Guide to sound teeth, or a popular treatise on the teeth, illustrating the whole judicious management of these organs from infancy to old age : in which the author will attempt to show that the teeth of all persons which are constitutionally well formed, and who enjoy good health may, by proper management and care, be preserved to the end of life / by Shearjashub Spooner.

  • Spooner, Shearjashub, 1809-1859.
Date:
1836
Catalogue details

Licence: Public Domain Mark

Credit: Guide to sound teeth, or a popular treatise on the teeth, illustrating the whole judicious management of these organs from infancy to old age : in which the author will attempt to show that the teeth of all persons which are constitutionally well formed, and who enjoy good health may, by proper management and care, be preserved to the end of life / by Shearjashub Spooner. 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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    be the 9eat of the disease, is explained ; hence also the filing of a saw or any grating noise sets the teeth on edge. The sym- pathetic pains in the eyes, temples and different part of the face, caused by diseased teeth, are also explained by the in- timate connexion existing between the three great branches of the fifth pair. Nature has given man (and most mammalia,) two sets of teeth; the first, temporary or milk teeth, which are intended to serve during childhood, and the permanent or adult teeth, inten- ded to last from the falling of the temporary ones to the end of life. The reasons of this bountiful provision of nature are obvi- ous, namely, the different size and shape of the jaws, at different ages, and the peculiar formation of the tec-jh not permitting an increase of growth in them, as in other bones. There are thirty-two adult teeth; sixteen in each jaw; namely, four incisores, or front teeth, j(from the latin incidere, to cut;) two cuspidati or eye teeth, (cuspis, a spear, spear pointed,) four bicuspides, or small double teeth, (from bis, twice and cuspis, two pointed ;) six molares or grinders, (molaris, a mill-stone.) The last molar teeth in each jaw are called wisdom teeth, (dentes sapiential) because we generally get them about eigh- teen or twenty years of age, or the age of full maturity. There are twenty temporary teeth, ten in each jaw ; four incisores, two cuspidati, and four molares. It is unnecessary to give a particular description of each tooth, as every one knows more or less of the shape of the teeth from observation. The incisores are somewhat wedge shaped, widesjt at the cutting edge and gradually diminishing towards the neck ; they are slightly concave externally and convex internally, but the concavity is interrupted by a tubercle near the neck. They are situated in the anterior part of the jaws, and form the centre of the maxillary arch ; each has but one fang. The central incisores of the upper jaw are much larger than the lateral incisores adjoining them. The incisores of the lower jaw are much smaller than those of the upper, aud nearly re- semble each other in shape.