File:The Dental cosmos (1890) (14779324555).jpg

Identifier: dentalcosmos3218whit (find matches)
Title: The Dental cosmos
Year: 1890 (1890s)
Authors: White, J. D McQuillen, J. H. (John Hugh), 1826-1879 Ziegler, George Jacob, 1821-1895 White, James William, 1826-1891 Kirk, Edward C. (Edward Cameron), 1856-1933 Anthony, L. Pierce (Lovick Pierce), b. 1877
Subjects: Dentistry Dentistry
Publisher: Philadelphia, S. S. White Dental Manufacturing Co
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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of bacteria the others are surrounded by a more or less extensive 7. Sulphate of Copper. artiUiPhaT,°f TPPer POWerful Penetrative and preservativeso r P Pu S°°n beC°me Sdff Ught £reen in color> and have a Se £ ^ Jransferred t0 they mostly remained mos i g,4 ^ NeXt t0 bichl°ride °f merCUr^ « is the SS^t^^which we have; unf~^* b^ 8. Borax. Although borax appears to permeate the substance of the pulp veryrap.dly, lts antiseptic action is correspondingly weak. The majority ofhe pulps treated with ,t showed evident signs of putrefaction in a veryshort t,me, some of them completely liquefying, giving off at the sametime an exceedingly d.sagreeable odor. Occasionally, under appli- 600 THE DENTAL COSMOS. cation of large doses, they were tolerably well preserved, but on thewhole the results were such that I should never think of using it inthe treatment of diseased teeth. (See Fig. 5, d.) 9. Boric Acid. The results obtained by boric acid were very similar to those ofborax. Fig. 7.
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Fig. 7.—Agar-Agar Plate with Four Pulps, a, treated with oil of cinnamon, and £,vrith•carbolic acid, have remained comparatively free from bacteritic growths ; d, treated with methyl-violet, and c, with mytheleneblue, are completely overgrown. 10. Ethereal Oils.The oils of peppermint, wintergreen, and eucalyptus gave at onceresults so little encouraging (Fig. 6) that but few experiments weremade. I shall, however, make further tests with them. Oil of clovesappeared somewhat better. The best results, however, were obtainedwith oil of cinnamon. This oil permeates and stiffens the tissue withtolerable rapidity, tinging it various shades of yellow to brown. Pulpstreated with it, placed upon the nutritive plates, proved to be sterile ina large measure (Figs. 6, 7, and 8). I am at present in doubt whetherto place the oil of cinnamon on a level with trichlorphenol and carbolicacid ; further experiments will be necessary to settle this question. EXPERIMENTS ON THE COMPARATIVE VALUE OK AN

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