JPH0624541B2 - How to join artificial teeth - Google Patents
How to join artificial teethInfo
- Publication number
- JPH0624541B2 JPH0624541B2 JP8512588A JP8512588A JPH0624541B2 JP H0624541 B2 JPH0624541 B2 JP H0624541B2 JP 8512588 A JP8512588 A JP 8512588A JP 8512588 A JP8512588 A JP 8512588A JP H0624541 B2 JPH0624541 B2 JP H0624541B2
- Authority
- JP
- Japan
- Prior art keywords
- polysulfone
- artificial tooth
- acrylic
- resin
- acrylic artificial
- 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、アクリル人工歯をポリサルホン義歯床と接合
する方法に関する。TECHNICAL FIELD The present invention relates to a method for joining an acrylic artificial tooth with a polysulfone denture base.
［従来の技術］ 従来のアクリル床義歯は、アクリル系モノマとポリマの
混合物を石膏型に填入した後、加熱重合する方法で得ら
れる。この方法は、アクリル人工歯とアクリル義歯床が
化学的に強固に接着する利点を有している。[Prior Art] A conventional acrylic 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 artificial tooth and the acrylic denture base are chemically strongly bonded together.
しかし、このようにして得られたアクリル義歯床は、脆
く割れ易い欠点を有するばかりでなく、未重合モノマに
よる為害性を有する。However, the acrylic denture base thus obtained not only has the drawback of being brittle and easy to crack, but is also harmful because of unpolymerized monomers.
このようなアクリル義歯床の欠点を除去するものとし
て、ポリサルホン系の義歯床が出現し実用化されてい
る。このポリサルホン義歯床は機械的強度が高く、耐衝
撃性に優れているが、一般的に使用されているアクリル
人工歯と化学的な接着をしない為、アクリル人工歯が義
歯床からはずれ易い欠点がある。このためアクリル人工
歯に特別な維持形状をつける方法が提案されているが、
維持形状をつけられない症例も多く存在し、現実にはア
クリル人工歯の使用が大きく制限されている。As a means for eliminating such drawbacks of acrylic denture bases, polysulfone-based denture bases have appeared and are in practical use. This polysulfone denture base has high mechanical strength and excellent impact resistance, but since it does not chemically bond to the commonly used acrylic artificial teeth, it has the drawback that the acrylic artificial teeth are easily removed from the denture base. is there. For this reason, a method has been proposed for giving a special maintenance shape to the acrylic artificial tooth,
There are many cases where the maintenance shape cannot be applied, and in reality, the use of acrylic artificial teeth is greatly limited.
［発明が解決しようとする課題］ 本発明の目的は、アクリル人工歯をポリサルホン義歯床
と接合する方法を開発し、審美性に優れたアクリル人工
歯を何ら制限されることなく機械的強度が高く、安全性
の高いポリサルホン義歯床に使用することである。[Problems to be Solved by the Invention] An object of the present invention is to develop a method of joining an acrylic artificial tooth with a polysulfone denture base, and to improve the aesthetics of the acrylic artificial tooth without increasing any mechanical strength. Highly safe to use for polysulfone denture base.
［課題を解決するための手段］ 本発明の特徴は、アクリル人工歯の基底面に樹脂をドー
プで接着し、圧縮成形でスルホン系樹脂を圧入し、機械
的維持力及び／又は接着力によりアクリル人工歯とポリ
サルホン義歯床との接合を図ることである。[Means for Solving the Problems] A feature of the present invention is that a resin is bonded to the base surface of an acrylic artificial tooth with a dope, and a sulfone-based resin is press-fitted by compression molding, and the acrylic resin is mechanically maintained and / or adhesively bonded. The purpose is to connect the artificial tooth and the polysulfone denture base.
本発明で人工歯の基底面に付ける樹脂は、使用するドー
プでアクリル人工歯に接着できるものは全て使用可能で
あるが、特にポリサルホンと溶着し得る樹脂、例えばポ
リカーボネート、ポリサルホン（アモコ社製、商品名ポ
リサルホンＵｄｅｌ）、ポリエーテルサルホン（ＩＣＩ
社製、商品名ポリエーテルサルホンＶｉｃｔｒｅｘ）、
芳香族ポリエステルなどが特に好ましい。また、樹脂の
形状は球状、棒状、ペレット、粉末状などいずれの形状
でも良いが、大きな機械的維持力が期待できる球状、棒
状、ペレットが好ましい。The resin to be applied to the basal surface of the artificial tooth in the present invention can be any resin that can be adhered to the acrylic artificial tooth with the dope used, but in particular, a resin that can be welded to polysulfone, such as polycarbonate, polysulfone (Amoco Ltd., product Name Polysulfone Udel), Polyethersulfone (ICI
Company name, Polyethersulfone Victrex),
Aromatic polyester and the like are particularly preferable. The shape of the resin may be any shape such as spherical, rod-shaped, pellet, and powder, but spherical, rod-shaped, or pellet, which is expected to have a large mechanical maintenance force, is preferable.
ドープとしては、義歯床であるスルホン系樹脂と成形時
に溶着し得るポリカーボネートをメチルメタクリレート
とポリカーボネートの双方を溶かし得る溶媒に含有させ
たもの、又はポリサルホンをメチルメタクリレートとポ
リサルホンの双方を溶かし得る溶媒に含有させたものが
好ましい。ポリカーボネートとポリサルホンの該溶媒に
対する含有量は、人工歯の維持力に対する信頼性及び操
作性の観点から１〜２０ＷＴ％が好ましい。As the dope, a sulfo resin that is a denture base and a polycarbonate that can be welded during molding are contained in a solvent that can dissolve both methyl methacrylate and polycarbonate, or polysulfone is contained in a solvent that can dissolve both methyl methacrylate and polysulfone. Those that have been allowed are preferred. The content of polycarbonate and polysulfone with respect to the solvent is preferably 1 to 20 WT% from the viewpoint of reliability and operability with respect to the maintenance power of artificial teeth.
本発明でいうスルホン系樹脂とは、ポリサルホン（アモ
コ社製、商品名ポリサルホンＵｄｅｌ）、ポリエーテル
サルホン（ＩＣＩ社製、商品名ポリエーテルサルホンＶ
ｉｃｔｒｅｘ）などを含み、義歯床として使用可能な樹
脂およびコンパンドをいう。The sulfone-based resin referred to in the present invention means polysulfone (Amoco, trade name Polysulfone Udel), polyether sulfone (ICI, trade name Polyethersulfone V).
ictrex) and the like, and refers to resins and compounds that can be used as a denture base.
［作用］ 本発明の接合方法によりポリサルホン床義歯を製作する
と、アクリル人工歯がポリサルホン義歯床に強固に維持
されたポリサルホン床義歯が得られる。[Operation] When a polysulfone denture is manufactured by the joining method of the present invention, a polysulfone denture in which an acrylic artificial tooth is firmly maintained on the polysulfone denture base is obtained.
更に本発明によれば、アクリル人工歯と歯槽部の粘膜の
隙間が少ない症例、即ち、アクリル人工歯が薄いポリサ
ルホン義歯床に接合される症例においては、高温で溶融
したスルホン樹脂を圧縮成形で圧入する際に、人工歯に
付けた樹脂が高温および圧力で適度に変形して薄いポリ
サルホン義歯床に対応することができる。Further, according to the present invention, in the case where the gap between the acrylic artificial tooth and the mucous membrane of the alveolar part is small, that is, in the case where the acrylic artificial tooth is bonded to a thin polysulfone denture base, the sulfone resin melted at high temperature is press-molded. In doing so, the resin applied to the artificial tooth is appropriately deformed at high temperature and pressure, and can be applied to a thin polysulfone denture base.
以下、実施例により本発明を具体的に説明する。Hereinafter, the present invention will be specifically described with reference to examples.
［実施例］ 実施例１ 図面の第１図にアクリル人工歯、第２図のパラフィンワ
ックス型を示す。日本工業規格ＪＩＳＴ−６５１１−１
９８０に記載された人工歯破折試験法に従い、第３図の
とおりアクリル人工歯（（株）ニッシン製、商品名ゼニ
スレジン歯）１を、切端部２と歯頸部３を結ぶ線がパラ
フィンワックス型と４５度になるようにパラフィンワッ
クス型に植え付け、歯科技工の操作に従って石膏埋設し
て石膏型を作った。次にパラフィンワックスを除去し、
上フラスコに埋没されたアクリル人工歯の基底面に１０
ＷＴ％ポリカーボネート（帝人化成（株）製、商品名パ
ンライト）をクロロホルムに含有させたドープを塗り、
ポリカーボネートペレットを置き１３０℃で石膏型を乾
燥した。Example 1 Example 1 An acrylic artificial tooth is shown in FIG. 1 and a paraffin wax type is shown in FIG. Japanese Industrial Standard JIST-6511-1
According to the artificial tooth fracture test method described in 980, as shown in FIG. 3, an acrylic artificial tooth (manufactured by Nissin Co., Ltd., trade name Zenith resin tooth) 1 is used, and the line connecting the incision 2 and the tooth neck 3 is paraffin wax. It was planted in a paraffin wax mold at 45 degrees with the mold and embedded in gypsum according to the operation of a dental technician to make a gypsum mold. Then remove the paraffin wax,
10 on the bottom surface of the acrylic artificial tooth embedded in the upper flask
WT% Polycarbonate (Teijin Kasei Co., Ltd., trade name Panlite) was applied to a dope containing chloroform,
The polycarbonate pellets were placed and the plaster mold was dried at 130 ° C.
下フラスコの石膏型にポリサルホン（アモコ社製、商品
名ポリサルホンＵｄｅｌ）の板を置き、赤外線ヒータで
表面が３５０℃になるまで加熱した後、上下フラスコを
合わせて圧縮成形を行った。冷却後、上下フラスコを分
割しテストピースを取り出した。A plate of polysulfone (manufactured by Amoco, trade name Polysulfone Udel) was placed on the plaster mold of the lower flask, heated with an infrared heater until the surface reached 350 ° C., and then the upper and lower flasks were combined to perform compression molding. After cooling, the upper and lower flasks were divided and the test piece was taken out.
得られたテストピースを第３図の如く樹脂床部４と保持
具５で固定し他方の人工歯切端部２を金具６を介して、
負荷測度１２kgf/min でｆの方向に引っ張った。The obtained test piece is fixed with the resin floor portion 4 and the holding tool 5 as shown in FIG. 3, and the other artificial tooth incision portion 2 is fitted with the metal fitting 6.
It was pulled in the direction of f with a load measure of 12 kgf / min.
この結果、人工歯の破折強度は２５kgf であり、実用上
問題の無い高い維持力を示した。As a result, the fracture strength of the artificial tooth was 25 kgf, which showed a high maintenance power with no practical problems.
実施例２ ポリサルホン（アモコ社製、商品名ポリサルホンＵｄｅ
ｌ）のペレットを振掛けた以外は、実施例１と同様な方
法で圧縮成形を行った。Example 2 Polysulfone (Amoco, trade name Polysulfone Ude
Compression molding was performed in the same manner as in Example 1 except that the pellets of 1) were sprinkled.
得られたテストピースは２６kgf の維持力を示し、実用
上問題の無い高い値を示した。The obtained test piece exhibited a maintaining power of 26 kgf, which was a high value with no practical problems.
比較例１ 人工歯にはも手を加えなかった以外は、実施例１と同様
な方法で圧縮成形を行った。Comparative Example 1 Compression molding was performed in the same manner as in Example 1 except that the artificial tooth was also left untouched.
得られたテストピースは５kgf の維持力しか示さず、実
用に耐えられないことが判明した。It was found that the obtained test piece exhibited a maintenance power of 5 kgf and could not be put to practical use.
［発明の効果］ 本発明によれば、機械的強度が高く、耐衝撃性に優れ、
安全性の高いポリサルホン義歯床に審美性に優れるアク
リル人工歯を実用上問題の無い高い維持力で接合でき
る。EFFECT OF THE INVENTION According to the present invention, the mechanical strength is high, the impact resistance is excellent,
Acrylic artificial teeth with excellent aesthetics can be joined to a highly safe polysulfone denture base with high maintenance power without any practical problems.
第１〜３図は実施例１において使用したアクリル人工歯
（第１図）、パラフィンワックス型（第２図）及び人工
歯の破折試験の実施方法（第３図）を表す。 １……アクリル人工歯、２……アクリル人工歯の切端
部、３……アクリル人工歯の歯頚部、４……樹脂床部、
５……保持具、６……アクリル人工歯引張り用金具1 to 3 show the acrylic artificial tooth (FIG. 1), paraffin wax mold (FIG. 2) and the method of performing the fracture test of the artificial tooth (FIG. 3) used in Example 1. 1 ... Acrylic artificial tooth, 2 ... Cut end of acrylic artificial tooth, 3 ... Tooth neck of acrylic artificial tooth, 4 ... Resin floor,
5 ... Retainer, 6 ... Acrylic artificial tooth pulling fitting
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北村 徳和 大阪府枚方市中宮北町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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tokazu Kitamura 3-10 Nakamiyakitamachi, Hirakata City, Osaka Prefecture Ube Industries, Ltd. Hirakata Research Center Examiner Kanji Suzuki
Claims (3)
リル人工歯の基底面に樹脂をドープを用いて接着し、圧
縮成形でスルホン系樹脂を圧入して、アクリル人工歯を
ポリサルホン義歯床と接合する方法。1. When manufacturing a polysulfone denture, a resin is adhered to the base surface of an acrylic artificial tooth using a dope, and a sulfone resin is press-fitted by compression molding to bond the acrylic artificial tooth to a polysulfone denture base. how to.
Ｔ％を、メチルメタクリレートとポリカーボネートの双
方を溶かし得る溶媒に含有させたものを用いる請求項
（１）に記載の接合方法。2. Polycarbonate 1-20 W as a dope
The bonding method according to claim 1, wherein T% is contained in a solvent capable of dissolving both methyl methacrylate and polycarbonate.
を、メチルメタクリレートとポリサルホンの双方を溶か
し得る溶媒に含有させたものを用いる請求項（１）に記
載の接合方法。3. Polysulfone 1 to 20 WT% as a dope
The bonding method according to claim 1, wherein the resin is contained in a solvent capable of dissolving both methyl methacrylate and polysulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8512588A JPH0624541B2 (en) | 1988-04-08 | 1988-04-08 | How to join artificial teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8512588A JPH0624541B2 (en) | 1988-04-08 | 1988-04-08 | How to join artificial teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01256951A JPH01256951A (en) | 1989-10-13 |
| JPH0624541B2 true JPH0624541B2 (en) | 1994-04-06 |
Family
ID=13849920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8512588A Expired - Fee Related JPH0624541B2 (en) | 1988-04-08 | 1988-04-08 | How to join artificial teeth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624541B2 (en) |
-
1988
- 1988-04-08 JP JP8512588A patent/JPH0624541B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01256951A (en) | 1989-10-13 |
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