JPH0624540B2 - Method for manufacturing polysulfone denture - Google Patents
Method for manufacturing polysulfone dentureInfo
- Publication number
- JPH0624540B2 JPH0624540B2 JP6958788A JP6958788A JPH0624540B2 JP H0624540 B2 JPH0624540 B2 JP H0624540B2 JP 6958788 A JP6958788 A JP 6958788A JP 6958788 A JP6958788 A JP 6958788A JP H0624540 B2 JPH0624540 B2 JP H0624540B2
- Authority
- JP
- Japan
- Prior art keywords
- polysulfone
- denture
- artificial tooth
- acrylic resin
- denture base
- 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 - Fee Related
Links
Landscapes
- Dental Prosthetics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、アクリル樹脂製人工歯をポリサルホン義歯床
に強固に接着させ、審美性及び人工歯保持性に優れたポ
リサルホン床義歯を製造する方法に関する。The present invention relates to a method for producing a polysulfone denture having excellent aesthetics and artificial tooth retention by firmly adhering an acrylic resin artificial tooth to a polysulfone denture base. Regarding
従来のレジン床義歯は、アクリル系モノマーとポリマー
との混合物を石膏型に填入した後、加熱重合する方法で
得られている。この方法は、アクリル樹脂製人工歯とア
クリル樹脂義歯床が強固に接着するという利点を有して
いる。又、機械的強度が大であって、耐衝撃性に優れた
ポリサルホン義歯床を使用したレジン床義歯も実用化さ
れており、特開昭６１−５０９０６号公報及び特開昭６
１−１３４３０６号公報ではポリカーボネートの塩化炭
素系溶媒溶液を接着剤として、アクリル樹脂製人工歯を
ポリサルホン義歯床に接着固定する技術が開示されてい
る。A conventional resin denture is obtained by a method in which a mixture of an acrylic monomer and a polymer is filled in a gypsum mold and then heat-polymerized. This method has the advantage that the acrylic resin artificial tooth and the acrylic resin denture base are firmly bonded. Further, a resin denture using a polysulfone denture base having high mechanical strength and excellent impact resistance has also been put into practical use, and is disclosed in JP-A-61-50906 and JP-A-6-506906.
Japanese Laid-Open Patent Publication No. 1-134306 discloses a technique of adhesively fixing an acrylic resin artificial tooth to a polysulfone denture base using a carbon chloride solvent solution of polycarbonate as an adhesive.
しかし、従来より使用されているアクリル樹脂義歯床
は、脆く、割れ易い欠点を有するばかりではなく、未重
合アクリルモノマーによる為害性を有する。又、アクリ
ル樹脂義歯床が持つ上記欠点を有さないものとして、提
案され実用化されているポリサルホン義歯床は、一般的
に広く使用されているアクリル樹脂製人工歯とは化学的
な結合による接着をしないため、人工歯が義歯床から欠
落し易いという欠点がある。このため、アクリル樹脂製
人工歯に固定維持のための特別な形状を付与する方法も
提案されているが、特別な形状を付与できない症例も多
く、実際にはアクリル樹脂製人工歯の使用が大きく制限
されている。However, acrylic resin denture bases that have been conventionally used are not only brittle and easily cracked, but also have a harmful effect due to unpolymerized acrylic monomers. In addition, the polysulfone denture base that has been proposed and put into practical use as one that does not have the above-mentioned drawbacks of the acrylic resin denture base is bonded by a chemical bond to the widely used acrylic resin artificial teeth. Therefore, there is a drawback that the artificial tooth is likely to be missing from the denture base. Therefore, a method of giving a special shape for fixing and maintaining the acrylic resin artificial tooth has also been proposed, but in many cases it is not possible to give a special shape, and in reality, the use of the acrylic resin artificial tooth is largely It is restricted.
又、特開昭６１−５０９０６号公報及び特開昭６１−１
３４３０６号公報などに開示された方法では、成形した
床義歯から一旦人工歯を取り除き、人工歯に接着剤を塗
布した後、その人工歯を再び元の位置に置いて接着させ
るため、操作が煩雑であるばかりでなく、人工歯の位置
が微妙にずれてしまうという大きな欠点を有している。In addition, JP-A-61-50906 and JP-A-61-11-1.
In the method disclosed in Japanese Laid-Open Patent Publication No. 34306, the artificial tooth is once removed from the molded denture, the adhesive is applied to the artificial tooth, and then the artificial tooth is placed in the original position again to be bonded, so that the operation is complicated. In addition to the above, there is a big drawback that the position of the artificial tooth is slightly deviated.
本発明は、アクリル樹脂製人工歯をポリサルホン義歯床
に、簡易な工程で、確実に接着固定する方法に関する。
本発明の方法によれば、審美性に優れたアクリル樹脂製
人工歯を症例に何ら制限されることなく、機械的強度が
大であって、耐衝撃性に優れたポリサルホン義歯床に適
用することができる。The present invention relates to a method for securely adhering an acrylic resin artificial tooth to a polysulfone denture base by a simple process.
According to the method of the present invention, an acrylic resin artificial tooth excellent in aesthetics is applied to a polysulfone denture base having high mechanical strength and excellent impact resistance without being limited to cases. You can
本発明の特徴は、アクリル樹脂製人工歯の基底面に、ポ
リカーボネートの１〜２０重量％塩化炭素系容媒溶液を
塗布した後、圧縮成形法によってサルホン系樹脂を圧入
し、アクリル樹脂製人工歯をポリサルホン義歯床に接着
させる点にある。A feature of the present invention is that a 1-20 wt% carbon chloride-based solvent solution of polycarbonate is applied to the basal surface of an acrylic resin artificial tooth, and then a sulfone-based resin is press-fitted by compression molding to produce an acrylic resin artificial tooth. The point is to attach the polysulfone to the denture base.
ポリカーボネートは、ポリサルホン義歯床の成形条件で
ポリサルホンと溶着するものであれば特に制限はされな
いが、一時転移点が１５０〜２５０℃の範囲のもの、例
えば、ビスフェノールＡとホスゲン或いはビスフェノー
ルＡとジフェニルカーボネートとから得られるポリー
４，４′−ジオキシフェニル−２，２−プロパンカーボ
ネートなどが好ましい。Polycarbonate is not particularly limited as long as it can be fused with polysulfone under the molding conditions of polysulfone denture base, but one having a temporary transition point in the range of 150 to 250 ° C., for example, bisphenol A and phosgene or bisphenol A and diphenyl carbonate. Poly-4,4'-dioxyphenyl-2,2-propane carbonate obtained from the above is preferable.
ポリカーボネートを溶解する溶媒としては、塩化炭素系
溶媒が使用される。四塩化炭素、クロロホルム、ジクロ
ルメタンなどが使用できるが、溶解性の高いクロロホル
ム及びジクロルメタンが好ましい。A carbon chloride solvent is used as a solvent for dissolving the polycarbonate. Carbon tetrachloride, chloroform, dichloromethane and the like can be used, but chloroform and dichloromethane having high solubility are preferable.
ポリカーボネートの濃度は、人工歯の接着性に対する信
頼性及び操作性の点から１〜２０重量％の範囲が好まし
い。接着性の安定性及び塗布時の溶液の展延性などを考
慮すると５〜１５重量％の範囲が特に好ましい。The concentration of polycarbonate is preferably in the range of 1 to 20% by weight from the viewpoint of reliability and operability with respect to adhesiveness of artificial teeth. The range of 5 to 15% by weight is particularly preferable in consideration of stability of adhesiveness and spreadability of the solution at the time of application.
以下に実施例によって本発明を更に詳しく説明する。The present invention will be described in more detail below with reference to examples.
実施例 日本工業規格Ｔ−６５１１人工歯破折試験法中の石膏型
作成法に従い、アクリル樹脂製人工歯（商品名：リアル
クラウン、松風(株)製）を、切端部と歯頸部を結ぶ線が
パラフィンワックス型と４５度の角度をなす様にパラフ
ィンワックス型に植え付け、歯科技工の操作に従って石
膏型を作成した。上フラスコに埋没されたアクリル樹脂
製人工歯の基底面にポリカーボネートの５重量％、１０
重量％、１５重量％クロロホルム溶液及び２０重量％ジ
クロルメタン溶液を塗布し、１３０℃の温度で石膏型を
乾燥した。Example An acrylic resin artificial tooth (trade name: Real Crown, manufactured by Matsukaze Co., Ltd.) is connected to the incisal end and the neck of the tooth according to the plaster mold making method in the Japanese Industrial Standard T-6511 artificial tooth fracture test method. The paraffin wax mold was planted so that the line formed an angle of 45 degrees with the paraffin wax mold, and a plaster mold was prepared according to the operation of the dental technician. 5% by weight of polycarbonate on the bottom surface of the artificial tooth made of acrylic resin embedded in the upper flask,
A wt%, 15 wt% chloroform solution and a 20 wt% dichloromethane solution were applied, and the gypsum mold was dried at a temperature of 130 ° C.
下フラスコの石膏型上にポリサルホン（Ｕｄｅ１ポリサ
ルホン、ユニオンカーバイド社製）を置き、赤外線ヒー
ターでポリサルホンを表面温度が３５０℃程度になるま
で加熱した後、上下フラスコを合わせて圧縮成形した。
冷却後、上下フラスコを分割しポリサルホン床義歯を取
り出した。同様にして各溶液について更にそれぞれ２個
のポリサルホン床義歯を製造した。Polysulfone (Ude1 polysulfone, manufactured by Union Carbide) was placed on the plaster mold of the lower flask, and the polysulfone was heated with an infrared heater until the surface temperature reached about 350 ° C., and then the upper and lower flasks were combined and compression-molded.
After cooling, the upper and lower flasks were divided and the polysulfone denture was taken out. Similarly, two polysulfone dentures were prepared for each solution.
得られたポリサルホン床義歯を使用して、日本工業規格
Ｔ−６５１１に準じて負荷速度１２kgf/min で引っ張
り、破折強度を求めた。その結果を第１表に示す。Using the obtained polysulfone base denture, tensile strength was determined by pulling at a load speed of 12 kgf / min according to Japanese Industrial Standard T-6511. The results are shown in Table 1.
何れの試験例に於いても接着固定は確実であり、又、破
折は人工歯そのもので発生しており、義歯床と人工歯と
の接着界面での破折は認められなかった。In all of the test examples, the adhesive fixation was reliable, and the fracture occurred in the artificial tooth itself, and no fracture was observed at the adhesive interface between the denture base and the artificial tooth.
比較例 人工歯の基底面にポリカーボネートの塩化炭素系溶媒溶
液を塗布しなかった以外は実施例と同様にして３個のポ
リサルホン床義歯を製造した。得られた床義歯を使用し
て、実施例と同様にして破折強度を測定した。結果を第
１表に示す。Comparative Example Three polysulfone dentures were produced in the same manner as in Example except that the carbon chloride solvent solution of polycarbonate was not applied to the basal surface of the artificial tooth. Using the obtained denture, the breaking strength was measured in the same manner as in the example. The results are shown in Table 1.
３個の試験例何れについても破折強度は不充分であり、
又、破折は全て義歯床と人工歯との接着界面で発生して
いた。In all three test examples, the fracture strength was insufficient,
All fractures occurred at the adhesive interface between the denture base and the artificial tooth.
〔発明の効果〕 本発明の接着方法によれば、本来接着性を有さないアク
リル樹脂製人工歯とポリサルホン義歯床とを、簡易な工
程で強固に接着固定することができる。その結果、症例
に何ら制限されることなく、アクリル樹脂製人工歯の優
れた審美性とポリサルホン義歯床の優れた機械的強度及
び耐衝撃強度とを併せ持つ床義歯を得ることができる。 [Advantages of the Invention] According to the bonding method of the present invention, it is possible to firmly bond and fix an acrylic resin artificial tooth and a polysulfone denture base, which originally do not have adhesiveness, in a simple process. As a result, it is possible to obtain a denture having both excellent aesthetics of an acrylic resin artificial tooth and excellent mechanical strength and impact resistance of a polysulfone denture base without being limited to cases.
フロントページの続き (72)発明者 北村 徳和 大阪府枚方市中宮本町３番10号 宇部興産 株式会社枚方研究所内 審査官 鈴木 寛治Front Page Continuation (72) Inventor Tokuwa Kitamura 3-10 Nakamiyahonmachi, Hirakata City, Osaka Prefecture Ube Industries, Ltd. Hirakata Research Laboratory Examiner Kanji Suzuki
Claims (1)
ーボネートの１〜２０重量％塩化炭素系溶媒溶液を塗布
した後、圧縮成形法によってサルホン系樹脂を圧入し、
アクリル樹脂製人工歯をポリサルホン義歯床に接着させ
ることを特徴とするポリサルホン床義歯の製造方法。1. A base solution of an acrylic resin artificial tooth is coated with a 1 to 20 wt% carbon chloride solvent solution of polycarbonate and then a sulfone resin is press-fitted by compression molding.
A method for producing a polysulfone denture, which comprises adhering an acrylic resin artificial tooth to a polysulfone denture base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6958788A JPH0624540B2 (en) | 1988-03-25 | 1988-03-25 | Method for manufacturing polysulfone denture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6958788A JPH0624540B2 (en) | 1988-03-25 | 1988-03-25 | Method for manufacturing polysulfone denture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01242059A JPH01242059A (en) | 1989-09-27 |
| JPH0624540B2 true JPH0624540B2 (en) | 1994-04-06 |
Family
ID=13407108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6958788A Expired - Fee Related JPH0624540B2 (en) | 1988-03-25 | 1988-03-25 | Method for manufacturing polysulfone denture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624540B2 (en) |
-
1988
- 1988-03-25 JP JP6958788A patent/JPH0624540B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01242059A (en) | 1989-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |