Items related to Treatise on Dental Caries; Experimental and Therapeutic...
Este libro histórico puede tener numerosos errores tipográficos y texto faltante. Los compradores pueden descargar una copia gratuita escaneada del libro original (sin errores tipográficos) desde la editorial. No indexado. No se muestra. 1878 edition. Extracto: ...slight change, consisting of a dissociation of the elements of the enamel, reaching hardly to the superficial layer of the ivory. A fragment of bone, added to the foregoing preparations, has undergone complete softening, almost as much so as in the experiments with sugar. Conclusions from the Experiments with Lactic Acid.--Lactic acid in the proportion of one in one thousand exerts upon the teeth only a moderate action, apprecia Fio. 14. Artificial Caries from Lactic Acid. A. Caries developed at the exposed end of a superior adult incisor. B. General alteration of an incisor plunged without protection in the solution: a. enamel crushed and friable; 6. root softened to considerable depth and brown. ble by the passage of the solution, at first feebly acid, to the neutral reaction; but at a higher degree of concentration, the one in one hundred, it acts energetically and uniformly upon the dental tissues, producing changes which strongly resemble those from the sugars, and have all the characteristics of veritable caries. Lactic acid is, as is known, an energetic solvent of the phosphates and carbonates, and its relative fixity indicates sufficiently that it can act in such cases by itself and without undergoing any modification or fermentation. This agent should be considered as one of the most frequent alterants which occur in the mouth; besides that it forms, as we see, spontaneously, it is carried there in other ways, for example, in matters vomited or eructed, in sea-sickness, the diseases, etc., and it is known that the gastric juice contains in a free state a very notable proportion of this acid. (c.) Butyric Acid. Exp. I.--Solution of one part in one thousand: butyric acid one gram, water one...
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- PublisherRareBooksClub.com
- Publication date2012
- ISBN 10 0217649572
- ISBN 13 9780217649575
- BindingPaperback
- Number of pages76
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