BE469426A - - Google Patents
Info
- Publication number
- BE469426A BE469426A BE469426DA BE469426A BE 469426 A BE469426 A BE 469426A BE 469426D A BE469426D A BE 469426DA BE 469426 A BE469426 A BE 469426A
- Authority
- BE
- Belgium
- Prior art keywords
- instruments
- solution
- milk
- files
- volume
- Prior art date
Links
- 239000002253 acid Substances 0.000 claims description 8
- 210000004080 Milk Anatomy 0.000 claims description 5
- 239000008267 milk Substances 0.000 claims description 5
- 235000013336 milk Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000003801 milling Methods 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000004369 Blood Anatomy 0.000 description 2
- 229940072417 Peroxidase Drugs 0.000 description 2
- 102000003992 Peroxidases Human genes 0.000 description 2
- 108090000437 Peroxidases Proteins 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- 240000001016 Solanum tuberosum Species 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000012015 potatoes Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/06—Sharpening files
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
Description
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" Procédé pour traiter des fraiseuses dentaires, des limes et d'autres instruments analogues émoussés ".
Il était d'usage, jusqu'à présent, de réaiguiser mécaniquement les fraiseuses dentaires, limes ou autres instruments analogues émoussés. A cet effet, on devait envoyer ces instruments à des installations spéciales équipées des machines spéciales nécessaires pour ce trai- tement. Ceci rendait le réaiguisage de tels instruments très coûteux, surtout lorsqu'il s'agissait de les envoyer à l'étranger.
La présente invention a pout but d'éliminer cet inconvénient. Elle a pour objet un procédé pour réaiguiser
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des fraiseuses dentaires, des limes et des instruments analoguesen les traitant à l'aide de solutions conte- nant un acide minéral ou un mélange d'acides minéraux, le dit procédé étant caractérisé en ce que la solution contient, en outre, une substance contenant de la péro- xidase, cette substance étant, par exemple, constituée par du jus obtenu en pressant des pommes de terre, par du lait ou du sang.
Suivant une forme de réalisation particulière- ;.lent efficace de mise en oeuvre de l'invention, la solu- tion de traitement consiste en 1 partie en volume d'un mélange acide consistant en parties égales en poids de HNO3 à 2% et de H2SO4 à 30% et en 2 parties en volume de lait. Les instruments sont maintenus dans cette solu- tion pendant 1 à 15 heures suivant le degré d'émousse- ment et la dimension des bords tranchants des dits instru ments. Grâce à ce traitement, les instruments acquièrent à nouveau leur tranchant, et leurs belles surfaces lisses
Le traitement s'effectue de préférence dans des récipients larges et peu profonds, dans lesquels les gaz engendrés peuvent facilement se dégager de la solution.
On sait déjà que le fer et l'acier se dissolvent dans les acides minéraux, tandisque des ions ferreux sont engendrés dans la solution. Toutefois, il est surprenant que ce phénomène puisse être utilisé, conformément à la présente invention, pour le réaiguisage d'instruments dentaires, grâce à l'addition à la solution acide des substances précitées. Si l'on emploie du lait celui-ci doit être frais, c'est-à-dire que l'essai de Scharinger doit donner une réaction positive.
L'invention a été décrite ci-dessus, à titre d'exemple, dans son application, à des instruments den- taires. Elle peut toutefois être utilisée pour le réai-
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guisage d'instruments similaires, tels que des limes d'horloger et des instruments analogues.
REVENDICATIONS
1. Procédé pour réaiguiser des fraiseuses den- taires, des limes et autres instruments analogues par traitement de ces instruments à l'aide d'une solution contenant un acide minéral ou un mélange d'acides minéraux, caractérisé en ce que la solution précitée contient, en outre, une substance contenant de la peroxidase, cette substance étant constituée, par exemple, par du jus ob- tenu en pressant des pommes de terre, par du lait ou par du sang.
<Desc / Clms Page number 1>
"Method for treating blunt dental milling machines, files and the like".
Until now, it has been customary to mechanically re-sharpen blunt dental milling machines, files or similar instruments. For this purpose, these instruments had to be sent to special installations equipped with the special machines required for this treatment. This made the re-sharpening of such instruments very expensive, especially when it came to sending them abroad.
The present invention aims to eliminate this drawback. Its object is a process for re-sharpening
<Desc / Clms Page number 2>
dental milling machines, files and the like by treating them with solutions containing a mineral acid or a mixture of mineral acids, said process being characterized in that the solution further contains a substance containing peroxidase, this substance being, for example, constituted by juice obtained by pressing potatoes, by milk or blood.
According to a particular slow efficient embodiment of the invention, the treatment solution consists of 1 part by volume of an acid mixture consisting of equal parts by weight of 2% HNO3 and H2SO4 at 30% and in 2 parts by volume of milk. The instruments are kept in this solution for 1 to 15 hours depending on the degree of bluntness and the size of the cutting edges of said instruments. Thanks to this treatment, the instruments once again acquire their sharpness and their beautiful smooth surfaces.
The treatment is preferably carried out in wide and shallow vessels, in which the gases generated can easily escape from the solution.
It is already known that iron and steel dissolve in mineral acids, while ferrous ions are generated in solution. However, it is surprising that this phenomenon can be used, in accordance with the present invention, for the re-sharpening of dental instruments, thanks to the addition to the acid solution of the aforementioned substances. If milk is used, it must be fresh, that is, the Scharinger test must give a positive reaction.
The invention has been described above, by way of example, in its application to dental instruments. It can, however, be used for the
<Desc / Clms Page number 3>
dressing of similar instruments, such as watchmaker's files and the like.
CLAIMS
1. Process for resharpening dental milling machines, files and other similar instruments by treating these instruments with a solution containing a mineral acid or a mixture of mineral acids, characterized in that the aforementioned solution contains in addition, a substance containing peroxidase, this substance being constituted, for example, by juice obtained by squeezing potatoes, by milk or by blood.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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BE469426A true BE469426A (en) |
Family
ID=119881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE469426D BE469426A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE469426A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1827731A2 (en) * | 2004-11-17 | 2007-09-05 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments |
-
0
- BE BE469426D patent/BE469426A/fr unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1827731A2 (en) * | 2004-11-17 | 2007-09-05 | Ultradent Products, Inc. | Methods for manufacturing endodontic instruments |
EP1827731A4 (en) * | 2004-11-17 | 2011-01-19 | Ultradent Products Inc | Methods for manufacturing endodontic instruments |
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