JPS5942648B2 - Agar impression material for combined impression - Google Patents
Agar impression material for combined impressionInfo
- Publication number
- JPS5942648B2 JPS5942648B2 JP55167424A JP16742480A JPS5942648B2 JP S5942648 B2 JPS5942648 B2 JP S5942648B2 JP 55167424 A JP55167424 A JP 55167424A JP 16742480 A JP16742480 A JP 16742480A JP S5942648 B2 JPS5942648 B2 JP S5942648B2
- Authority
- JP
- Japan
- Prior art keywords
- impression
- agar
- impression material
- combined
- plaster
- 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
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- Dental Preparations (AREA)
Description
【発明の詳細な説明】
本発明は、歯科治療における歯型印象の採取に用いる連
合印象用型材に関し、詳細には固化材として例えばアル
ジネート印象材を用いる連合印象材において、弗素系界
面活性剤を含有する寒天印象材を型材とする連合印象用
型材に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an associated impression mold material used for taking dental impressions in dental treatment, and more specifically, in an associated impression material that uses, for example, an alginate impression material as a solidifying material, a fluorine-based surfactant is added to the associated impression material. The present invention relates to a molding material for a combined impression that uses the agar impression material containing the present invention as a molding material.
歯科治療に用いられる単独の印象材には、コロイド系、
ゴム系及び石膏系印象材があり夫々特長を有するが、ア
ンクーカットのある歯や歯牙間隙の多い歯の様な入り込
み構造部或は精密度を要求される部分の印象には、ゾル
状態での流動性が良好で且つゲル化後の弾性が高いとい
う特性を有するコロイド系印象材が優れている。Single impression materials used in dental treatment include colloid,
Rubber-based and gypsum-based impression materials each have their own characteristics, but for impressions of intrusive structures or areas that require precision, such as teeth with anchor cuts or teeth with many gaps, sol-based impression materials are recommended. Colloidal impression materials having good fluidity and high elasticity after gelling are excellent.
しかしながら、従来のコロイド印象材にも下記の様な欠
点があり、飛躍的な普及拡大をはばむ原因となっている
。However, conventional colloid impression materials also have the following drawbacks, which are the causes of hindering their rapid spread.
(1)温度変化を利用した印象採取法である為、慣れる
まで時間がかかる。(1) Since it is an impression taking method that utilizes temperature changes, it takes time to get used to it.
(2)印象材の固化時間が長い為、患者に苦痛を与える
。(2) The long solidification time of the impression material causes pain to the patient.
(3)現状では器材について輸入に頼らざるを得ないこ
ともあって高価であり設備投資に費用がかかる。(3) Currently, equipment has to be imported, which is expensive and requires capital investment.
(4)輸入器材の太きさや型が日本人に合わない。(4) The thickness and shape of imported equipment do not suit Japanese people.
(5)印象採取材料として寒天単独を使う場合は消耗材
料費が高騰する。(5) When agar alone is used as an impression-taking material, the cost of consumable materials increases.
そこで上述の寒天印象材の欠点を改良するものとして寒
天印象材とアルジネート印象材の連合印象材が考え出さ
れた。Therefore, a combination impression material of an agar impression material and an alginate impression material was devised to improve the above-mentioned drawbacks of the agar impression material.
これによると極めて精度の高い全顎印象を簡単にとるこ
とができ、最近臨床室の間で普及され始めている。This method makes it easy to take highly accurate full jaw impressions, and has recently become popular in clinical rooms.
この方法は寒天印象材(即ち寒天、顔料及び充填材等か
らなる印象材)のゾルを治療箇所に当る欠損歯や歯肉面
に流し固化せぬうちに予め冷却されたアルジネート印象
材(即ちアルギン酸、石膏、顔料及び充填料等からなる
印象材)を上顎及び上顎の全歯に圧接するものである。In this method, a sol of agar impression material (i.e., an impression material consisting of agar, pigments, fillers, etc.) is poured onto the defective tooth or gingival surface of the treatment area, and before it solidifies, a pre-cooled alginate impression material (i.e., alginic acid, Impression materials (made of plaster, pigments, filling materials, etc.) are pressed against the upper jaw and all teeth in the upper jaw.
アルジネート印象材の冷却は準備中の硬化を遅延させる
為であり、冷水で練和し且つ冷却保持する。The purpose of cooling the alginate impression material is to delay hardening during preparation, so it is kneaded with cold water and kept cool.
この操作は画材接着後の固化時間を短かくする効果もあ
る。This operation also has the effect of shortening the solidification time after adhesion of the art materials.
尚石膏の表面状態を向上させる目的で上記各印象材に硫
酸カリウムを加えることがある。Note that potassium sulfate may be added to each of the above impression materials for the purpose of improving the surface condition of the plaster.
硫酸カリウムは石膏の硬化促進剤の働きを有し、従って
石膏硬化の遅延による表面荒れが緩和され、良好な表面
状態の石膏模型が得られる。Potassium sulfate acts as a gypsum hardening accelerator, so surface roughness caused by delayed gypsum hardening is alleviated, and a gypsum model with a good surface condition can be obtained.
ところが硫酸カリウムの添加は寒天印象材とアルジネー
ト印象材の接着を阻害するという連合印象材にとって致
命的な欠点を発生させる原因にもなっている。However, the addition of potassium sulfate inhibits the adhesion between the agar impression material and the alginate impression material, which is a fatal drawback for the combined impression material.
この様なところから現在汎用されている連合印段付は寒
天印象材とアルシネ−1・印象材の接着強度を向上させ
る為に硫酸カリウムを加えない様にしている。For this reason, in the currently widely used joint stamping, potassium sulfate is not added in order to improve the adhesive strength between the agar impression material and the Alcine-1 impression material.
従って石膏模型の表面が荒れたり、又臨床家が印象材を
使用する度に煮沸−保温一冷却一再煮沸・・・の操作を
繰り返すうちに顔料(殊に疎水性顔料)が凝集するとい
う欠点を有している。Therefore, the surface of the plaster model may become rough, and pigments (especially hydrophobic pigments) may aggregate as clinicians repeat the process of boiling, keeping warm, cooling, and boiling again each time they use the impression material. have.
又顔料が水溶性の場合には凝集は余り問題とならないが
、石膏模型に色が移行するという欠点が生じる。Furthermore, when the pigment is water-soluble, aggregation does not pose much of a problem, but there is a drawback that the color transfers to the plaster model.
顔料等の凝集を防ぐ他の手段として分散剤を入れる方法
もあるが分散剤は石膏の硬化に対して遅延剤さして働き
石膏表向が荒れるという欠点が指摘されている。Another method for preventing agglomeration of pigments and the like is to add a dispersant, but it has been pointed out that the dispersant acts as a retardant for the hardening of the plaster, causing the surface of the plaster to become rough.
上述の如く寒天/アルジネート連合印象材は型取り表面
が精密で歯の様な入り込み構造のものでも容易に印象を
採取することができるという優れた利点を有するが、一
方では石膏表面状態の不良、或は顔料の凝集という欠点
を残している。As mentioned above, the agar/alginate combination impression material has the excellent advantage that the molding surface is precise and impressions can be easily taken even from tooth-like structures. Alternatively, there remains the drawback of agglomeration of pigments.
詰まるところ、上述した内容から連合印象材の具備すべ
き望ましい条件を示すと次のようになると考える。Ultimately, based on the above-mentioned content, we believe that the desirable conditions that the combined impression material should have are as follows.
(1)迅速且つ正確に歯型を再現でき、取り出しの際に
何らの障害を生じない弾性を有する。(1) It has elasticity that enables rapid and accurate reproduction of tooth impressions and does not cause any trouble during removal.
(2)型材と固化材とが密着して型材の熱を固化材が急
速に吸収できる。(2) The mold material and the solidifying material are in close contact with each other, so that the solidifying material can rapidly absorb the heat of the molding material.
(3)型材と固化材が完全に接着し一体化する。(3) The mold material and the solidifying material are completely bonded and integrated.
(4)石膏歯型の硬化速度を遅延させることなく良好な
表面状態が得られる。(4) A good surface condition can be obtained without delaying the curing speed of the plaster tooth mold.
(5)型材中の顔料に凝集が起こらない。(5) No aggregation occurs in the pigment in the mold material.
本発明は、上記の条件を満足する連合印象用寒天印象材
を提供するものであって、その目的の接点は寒天印象材
と例えばアルジネート印象材(固化材として限定される
ものではない)との接着を強化し使用中に型材中の顔料
が凝集することなく、尚且つ石膏の表面が滑沢となる寒
天/アルジネート等連合印象材を提供しようとする点に
ある。The present invention provides an agar impression material for association impressions that satisfies the above conditions, and the intended contact point is between the agar impression material and, for example, an alginate impression material (which is not limited to the solidifying material). The object of the present invention is to provide a combined impression material such as agar/alginate that strengthens adhesion, prevents pigments in the mold material from agglomerating during use, and provides a smooth plaster surface.
本発明の目的を達成し得た連合印象用寒天印象材は、寒
天、硼砂、顔料等からなる印象材に弗素系界面活性剤を
0.1〜065重量%添加する点に特徴があり、かかる
印象材を型材とし、アルジネート印象材等を固化材とし
て用いる構成になっている。The agar impression material for combined impressions that has achieved the object of the present invention is characterized in that 0.1 to 065% by weight of a fluorine-based surfactant is added to the impression material made of agar, borax, pigment, etc. The structure is such that an impression material is used as a mold material and an alginate impression material or the like is used as a solidifying material.
本発明に用いる弗素系界面活性剤は、一般に合成樹脂、
有機溶剤等に添加して表面張力を低下させる湿潤剤等と
して用いられるものであり、具体的にはパーフルオロア
ルキルカルボン酸塩(アニオン系界面活性剤)、パーフ
ルオロアルキルアミン化合物(カチオン系界面活性剤)
、パーフルオロアルキルベタイン(両性界面活性剤)、
バーフルオロアルキルエチレンオキシド(ノニオン系界
面活性剤)等を挙げることができる。The fluorine-based surfactant used in the present invention is generally a synthetic resin,
It is used as a wetting agent etc. that is added to organic solvents etc. to lower the surface tension. agent)
, perfluoroalkyl betaine (amphoteric surfactant),
Examples include barfluoroalkylethylene oxide (nonionic surfactant).
そして本発明の効果も本活性剤のかかる湿潤作用に由来
するものと考えるが、その効果は予想を絶するものであ
った。It is believed that the effects of the present invention are also derived from such a wetting action of the present active agent, but the effects were beyond expectations.
従来用いられた界面活性剤では、その発泡効果の為に印
象材の表面状態が粗くなる欠点があったが、本弗素系界
面活性剤ではそのような現象は見られず、その添加によ
り混合成分の分散性が向上され顔料の凝集は解消された
。Conventionally used surfactants had the disadvantage of roughening the surface of the impression material due to their foaming effect, but this fluorine-based surfactant does not cause such a phenomenon, and its addition improves the quality of the mixed components. The dispersibility of the pigment was improved and the aggregation of the pigment was eliminated.
更に硫酸カリウム存在下で型材と固化材の接着性を良好
とすると共に、従来試みられた分散剤でしばしば経験さ
れる様な石膏硬化に対する遅延作用も少なくなり、滑沢
な表面状態の石膏模型が得られた。Furthermore, in the presence of potassium sulfate, the adhesion between the mold material and the solidifying agent is improved, and the delaying effect on plaster hardening that is often experienced with conventional dispersants is reduced, resulting in a plaster model with a smooth surface. Obtained.
尚上記効果を発揮させる上で弗素系界面活性剤は0.1
〜0.5重量%含有させる必要がある。In addition, in order to exhibit the above effects, the fluorine-based surfactant must be 0.1
It is necessary to contain up to 0.5% by weight.
含有量が0.1重量%未満では上記効果が得られず、一
方0.5重量%を超えるとゲル強度、永久ひずみ、弾性
ひずみ等の物性が低下する。If the content is less than 0.1% by weight, the above effects cannot be obtained, while if the content exceeds 0.5% by weight, physical properties such as gel strength, permanent strain, and elastic strain will deteriorate.
次に本発明の型材となる寒天印象材の各組成割合及びそ
の推奨理由を示すと次の通りである。Next, the composition ratios of the agar impression material used as the molding material of the present invention and the reasons for their recommendation are as follows.
(A) 粉末寒天3.0〜15.0重量%(1)組成
割合が下限未満の時
■ 粘性が小さくゲル状態保持が困難になる。(A) Powder agar 3.0 to 15.0% by weight (1) When the composition ratio is less than the lower limit ■ The viscosity is low and it becomes difficult to maintain the gel state.
■ 水分量が多いので寸法変化が大きく歯の印象を正確
にとれない。■ Due to the high water content, dimensional changes are large and accurate impressions of teeth cannot be taken.
■ 上顎の印象採取時、流れ落ちる。■ When taking an impression of the upper jaw, it flows down.
(2)組成割合が上限を超える時
■ 粘性が高く流動性が無・1為、歯牙微細間隙への浸
透が悪くなり正確な印象採取が困難となる。(2) When the composition ratio exceeds the upper limit■ Because the viscosity is high and the fluidity is nil/1, it becomes difficult to penetrate into the minute gaps of the teeth, making it difficult to take accurate impressions.
■ 寒天用注射針は一般的に0.8 mmφを使用して
いるので出にくく、針部でゲル化して詰まることがある
。■ Agar injection needles generally use a diameter of 0.8 mm, so they do not come out easily and may gel at the needle and become clogged.
(B) 硼砂o、i〜0,3重量%
ゲル強度を向上させる働きを有し、0.10!、以上で
満足できるゲル強度となり、0.3%まで漸増するが過
量となるのは経済的でない。(B) Borax o, i ~ 0.3% by weight Has the function of improving gel strength, 0.10! , the gel strength is satisfactory at 0.3% or more, but it is not economical to use an excessive amount.
硼砂が寒天と反応して硼砂塩をつくり、ミセルの骨組み
強さ乃至は密度を高めることによるものと考えられる。This is thought to be due to the fact that borax reacts with agar to form borax salt, increasing the skeletal strength or density of the micelles.
(C) 顔料0.1〜0.3重量% (1)組成割合が下限未満の時 ■ 型材部の色が薄く印象の良否判定が困難となる。(C) Pigment 0.1-0.3% by weight (1) When the composition ratio is less than the lower limit ■ The color of the mold material is pale, making it difficult to judge whether the impression is good or bad.
■ 顔料濃度が薄い為に寒天内の気泡が目立ち製品とし
て好ましくない。■ Because the pigment concentration is low, air bubbles in the agar become noticeable, making it undesirable as a product.
(2)組成割合が上限を超える時
必要量あれば十分であり過多は印象材価格を上昇させる
。(2) When the composition ratio exceeds the upper limit, the required amount is sufficient, and excess increases the price of the impression material.
(D 弗素系界面活性剤0.1〜0.5重量%組成割合
限定理由は前述の通り。(D The reason for limiting the composition ratio of 0.1 to 0.5% by weight of fluorine-based surfactant is as described above.
(E) 7J(96,7〜88.9重量%水分の組成
割合は他剤残部となっており、当然その高低は濃度ひい
ては粘度に関与している。(E) 7J (96.7 to 88.9% by weight) The composition ratio of water is the remainder of the other agents, and its level naturally affects the concentration and ultimately the viscosity.
最後に本発明の実施例について説明する。Finally, examples of the present invention will be described.
実施例 1
粉末寒天 11重量%
硼 砂 0.2〃
顔 料 0.211″−ルオ0ア
″キ 0.1.フ
ルカルボン酸塩
水 88.5 〃本発明の型材
用寒天印象材は上記配合比の原料をステンレス容器中で
十分に混合し室温で24時間放置、湯浴上で約1時間加
熱撹拌し得られたゾル状粘性体を適当な形態でゲル状物
とすて保管する。Example 1 Powdered agar 11% by weight Borax 0.2 Pigment 0.211''-Luo0a'' 0.1. Full carboxylic acid salt water 88.5 The agar impression material for molds of the present invention was obtained by thoroughly mixing the raw materials with the above-mentioned mixing ratio in a stainless steel container, leaving the mixture at room temperature for 24 hours, and heating and stirring on a hot water bath for about 1 hour. The sol-like viscous material is stored in an appropriate form as a gel-like material.
用時には、このゲル状物をゾル化温度まで加温した後、
必要量を欠損歯或は歯牙間隙に注入し次に寒天印象材が
固化しないうちに予め冷却されたゾル状の固化材をその
上に被覆し一体化させ連合印象材とする。When in use, after heating this gel to the solization temperature,
The required amount is injected into the missing tooth or tooth gap, and then, before the agar impression material is solidified, a pre-cooled sol-like solidifying material is coated thereon and integrated to form a combined impression material.
こうして得られた印象に石膏を流し込み歯型模型を製作
したところ、表面状態が滑らかであると共に光択があり
、且つ正確な模型を得るこ吉ができた。When plaster was poured into the impression obtained in this way and a tooth model was made, it was possible to obtain a model with a smooth surface, good light selection, and accuracy.
又模型製作に要した時間も従来の寒天印象材(弗素系界
面活性剤以外の界面活性剤を含有したもの)を使用した
場合に比べて短縮することができた。Furthermore, the time required for model production was also reduced compared to when conventional agar impression materials (containing surfactants other than fluorine-based surfactants) were used.
尚上記印象に当たっては前記組成のゾル状粘性物を分注
器にて約2mlずつカートリッジに充填し端部をアルミ
ニウムで封じた状態で保管しておいたものを使用したが
、上記ゾル状粘性物をステンレスパイプ若しくはガラス
管に吸引し冷却固化後、長さ5cIrL程度に切断しス
ティック状とする方法によって保管したものを使用する
こともできる。For the above impression, a sol-like viscous material of the above composition was filled into a cartridge in a volume of about 2 ml using a dispenser and stored with the end sealed with aluminum. It is also possible to use a product that has been stored by suctioning it into a stainless steel pipe or glass tube, cooling and solidifying it, cutting it into a stick shape by cutting it into a length of about 5 cIrL.
Claims (1)
において、寒天印象材中に弗素系界面活性剤を01〜0
5重量%含有させてなることを特徴とする寒天印象材。1. In the combined impression mold material used for taking tooth impressions for dental treatment, 01 to 0 fluorine-based surfactant is added to the agar impression material.
An agar impression material characterized by containing 5% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167424A JPS5942648B2 (en) | 1980-11-27 | 1980-11-27 | Agar impression material for combined impression |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167424A JPS5942648B2 (en) | 1980-11-27 | 1980-11-27 | Agar impression material for combined impression |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5791907A JPS5791907A (en) | 1982-06-08 |
JPS5942648B2 true JPS5942648B2 (en) | 1984-10-16 |
Family
ID=15849437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55167424A Expired JPS5942648B2 (en) | 1980-11-27 | 1980-11-27 | Agar impression material for combined impression |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5942648B2 (en) |
-
1980
- 1980-11-27 JP JP55167424A patent/JPS5942648B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5791907A (en) | 1982-06-08 |
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