JPH01303145A - Artificial tooth attachment - Google Patents
Artificial tooth attachmentInfo
- Publication number
- JPH01303145A JPH01303145A JP13473788A JP13473788A JPH01303145A JP H01303145 A JPH01303145 A JP H01303145A JP 13473788 A JP13473788 A JP 13473788A JP 13473788 A JP13473788 A JP 13473788A JP H01303145 A JPH01303145 A JP H01303145A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic alloy
- yokes
- spacer
- attachment
- denture
- 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.)
- Granted
Links
- 229910001004 magnetic alloy Inorganic materials 0.000 claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims description 19
- 230000007797 corrosion Effects 0.000 claims description 18
- 230000035699 permeability Effects 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000120 Artificial Saliva Substances 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 241001026509 Kata Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- SYHGEUNFJIGTRX-UHFFFAOYSA-N methylenedioxypyrovalerone Chemical compound C=1C=C2OCOC2=CC=1C(=O)C(CCC)N1CCCC1 SYHGEUNFJIGTRX-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000003456 pulmonary alveoli Anatomy 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Landscapes
- Dental Prosthetics (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、義歯を根面板に安定に保持することができる
義歯アタッチメントに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a denture attachment that can stably hold a denture to a root plate.
従来、磁気吸引力を利用した義歯としては１例えば第７
図及び第８図に示されるものが提案されている（特開昭
６２−２３１６５３号公報）。この義歯は、歯槽９１内
の根９２に埋設した磁性材料からなる根面板９３に対向
するように、義歯部９５を設けたものである。しかして
、ごの義歯部９５は、下方にプラスチツクス等からなる
義歯床９４を有し、該義歯床９４内には、前記根面板９
３に対向する位置に義歯アタッチメント８を有している
。該義歯アタッチメント８は第８図に示すごとく、上方
部に突起８３を存するステンレス鋼製ケース８１の中に
、磁石体８２を配設したものである。しかして、上記磁
石体８２としては１強力な磁力を有するＳｍ（サマリウ
ム）−Ｃｏ（コバルト）系等の希土類磁石が用いられて
いる。Conventionally, as a denture using magnetic attraction force, 1, for example, the 7th
What is shown in FIG. 8 and FIG. 8 has been proposed (Japanese Unexamined Patent Publication No. 62-231653). This denture is provided with a denture portion 95 facing a root plate 93 made of a magnetic material and embedded in a root 92 in an alveolus 91. The denture part 95 has a denture base 94 made of plastic or the like on the lower side, and inside the denture base 94, the root plate 9 is provided.
It has a denture attachment 8 at a position opposite to 3. As shown in FIG. 8, the denture attachment 8 has a magnet body 82 disposed inside a stainless steel case 81 having a projection 83 on the upper part. As the magnet body 82, a rare earth magnet such as Sm (samarium)-Co (cobalt) type magnet having a strong magnetic force is used.
［解決しようとする課題］
しかしながら、従来の磁石体は、いずれもその磁気吸引
力が２００ｇ〜３００ｇ程度と低い、この吸引力は、旧
来より多用されている。生歯間にバネで機械的に保持す
る場合の５００ｇ以上の力に対して低い。[Problem to be Solved] However, all conventional magnet bodies have a low magnetic attraction force of about 200 g to 300 g, and this attraction force has been widely used for a long time. It is lower than the force of 500g or more when mechanically held between natural teeth with a spring.
また、磁石体は口腔内で腐食し易いため１希土類磁石が
口腔内に露出している場合には、磁石体が錆びて象、速
な吸引力の減衰と共に安全上も問題があった。また、防
錆のために、前記公報のごとく、ステンレス鋼等の非磁
性合金のケースで磁石体全体を被覆した場合には、磁石
体と根面板との間に非磁性合金が介在するため、吸引力
が低下してしまう。In addition, since the magnet body is easily corroded in the oral cavity, if a rare earth magnet is exposed in the oral cavity, the magnet body will rust and the attractive force will quickly decrease, which also poses a safety problem. In addition, when the entire magnet body is covered with a case made of a non-magnetic alloy such as stainless steel for rust prevention as in the above-mentioned publication, the non-magnetic alloy is interposed between the magnet body and the root plate. Suction power decreases.
更に、希土類磁石を粉末焼結体となし、これを同様に非
磁性合金の箔で保護する提案もあるが。Furthermore, there is also a proposal to make a rare earth magnet into a powder sintered body and protect it with a non-magnetic alloy foil.
根面板との直接接触によって非磁性合金が破…してしま
い、実用に耐えない。The non-magnetic alloy is destroyed by direct contact with the base plate, making it unusable.
本発明はかかる問題点に迄み、小型で吸引力が大きく、
シかも耐食性、耐摩耗性に優れた義歯アタッチメントを
提供しようとするものである。The present invention solves these problems by being small in size and having a large suction power.
The purpose of this invention is to provide a denture attachment with excellent corrosion resistance and wear resistance.
［課題の解決手段］
本発明は、歯根部に埋設した軟磁性合金からなる根面板
に対向するように義歯床内に埋設する義歯アタッチメン
トであって、該アタッチメントは上記根面板に向けて立
設した耐食軟磁性合金からなる一対のヨークと、該一対
のヨークの間において根面板側に設けた耐食非磁性合金
からなるスペーサ及び該スペーサの反根面板側にＳｉと
Ｎ極を上記両ヨークに対向させて設けた磁石体と、上記
一対のヨーク及びスペーサの根面板側を除いて被冠した
耐食非磁性合金からなるケースとよりなることを特徴と
する義歯アタッチメントにある。[Means for Solving the Problems] The present invention provides a denture attachment that is embedded in a denture base so as to face a root plate made of a soft magnetic alloy embedded in a tooth root, and the attachment is erected toward the root plate. a pair of yokes made of a corrosion-resistant soft magnetic alloy, a spacer made of a corrosion-resistant non-magnetic alloy provided on the root plate side between the pair of yokes, and Si and N poles on the opposite root plate side of the spacer to both the yokes. The denture attachment is characterized by comprising magnet bodies arranged to face each other, and a case made of a corrosion-resistant non-magnetic alloy which is covered with the pair of yokes and the spacer except for the root plate side.
本発明の義歯アタッチメントは、第１図に模型的に示す
ごと＜、根面板９３に対向する面に一対のヨーク１１．
１１を立設し１両ヨークの間においてその下方にはスペ
ーサ１３を該スペーサ１３の上には磁石体１２を配置し
、根面板９３に面する側を除いてその周囲をケース１４
により被冠するものである。しかして、上記磁石体１２
は、そのＳ極とＮ極とを根面板と平行方向に配置する。As schematically shown in FIG. 1, the denture attachment of the present invention has a pair of yokes 11 on the surface facing the root plate 93.
A spacer 13 is placed below the yoke between the two yokes, a magnet 12 is placed above the spacer 13, and a case 14 is placed around the yoke except for the side facing the base plate 93
It is covered by However, the magnet body 12
The S and N poles are arranged in a direction parallel to the root plate.
また、ヨークとしては耐食軟磁性合金を、スペーサ及び
ケースは非磁性合金を用いる。Further, a corrosion-resistant soft magnetic alloy is used for the yoke, and a nonmagnetic alloy is used for the spacer and the case.
次に、前記磁石体としては、最大エネルギー積が２０Ｍ
ＧＯｅ （メガ・ガウス・エルステッド）以上である希
土類磁石を用いることが好ましい。Next, the maximum energy product of the magnet is 20M.
It is preferable to use a rare earth magnet that is GOe (mega Gauss Oersted) or higher.
これにより、約５００ｇ以上の吸引力を有するアタッチ
メントとすることができる。かかる希土類磁石としては
、ＳｍＣｏ５ 、Ｓｍｔ ＣｏａｔなどのＳｍ−Ｃｏ系
合金、Ｎｂ−Ｆｅ−Ｂ系合金などがある。This allows the attachment to have a suction force of about 500 g or more. Examples of such rare earth magnets include Sm-Co alloys such as SmCo5 and Smt Coat, and Nb-Fe-B alloys.
また、ヨークの軟磁性合金としては、飽和磁束密度１３
０００Ｇ以上、透磁率３０００以上のものを用いること
が好ましい。かかる特性を存するヨークの軟磁性合金と
しては、純鉄、１３Ｃｒ−２Ｍｏ鋼、１７ｃｒ−２Ｍｏ
鋼などがある。また。In addition, the soft magnetic alloy of the yoke has a saturation magnetic flux density of 13
It is preferable to use a material with a magnetic permeability of 3,000 or more and a magnetic permeability of 3,000 or more. Soft magnetic alloys for the yoke that have such characteristics include pure iron, 13Cr-2Mo steel, and 17cr-2Mo steel.
There are steel etc. Also.
ヨークの軟磁性合金の飽和磁束密度が２００００Ｇ以上
の場合には７更に吸引力が増大する。かかる、軟磁性合
金としては純鉄がある。When the saturation magnetic flux density of the soft magnetic alloy of the yoke is 20,000 G or more, the attractive force further increases. An example of such a soft magnetic alloy is pure iron.
また、スペーサ及びケースの非磁性合金としては、透磁
率１．２以下のものを用いることが好ましい。かかる特
性を有する非磁性合金としては。Further, as the nonmagnetic alloy for the spacer and the case, it is preferable to use one with a magnetic permeability of 1.2 or less. As a non-magnetic alloy with such characteristics.
１７Ｃｒ−１２Ｎｉ−２Ｍｏｍ、チタン合金等がある。Examples include 17Cr-12Ni-2Mom and titanium alloy.
更に、該義歯アタッチメントにおいて、その下面、つま
り根面板と面する側は、耐食性防錆メッキを施しておく
ことが好ましい。かかる防錆メッキとしては、厚み５〜
３０μｍのクロム（Ｃｒ）メッキ、無電解メッキなどが
ある。更に１機械的。Further, in the denture attachment, it is preferable that the lower surface thereof, that is, the side facing the root plate, be provided with corrosion-resistant and rust-proof plating. Such anti-corrosion plating has a thickness of 5~
Examples include 30 μm chromium (Cr) plating and electroless plating. 1 more mechanical.
化学的耐久性を高めるために、ケース、スペーサと２つ
のヨークとはロウ付は又は溶接することが好ましい。In order to increase chemical durability, the case, spacer and two yokes are preferably brazed or welded.
本発明の義歯アタッチメントにおいては、１面板に対し
て垂直な一対のヨークの間に希土類磁石の磁石体を配置
し、かつ該磁石体の下面（１面板対向面）には非磁性合
金のスペーサを配置している。そのため、２つのヨーク
と根面板との間に大きな吸引力を発生させることができ
る。即ち、根面板と一対のヨークには軟磁性合金を用い
ているので１Ｍ１気回路を閉磁路化して、根面板と義歯
アタッチメント間の吸引力を高めているのである。In the denture attachment of the present invention, a rare earth magnet is arranged between a pair of yokes perpendicular to the first plate, and a spacer made of a non-magnetic alloy is provided on the lower surface of the magnet (the surface facing the first plate). It is placed. Therefore, a large suction force can be generated between the two yokes and the root plate. That is, since a soft magnetic alloy is used for the root plate and the pair of yokes, the 1M1 air circuit is made into a closed magnetic circuit, thereby increasing the attractive force between the root plate and the denture attachment.
なお、上記希土類磁石は、前記のごとく最大エネルギー
積が大きい程、上記吸引力は大きくなる。Note that, as described above, the larger the maximum energy product of the rare earth magnet, the larger the attractive force.
また、スペーサ及び前記ケースは、ヨークと根面板との
間には介在せず、かつ非磁性合金により構成しているの
で、根面板とヨーク間に働く磁力を乱すことがなく、正
常な強い吸引力を確保することができる。また、優れた
吸引力を有するので小型化することもできる。In addition, since the spacer and the case are not interposed between the yoke and the root plate and are made of a non-magnetic alloy, they do not disturb the magnetic force acting between the root plate and the yoke, allowing normal strong attraction. power can be secured. Moreover, since it has excellent suction power, it can also be made smaller.
また、該義歯アタッチメントは、根面板に面する側を除
いて前記ケースで被冠しており、またヨーク間に配した
磁石体の下方は前記スペーサにより遮蔽しているので、
優れた耐食性を得ることができる。また、アタッチメン
トは、一対のヨークとスペーサにより根面板と接触し、
磁石体は根面板と直接接触しないので、優れた耐摩耗性
を発揮する。Further, the denture attachment is covered with the case except for the side facing the root plate, and the lower part of the magnet body arranged between the yokes is shielded by the spacer, so that
Excellent corrosion resistance can be obtained. In addition, the attachment is in contact with the root plate through a pair of yokes and spacers,
Since the magnet body does not come into direct contact with the root plate, it exhibits excellent wear resistance.
上記のごとく５本発明によれば、吸引力、耐食性、耐摩
耗性に優れた。また小型の義歯アタッチメントを得るこ
とができる。As mentioned above, according to the present invention, suction power, corrosion resistance, and abrasion resistance are excellent. Also, a small denture attachment can be obtained.
また、第２請求項の発明によれば、上記効果の他、更に
強い吸引力を発揮させることができる。Further, according to the second aspect of the invention, in addition to the above-mentioned effects, even stronger suction force can be exerted.
また、第３請求項の発明によれば、前記第１請求項の発
明の効果の他、更に優れた強い吸引力を発揮させること
ができる。Further, according to the third aspect of the invention, in addition to the effect of the first aspect of the invention, it is possible to exert an even more excellent strong suction force.
更に、第４請求項の発明によれば、前記第１請求項の発
明の効果の他、更に優れた吸引力及び耐食性を発揮させ
ることができる。Furthermore, according to the fourth aspect of the invention, in addition to the effects of the first aspect of the invention, even better suction power and corrosion resistance can be exhibited.
〔実施例］
第１実施例
本例にかかる義歯アタッチメントにつき、第１図及び第
２図を用いて、主として構造について説明する。[Example] First Example The structure of the denture attachment according to this example will be mainly explained with reference to FIGS. 1 and 2.
本例のアタッチメントは、根面板９３に対向して垂直に
立設した一対のヨーク１１．１１と、該ヨーク１１．１
１の間において下方に設けたスペーサ１３及び該ス′ペ
ーサ１３の上に設けた磁石体１２とよりなり、かつ根面
板に対面する下面を除いて全周囲を箱状のケース１４に
より被冠してなる。また、注目すべきことは、磁石体１
２はＳ極とＮ極が両側のヨーク１１．１１に面して配置
されていることである。The attachment of this example includes a pair of yokes 11.11 vertically arranged opposite to the base plate 93, and the yokes 11.1.
1, and a magnet body 12 provided above the spacer 13, and the entire periphery except for the lower surface facing the root plate is covered with a box-shaped case 14. It becomes. Also, what should be noted is that the magnet body 1
2 is that the south pole and the north pole are arranged facing the yokes 11.11 on both sides.
根面板９３は、軟磁性合金を、ヨーク１１．１１は耐食
軟磁性合金を、スペーサ１３及びケース１４は耐食非磁
性合金を、磁石体１２は希土類磁石を用いている。また
、下端面において、ケース。The base plate 93 is made of a soft magnetic alloy, the yokes 11 and 11 are made of a corrosion-resistant soft magnetic alloy, the spacer 13 and the case 14 are made of a corrosion-resistant non-magnetic alloy, and the magnet body 12 is made of a rare earth magnet. Also, on the lower end surface, the case.
スペーサ、ヨークの間は互いにロウ付けしである。The spacer and yoke are brazed together.
また、該義歯アタッチメント１は高さ、長さが約５ｍｓ
、幅が約４ｆｆＩｌｌである。この大きさは、埋設する
義歯床９４（第７図）の大きさにより適宜室める。また
１本例では大略角柱状のアタッチメントを示したが１円
柱状、楕円柱状、異形柱状等任意である。Moreover, the height and length of the denture attachment 1 are approximately 5 ms.
, the width is approximately 4ffIll. This size is determined as appropriate depending on the size of the denture base 94 (FIG. 7) to be embedded. In addition, in this example, the attachment is approximately prismatic in shape, but it may be in any shape such as a single cylinder, an elliptical cylinder, or an irregularly shaped cylinder.
また、上記構造のアタッチメントにおいて、ヨークの軟
磁性合金の飽和磁束密度と磁石体の最大エネルギー密度
とを変えることによってその吸引力が変化する。これを
第３図及び第４図により示す０両図より知られるごとく
２両特性を選択することにより５００ｇ〜１０００ｇと
いう高い吸引力の義歯アタッチメントを得ることができ
る。Further, in the attachment having the above structure, the attractive force thereof is changed by changing the saturation magnetic flux density of the soft magnetic alloy of the yoke and the maximum energy density of the magnet body. As can be seen from FIGS. 3 and 4, by selecting two characteristics, a denture attachment with a high suction force of 500 g to 1000 g can be obtained.
本例の義歯アタッチメントによれば、前記のごと＜、ｍ
面板９３との間の吸引力が強く、また耐食性、耐摩耗性
に優れ、かつ小型の義歯アタッチメントを得ることがで
きる。According to the denture attachment of this example, as described above, <, m
It is possible to obtain a denture attachment that has a strong suction force with the face plate 93, has excellent corrosion resistance and wear resistance, and is small in size.
第２実施例
本発明に関する３種類の義歯アタッチメント（ｋＡ、Ｂ
及びＣ）を製作し、その吸引力、耐食性１耐摩耗性を測
定した。その構造は、前記第２回と大略同様の角柱状で
ある。各アタッチメントにおける。構成要素の形状、磁
気特性、材料を第１〜第３表に示した。なお、ＮａＣの
アタッチメントは、根面板との対向面におけるヨーク、
ケース。Second Example Three types of denture attachments (kA, B
and C) were manufactured, and their suction power, corrosion resistance, and wear resistance were measured. Its structure is roughly the same as the second one, and is prismatic. in each attachment. The shapes, magnetic properties, and materials of the constituent elements are shown in Tables 1 to 3. Note that the NaC attachment includes a yoke on the surface facing the root plate,
Case.
スペーサの間をクロムメッキ（厚み１０μｍ）しである
。Ｎｌ１Ａ、Ｂはロウ付けのままである。The spaces between the spacers are chromium plated (thickness: 10 μm). Nl1A and B remain soldered.
また、その測定結果を第８表に示した。Moreover, the measurement results are shown in Table 8.
また、比較例として、構造は本発明品と同じであるが、
磁気特性の異なる材料を用いたアタッチメント（ＮＩＩ
Ｄ、 Ｅ）について、その形状等を第４゜第５表に、測
定結果を第８表に示した。In addition, as a comparative example, although the structure is the same as the product of the present invention,
Attachments using materials with different magnetic properties (NII
Regarding D and E), their shapes etc. are shown in Table 4 and Table 5, and the measurement results are shown in Table 8.
更に、従来例として、構造及び材質の異なるアタッチメ
ント（ＮａＦ、 Ｇ）についても、その形状等を第６．
第７表に、測定結果を第８表に示した。Furthermore, as a conventional example, the shape, etc. of attachments (NaF, G) with different structures and materials are shown in Section 6.
Table 7 shows the measurement results, and Table 8 shows the measurement results.
ここに、ＮａＦのアタッチメントは、第５図に示すごと
く、断面逆Ｕ字状のヨーク７１と、その中に上下方向に
Ｓ極とＮ極を配した磁石体７２とよりなる。磁石体７２
は、根面板９３と直接接触する状態にある。また、Ｎａ
Ｇのアタッチメントは、第６図に示すごとく、上記Ｎ１
１Ｆのアタッチメントにおいて、根面板９３と対向する
部分全面に、非磁性箔７３を配設したものである。As shown in FIG. 5, the NaF attachment consists of a yoke 71 having an inverted U-shaped cross section, and a magnet 72 in which an S pole and an N pole are arranged vertically. Magnet body 72
is in direct contact with the root plate 93. Also, Na
As shown in Figure 6, the G attachment is attached to the N1 above.
In the 1F attachment, a non-magnetic foil 73 is disposed on the entire surface of the portion facing the base plate 93.
次に、上記の各測定に関しては、吸引力はアタッチメン
トと根面板との間の磁気吸引力（ｇ）を測定した。また
、耐食性は、アタッチメントを３７°Ｃの人口唾液中に
、１０００時間浸漬した後の変色度で評価した。第８表
中、Ｏは変化なしで優秀、×は全面に変色が見られ不良
である。次に。Next, regarding each of the above measurements, the magnetic attraction force (g) between the attachment and the root plate was measured as the attraction force. Corrosion resistance was evaluated by the degree of discoloration after the attachment was immersed in artificial saliva at 37°C for 1000 hours. In Table 8, O indicates no change and is excellent, and × indicates discoloration observed over the entire surface and is poor. next.
耐摩耗性は、根面板と磁石体とを１ ｋｇの荷重で１０
００回擦った後の、アタッチメント側表面の状態をもっ
て評価した。同表中、○は変化なしで耐摩耗性優秀、×
は欠けた部分が見られ不良である。The abrasion resistance of the root plate and the magnet body is 10% with a load of 1 kg.
Evaluation was made based on the condition of the attachment side surface after rubbing 00 times. In the same table, ○ indicates excellent wear resistance with no change, ×
is defective as there are some missing parts.
なお、根面板がアタッチメントと接触する部分の面積は
１１ｍｍ”である。Note that the area of the portion where the root plate contacts the attachment is 11 mm''.
第１表ないし第８表より知られるごとく、耐食性、耐摩
耗性は本発明のＮａ Ａ ％ Ｃ、比較例ＮαＤ。As is known from Tables 1 to 8, the corrosion resistance and abrasion resistance of Na A % C of the present invention and NaD of the comparative example.
Ｅともに優れ、従来例ｋＦ、Ｇは不良である。しかし、
吸引力に関しては２本発明にかかる義歯アタッチメント
Ａ−Ｃは、いずれも７２０ｇ以上という優れた吸引力を
有している。これに比して。Both E are excellent, and conventional examples kF and G are poor. but,
Regarding the suction force, the two denture attachments A to C according to the present invention each have an excellent suction force of 720 g or more. Compared to this.
比較例ＮαＤ、Ｅは４５０ｇ程度と低く、更に従来例Ｎ
αＦ、 Ｇに至っては２００〜３００ｇ程度とかなり低
い。Comparative examples NαD and E are as low as about 450g, and even conventional example N
αF and G are quite low at around 200-300g.
第１図ないし第４図は本発明の第１実施例を示し、第１
図は義歯アタッチメントの基本構造説明図、第２図は義
歯アタッチメントの分解斜視図。
第３図及び第４図は飽和磁束密度及び最大エネルギー積
と吸引力との関係を示す線図、第５図及び第６図は従来
例の義歯アタッチメントの基本構造説明図、第７図及び
第８図は従来の義歯を示し。
第７図は義歯の断面図、第８図は義歯アタッチメントの
断面図である。
１・・・義歯アタッチメント
１１・ ・ ・ヨーク。
１２・・・磁石体。
１３・・・スペーサ。
１４・・・ケース。
９１・・・歯槽。
９３・・・根面板。
８・・・従来の義歯アタッチメント
第１図
第３図
化太＋ｈｂ東庄准（ＫＧ）
第４図
１天エネルギー１（呂ＧＯｅ ）
０＝＝■＝＝＝ヨー９３
第６図
７に
二＝＝＝米９３1 to 4 show a first embodiment of the present invention.
The figure is an explanatory diagram of the basic structure of the denture attachment, and FIG. 2 is an exploded perspective view of the denture attachment. Figures 3 and 4 are diagrams showing the relationship between saturation magnetic flux density, maximum energy product, and attraction force, Figures 5 and 6 are illustrations of the basic structure of a conventional denture attachment, and Figures 7 and Figure 8 shows a conventional denture. FIG. 7 is a sectional view of the denture, and FIG. 8 is a sectional view of the denture attachment. 1... Denture attachment 11...Yoke. 12... Magnet. 13...Spacer. 14...Case. 91...dental alveolus. 93... Root plate. 8... Conventional denture attachment Fig. 1 Fig. 3 Fig. 3 Kata + hb Tosho Jun (KG) Fig. 4 1 Ten energy 1 (Ryo GOe) 0 = = ■ = = = Yo 93 Fig. 6 2 = = = rice 93
Claims (4)
向するように義歯床内に埋設する義歯アタッチメントで
あって、 該アタッチメントは上記根面板に向けて立設した耐食軟
磁性合金からなる一対のヨークと、該一対のヨークの間
において根面板側に設けた耐食非磁性合金からなるスペ
ーサ及び該スペーサの反根面板側にＳ極とＮ極を上記両
ヨークに対向させて設けた磁石体と、上記一対のヨーク
及びスペーサの根面板側を除いて被冠した耐食非磁性合
金からなるケースとよりなることを特徴とする義歯アタ
ッチメント。(1) A denture attachment that is embedded in a denture base so as to face a root plate made of a soft magnetic alloy embedded in the tooth root, the attachment being made of a corrosion-resistant soft magnetic alloy placed upright facing the root plate. A pair of yokes, a spacer made of a corrosion-resistant non-magnetic alloy provided on the root plate side between the pair of yokes, and a magnet provided with an S pole and an N pole facing the two yokes on the side opposite to the root plate of the spacer. A denture attachment comprising a body and a case made of a corrosion-resistant non-magnetic alloy which is covered with the pair of yokes and the spacer except for the root plate side.
石体は最大エネルギー積が２０ＭＧＯｅ以上の希土類磁
石であることを特徴とする義歯アタッチメント。(2) The denture attachment according to claim 1, wherein the magnet body is a rare earth magnet having a maximum energy product of 20 MGOe or more.
ークの軟磁性合金は飽和磁束密度が１３０００Ｇ以上、
透磁率が３０００以上であり、またスペーサ及びケース
の非磁性合金は透磁率１．２以下であることを特徴とす
る義歯アタッチメント。(3) In the attachment according to the first claim, the soft magnetic alloy of the yoke has a saturation magnetic flux density of 13000G or more,
A denture attachment having a magnetic permeability of 3000 or more, and a non-magnetic alloy of the spacer and the case having a magnetic permeability of 1.2 or less.
ークの軟磁性合金は飽和磁束密度が２００００Ｇ以上で
あり、かつ根面板との接触面は防錆メッキを施してなる
ことを特徴とする義歯アタッチメント。(4) The denture attachment according to claim 1, wherein the soft magnetic alloy of the yoke has a saturation magnetic flux density of 20,000 G or more, and the contact surface with the root plate is coated with anti-rust plating. .
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13473788A JPH0732784B2 (en) | 1988-06-01 | 1988-06-01 | Denture attachment |
| US07/460,073 US5013243A (en) | 1988-06-01 | 1989-06-01 | Denture attachment |
| DE68913510T DE68913510T2 (en) | 1988-06-01 | 1989-06-01 | FASTENING AN ARTIFICIAL TOOTH. |
| PCT/JP1989/000548 WO1989011835A1 (en) | 1988-06-01 | 1989-06-01 | Artificial tooth attachment |
| EP89906451A EP0387350B1 (en) | 1988-06-01 | 1989-06-01 | Artificial tooth attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13473788A JPH0732784B2 (en) | 1988-06-01 | 1988-06-01 | Denture attachment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01303145A true JPH01303145A (en) | 1989-12-07 |
| JPH0732784B2 JPH0732784B2 (en) | 1995-04-12 |
Family
ID=15135410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13473788A Expired - Lifetime JPH0732784B2 (en) | 1988-06-01 | 1988-06-01 | Denture attachment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732784B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471550A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| JPH0471552A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| JPH0471551A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| JPH04227253A (en) * | 1990-06-15 | 1992-08-17 | Hitachi Metals Ltd | Permanent magnet assemble body for stabilizing artificial tooth |
| WO1993025159A1 (en) * | 1992-06-17 | 1993-12-23 | Aichi Steel Works, Ltd. | Attachment for false tooth |
| WO1996019951A1 (en) | 1994-12-27 | 1996-07-04 | Aichi Steel Works, Ltd. | Denture attachment |
| EP0764428A1 (en) | 1995-03-20 | 1997-03-26 | Aichi Steel Works, Ltd. | Dental magnetic attachment |
| US6229417B1 (en) | 1999-02-23 | 2001-05-08 | Rockwell Technologies, Llc | Operator for an electromagnetic switching device |
| JP2002186630A (en) * | 2000-12-20 | 2002-07-02 | Gc Corp | Denture magnetic attachment |
| WO2014024673A1 (en) | 2012-08-09 | 2014-02-13 | 株式会社ジーシー | Magnetic attachment for dental prostheses |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004298611A (en) | 2003-03-14 | 2004-10-28 | Neomax Co Ltd | Dental magnetic attachment and process for producing the same |
| JP4692873B2 (en) * | 2004-09-16 | 2011-06-01 | 日立金属株式会社 | Magnetic attachment |
-
1988
- 1988-06-01 JP JP13473788A patent/JPH0732784B2/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04227253A (en) * | 1990-06-15 | 1992-08-17 | Hitachi Metals Ltd | Permanent magnet assemble body for stabilizing artificial tooth |
| JPH0471550A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| JPH0471552A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| JPH0471551A (en) * | 1990-07-10 | 1992-03-06 | Aichi Steel Works Ltd | Denture attachment |
| WO1993025159A1 (en) * | 1992-06-17 | 1993-12-23 | Aichi Steel Works, Ltd. | Attachment for false tooth |
| WO1996019951A1 (en) | 1994-12-27 | 1996-07-04 | Aichi Steel Works, Ltd. | Denture attachment |
| WO1996019948A1 (en) * | 1994-12-27 | 1996-07-04 | Aichi Steel Works, Ltd. | Denture attachment |
| US5931676A (en) * | 1994-12-27 | 1999-08-03 | Aichi Steel Works, Ltd. | Dental attachment |
| US5678998A (en) * | 1995-03-20 | 1997-10-21 | Aichi Steel Works, Ltd. | Dental magnetic attachment |
| EP0764428A1 (en) | 1995-03-20 | 1997-03-26 | Aichi Steel Works, Ltd. | Dental magnetic attachment |
| US6229417B1 (en) | 1999-02-23 | 2001-05-08 | Rockwell Technologies, Llc | Operator for an electromagnetic switching device |
| JP2002186630A (en) * | 2000-12-20 | 2002-07-02 | Gc Corp | Denture magnetic attachment |
| GB2372452A (en) * | 2000-12-20 | 2002-08-28 | Gc Kk | Magnetic dental assembly, at least a portion of one surface of which is roughened |
| US6561806B2 (en) | 2000-12-20 | 2003-05-13 | Gc Corporation | Dental magnetic attachment |
| GB2372452B (en) * | 2000-12-20 | 2004-11-10 | Gc Kk | Dental magnetic attachment |
| WO2014024673A1 (en) | 2012-08-09 | 2014-02-13 | 株式会社ジーシー | Magnetic attachment for dental prostheses |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0732784B2 (en) | 1995-04-12 |
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