. Further, the present invention is a root surface member for stabilizing a denture, comprising a main body made of a non-magnetic material embedded in a tooth root, and a holding plate made of a soft magnetic material provided on an end surface of the main body, wherein the root surface member main body is provided. A recessed hole is provided in the recessed hole, and a holding member made of a non-magnetic material and having a female screw in the recessed hole is integrally provided by casting or casting, and a flat head screw holding plate with a head is screwed to the holding member. At this time, it is a root surface member for stabilizing a denture in which the head portion of the holding plate is brought into contact with and locked to the upper end surface of the holding member. In this way, the root member main body and the holding plate are attached by screws, so that they can be removed from the main body by rotating the holding plate. Also, when screwing, the head part of the flat small screw-shaped holding plate with the head is brought into contact with the shoulder part of the sink hole or the upper end surface of the holding member, so that excessive screwing is prevented and resistance due to surface contact The force increases and the screws are hard to loosen.
【０００５】[0005]
【実施例】図１は、本発明の第１実施例を示す要部縦断
面図である。図１において１０は凹孔であり、頭付き平
小ネジ形状をした保持板３を螺着するためのめねじ１１
を備えた凹孔であり、めねじ部１１と、ネジの頭部の沈
み穴１２からなっている。また、保持板３は頭付き平小
ネジ形状をしており、おねじ１３が設けてあり頭部は十
字穴または六角穴が付けてある。上記の構成により、図
１に示すように保持板３のおねじ１３を凹孔１０のめね
じ１１にねじ込んで保持板３を根面部材本体１に螺合さ
せる。このとき、十字穴又は六角穴に係合するドライバ
を使用すると好ましく、頭付き平小ネジ形状をした保持
板３の頭部を沈み穴１２部分に当接させて保持板を固定
している。そして、保持板３を除去する場合には、ドラ
イバにより保持板３を上記と逆方向に回転させればよ
い。保持板３の除去により、根面部材１による磁界錯乱
の作用がなくなるから、例えば、ＭＲＩ利用によっても
正確な診断が出来る。図２は、本発明の第２実施例を示
す要部縦断面図である。図２において、１４は保持部材
であり、非磁性材料により形成されめねじを備えた凹孔
１５を有している。この保持部材１４は根面部材１の端
部に鋳ぐるみ若しくは鋳接によって一体に設けられてい
る。そして、保持板３のおねじを前記保持部材のめねじ
に螺合させ、保持板の頭部を根面部材の凹孔に嵌合させ
保持部材の上端面に当接させて保持板を固定している。
これによって、保持板３の着脱操作は上記第１実施例と
同様に行うことができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a longitudinal sectional view of a main part of a first embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a recessed hole, which is a female screw 11 for screwing a holding plate 3 having a flat head machine screw shape with a head.
Is a concave hole provided with a female screw portion 11 and a sink hole 12 at the head of the screw. Further, the holding plate 3 has a flat small screw shape with a head, is provided with a male screw 13, and the head has a cross hole or a hexagonal hole. With the above configuration, as shown in FIG. 1, the male screw 13 of the holding plate 3 is screwed into the female screw 11 of the recessed hole 10 to screw the holding plate 3 into the root member main body 1. At this time, it is preferable to use a driver that engages the cross hole or the hexagonal hole, and the head of the holding plate 3 having a flat head machine screw shape is brought into contact with the sink hole 12 to fix the holding plate. When removing the holding plate 3, the driver may rotate the holding plate 3 in the opposite direction. By removing the holding plate 3, the action of magnetic field confusion by the root member 1 is eliminated, so that accurate diagnosis can be performed by using, for example, MRI. FIG. 2 is a longitudinal sectional view of a main part showing a second embodiment of the present invention. In FIG. 2, reference numeral 14 is a holding member, which has a concave hole 15 formed of a non-magnetic material and having a female screw. The holding member 14 is integrally provided on the end portion of the root member 1 by casting or casting. Then, the male screw of the holding plate 3 is screwed into the female screw of the holding member, and the head of the holding plate is fitted into the concave hole of the root surface member and brought into contact with the upper end surface of the holding member to fix the holding plate. is doing.
As a result, the attaching / detaching operation of the holding plate 3 can be performed in the same manner as in the first embodiment.
【０００６】[0006]
【発明の効果】上記の構成により、保持板を根面部材と
着脱可能とし、義歯床装置時においては所定の保持力を
維持する一方、ＭＲＩ利用等磁気的特性に影響を及ぼす
おそれがあるときには、保持板を除去できるという作用
を期待できる。本発明は以上記述するような構成および
作用であるから、義歯床の保持力を低下させることな
く、ＭＲＩ等の磁界応用装置の利用時においても画像の
乱れを発生せず、正確な診断結果が得られるという効果
がある。With the above structure, the holding plate can be attached to and detached from the root surface member, and a predetermined holding force is maintained at the time of a denture base device, while there is a possibility that magnetic properties such as MRI use may be affected. It can be expected that the holding plate can be removed. Since the present invention has the configuration and operation as described above, it does not reduce the holding power of the denture base, does not cause image distortion even when using a magnetic field application device such as MRI, and provides accurate diagnostic results. It has the effect of being obtained.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第１実施例を示す要部縦断面図であ
る。FIG. 1 is a longitudinal sectional view of a main part showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示す要部断面図である。FIG. 2 is a sectional view of an essential part showing a second embodiment of the present invention.
【図３】永久磁石の磁気吸引力を利用した義歯固定手段
の例を示す要部縦断面図である。FIG. 3 is a longitudinal cross-sectional view of essential parts showing an example of artificial tooth fixing means using magnetic attraction of a permanent magnet.
【符号の説明】 １ 根面部材 ３ 保持板 １０ 凹穴 １１ めねじ １２ 沈み穴 １３ おねじ[Explanation of symbols] 1 Root member 3 holding plate 10 recessed holes 11 Female thread 12 sunken holes 13 male screw
Claims (2)
本体と、この本体の端面に設けた軟磁性材料からなる保
持板とからなる義歯安定用根面部材において、前記根面
部材本体に下部にめねじを有し上部には沈み穴を備えた
凹孔を設け、この凹孔に頭付き平小ネジ形状の保持板を
螺着するとき、前記沈み穴に前記保持板の頭部を当接さ
せて係止したことを特徴とする義歯安定用根面部材。1. A non-magnetic material embedded in a tooth root
The main body and a protective material made of soft magnetic material provided on the end surface of the main body.
In a root member for stabilizing a denture , which comprises a holding plate , the root surface
When provided <br/> concavity having a sink hole in the upper has a female screw at the bottom to the member body, screwed to the holding plate of the headed flat machine screw shape to the recessed hole, the sink hole Touch the head of the holding plate
Allowed to denture stabilizing root surface member, characterized in that the locking.
本体と、この本体の端面に設けた軟磁性材料からなる保
持板とからなる義歯安定用根面部材において、前記根面
部材本体に凹穴を設け、この凹穴内にめねじを有し非磁
性材料からなる保持部材を鋳ぐるみ若しくは鋳接によっ
て一体に設け、前記保持部材に頭付き平小ネジ形状の保
持板を螺着するとき、前記保持部材の上端面に前記保持
板の頭部を当接させて係止したことを特徴とする義歯安
定用根面部材。2. A non-magnetic material embedded in a tooth root
The main body and a protective material made of soft magnetic material provided on the end surface of the main body.
In a root member for stabilizing a denture, which comprises a holding plate, the root surface
A concave hole is formed in the body of the member, and a female screw is placed in this concave hole to
A holding member made of a flexible material by casting or welding.
When the holding flat head screw type holding plate is screwed to the holding member, the holding member is held on the upper end surface of the holding member.
Denture stabilizing root surface member, characterized in that the locking by contacting the head of the plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33028392A JP3410126B2 (en) | 1992-12-10 | 1992-12-10 | Root surface member for denture stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33028392A JP3410126B2 (en) | 1992-12-10 | 1992-12-10 | Root surface member for denture stabilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06169935A JPH06169935A (en) | 1994-06-21 |
| JP3410126B2 true JP3410126B2 (en) | 2003-05-26 |
Family
ID=18230924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33028392A Expired - Lifetime JP3410126B2 (en) | 1992-12-10 | 1992-12-10 | Root surface member for denture stabilization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3410126B2 (en) |
-
1992
- 1992-12-10 JP JP33028392A patent/JP3410126B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06169935A (en) | 1994-06-21 |
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