Diseases of the mouth : for physicians, dentists, medical and dental students / Tr. and edited by John Bethune Stein.

  • Zinsser, Ferdinand, 1865-
Date:
[1912]
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the mouth : for physicians, dentists, medical and dental students / Tr. and edited by John Bethune Stein. Source: Wellcome Collection.

    26/292 (page 8)
    a spirocheta is found—S pirocheta Pertenuis or Pal- lidula (Castallani) or Treponema Pertenue—which in morphology and in its staining properties with Giemsa cannot be distinguished from the treponema pallidum. Three forms of spirochete are very often found in the healthy mouth, viz.: the Spirocheta Buccalis (Cohn, 1875), Spirocheta Dentium (Koch, 1877) (Treponema Microdentium) [and the “Medium Form” of Hoffmann and von Prowazek (Treponema Macrodentiwm).—Tr.] The Spirocheta Buccalis (Figs. 69 and 71) is thick and bulky, with elongated irregular curves, and in movement and appearance resembles the spirocheta refringens. The spiro- cheta buccalis and “medium form” (Fig. 71) are frequently found in the mucus about the tonsils and pharynx, and in great numbers in ulcerative stomatitis. The Treponema Microdentium (Spirocheta Dentium) (Figs. 69 and 71), is found in the mouth, especially at the margins of the gums and in the cavi- ties of carious teeth, and is more likely to be mis- taken for the treponema pallidum than any other microorganism. The spiral form, as in the tre- ponema pallidum, persists in this microorganism, even during rest. [It moves by rotating around its long axis and has no flexion movements. It further re- sembles the treponema pallidum by being pale with little refringence, with its spirals close together, very regular, but the curves are not so high as the pal- lidum. Its average length is about four to ten mi- crons. It has been successfully cultivated. Noguchi has found that the treponema microdentium grown upon his medium produces an odor, whereas the cultures of the treponema pallidum on the same me- dium are odorless. This organism is more easily stained than the treponema pallidum.—Tr.] [The Spirocheta of Vincent, associated with the Bacillus Fusiformis of Vincent (Fig. 72) in Plaut-