title: [Acid application on dental tartar as preliminary treatment before mechanical scaling].
abstract: The action of the preparation studied, containing 20% hydrochloric acid in an alcohol-chloroform medium: 1) affected both white tartar as well as the submucosal tartar, progressively replacing the phosphorus radicles of tricalcium phosphate by CL ions, transforming the insoluble tricalcium phosphate into soluble calcium chloride; 2) was practically complete in 2 minutes; 3) was more rapid on tartar than on enamel or even cement; 4) did not appear to alter the superficial structure of the tooth in 4 minutes whilst, for the same period of time, the superficial structure of the cement was deeply attacked with 50% preparations of citric acid or phosphoric acid; 5) in our trials, carried out after 4 minutes treatment, caused the tartar to undergo a relatively superficial but adequate chemical action to facilitate its removel, whilst leaving the underlying hard tissue, enamel or cement, unharmed. It would thus appear that such a substance may be used for the preparation and speeding of mechanical descaling.
mesh_terms: D002130:Calcium Phosphates / Q000378:metabolism; D002725:Chloroform / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D003773:Dental Plaque / Q000517:prevention & control*; D003777:Dental Prophylaxis / Q000379:methods*; D012534:Dental Scaling / Q000379:methods*; D004341:Drug Evaluation; D000431:Ethanol; D006801:Humans; D006851:Hydrochloric Acid / Q000008:administration & dosage / Q000627:therapeutic use*; D007455:Iodine / Q000627:therapeutic use; D011193:Potassium Iodide / Q000627:therapeutic use
chemical_list: D002130:Calcium Phosphates; D011193:Potassium Iodide; D000431:Ethanol; D002725:Chloroform; D007455:Iodine; D006851:Hydrochloric Acid
vernacular_title: Contribution à l'étude de l'attaque acide du tartre dentaire, en tant que traitement préliminaire au détartrage mécanique.