Dental microscopy / by A. Hopewell Smith.

  • Hopewell-Smith, Arthur, 1865-1931.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Dental microscopy / by A. Hopewell Smith. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    XVll DESCRIPTION OF FRONTISPIECE Fig. I.—Longitudinal section of human tooth affected by caries ; prepared by the Author's process, with pulp in situ ; stained carmine, and micro-organisms stained by Gram's method ; i-inch objective and C ocular ; shows {a) normal dentine ; {b) dentine affected by caries ; (<:) cavity of decay ; [d) liquefaction foci ; {e) adventitious dentine ; (/) carious adventitious dentine ; {g) fibrillar adventitious dentine ; (h) areolar adventitious dentine ; {i) pulp in situ., with masses of micrococci in several places ; (/) hyperasmic blood-vessel; {k) layer of odontoblasts surrounded by micrococci ; (/) basal layer of Weil ; (w) margin of limit of original pulp chamber. Fig. 2.—Longitudinal section of carious dentine ; decalcified and cut on a microtome ; stained by Gram's method ; ^5-inch ob- jective and C ocular ; shows ia) micrococci in tubules ; {b) lique- faction foci; (f) matrix of dentine. ^^S- 3-—Transverse section of carious dentine ; ' pipe-stem ' appearance ; decalcified and cut on a microtome ; stained picro- carmine ; ,3^-inch objective and C ocular ; shows {a) carious tubules ; {b) empty normal tubules ; (^r) matrix of dentine. Fig. 4.—Some varieties of the micro-organisms of the mouth ; film preparation ; stained carbol-fuchsine ; ^-inch objective and C ocular; shows (a) stratified squamous epithelial cells detached from the mucous membrane of the mouth, with their nuclei ; {b) masses of micrococci ranged about the cells, which in many cases become destroyed by them ; {c) Streptococcus lp}igus\\\.% individual members ought to have been drawn the same size and shape] ; {d) Streptococcus brcvis ; {c) Diplococci; (/) Spirochcefe dentium ; {g) Bacillus buccalis maxiiitus ; (Jt) mass of bacteria containing round, thread, and rod forms. Fig. 5.—Various types of micro-organisms found beneath a mass of salivary calculus in a well-cared-for mouth ; film prepara- tion ; stained by Gram's method ; j^u-inch objective and D ocular ; shows {a) mass of bacteria containing cocci and thread forms • (b) Spirillum spuiigenum ; (c) large curved rods, which are par- ticularly numerous in the mouths of some aged people ; {d) Spiro- chictc dentium ; {e) Bacillus buccalis ma.ritnus ; (/) Sarcina lutea.