JPH0624542B2 - Method of joining artificial teeth - Google Patents
Method of joining artificial teethInfo
- Publication number
- JPH0624542B2 JPH0624542B2 JP8828688A JP8828688A JPH0624542B2 JP H0624542 B2 JPH0624542 B2 JP H0624542B2 JP 8828688 A JP8828688 A JP 8828688A JP 8828688 A JP8828688 A JP 8828688A JP H0624542 B2 JPH0624542 B2 JP H0624542B2
- Authority
- JP
- Japan
- Prior art keywords
- artificial tooth
- polysulfone
- 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
歯床が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, there is a drawback that the acrylic artificial teeth tend to come off the denture base. is there. For this reason, a method of giving a special maintenance shape to the acrylic artificial tooth has been proposed, but there are many cases in which the maintenance shape cannot be provided, and in reality, the use of the acrylic artificial tooth 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、耐衝撃
性に優れ、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. It is to be used for polysulfone denture base, which has excellent impact resistance and high safety.
［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接着
剤で接着し、圧縮成形あるいは射出成形でスルホン系樹
脂を圧入し、機械的維持力及び／又は溶着力によりアク
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 adhered to the base surface of an acrylic artificial tooth with an adhesive, and a sulfone resin is press-fitted by compression molding or injection molding to obtain a mechanical maintenance force and / or The purpose is to bond the acrylic artificial tooth and the polysulfone denture base by the welding force.
本発明で人工歯の基底面に付ける樹脂は、汎用の接着剤
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、商品明ポリ
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
状は形状、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 attached to the basal surface of the artificial tooth in the present invention can be any of those that can be bonded to an acrylic artificial tooth with a general-purpose adhesive, but in particular, a resin that can be fused with polysulfone, for example, polycarbonate, polysulfone (Amoco, Especially preferred are commercial polysulfone Udel), polyether sulfone (trade name Polyethersulfone Victrex manufactured by ICI), and aromatic polyester. Further, the shape of the resin may be any shape such as a shape, a rod shape, a pellet or a powder shape, but a spherical shape, a rod shape or a pellet, which is expected to have a large mechanical maintenance force, is preferable.
接着剤としては、操作性、信頼性、為害性の観点から歯
科用接着剤として実績のある即時重合レジンが好まし
い。As the adhesive, an immediate polymerization resin, which has a proven record as a dental adhesive, is preferable from the viewpoints of operability, reliability, and harm.
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
たスルホンを樹脂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 akuru artificial tooth is joined to the thin polysulfone denture base, the sulfone melted at high temperature is pressed by resin compression molding. 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図にパラフィンワ
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）にニッシン製、商品名ゼ
ニスレジン歯）１を、切端部２と歯頸部３と結ぶ線がパ
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、上フラスコに埋設されたアクリル人工歯の基底面に
即時重合レジンを塗った後、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 FIG. 1 shows an acrylic artificial tooth, and FIG. 2 shows a paraffin wax type. 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 (made by Nissin Co., Ltd., trade name Zenith resin tooth) 1 is used, and the line connecting the cut end 2 and the tooth neck 3 is paraffin. A paraffin wax mold was planted at a 45 ° angle with the wax mold and embedded in gypsum according to the procedure of a dental technician to make a gypsum mold. Next, the paraffin wax was removed, and the base of the acrylic artificial tooth embedded in the upper flask was immediately coated with a polymerization resin, and then a polycarbonate pellet was 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、
負荷速度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 at a load speed of 12 kgf / min.
この結果、人工歯の破折強度は２５kgf であり、実用上
問題の無い高い値であった。As a result, the fracture strength of the artificial tooth was 25 kgf, which was a high value with no practical problems.
実施例２ 人工歯の基底面に即時重合レジンを塗り、ポリサルホン
（アモコ社製、商品名ポリサルホンＵｄｅｌ）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 Compression molding was performed in the same manner as in Example 1 except that an immediate polymerization resin was applied to the basal surface of the artificial tooth, and polysulfone (Amoco, trade name Polysulfone Udel) pellets were sprinkled.
得られたテストピースは１５kgf の維持力を示し、実用
上問題の無い高い値であった。The obtained test piece exhibited a maintaining power of 15 kgf, which was a high value with no practical problems.
比較例１ 人工歯には何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 nothing was added to the artificial tooth.
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.
実施例３ アクリル人工歯（松風製、商品名リアルクラウン）を用
いて実施例１と同様にして石膏型を作り、人工歯にポリ
サルホン（アモコ社製、商品名ポリサルホンＵｄｅｌ）
のペレットを即時重合レジンで付けた後、この石膏型を
射出成形機に取り付けシリンダー温度３５０℃、射出圧
力１３００kg／cm2でポリエーテルサホン（ＩＣＩ社
製、商品名ポリエーテルサルホンＶｉｃｔｒｅｘ）を射
出し成形を行った。Example 3 A gypsum mold was made in the same manner as in Example 1 using an acrylic artificial tooth (manufactured by Shofu, trade name Real Crown), and a polysulfone (made by Amoco, trade name Polysulfone Udel) was made on the artificial tooth.
After the pellets of No. 1 were attached with an immediate polymerization resin, this gypsum mold was attached to an injection molding machine, and a polyether sphon (trade name: Polyether Sulfone Victrex, manufactured by ICI) was manufactured at a cylinder temperature of 350 ° C. and an injection pressure of 1300 kg / cm 2. Injection molding was performed.
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であった。The obtained test piece exhibited a maintaining power of 26 kgf, which was a high value with no practical problems.
比較例２ 人工歯に何も手を加えなかった以外は、実施例３と同様
な方法で圧縮成形を行った。Comparative Example 2 Compression molding was carried out in the same manner as in Example 3 except that no artificial tooth was touched.
得られたテストピースは７kgf の維持力しか示さず、掘
り出しで人工歯が外れるケースが認められた。The obtained test piece showed only the maintenance power of 7 kgf, and it was observed that the artificial tooth came off when excavated.
［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）を示す。 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 type (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 (1)
リル人工歯の基底面に樹脂を接着剤を用いて接着し、圧
縮成形あるいは射出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 an adhesive, and a sulfone resin is press-fitted by compression molding or injection molding,
A method of joining an acrylic artificial tooth with a polysulfone denture base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8828688A JPH0624542B2 (en) | 1988-04-12 | 1988-04-12 | Method of joining artificial teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8828688A JPH0624542B2 (en) | 1988-04-12 | 1988-04-12 | Method of joining artificial teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01259857A JPH01259857A (en) | 1989-10-17 |
| JPH0624542B2 true JPH0624542B2 (en) | 1994-04-06 |
Family
ID=13938664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8828688A Expired - Fee Related JPH0624542B2 (en) | 1988-04-12 | 1988-04-12 | Method of joining artificial teeth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624542B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4195120A1 (en) | 2021-12-13 | 2023-06-14 | Yanmar Holdings Co., Ltd. | Operation information management method, operation information management system, and operation information management program |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4577821B2 (en) * | 2004-07-30 | 2010-11-10 | 株式会社松風 | Artificial tooth movement prevention material |
| JP6854580B2 (en) * | 2014-12-22 | 2021-04-07 | 株式会社ジーシーデンタルプロダクツ | Artificial anterior teeth |
-
1988
- 1988-04-12 JP JP8828688A patent/JPH0624542B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4195120A1 (en) | 2021-12-13 | 2023-06-14 | Yanmar Holdings Co., Ltd. | Operation information management method, operation information management system, and operation information management program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01259857A (en) | 1989-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |