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
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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![have the enamel very beautiful and transparent. We here find nature, as she does in many other particulars common to humanity, making up for defects in one part of her work, by bestowing greater perfection upon an- other. [The editor's observations upon this subject do not exactly accord with the opinion of Mr. Fox. He has seldom known more than one or two of the same family to have their teeth thus affected, and he has found that atrophied teeth were just as liable to decay as any other, but the parts marked by the disease are the portions least liable to be attacked by caries.] Sometimes in the formation of the teeth two pulps unite, and upon their surfaces, appear as two distinct teeth, but upon attempting to remove one, it is discovered to be united to the next. In Plate IX. are figures of several teeth of this kind, which must be regarded as lusus naturae.* Very often the fangs of the teeth become crooked, from some obstruction to their growth; and teeth having two or three fangs, are now and then met with, so much bent at their points as to occasion them to be very firmly placed in the jaw. When these circumstances occur, the ex- traction of the teeth is unavoidably an operation of the utmost difficulty. [ARTERIES OF THE TEETH.] The arteries which supply the teeth with blood, are called the dental; they are branches of the internal max- illary artery, which arises from the external carotid, at that part where it is covered by the parotid gland, and lies behind the middle of the upright plate of the lower ♦Plate IX. Fig. 8, 9, 10.](https://iiif.wellcomecollection.org/image/b21120559_0059.jp2/full/800%2C/0/default.jpg)
