FR2512437A1 - Dry powder, which forms cement when mixed with water - contains zinc oxide, zinc sulphate and sugar and, when mixed with water, can be used as temporary fillings in dentistry - Google Patents
Dry powder, which forms cement when mixed with water - contains zinc oxide, zinc sulphate and sugar and, when mixed with water, can be used as temporary fillings in dentistry Download PDFInfo
- Publication number
- FR2512437A1 FR2512437A1 FR8117181A FR8117181A FR2512437A1 FR 2512437 A1 FR2512437 A1 FR 2512437A1 FR 8117181 A FR8117181 A FR 8117181A FR 8117181 A FR8117181 A FR 8117181A FR 2512437 A1 FR2512437 A1 FR 2512437A1
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- FR
- France
- Prior art keywords
- cement
- water
- sugar
- dry powder
- mixed
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B9/00—Magnesium cements or similar cements
- C04B9/06—Cements containing metal compounds other than magnesium compounds, e.g. compounds of zinc or lead
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dental Preparations (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
La présente invention concerne un nouveau ciment composé d'une poudre sèche qui malaxée avec l'eau se met en pâte et durcit rapide ment. Ce ciment une fois pris est insoluble dans l'eau, il ntest pas toxique, il peut donc être utilisé soit en art dentaire comme masse d' obturation provisoire des cavités dentaires, soit dans l'industrie. The present invention relates to a new cement composed of a dry powder which, kneaded with water, becomes a paste and hardens quickly. This cement once set is insoluble in water, it is not toxic, it can therefore be used either in dentistry as a temporary filling mass for dental cavities, or in industry.
Le ciment suivant la présente invention, lorsqu'il est utilisé en art dentaire durcit à coeur en moins de trois minutes dans la cavité dentaire, sans se fendiller. La poudre sèche constituant ce ciment peut se conserver indéfiniment à l'abri de l'air humide. The cement according to the present invention, when used in dentistry hardens to the core in less than three minutes in the dental cavity, without cracking. The dry powder constituting this cement can be stored indefinitely away from humid air.
On sait que des mélanges formés d'oxydes métalliques et de sulfates métalliques, au contact de l'eau donnent des oxysulfates. Cette réaction chimique est brutale et exothermique. It is known that mixtures formed of metal oxides and metal sulfates, in contact with water give oxysulfates. This chemical reaction is brutal and exothermic.
La poudre sèche, base de cette présente invention est un mélange d'oxyde de zinc et de sulfate de zinc qui additionné d'eau forme des oxysulfates de zinc. La réaction de formation de ces oxysulfates est extrêmement rapide et se fait avec un dégagement de chaleur. Les oxysulfates de zinc obtenus sont très durs et insolubles dans l'eau. The dry powder, the basis of this present invention, is a mixture of zinc oxide and zinc sulphate which, when added to water, forms zinc oxysulphates. The formation reaction of these oxysulfates is extremely rapid and takes place with the release of heat. The zinc oxysulfates obtained are very hard and insoluble in water.
On a choisi l'oxyde de zinc et le sulfate de zinc à une molécule d'eau pour composer ce mélange de base. Mais tous les oxydes de zinc et tous les sulfates peuvent être utilisés. We chose zinc oxide and zinc sulfate to a molecule of water to compose this basic mixture. But all zinc oxides and all sulfates can be used.
Le mélange de ces deux corps, en pourcentage peut varier dans les limites suivantes
OZn lourd .............. 10 à 90 SO4ZnOfl2 10 à 90
Pour que la réaction chimique de formation de ces oxysulfates soit utilisable industriellement ou en art dentaire, il faut d'une part rendre suffisamment plastique le mélange oxyde de zinc, sulfate de zinc pour qu'il puisse s'agglomérer en pâte malléable et d'autre part réduire la rapidité de formation dans l'eau des oxysulfates de zinc.The mixture of these two bodies, in percentage can vary within the following limits
Heavy OZn .............. 10 to 90 SO4ZnOfl2 10 to 90
So that the chemical reaction of formation of these oxysulfates is usable industrially or in dentistry, it is necessary on the one hand to make sufficiently plastic the mixture of zinc oxide, zinc sulfate so that it can agglomerate into malleable paste and on the other hand reduce the speed of formation in water of zinc oxysulfates.
Pour obtenir ces deux modifications, il faut ajouter au mélange de l'oxyde de zinc et du sulfate de zinc, un ou plusieurs corps. Ces corps ont été recherchés soit dans les corps organiques : les colles, les farines, les fécules, les amidons, les dextrines, les lactates, le lactose, le glucose, les sucres, les cires, les stéarates, les résines, etc... soit dans les corps minéraux : les kaolins, les argiles, les bentonites, le talc, les silicates, les phosphates, les chlorures, les sulfates, etc... To obtain these two modifications, one or more bodies must be added to the mixture of zinc oxide and zinc sulphate. These bodies have been sought either in organic bodies: glues, flours, starches, starches, dextrins, lactates, lactose, glucose, sugars, waxes, stearates, resins, etc. either in mineral bodies: kaolins, clays, bentonites, talc, silicates, phosphates, chlorides, sulfates, etc ...
Les essais ont été effectués à partir du mélange de base oxyde de zinc, sulfate de zinc, mélangé avec un ou plusieurs corps cités ci-dessus. Chaque essai est malaxé avec de l'eau sur une plaque de verre. The tests were carried out using the basic mixture of zinc oxide and zinc sulphate, mixed with one or more bodies mentioned above. Each test is mixed with water on a glass plate.
Les kaolins, les argiles, les bentonites, etc.. retardent beaucoup trop la formation des oxysulfates. Kaolins, clays, bentonites, etc. delay the formation of oxysulfates far too much.
Les fécules, les lactates, etc... retardent normalement la formation des oxysulfates mais ne sont pas assez liants pour agglomérer le ciment. Starches, lactates, etc ... normally delay the formation of oxysulfates but are not sufficiently binding to agglomerate the cement.
Le glucose, les sucres, les dextrines, les farines, le lactose et certaines résines retardent assez la formation des oxysulfates pour laisser le temps au manipulateur de faire le malaxage du ciment avec l'eau et ces corps sont assez collants pour agglomérer le ciment. Glucose, sugars, dextrins, flours, lactose and certain resins delay the formation of oxysulfates enough to give the manipulator time to mix the cement with water and these bodies are sticky enough to agglomerate the cement.
Le mélange de ces corps, en pourcentage peut varier dans les limites suivantes
OZn lourd .......... 10 à 90
S04ZnOH2 ........... 10 à 90
Corps ajoutés ...... O à 90
On donne ci-après, à titre d'exemples non limitatifs, diverses compositions, exprimées en pour cent en poids, de ciments conformes à l'invention
N 1 N 2 N 3 N 4 N 5 N 6
Oxyde de zinc lourd : OZn 58,82 62,50 55,56 55256 4546 45,46
Sulfate de zinc :S04ZnOH2 23,53 25,00 22,22 22,22 18,18 18,18 Sucre glace ............. 17,65 - - - - -
Sucre XYLITOL ........... - 12,50 - - -
Dextrine - - 22,22 - -
Lactate de calcium - - - 16,66 -
Lactose - - - 5,56 - 9,10
Farine .............- - - - 36,36 27,26
Dans ces formules on peut faire varier les rapports de poids entre l'oxyde de zinc et le sulfate de zinc à condition de modifier en proportion les poids du ou des corps ajoutés.The mixture of these bodies, in percentage can vary within the following limits
Heavy OZn .......... 10 to 90
S04ZnOH2 ........... 10 to 90
Bodies added ...... O to 90
Various compositions are given below, by way of nonlimiting examples, expressed in percent by weight, of cements according to the invention.
N 1 N 2 N 3 N 4 N 5 N 6
Heavy zinc oxide: OZn 58.82 62.50 55.56 55,256 4,546 45.46
Zinc sulphate: S04ZnOH2 23.53 25.00 22.22 22.22 18.18 18.18 Icing sugar ............. 17.65 - - - - -
XYLITOL sugar ........... - 12.50 - - -
Dextrin - - 22.22 - -
Calcium lactate - - - 16.66 -
Lactose - - - 5.56 - 9.10
Flour .............- - - - 36.36 27.26
In these formulas, the weight ratios between the zinc oxide and the zinc sulphate can be varied provided that the weights of the added body or bodies are modified in proportion.
L'exemple n 2 donne un excellent ciment pour obturation provisoire des cavités dentaires. Il prend et durcit à coeur en moins de trois minutes. Si dans les exemples cités on désire retarder davantage la prise du ciment, on augmente le pourcentage du ou des corps ajoutés. Example 2 gives excellent cement for temporary filling of the dental cavities. It takes and hardens to the core in less than three minutes. If in the examples cited it is desired to further delay the setting of the cement, the percentage of the body or bodies added is increased.
Si au contraire on désire que le ciment prenne plus rapidement on dimi nue la quantité du ou des corps ajoutés.If, on the other hand, it is desired that the cement set more quickly, the quantity of the body or bodies added is reduced.
Ces ciments peuvent être colorés soit par des colorants organiques soit par des colorants minéraux suivant leur utilisation. These cements can be colored either with organic dyes or with mineral dyes depending on their use.
Ce nouveau ciment, objet de la présente invention peut être utilisé en art dentaire, mais également dans tous les secteurs de 1' industrie. Il peut notamment servir à faire des scellements de toutes sortes. Il peut être utilisé comme enduit. On peut faire par exemple avec ce ciment des plaques, des carreaux, des blocs imitant la pierre pour des constructions etc... Les scellements peuvent s'effectuer en milieu très humide, ou dans liteau. This new cement, object of the present invention can be used in dentistry, but also in all sectors of the industry. It can especially be used to make seals of all kinds. It can be used as a plaster. One can make for example with this cement plates, tiles, blocks imitating the stone for constructions etc ... The seals can be carried out in very humid environment, or in batten.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8117181A FR2512437A1 (en) | 1981-09-10 | 1981-09-10 | Dry powder, which forms cement when mixed with water - contains zinc oxide, zinc sulphate and sugar and, when mixed with water, can be used as temporary fillings in dentistry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8117181A FR2512437A1 (en) | 1981-09-10 | 1981-09-10 | Dry powder, which forms cement when mixed with water - contains zinc oxide, zinc sulphate and sugar and, when mixed with water, can be used as temporary fillings in dentistry |
Publications (1)
Publication Number | Publication Date |
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FR2512437A1 true FR2512437A1 (en) | 1983-03-11 |
Family
ID=9262049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8117181A Withdrawn FR2512437A1 (en) | 1981-09-10 | 1981-09-10 | Dry powder, which forms cement when mixed with water - contains zinc oxide, zinc sulphate and sugar and, when mixed with water, can be used as temporary fillings in dentistry |
Country Status (1)
Country | Link |
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FR (1) | FR2512437A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2767055A1 (en) * | 1997-08-07 | 1999-02-12 | Laurent Haddad | DENTAL CEMENT COMPOSITIONS AND FIRST EMERGENCY TOOTH KIT CONTAINING SAME |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE12999C (en) * | Dr. R. MARTIN in Sonneberg (Thür.) | Innovations in the process of forming and covering toys | ||
GB317502A (en) * | 1928-04-17 | 1929-08-19 | Metallon Dev Company Ltd | Improvements in and relating to compositions of matter adapted for use as paints, plasters, cements, putties, fillers and the like |
GB403230A (en) * | 1932-02-06 | 1933-12-21 | Helmut Fritz | Method for manufacturing a plastic material capable of being hardened |
DE820791C (en) * | 1949-05-31 | 1951-11-12 | Eugen Dr Michel | Process for the manufacture of dental fasteners |
DE1076895B (en) * | 1958-01-09 | 1960-03-03 | Hubert Kolano Dipl Ing | Process for the production of provisional tooth locking materials |
GB2264583A (en) * | 1992-02-28 | 1993-09-01 | Nec Corp | Data display radio pager |
-
1981
- 1981-09-10 FR FR8117181A patent/FR2512437A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE12999C (en) * | Dr. R. MARTIN in Sonneberg (Thür.) | Innovations in the process of forming and covering toys | ||
GB317502A (en) * | 1928-04-17 | 1929-08-19 | Metallon Dev Company Ltd | Improvements in and relating to compositions of matter adapted for use as paints, plasters, cements, putties, fillers and the like |
GB403230A (en) * | 1932-02-06 | 1933-12-21 | Helmut Fritz | Method for manufacturing a plastic material capable of being hardened |
DE820791C (en) * | 1949-05-31 | 1951-11-12 | Eugen Dr Michel | Process for the manufacture of dental fasteners |
DE1076895B (en) * | 1958-01-09 | 1960-03-03 | Hubert Kolano Dipl Ing | Process for the production of provisional tooth locking materials |
GB2264583A (en) * | 1992-02-28 | 1993-09-01 | Nec Corp | Data display radio pager |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2767055A1 (en) * | 1997-08-07 | 1999-02-12 | Laurent Haddad | DENTAL CEMENT COMPOSITIONS AND FIRST EMERGENCY TOOTH KIT CONTAINING SAME |
WO1999007329A1 (en) * | 1997-08-07 | 1999-02-18 | Laurent Haddad | Dental cement compositions and dental first aid kit comprising same |
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