WO1990008530A1 - Root canal filling material comprising hardenable paste - Google Patents
Root canal filling material comprising hardenable paste Download PDFInfo
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- WO1990008530A1 WO1990008530A1 PCT/JP1990/000093 JP9000093W WO9008530A1 WO 1990008530 A1 WO1990008530 A1 WO 1990008530A1 JP 9000093 W JP9000093 W JP 9000093W WO 9008530 A1 WO9008530 A1 WO 9008530A1
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- root canal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/804—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising manganese oxide
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- the present invention relates to a hardening glue root canal filling material used as a root canal filling material after treatment of a medullary root canal or an infected root canal in dental treatment.
- the root canal filling operation in dental treatment is performed by applying a root canal filling material to seal the root lumen after extraction or after infection of the root canal to protect the root apical wound and to cure the wound. This is a procedure for preserving teeth after operation.
- such treatments include non-hardening glue root canal filling materials (eg, formalin-based) for the purpose of accelerating acne to root apical tissue or for acne bony scarring, hardening glue root canal fillings
- non-hardening glue root canal filling materials eg, formalin-based
- hardening glue root canal fillings Use of solid root canal material (for example, zinc oxide-eugenol) or solid root canal filling material (for example, one point of gut tapper) for physical occlusion, or solid root canal filling material
- solid root canal material for example, zinc oxide-eugenol
- solid root canal filling material for example, one point of gut tapper
- solid root canal filling material for example, one point of gut tapper
- the non-hardening glue root canal filling material can be expected to erupt in the tissue, but it does not harden in the root canal, so there is concern about long-term application.
- solid root The vascular fillers only physically block, and no tissue erosion can be expected.
- a curable glue root canal filling material that hardens in the root canal after a certain period of time after kneading achieves both the purpose of setting the braid and closing the root canal. I can expect it.
- solid root canal filling material is used together with a sealer as a sealer, it can be expected that solid root canal filling materials such as gutter perch points are fixed to the root canal wall, and that there is no dead space.
- zinc oxide-eugenol cement which is mainly composed of zinc oxide and kneaded with eugenol, has been widely used.
- the components of this cement are chemically different from the components of the teeth, and furthermore, it has been pointed out that eugenol has a stimulating effect on the braces surrounding the root tip, especially in terms of tissue affinity. Not a satisfactory material.
- the fat invention is similar to the main component of bone and teeth, like cc-tricalcium phosphate
- the present invention relates to a curable glue root canal filling material composed of a powder containing tetracalcium phosphate powder as a main component and a solution containing oleic acid.
- the curable glue root canal filling material of the present invention is excellent in tissue affinity, has a low cured product collapse rate, and has high performance as a root canal filling material.
- the present invention comprises tetracalcium phosphate excellent in tissue affinity as a main component and has extremely high affinity for living tissues, and promotes the regeneration of fc dentin or osteoid tissue Powder-liquid kneading-type mixture composed of a powder containing magnesium oxide as a curing agent, rosin as a water repellent and an operability improving agent and an X-ray contrast material, and a liquid containing oleic acid.
- the present invention relates to a curable glue root canal filling material.
- Each component of the powder in the curable size root canal filling material of the present invention is preferably 30 to 50% by weight, more preferably 3 to 50% by weight of tetracalcium phosphate based on the total weight of the powder. 5 to 45% by weight, preferably 10 to 30% by weight of magnesium oxide, more preferably 15 to 25% by weight, and preferably 10 to 30% by weight of rosin, more preferably 15 to 25% by weight. %, And bismuth subcarbonate and phosphoric acid or barium diacid as the X-ray contrast agent are preferably used in a proportion of 10 to 30% by weight, more preferably 15 to 25% by weight.
- Oleic acid is used as the liquid agent, but olive oil containing oleic acid as a main component can also be used.
- the ratio between the powder (weight: unit g) and the liquid (capacity: unit £) is preferably 1.5 to 4.5 (g / L) (this ratio is referred to as powder-liquid ratio), and more preferably 2.
- the root canal filling material of the present invention has a low disintegration rate and has a low disintegration rate. It can be seen that the root canal filling material has extremely excellent properties.
- Example 2 The powder and liquid used in Example 1 were kneaded at a powder-liquid ratio of 2.0, and then filled in a polytetrafluoroethylene mold to prepare a sample having a diameter of 10 nii and a height of 1 M, and a sample of 7 days was prepared. Later, an agar overlay test using cultured cells was performed using mouse fibroblasts (L-929) in accordance with the intraocular lens approval standard (Yakuhin No. 489). The results are shown in Table 2.
- the root canal filling material of the present invention has extremely excellent biocompatibility.
- the root canal filling material of the comparative example is inferior in biocompatibility and is not suitable as a filling material for living bodies.
- Table 1
- the curable glue root canal filling material of the present invention has been pointed out by the fact that tetracalcium phosphate as a main component is finally converted into hydroxyapatite in the root canal and zinc oxide-eugenol cement. Since there is no tissue irritation to the surrounding tissue at the root tip, it has excellent biological tissue affinity and can be expected to promote treatment by the effect of magnesium oxide.
- the root canal filling material of the present invention is used for a root canal filling operation by kneading a powder and a liquid agent, but the operability at that time is easy, and the root canal filling material is filled into the details of the root canal.
- the curing Since the curing is completed in the inside, it is useful as a sealer for filling the root canal in combination with the gutta-pouch point, and complete occlusion of the root canal can be achieved.
- the disintegration rate of the cured product is low, there is no danger that the root canal filler will decompose into the composition liquid after curing.
- bismuth subcarbonate and Z or barium nitrate as an X-ray contrast material, it has an appropriate X-ray contrast property, and the state of root canal filling can be easily observed.
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Abstract
The invention provides a root canal filling material comprising ahardenable paste prepared by kneading a powder and a liquid, wherein the powder is one obtained by compounding tetracalcium phosphate having an excellent affinity to the tissue as a major component, a hardening agent comprising magnesium oxide having an extremely high affinity to the vital tissue and accelerating the new growth of a dentin or an osteoid tissue, rosin as a water repellant and workability improver, and an X ray contrast medium and the liquid is composed of oleic acid. This filling material has an excellent affinity to the tissue, undergoes less degradation after being hardened, and shows high performance as the root canal filling material.
Description
明 細 硬化性糊剤根管充塡材 技術分野 Membrane Curable glue Root canal filling material Technical field
太発明は、 歯科治療に於いて、 抜髄根管或いは感染根管治療後の根管 充塡材料として用いる硬化性糊剤根管充塡材に関する。 背景技衛 TECHNICAL FIELD The present invention relates to a hardening glue root canal filling material used as a root canal filling material after treatment of a medullary root canal or an infected root canal in dental treatment. Background engineer
歯科治療に於ける根管充塡操作は、 抜键後或いは感染根管抬癢後の根 管腔を、 根管充塡材の適用により密閉し、 根端部創傷の保護、 治瘡を図 り、 操作後の歯の保存を目的とする処置である。 The root canal filling operation in dental treatment is performed by applying a root canal filling material to seal the root lumen after extraction or after infection of the root canal to protect the root apical wound and to cure the wound. This is a procedure for preserving teeth after operation.
従来からこのような処置には、 根端組織に対する治瘡促進或いは骨性 瘢痕抬瘡を目的とする非硬化性糊剤根管充塡材 （例えば、 ホルマリン系 ) 、 硬化性糊剤根管充塡材 （例えば、 酸化亜鉛-ユージノール系） 或い は物理的な閉塞を目的とする固形根管充塡材 （例えば、 ガウタパ一チヤ 一ポイント） の使用、 又は、 固形根管充塡材を、 塡塞の芯 （マスタ一ポ イント） として使用し、 根管壁とマスターポイントとの間の死腔を埋め るために、 糊剤根管充塡材 （シーラー） を併用する等の方法が実旄され ている。 Conventionally, such treatments include non-hardening glue root canal filling materials (eg, formalin-based) for the purpose of accelerating acne to root apical tissue or for acne bony scarring, hardening glue root canal fillings Use of solid root canal material (for example, zinc oxide-eugenol) or solid root canal filling material (for example, one point of gut tapper) for physical occlusion, or solid root canal filling material It has been practiced to use a glue root canal filling material (sealer) to fill the dead space between the root canal wall and the master point. It has been neglected.
これらのうち非硬化性糊剤根管充塡材は、 組繳の抬瘡は期待できるが 、 根管内で硬化しないため、 長期間の適用には不安がある。 又、 固形根
管充塡材は物理的に閉塞するのみであり、 組織の治瘡は期待できない。 これに対して、 練和後或る一定の睁間経過して根管内で硬化する硬化 性糊剤根管充塡材は、 組縝の治痊及び根管の閉塞の両目的の達成を期待 できる。 又、 シーラーとして固形根管充塡材と併用した場合には ガッ タパーチヤーポイント等の固形根管充塡材を根管壁に固着ざせ、 死腔の 存在を皆無にすることが期待できる。 Of these, the non-hardening glue root canal filling material can be expected to erupt in the tissue, but it does not harden in the root canal, so there is concern about long-term application. Also, solid root The vascular fillers only physically block, and no tissue erosion can be expected. On the other hand, a curable glue root canal filling material that hardens in the root canal after a certain period of time after kneading achieves both the purpose of setting the braid and closing the root canal. I can expect it. When a solid root canal filling material is used together with a sealer as a sealer, it can be expected that solid root canal filling materials such as gutter perch points are fixed to the root canal wall, and that there is no dead space.
この硬化性糊剤根管充塡材としては、 従来、 酸化亜鉛を主成分とし、 これとユージノールを練和して用いる酸化亜鉛—ユージノ一ルセメン卜 が多く用いられてきた。 しかしながら、 このセメントの成分は化学的に 歯の成分と異なり、 更に、 ユージノールによる根端部の周囲組錢に対す る組纔刺激性も指摘されており、 特に、 組織親和性の面から必ずしも潢 足できる材料ではない。 As the curable glue root canal filling material, zinc oxide-eugenol cement, which is mainly composed of zinc oxide and kneaded with eugenol, has been widely used. However, the components of this cement are chemically different from the components of the teeth, and furthermore, it has been pointed out that eugenol has a stimulating effect on the braces surrounding the root tip, especially in terms of tissue affinity. Not a satisfactory material.
この問題点を解決するため、 最近では、 骨や歯の主成分と近似した組 綣を有する ct—リン酸三カルシウム粉末又は CC—リン酸三カルシウム粉 末とハイドロキシァパタイ卜粉末を主成分とし、 これにグアヤコール等 を練和して用いる硬化性糊剤根管充塡材が提案されている （例えば、 特 開昭 6 2— 2 5 5 4 0 3号公報） 。 In order to solve this problem, recently, ct-tricalcium phosphate powder or CC-tricalcium phosphate powder and hydroxyapatite powder, which have a composition similar to that of bone and teeth, are mainly used. A curable glue root canal filling material that uses guaiacol or the like kneaded with it has been proposed (for example, Japanese Patent Application Laid-Open No. 62-254003).
しかしながら、 前記公知技衛に於いては、 硬化物の唐壊率が高く、 根 管充塡材としての要求性能を满足しないという問題がある。 発 ¾の開示 However, there is a problem in the above-mentioned known technology that the hardened material has a high crushing rate and does not satisfy the required performance as a root canal filling material. Disclosure of discovery
太発明は、 cc—リン酸三カルシウムと同様に、 骨や歯の主成分と近似
した組成を有する、 リン酸四カルシウム粉末を主成分とする粉剤と、 ォ レイン酸からなる液剤とから構成される硬化性糊剤根管充塡材に関する ものである。 本発明の硬化性糊剤根管充塡材は、 組織親和性に優れてお り、 硬化物の崩壊率が低く、 根管充塡材として高い性能を有する。 即ち、 本発明は、 組織親和性に優れたリン酸四カルシウムを主成分と し、 且つ、 生活組織に対して極めて高い親和性を有し、 しか fc象牙質又 は類骨組織の新生を促進する酸化マグネシウムを硬化剤とし、 これらに 撥水剤及び操作性改良剤としてのロジン及び X線造影材を 合してなる 粉剤と、 ォレイン酸からなる液剤とから構成される粉液練和型の硬化性 糊剤根管充塡材に関するものである。 The fat invention is similar to the main component of bone and teeth, like cc-tricalcium phosphate The present invention relates to a curable glue root canal filling material composed of a powder containing tetracalcium phosphate powder as a main component and a solution containing oleic acid. The curable glue root canal filling material of the present invention is excellent in tissue affinity, has a low cured product collapse rate, and has high performance as a root canal filling material. That is, the present invention comprises tetracalcium phosphate excellent in tissue affinity as a main component and has extremely high affinity for living tissues, and promotes the regeneration of fc dentin or osteoid tissue Powder-liquid kneading-type mixture composed of a powder containing magnesium oxide as a curing agent, rosin as a water repellent and an operability improving agent and an X-ray contrast material, and a liquid containing oleic acid. The present invention relates to a curable glue root canal filling material.
本発明の硬化性糊剤根管充塡材に於ける粉剤の各成分は、 粉剤の全重 量に対して、 リン酸四カルシウムを好ましくは 3 0〜5 0重量％、 さら に好ましくは 3 5〜4 5重量％、 酸化マグネシウムを好ましくは 1 0〜 3 0重量 さらに好ましくは 1 5〜2 5重量％、 ロジンを好ましくは 1 0〜3 0重量％、 さらに好ましくは 1 5〜2 5重量％、 X線造影材と しての次炭酸ビスマス及びノ又は硗酸バリゥムを好ましくは 1 0〜3 0 重量％、 さらに好ましくは 1 5〜2 5重量％の割合で使用する。 Each component of the powder in the curable size root canal filling material of the present invention is preferably 30 to 50% by weight, more preferably 3 to 50% by weight of tetracalcium phosphate based on the total weight of the powder. 5 to 45% by weight, preferably 10 to 30% by weight of magnesium oxide, more preferably 15 to 25% by weight, and preferably 10 to 30% by weight of rosin, more preferably 15 to 25% by weight. %, And bismuth subcarbonate and phosphoric acid or barium diacid as the X-ray contrast agent are preferably used in a proportion of 10 to 30% by weight, more preferably 15 to 25% by weight.
液剤としてはォレイン酸を使用するが、 ォレイン酸を主成分とするォ リーブ油を使用することもできる。 Oleic acid is used as the liquid agent, but olive oil containing oleic acid as a main component can also be used.
粉剤 （重量：単位 g ) と液剤 （容量：単位 m £ ) とは、 好ましくは 1 . 5〜4 . 5 ( g/ L ) の比率 （この比率を粉液比という） 、 さらに 好ましくは 2 . 0〜4 . 0 ( g/ ) の比率で練和使用する。 この比率
の範囲であれば、 練和及び根管充塡操作が容易であり、 硬化性糊剤根管 充塡材としての歯科理工学的性質、 即ち、 硬化時間、 被膜厚さが適正で あり、 崩壊率が植めて低く、 且つ、 細胞培養試験により組钂親和性に優 れていることが確認された。 発明を実旌するための最良の形態 The ratio between the powder (weight: unit g) and the liquid (capacity: unit £) is preferably 1.5 to 4.5 (g / L) (this ratio is referred to as powder-liquid ratio), and more preferably 2. Mix at a ratio of 0 to 4.0 (g /). This ratio Within this range, the mixing and root canal filling operations are easy, and the dental science and engineering properties as a curable glue root canal filling material, that is, the curing time and coating thickness are appropriate, and collapse The ratio was low when planted and it was confirmed by cell culture tests that it had excellent tissue affinity. Best mode for carrying out the invention
以下に実施例によって术発明を更に詳しく説明する。 Hereinafter, the present invention will be described in more detail by way of examples.
(実施例及び比較例〕 (Examples and Comparative Examples)
(製造倒 1 ) (Manufacturing 1)
リン酸水素カルシウム二水和物と炭酸カルシウムとを、 1 ： 1のモル 比で均一に混合し、 1 6 0 0 eCの瘟度で 2時間焼成した後急冷してリン 酸四カルシウムを合成した。 このリン酸四カルシウムをボールミルで微 粉碎し、 3 5 0メッシュの篩を通過させて所定の粒度のリン酸四カルシ ゥム粉末を得た。 And calcium hydrogen phosphate dihydrate and calcium carbonate, 1: uniformly mixed in a molar ratio, 1 6 0 0 e C synthesized tetracalcium phosphate by quenching after calcination for 2 hours at瘟度of did. This tetracalcium phosphate was finely pulverized with a ball mill and passed through a 350-mesh sieve to obtain tetracalcium phosphate powder having a predetermined particle size.
(実施例 1〜4 ) (Examples 1 to 4)
製造例 1で製造したリン酸四カルシウム粉末に、 他の粉剤成分を第 1 表に示す割合で S合した粉剤と、 液剤としてのォレイン酸とを、 第 1表 に示す粉液比で練和し、 I S O - 6 8 7 6に準拠して硬化時間、 被膜厚 さ及び崩壊率を酒定した。 結果を第 1表に示す。 Mix the powder of tetracalcium phosphate produced in Production Example 1 with other powder components in the ratio shown in Table 1 and oleic acid as a liquid at the powder-liquid ratio shown in Table 1. The curing time, coating thickness and disintegration rate were determined according to ISO-68776. The results are shown in Table 1.
第 1表から明らかなように、 术発明の根管充塡材は崩壊率が Sめて低 く、 硬化後に根管充塡材が組麇液に溶解することのない、 歯科理工学的
性質の極めて優れた根管充塡材であることがわかる。 As is evident from Table 1, the root canal filling material of the present invention has a low disintegration rate and has a low disintegration rate. It can be seen that the root canal filling material has extremely excellent properties.
(比較例 1〜2 ) (Comparative Examples 1-2)
第 1表に示す割合で 合した α -リン酸三カルシウム系粉剤と、 液剤 とを粉液比 3 . 0で練和し、 I S O— 6 8 7 6に準拠して硬化時間、 被 膜厚さ及び崩壊率を翻定した。 結果を第 1表に示す。 The α-tricalcium phosphate-based powder mixed in the ratio shown in Table 1 and the liquid were mixed at a powder-liquid ratio of 3.0, and the curing time and film thickness were measured in accordance with ISO-6876. And the decay rate. The results are shown in Table 1.
第 1表より、 比較^の根管充塡材は崩壊率が高く、 硬化後に組纔液に 溶解して充塡材としての用をなさなくなることが明らかである。 From Table 1, it is clear that the root canal filler of Comparative ^ has a high disintegration rate and dissolves in the brackish fluid after hardening and is no longer useful as a filler.
(実施例 5 ) (Example 5)
実施例 1で使用した粉剤と液剤を粉液比 2 . 0で練和後、 ポリテトラ フルォロエチレン製の型に充塡して、 直径 1 0 nii、 高さ l Mの検体を作 成し、 7日後にマウス線雜芽細胞 （L— 9 2 9 ) を使用して、 眼内レン ズ承認基準 （薬発第 4 8 9号） に準じて培養細胞による寒天重層試験を 行った。 結果を第 2表に示す。 The powder and liquid used in Example 1 were kneaded at a powder-liquid ratio of 2.0, and then filled in a polytetrafluoroethylene mold to prepare a sample having a diameter of 10 nii and a height of 1 M, and a sample of 7 days was prepared. Later, an agar overlay test using cultured cells was performed using mouse fibroblasts (L-929) in accordance with the intraocular lens approval standard (Yakuhin No. 489). The results are shown in Table 2.
この結果から明らかな如く、 本発明の根管充塡材は極めて生体親和性 が優れている。 As is clear from these results, the root canal filling material of the present invention has extremely excellent biocompatibility.
(比較例 3 ) (Comparative Example 3)
酸化亜鉛 6 0重量％、 水酸化カルシウム 1 5重量％、 ロジン 2 5重 量％からなる組成の粉剤と、 液剤としてのュ一ジノールとを、 粉液比 3 . 0で練和した以外は実尨例 5と同様の操作を行った。 結果を第 2表 に示す。 Except that a powder having a composition consisting of 60% by weight of zinc oxide, 15% by weight of calcium hydroxide and 25% by weight of rosin and kudinol as a liquid were kneaded at a powder / liquid ratio of 3.0. The same operation as in Example 5 was performed. Table 2 shows the results.
結果から明らかな如く、 比較例の根管充塡材は生体親和性に劣ってお り、 生体用の充塡材としては適切ではない。
第 1表 As is clear from the results, the root canal filling material of the comparative example is inferior in biocompatibility and is not suitable as a filling material for living bodies. Table 1
(粉剤、 液剤量の単位：重量％) 第 2表 (Unit of powders and liquids: wt%) Table 2
検 体 ゾーンインデックス 融解インデックス 実 例 5 0 ひ Specimen Zone index Melting index Example 50
比較例 3 3 5 Comparative Example 3 3 5
ポジティブコン卜ロール 3 5 Positive control 3 5
ネガティブコン卜ロール 0 0
産業上の利用可能性 Negative control 0 0 Industrial applicability
本発明の硬化性糊剤根管充塡材は、 主成分のリン酸四カルシウムが根 管内に於いて最終的にはハイドロキシァパタイ卜に転換すること及び酸 化亜鉛 -ユージノールセメントで指摘されているような根端部の周囲組 織に対する組織刺激性もないことから、 優れた生体組纔親和性を有し、 酸化マグネシウムの効果により治療を促進することが期待できる。 又、 本発明の根管充塡材は粉剤と液剤を練和して根管充塡操作に用いるが、 その際の操作性が容易で根管の細部にまで充塡され、 更に、 根管内に於 いて硬化が完了することから、 ガッタパ一チヤ一ポイントとの併用根管 充塡用のシーラ一として fc有用であり、 根管腔の完全な閉塞が図れる。 そのうえ硬化物の崩壊率が低いため、 硬化後に根管充塡材が組搽液に瑢 解する恐れがない。 更に、 X線造影材として次炭酸ビスマス及び Z又は 硗酸バリゥムを配合してあることにより適度の X線造影性を有し、 根管 充塡の状態を容易に観察することができる。
The curable glue root canal filling material of the present invention has been pointed out by the fact that tetracalcium phosphate as a main component is finally converted into hydroxyapatite in the root canal and zinc oxide-eugenol cement. Since there is no tissue irritation to the surrounding tissue at the root tip, it has excellent biological tissue affinity and can be expected to promote treatment by the effect of magnesium oxide. The root canal filling material of the present invention is used for a root canal filling operation by kneading a powder and a liquid agent, but the operability at that time is easy, and the root canal filling material is filled into the details of the root canal. Since the curing is completed in the inside, it is useful as a sealer for filling the root canal in combination with the gutta-pouch point, and complete occlusion of the root canal can be achieved. In addition, since the disintegration rate of the cured product is low, there is no danger that the root canal filler will decompose into the composition liquid after curing. Furthermore, by blending bismuth subcarbonate and Z or barium nitrate as an X-ray contrast material, it has an appropriate X-ray contrast property, and the state of root canal filling can be easily observed.
Claims
1 . リン酸四カルシウム粉末、 酸化マグネシウム、 ロジン、 X線造影 材及びォレイン酸からなる硬化性糊剤根管充塡材。 1. A curable glue root canal filling material consisting of tetracalcium phosphate powder, magnesium oxide, rosin, X-ray contrast material and oleic acid.
2 . リン酸四カルシウム粉末、 酸化マグネシウム、 ロジン及び X線造 影材からなる粉剤の全重量に対して、 リン酸四カルシウム 3 0〜ち 0重 量％、 酸化マグネシウム 1 0〜3 0重量％、 ロジン 1 0〜3 0重量％、 X線造影材としての次炭酸ビスマス及び Z又は ¾酸バリゥム 1 0〜3 0 重量％の割合で使用することを特徵とする請求の範囲第 1項記載の硬化 性糊剤根管充塡材。 2. Based on the total weight of the powder consisting of tetracalcium phosphate powder, magnesium oxide, rosin and X-ray contrast material, 30 to 10% by weight of tetracalcium phosphate and 10 to 30% by weight of magnesium oxide 2. The method according to claim 1, wherein the rosin is used in an amount of 10 to 30% by weight, bismuth subcarbonate as an X-ray contrast material and Z or barium nitrate is used in an amount of 10 to 30% by weight. A curable glue root canal filling material.
3 . リン酸四カルシウム粉末、 酸化マグネシウム、 ロジン及び X線造 影材からなる粉剤と、 ォレイン酸からなる液剤とを 1 . 5〜4 . 5 ( g/ mil ) の比率で用いることを特徵とする請求の範囲第 1項記載の硬化性 糊剤根管充塡材。
3. It is characterized by using a powder consisting of tetracalcium phosphate powder, magnesium oxide, rosin and X-ray contrast medium and a liquid consisting of oleic acid in a ratio of 1.5 to 4.5 (g / mil). The curable sizing root canal filling material according to claim 1, wherein
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1/16390 | 1989-01-27 | ||
| JP1016390A JPH02200605A (en) | 1989-01-27 | 1989-01-27 | Root canal-filler of curable paste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1990008530A1 true WO1990008530A1 (en) | 1990-08-09 |
Family
ID=11914925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1990/000093 WO1990008530A1 (en) | 1989-01-27 | 1990-01-26 | Root canal filling material comprising hardenable paste |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH02200605A (en) |
| WO (1) | WO1990008530A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499705A (en) * | 1990-08-18 | 1992-03-31 | Mitsubishi Materials Corp | Calcium phosphate cement for dental use |
| JP2554402B2 (en) * | 1991-03-04 | 1996-11-13 | 昭和電工株式会社 | Curable adhesive for root canal filling |
| JPH0644517U (en) * | 1992-11-24 | 1994-06-14 | 株式会社東洋化学研究所 | Dental multi-layered root canal filling material with cone shape |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518430A (en) * | 1982-04-29 | 1985-05-21 | American Dental Association Health Foundation | Dental resptorative cement pastes |
| JPS61246108A (en) * | 1985-04-22 | 1986-11-01 | Kyocera Corp | Curable paste for root canal filling |
| JPS6272363A (en) * | 1985-09-25 | 1987-04-02 | 名神株式会社 | Medical or dental cement composition |
| JPS6283348A (en) * | 1985-10-08 | 1987-04-16 | 株式会社アドバンス | Curable composition for medical use |
| JPS62275007A (en) * | 1986-05-21 | 1987-11-30 | Showa Denko Kk | Ca4p2o9 powder for dental material and its production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2807819B2 (en) * | 1989-01-17 | 1998-10-08 | 住友大阪セメント株式会社 | Hardening glue for root canal filling |
-
1989
- 1989-01-27 JP JP1016390A patent/JPH02200605A/en active Pending
-
1990
- 1990-01-26 WO PCT/JP1990/000093 patent/WO1990008530A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518430A (en) * | 1982-04-29 | 1985-05-21 | American Dental Association Health Foundation | Dental resptorative cement pastes |
| JPS61246108A (en) * | 1985-04-22 | 1986-11-01 | Kyocera Corp | Curable paste for root canal filling |
| JPS6272363A (en) * | 1985-09-25 | 1987-04-02 | 名神株式会社 | Medical or dental cement composition |
| JPS6283348A (en) * | 1985-10-08 | 1987-04-16 | 株式会社アドバンス | Curable composition for medical use |
| JPS62275007A (en) * | 1986-05-21 | 1987-11-30 | Showa Denko Kk | Ca4p2o9 powder for dental material and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02200605A (en) | 1990-08-08 |
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