JPH0585521B2 - - Google Patents
Info
- Publication number
- JPH0585521B2 JPH0585521B2 JP59151592A JP15159284A JPH0585521B2 JP H0585521 B2 JPH0585521 B2 JP H0585521B2 JP 59151592 A JP59151592 A JP 59151592A JP 15159284 A JP15159284 A JP 15159284A JP H0585521 B2 JPH0585521 B2 JP H0585521B2
- Authority
- JP
- Japan
- Prior art keywords
- root canal
- canal filling
- root
- main component
- ray contrast
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 27
- 210000004262 dental pulp cavity Anatomy 0.000 claims description 15
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 8
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 claims description 8
- OKJPEAGHQZHRQV-UHFFFAOYSA-N iodoform Chemical compound IC(I)I OKJPEAGHQZHRQV-UHFFFAOYSA-N 0.000 claims description 8
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 7
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 7
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 claims description 4
- 239000005770 Eugenol Substances 0.000 claims description 4
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002872 contrast media Substances 0.000 claims description 4
- 229960002217 eugenol Drugs 0.000 claims description 4
- 229960001867 guaiacol Drugs 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 229910000014 Bismuth subcarbonate Inorganic materials 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- MGLUJXPJRXTKJM-UHFFFAOYSA-L bismuth subcarbonate Chemical compound O=[Bi]OC(=O)O[Bi]=O MGLUJXPJRXTKJM-UHFFFAOYSA-L 0.000 claims 1
- 229940036358 bismuth subcarbonate Drugs 0.000 claims 1
- 239000002631 root canal filling material Substances 0.000 description 10
- 210000001519 tissue Anatomy 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000035876 healing Effects 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000003796 zinc oxide eugenol cement Substances 0.000 description 2
- 208000006386 Bone Resorption Diseases 0.000 description 1
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 210000004763 bicuspid Anatomy 0.000 description 1
- 230000024279 bone resorption Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010634 clove oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003074 dental pulp Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Landscapes
- Dental Preparations (AREA)
Description
［産業上の利用分野］
本発明は、歯科治療に用いる根管充填用硬化型
糊材に関するものである。
［従来の技術］
歯科治療における根管充填用操作は抜髄、ある
いは感染根管治療後、空虚となつた根管系に対
し、根管充填材を適用することによつて根端部創
傷の保護、治癒を図ることを目的としている。し
たがつて歯牙の補綴処置に至る前段階としてのか
かる処置は、一般歯科臨床上もつとも頻度の高い
処置法であるといえる。
ところで、このような処置には従来から種々の
根管充填材が使用されてきたが、これらは主とし
て治療的な材品である糊材系のもの（例えば水酸
化カルシウム系糊材）、また物理的な封鎖を主体
とした固形状のもの（例えばガツタパーチヤーポ
イント）に分けることができる。
しかしながら固形状の根管充填材においても根
端部の確実な封鎖を得るためには、他にシーラー
と呼ばれる一種の封鎖材を用いた併用根管充填を
行う必要がある。さらにシーラーの中でも練和
後、ある一定時間経つて硬化するタイプのものは
硬化固形状（セメントタイプ）の根管充填材と呼
ぶものがある。
［発明が解決しようとする問題点］
このうち、従来から知られているセメントタイ
プの根管充填材としては酸化亜鉛を主成分とし、
これにユージノールを混和して用いる酸化亜鉛ユ
ージノールセメントが多く用いられてきた。とこ
ろが酸化亜鉛ユージノールセメントは根端部の周
囲組織に対し、ある程度の組織刺激性を有すると
され、いわゆる生物学的根管充填材としては、満
足できるものとは言えなかった。
［問題点を解決するための手段］
叙上のような事情に鑑みて、近年、歯牙や骨な
ど生体硬組織の無機構成成分として知られている
ハイドロキシアパタイトはそのすぐれた生体親和
性から、歯科インプラント、人工骨などに応用さ
れているが、本発明者らはこのようなハイドロキ
シアパタイトの生体、特に歯髄及び根端部周囲組
織に及ぼす影響について種々研究を重ねた結果、
ハイドロキシアパタイトを主成分とした根管充填
材が臨床上適用価値の高いものであることを見出
し、かつ水酸化カルシウムを有効成分とし、これ
らにＸ線造影材を配合して成る第１材と、グアヤ
コールあるいはユージノールを主成分とする第２
材から成る２材型根管充填材を提供せんとするも
のである。
［発明の構成］
本発明の根管充填用硬化型糊材における第１材
の構成としては、第１材全重量に対し、ハイドロ
キシアパタイトを40〜60重量％配合し、水酸化カ
ルシウムを同じく第１材全重量に対して15〜20重
量配合したもので、この水酸化カルシウムの代り
に酸化マグネシウムを用いることも可能である。
一方、第２材を構成するグアヤコールは35〜60
重量％配合する。なお、このグアヤコールの代り
にユージノールあるいは丁字油などの精油を用い
てもよい。また、Ｘ線造影材としては、ヨードホ
ルム、硫酸バリウムなどが適量配合される。
このような本発明に係る根管充填用硬化型糊材
は、上記の如き第１材及び第２材を混練して用い
られるが、第１材、第２材の混合比率は所要の仕
上がり状態を定めて任意に選ぶことができるもの
の、試用結果によれば、３：１（重量比）の割合
での練和状態が最適であつた。なお、練和後、本
材は口腔内で約20分で硬化が完了するものの、第
２材の処方を変更することによつて適宜硬化時間
を調製することができる。
次に、本発明の糊材を用い根管内壁に対する密
着性を試験したところ下記の如くであつた。
（評価）
本発明による糊材を成犬15頭の下顎前臼歯150
根管に対して適用し、３ケ月後に屠殺し、病理組
織学的に検索したところ第１表のような結果を得
た。
この第１表から明らかな如く、これらの組織に
よる糊材はいずれも根端部の生物学的治癒を助長
し、根管充填材としてすぐれた効果を有するもの
であつた。
次に本発明を実施例により具体的に説明する。
実施例 1.
第１材処方（粉末状）
ハイドロキシアパタイト 40％
水酸化カルシウム 17.5％
酸化亜鉛 20％
酸化マグネシウム 2.5％
ヨードホルム 20％
[Industrial Field of Application] The present invention relates to a hardening glue material for root canal filling used in dental treatment. [Prior art] The root canal filling operation in dental treatment is to protect the root end wound by applying a root canal filling material to the empty root canal system after pulp extraction or infected root canal treatment. , aimed at healing. Therefore, it can be said that such treatment as a pre-stage to dental prosthetic treatment is one of the most frequently used treatment methods in general dentistry clinical practice. By the way, various root canal filling materials have been used for this kind of treatment, but these are mainly therapeutic glue-based materials (e.g., calcium hydroxide-based glue), and physical adhesives. It can be divided into solid types (e.g. Gatsuta percha point) that mainly block the air. However, even with a solid root canal filling material, in order to securely seal the root end, it is necessary to perform root canal filling in combination with a type of sealing material called a sealer. Furthermore, among sealers, there is a type that hardens after a certain period of time after being kneaded and is called a hardened solid (cement type) root canal filling material. [Problems to be solved by the invention] Among these, conventionally known cement-type root canal filling materials contain zinc oxide as the main component.
Zinc oxide eugenol cement, in which eugenol is mixed with this, has been widely used. However, zinc oxide eugenol cement is said to have a certain degree of tissue irritation to the tissues surrounding the root tip, and cannot be said to be satisfactory as a so-called biological root canal filling material. [Means for solving the problem] In view of the above-mentioned circumstances, hydroxyapatite, which is known as an inorganic component of biological hard tissues such as teeth and bones, has recently been used in dentistry due to its excellent biocompatibility. Although it has been applied to implants, artificial bones, etc., the present inventors have conducted various studies on the effects of hydroxyapatite on living organisms, particularly on the dental pulp and tissues surrounding the root end.
It has been discovered that a root canal filling material containing hydroxyapatite as a main component has high clinical application value, and a first material comprising calcium hydroxide as an active ingredient and an X-ray contrast material added thereto; A second product whose main ingredient is guaiacol or eugenol
The present invention aims to provide a two-material type root canal filling material consisting of two materials. [Structure of the Invention] The structure of the first material in the hardening glue material for root canal filling of the present invention is that hydroxyapatite is blended in an amount of 40 to 60% by weight based on the total weight of the first material, and calcium hydroxide is blended in the same amount as the first material. The amount is 15 to 20% by weight based on the total weight of one material, and it is also possible to use magnesium oxide instead of calcium hydroxide. On the other hand, guaiacol, which makes up the second material, has a molecular weight of 35 to 60%.
Blend in weight%. Note that essential oils such as eugenol or clove oil may be used instead of guaiacol. Further, as an X-ray contrast material, an appropriate amount of iodoform, barium sulfate, etc. is mixed. The hardening glue material for root canal filling according to the present invention is used by kneading the first material and the second material as described above, and the mixing ratio of the first material and the second material is determined depending on the desired finished state. However, according to trial results, a kneading state of 3:1 (weight ratio) was optimal. Although the main material completely hardens in the oral cavity in about 20 minutes after kneading, the hardening time can be adjusted as appropriate by changing the formulation of the second material. Next, adhesion to the inner wall of a root canal was tested using the adhesive of the present invention, and the results were as follows. (Evaluation) The glue material according to the present invention was applied to 150 mandibular premolars of 15 adult dogs.
It was applied to root canals, sacrificed 3 months later, and histopathologically examined, and the results shown in Table 1 were obtained. As is clear from Table 1, all of the glue materials made from these tissues promoted biological healing of the root tip and had excellent effects as root canal filling materials. Next, the present invention will be specifically explained using examples. Example 1. First material formulation (powder) Hydroxyapatite 40% Calcium hydroxide 17.5% Zinc oxide 20% Magnesium oxide 2.5% Iodoform 20%
以上のように本発明に係る根管充填材は主成分
がハイドロキシアパタイトであることから、すぐ
れた生体組織との親和性を有し、それ故、組織刺
激性が少なく、しかも根管に充填された場合、根
端部周囲組織の治癒を助長し、最終的に根端部の
閉鎖機転を期待できる。また、歯槽骨の吸収を伴
うような症例では根端孔外に溢れ出した充填材は
当該部分の治癒とともに新生骨に包含され、骨欠
損部の補綴材としての役割をも果すなどの優れた
効果を発揮する。
さらに本発明充填材は粉末体から成る第１材
と、液体である第２材とから成り、使用時にこれ
ら第１材、第２材を３：１の割合で練和して用い
るが、練和後、口腔内にて約20分で硬化が完了す
ることからガツタパーチヤーポイントとの併用根
管充填に用いるシーラーとしても極めて有用であ
る。またヨードホルム、硫酸バリウムなどを含有
せしめてあることによつて適度のＸ線造影性を有
し、根管充填の状態を容易に確認することもでき
るなど、すぐれた根管充填効果をもたらすことが
できる。
As described above, the root canal filling material according to the present invention has hydroxyapatite as its main component, so it has excellent compatibility with living tissue, has little tissue irritation, and is easy to fill into root canals. In this case, it can be expected that the healing of the tissues surrounding the root end will be promoted and that the root end will eventually be able to close. In addition, in cases involving alveolar bone resorption, the filling material that overflows outside the root foramen is included in new bone as the area heals, and it has excellent properties such as serving as a prosthetic material for bone defects. be effective. Furthermore, the filler of the present invention is composed of a first material made of powder and a second material made of liquid. It is extremely useful as a sealer for root canal filling in combination with Gatsuta Percha Points, as it completely hardens in the oral cavity in about 20 minutes after cleaning. In addition, because it contains iodoform, barium sulfate, etc., it has appropriate X-ray contrast properties, and the state of root canal filling can be easily confirmed, resulting in excellent root canal filling effects. can.
Claims (1)
造影材及び水酸化カルシウム又は酸化マグネシウ
ムを配合して成る粉状の第１材と、グアヤコール
又はユージノールを主成分とする液状の第２材か
ら成る２材型の根管充填用硬化型糊材。 ２ 上記Ｘ線造影材としてヨードホルム、硫酸バ
リウム、次炭酸ビスマス、銀粉のうち少なくとも
一つを含むことを特徴とする特許請求の範囲第１
項記載の根管充填用硬化型糊材。[Scope of Claims] 1. A powdery first material containing hydroxyapatite as a main component and containing an X-ray contrast material and calcium hydroxide or magnesium oxide, and a liquid second material containing guaiacol or eugenol as a main component. A two-part hardening adhesive for root canal filling. 2. Claim 1, characterized in that the X-ray contrast material contains at least one of iodoform, barium sulfate, bismuth subcarbonate, and silver powder.
Curing glue for root canal filling as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59151592A JPS6130507A (en) | 1984-07-20 | 1984-07-20 | Curable paste agent for filling root canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59151592A JPS6130507A (en) | 1984-07-20 | 1984-07-20 | Curable paste agent for filling root canal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6130507A JPS6130507A (en) | 1986-02-12 |
| JPH0585521B2 true JPH0585521B2 (en) | 1993-12-07 |
Family
ID=15521885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59151592A Granted JPS6130507A (en) | 1984-07-20 | 1984-07-20 | Curable paste agent for filling root canal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6130507A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS635008A (en) * | 1986-06-25 | 1988-01-11 | Hiroshi Inoue | Dental pulp capping agent |
| JPH01294609A (en) * | 1988-02-09 | 1989-11-28 | Toyo Kagaku Kenkyusho:Kk | Dental sealer for root canal filling |
| CA2003882C (en) * | 1988-12-19 | 1997-01-07 | Edwin Rogers Smith | Heat shrinkable very low density polyethylene terpolymer film |
| JPH0429908A (en) * | 1990-05-25 | 1992-01-31 | Showa Denko Kk | Root canal filling paste |
| EP1027876A4 (en) * | 1998-08-30 | 2004-04-28 | Kazunori Kusano | Dental glue, glue injector, and device for detecting injected glue |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5626808A (en) * | 1979-08-13 | 1981-03-16 | Mitsubishi Mining & Cement Co Ltd | Dental cement composition |
| JPS59172407A (en) * | 1983-03-22 | 1984-09-29 | Mitsubishi Mining & Cement Co Ltd | Point for root canal filling |
-
1984
- 1984-07-20 JP JP59151592A patent/JPS6130507A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5626808A (en) * | 1979-08-13 | 1981-03-16 | Mitsubishi Mining & Cement Co Ltd | Dental cement composition |
| JPS59172407A (en) * | 1983-03-22 | 1984-09-29 | Mitsubishi Mining & Cement Co Ltd | Point for root canal filling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6130507A (en) | 1986-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |