File:The Dental cosmos (1907) (14594576980).jpg

Identifier: dentalcosmos4919whit (find matches)
Title: The Dental cosmos
Year: 1907 (1900s)
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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ries, with or without tinyhemorrhages. This seems often to be suc-ceeded or accompanied by a condensationor fibrification of the pulp tissue whichlies between the basal layer of Weil andthe substance of the pulp proper. Ahyperplasia of the connective tissue fibers of the parts occur. Sheaving* ofthe odontoblasts, with or without fattydegeneration, permanent distension ofthe arteries and arterioles, and rapid de-velopment of overgrowth of the fibroidtissue supervene until a well-markedreticular atrophy appears, and in laterstages complete fibrosis of the organ,with disappearance of all cells and nuclei. D and every vestige of nerve bundle andvascular system. PATHO-HISTOLOGY. Longitudinal coronal sections of thepulps show to the best advantage thesechanges. (Figs. 1. 2, and 3.) Thecapillaries and small veins which are dis-tributed to the peripheral parts are en-gorged. Very few are empty and noneare stenosed. Under low powers of themicroscope they present themselves as Fig. 4.
Text Appearing After Image:
Details of early fibrification of pulp tissue. (Magnified 250 diameter-, iD, Dentin. O, Odontoblasts. C, Condensation of pulp tissue. P, Earlyfibrosis. lIOIKWELL-SMITir.—VASCULAB LESIONS OP THE DENTAL PULP. dark long strands running for the mostpart in the vertical axis of the tooth. Thecorpuscles and blood platelets which theycontain are appreciably altered in shapeand size—due, no doubt, partly to post-mortem changes, partly to the histologi- from their walls as a consequence ofrupture. Small arterial cauliflower like hemorrhages are -ecu frequently,at times among the odontoblasts, attimes in the basal layer of Weil, andagain at times in the substance of the Fig. 5.

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