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.

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    is markedly elastic and not easily deformed. [In vitro its vitality is not great, and its movements cease in five or six hours at room temperature. It is diffi- cult to stain and is colored red by Giemsa.—TR. | The treponema pallidum moves by rotation around its long axis, comparatively slowly, at times forward, sometimes it stops and may move in the opposite direction. There are also undulating, flex- ion and extension movements. [The movement of the other spirochetx, except the treponema micro- dentium (spirocheta dentium), is for the most part sinuous or snakelike, and there is also a tendency to lengthen their spirals during rest.—TR. ] The treponema pallidum has been found in the chancre and adenopathies accompanying the same; in secondary manifestations (mucous patches, papules roseola, etc.), and in the blood of the general circu- lation. [The treponema pallidum has not been found in the semen; but during the secondary period of the disease this secretion has been proved infectious. Tertiary syphilis is said to be, clinically, not infec- tious; however, the causal agent has been encoun- tered in papular tertiary lesions and gummata. Apes which have been inoculated with fragments of gummata and the blood from persons having tertiary syphilis contracted the disease. It has also been found in the aorta in syphilitic aortitis. In the lesions of heredosyphilis the pallidum is found in greatest numbers, and may also be encountered in any organ. It is found in the placenta, and may be found even within the ovocytes. It is almost always present in the mucus from the mouth, tonsils, pharynx and nose of heredosyphilitics. Syphilis has been produced in the ape by inocu- lating it with the nasal mucus from a syphilitic man. In 1903, Roux and Metchinkoff demonstrated that anthropoid apes are susceptible to syphilis. It is, however, not so easily generalized in animals as in man. A syphilitic keratitis and orchitis can be pro-