The diseases of the human teeth : their natural history and structure : with the mode of applying artificial teeth, etc., etc. / by Joseph Fox and Chapin A. Harris ; with two hundred and fifty illustrations.

  • Joseph Fox
Date:
1855
Catalogue details

Licence: Public Domain Mark

Credit: The diseases of the human teeth : their natural history and structure : with the mode of applying artificial teeth, etc., etc. / by Joseph Fox and Chapin A. Harris ; with two hundred and fifty illustrations. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    of grinders, and only have an intermediate resemblance between those teeth and the cuspidati, Mr. Hunter con- sidered them as a particular class. These teeth are very much like each other, and when viewed as they are situated in the mouth, are not unlike the cuspidati. They are eight in number; those belong- ing to the upper jaw have the body divided into two points, one external, the other internal. Their fangs ap- pear as if compressed at the sides, and resemble two fangs united, with a depression running between them: commonly the first bicuspis has two small fangs, the sec- ond has seldom more than one; but in this they are sub- ject to variety. [The editor has several superior bicuspides in his ana- tomical cabinet, each of which has three fangs.] The bicuspides of the under jaw are smaller than those of the upper; the points upon their surfaces are not so distinct, and they have only one fang. The enamel is distributed nearly equally around the crown, and they stand in the jaw almost perpendicularly, but have a slight inclination inwards. The molares, or grinders, are placed behind the bicus- pides; there are three on each side of the jaw, making twelve in the whole. The first and second molares are so much alike in every particular, that the description of one will convey a perfect idea of the other. The third grinder has several peculiarities, and therefore must be described separately. The molares are the largest teeth; they have a broad base, furnished with several points, which fits them for their office in grinding of food, and they have several fangs. The molares of the under jaw have an inclination in- wards, while those of the upper jaw are placed nearly perpendicularly with respect to the jaw.
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    No text description is available for this image
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