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 PDF

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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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cement
water
sugar
dry powder
mixed
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FR8117181A
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French (fr)
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B9/00Magnesium cements or similar cements
    • C04B9/06Cements 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

The dry powder contains zinc oxide, zinc sulphate, and one or more addns. (I) such as sugar, sugar-xylitol, icing sugar, dextrin, flour, lactose and/or calcium lactate. Addns. (I) retard the formation of oxysulphates in the water, and also form a binder so the cement can be agglomerated by the pressure of human fingers. The pref. dry powder contains by wt. 10-90% ZnO; 10-90% ZnSO4, H2O; and 0-90% addns. (I). The cement is pref. used for the provisional filling of tooth cavities in dentistry, and sets in less than 3 minutes. The cement may also be used in all types of industrial work, esp. in buildings for making seals, coatings, tiles, imitiation stone etc. The dry powder can be stored indefinitely in the absence of moist air; but when mixed with water it forms oxysulphates by a very rapid and exothermic reaction.

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)

REVENDICATIONS 1 - Ciment, caractérisé en ce qu'il est obtenu à partir d'une poudre sèche qui doit pour faire prise être malaxée avec l'eau. Cette poudre sèche est composée d'oxyde de zinc, de sulfate de zinc et d'un ou plusieurs corps ajoutés tels que du sucre, du sucre Xylitol, du sucre glace, de la dextrine, de la farine, du lactose, du lactate de calcium.1 - Cement, characterized in that it is obtained from a dry powder which, in order to set, must be kneaded with water. This dry powder is composed of zinc oxide, zinc sulphate and one or more added bodies such as sugar, Xylitol sugar, icing sugar, dextrin, flour, lactose, lactate. calcium. Ce, ou ces corps ajoutés ralentissent d'une part la formation des oxysulfates dans l'eau et d'autre part donnent suffisamment de liant au ciment pour s'agglomérer sous la pression des doigts.This, or these added bodies slow down on the one hand the formation of oxysulfates in water and on the other hand give enough binder to the cement to agglomerate under the pressure of the fingers. 2 - Ciment, selon la revendication 1, caractérisé en ce que les limites possibles des corps, exprimés en pourcentage dans le mélange, sont les suivantes :2 - Cement according to claim 1, characterized in that the possible limits of the bodies, expressed as a percentage in the mixture, are the following: OZn ........... 90 à 10 OZn ........... 90 to 10 S04Zn CR2 ..... 90 à 10 S04Zn CR2 ..... 90 to 10 Corps ajoutés 90 à O 3 - Ciment, selon les revendications 1 et 2, caractérisé en ce qu'il peut servir en art dentaire pour. obturer à titre provisoire les cavités dentaires. Il prend et durcit à coeur en moins de trois minutes. Bodies added 90 to O 3 - Cement, according to claims 1 and 2, characterized in that it can be used in dentistry for. provisionally fill the dental cavities. It takes and hardens to the core in less than three minutes. 4 - Ciment, selon les revendications t et 2, caractérisé en ce qu'il peut servir dans tous les secteurs de l'industrie, notamment dans le bâtiment pour faire des scellements, des enduits, des carreaux, des blocs imitant la pierre etc... 4 - Cement, according to claims t and 2, characterized in that it can be used in all sectors of industry, especially in the building to make seals, coatings, tiles, blocks imitating stone etc. ..
FR8117181A 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 Withdrawn FR2512437A1 (en)

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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

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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

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Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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