JPH0641403B2 - Polysulfone floor denture repair material - Google Patents
Polysulfone floor denture repair materialInfo
- Publication number
- JPH0641403B2 JPH0641403B2 JP61060641A JP6064186A JPH0641403B2 JP H0641403 B2 JPH0641403 B2 JP H0641403B2 JP 61060641 A JP61060641 A JP 61060641A JP 6064186 A JP6064186 A JP 6064186A JP H0641403 B2 JPH0641403 B2 JP H0641403B2
- Authority
- JP
- Japan
- Prior art keywords
- polysulfone
- repair material
- methyl methacrylate
- methylmethacrylate
- weight
- 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
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、ポリサルホン床義歯の補修材に関する。TECHNICAL FIELD The present invention relates to a polysulfone denture repair material.
［従来の技術およびその問題点］ 義歯の補修やリライニングには、即時重合レジンと呼ば
れるアクリル系補修材が一般的に用いられている。即時
重合レジンは、メチルメタアクリレートとアミンとから
なる液成分と、過酸化物を含有したメチルメタアクリレ
ート重合体粉末とを混合したレジンであり、このレジン
を補修個所に充填し硬化させることにより補修される。[Prior Art and Problems Thereof] An acrylic-based repair material called an immediate polymerization resin is generally used for repairing and relining dentures. Immediately polymerized resin is a resin in which a liquid component consisting of methylmethacrylate and amine and a powder of methylmethacrylate polymer containing peroxide are mixed, and repaired by filling this resin at a repairing point and curing it. To be done.
しかし、ポリサルホン床義歯はメチルメタアクリレート
との接触により亀裂を生ずる。そのため従来の即時重合
レジンをそのまま使用した場合、強度および審美性など
の低下を招く。また、ポリサルホン床義歯の補修材とし
て市販されている、上記以外のアクリル系補修材を用い
た場合にも微細な亀裂が発生する。そのため、補修に先
立ってポリサルホン義歯床の表面に予備処理剤を塗布
し、乾燥させた後に補修材を補修個所に充填するという
煩雑な工程が必要であった。However, polysulfone dentures crack on contact with methylmethacrylate. Therefore, if the conventional immediate polymerization resin is used as it is, the strength and the aesthetic property are deteriorated. In addition, fine cracks are generated also when an acrylic-based repair material other than those described above, which is commercially available as a repair material for polysulfone dentures, is used. Therefore, a complicated process of applying a pretreatment agent to the surface of the polysulfone denture base prior to the repair, drying it, and then filling the repair part with the repair material is required.
［問題点を解決するための手段］ 本発明は、ポリサルホン床義歯の補修を簡便に、且つ良
好に行うための補修材に関する。[Means for Solving Problems] The present invention relates to a repair material for easily and favorably repairing polysulfone dentures.
すなわち本発明は、分子量１００００〜１５００００の
メチルメタアクリレート重合体を２０〜４０重量％含有
するメチルメタアクリレート溶液と、過酸化物を含有す
るメチルメタアクリレート重合体とからなるポリサルホ
ン義歯床の補修材に関する。That is, the present invention relates to a polysulfone denture base repair material comprising a methyl methacrylate solution containing 20 to 40% by weight of a methyl methacrylate polymer having a molecular weight of 10,000 to 150,000 and a methyl methacrylate polymer containing a peroxide. .
ポリサルホン床義歯の補修に際し、補修材の液成分とし
て、メチルメタアクリレート重合体を含有したメチルメ
タアクリレート溶液を使用すれば亀裂を防止できる。When repairing a polysulfone denture, cracks can be prevented by using a methyl methacrylate solution containing a methyl methacrylate polymer as a liquid component of the repair material.
メチルメタアクリレート重合体の分子量は、１００００
〜１５００００、特に５００００〜１００００の範囲が
好適である。The molecular weight of the methyl methacrylate polymer is 10,000.
The range of ˜150,000, especially 50,000 to 10,000 is preferable.
メチルメタアクリレート重合体の分子量が１００００未
満である場合は、補修材の接着強度が不充分であって実
用に供し得ず、１５００００を越える場合は、メチルメ
タアクリレート溶液の粘度が著しく高くなり操作性が悪
化する。また、補修材の接着強度も低下する。If the molecular weight of the methyl methacrylate polymer is less than 10,000, the adhesive strength of the repair material is insufficient and it cannot be put to practical use. If it exceeds 150,000, the viscosity of the methyl methacrylate solution becomes extremely high and the operability is increased. Becomes worse. Also, the adhesive strength of the repair material is reduced.
メチルメタアクリレート溶液のメチルメタアクリレート
重合体濃度は、２０〜４０重量％、特に２５〜３５重量
％が好適である。The methylmethacrylate polymer concentration of the methylmethacrylate solution is preferably 20 to 40% by weight, particularly 25 to 35% by weight.
メチルメタアクリレート重合体濃度が２０重量％未満で
ある場合には、補修材を塗布した個所に亀裂が発生す
る。４０重量％を越える場合は、メチルメタアクリレー
ト溶液の粘度が著しく高くなり操作性が悪化する。ま
た、補修材の接着強度も低下する。If the concentration of the methyl methacrylate polymer is less than 20% by weight, cracks will occur at the portion where the repair material is applied. If it exceeds 40% by weight, the viscosity of the methylmethacrylate solution becomes extremely high and the operability deteriorates. Also, the adhesive strength of the repair material is reduced.
補修材の固形成分である過酸化物を含有するメチルメタ
アクリレート重合体における過酸化物とメチルメタアク
リレート重合体は、従来のもの例えば（商品名：ユニフ
ァスト／Unifast而至歯科工業株式会社製、即時重合レ
ジン）をそのまま使用でき特に制限はされない。Peroxides and methyl methacrylate polymers in the methyl methacrylate polymer containing peroxide, which is a solid component of the repair material, are conventional ones (trade name: Unifast / Unifast Zhi Dental Industrial Co., Ltd., Immediately polymerized resin) can be used as it is without any particular limitation.
過酸化物を含有するメチルメタアクリレート重合体は、
一般には乳化重合で製造したメチルメタアクリレート重
合体粉末に過酸化物を数％添加混和することにより調製
することができ、その状態で両者は接触しても常温では
反対することなく単なる混合物として存在している。Methyl methacrylate polymer containing peroxide,
Generally, it can be prepared by adding a few percent of peroxide to a methylmethacrylate polymer powder produced by emulsion polymerization and mixing them, and even if they contact each other in that state, they exist as a simple mixture at room temperature without opposition. is doing.
また、ポリサルホン床義歯あるいは人工歯とは、ユニオ
ンカーバイド社のユーデルポリサルホン、インペリアル
ケミカルインダストリーズ社のポリエーテルサルホンな
どのスルホン系樹脂から成形された床義歯のことであ
る。Further, the polysulfone denture or artificial tooth is a denture molded from a sulfone resin such as Udel Polysulfone manufactured by Union Carbide and polyether sulfone manufactured by Imperial Chemical Industries.
以下に実施例によって本発明を説明する。The present invention will be described below with reference to examples.
実施例１ 平均分子量１０５０００のメチルメタアクリレート重合
体を２５重量％含有するメチルメタアクリレート溶液
に、N,N-ジメチル-P-トルイジンを少量添加した液に、
乳化重合で製造したメチルメタアクリレート重合体粉末
に、過酸化ベンゾイルを１重量％添加したものを混合し
て補修材を調整した。長さ５０mm、幅１０mm、厚さ４mm
の２枚のポリサルホンシートの付き合わせ端面間に、前
記補修材を２mm厚さに塗布固定した。この試験片をイン
ストロン万能試験機により、チャック間距離５０mm、引
張速度１０mm／分で試験した。その結果接着強度は３２
０kg／cm2であった。また、補修材を塗布した周辺のポ
リサルホンには、亀裂はまったく認められなかった。Example 1 To a solution obtained by adding a small amount of N, N-dimethyl-P-toluidine to a methyl methacrylate solution containing 25% by weight of a methyl methacrylate polymer having an average molecular weight of 105,000,
A repair material was prepared by mixing a methylmethacrylate polymer powder produced by emulsion polymerization with 1% by weight of benzoyl peroxide added. Length 50 mm, width 10 mm, thickness 4 mm
The above-mentioned repair material was applied and fixed to a thickness of 2 mm between the abutting end faces of the two polysulfone sheets. This test piece was tested by an Instron universal tester at a chuck distance of 50 mm and a pulling speed of 10 mm / min. As a result, the adhesive strength is 32.
It was 0 kg / cm 2 . No cracks were observed in the polysulfone coated with the repair material.
実施例２ 平均分子量５００００のメチルメタアクリレート重合体
を３５重量％含有するメチルメタアクリレート溶液を使
用したほかは実施例１と同様に試験した。その結果接着
強度は３１０kg／cm2であった。また、この補修材を実
際のポリサルホン義歯床に設けられた直径３mm、深さ２
mmの孔に充填したところ、周辺のポリサルホン義歯床に
は亀裂はまったく発生せず、極めて良好な硬化体が得ら
れた。Example 2 A test was conducted in the same manner as in Example 1 except that a methyl methacrylate solution containing 35% by weight of a methyl methacrylate polymer having an average molecular weight of 50,000 was used. As a result, the adhesive strength was 310 kg / cm 2 . In addition, this repair material was provided on the actual polysulfone denture base with a diameter of 3 mm and a depth of 2
After filling the holes of mm, no cracks were generated in the polysulfone denture base in the vicinity, and a very good cured product was obtained.
比較例１ 市販のアクリル系即時重合レジンを、ポリサルホン義歯
床に設けられた直径３mm、深さ２mmの孔に充填した。充
填個所周辺のポリサルホン義歯床には大きな亀裂が発生
し、義歯床は破壊に近い状態となった。Comparative Example 1 A commercially available acrylic immediate polymerization resin was filled in a hole having a diameter of 3 mm and a depth of 2 mm provided in a polysulfone denture base. A large crack was generated in the polysulfone denture base around the filling site, and the denture base was in a state of near fracture.
比較例２ 市販のポリサルホン義歯床用アクリル系補修材を用い
て、予備処理なしで接着強度を求めた。試験方法は実施
例１と同様である。その結果接着強度は２８０kg／cm2
であった。また、義歯床には微細な亀裂が多数発生し、
義歯床強度の低下および外観の悪化を生じた。Comparative Example 2 Using a commercially available polysulfone denture base acrylic-based repair material, the adhesive strength was determined without pretreatment. The test method is the same as in Example 1. As a result, the adhesive strength is 280 kg / cm 2.
Met. Also, many fine cracks occur in the denture base,
The denture base strength decreased and the appearance deteriorated.
Claims (1)
メタアクリレート重合体を２０〜４０重量％含有するメ
チルメタアクリレート溶液と、過酸化物を含有するメチ
ルメタアクリレート重合体とからなるポリサルホン床義
歯の補修材。1. A repair material for a polysulfone denture comprising a methylmethacrylate solution containing 20 to 40% by weight of a methylmethacrylate polymer having a molecular weight of 10,000 to 150,000 and a methylmethacrylate polymer containing a peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61060641A JPH0641403B2 (en) | 1986-03-20 | 1986-03-20 | Polysulfone floor denture repair material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61060641A JPH0641403B2 (en) | 1986-03-20 | 1986-03-20 | Polysulfone floor denture repair material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62221608A JPS62221608A (en) | 1987-09-29 |
| JPH0641403B2 true JPH0641403B2 (en) | 1994-06-01 |
Family
ID=13148150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61060641A Expired - Lifetime JPH0641403B2 (en) | 1986-03-20 | 1986-03-20 | Polysulfone floor denture repair material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641403B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5258212B2 (en) * | 2007-06-25 | 2013-08-07 | 株式会社トクヤマデンタル | Dental adhesive resin cement |
-
1986
- 1986-03-20 JP JP61060641A patent/JPH0641403B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62221608A (en) | 1987-09-29 |
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