A system of dental surgery / by the late Sir John Tomes.

  • John Tomes
Date:
1897
Catalogue details

Licence: Public Domain Mark

Credit: A system of dental surgery / by the late Sir John Tomes. Source: Wellcome Collection.

    66/764 page 54
    On comparing the jaw of the nine months’ foetus with that of a seven years’ child it is seen that that portion which lies below the line has more than doubled in its depth ; but on looking at the adult and the aged jaw it is apparent that this Figs. 25 and 26. portion of the bone has attained its full development in depth, or very nearly so, at the age of seven years, and that it remains comparatively unchanged after that time until the death of the individual. Fig. 27. Looking, however, at the alveolar portion above the horizontal line, it is apparent that it does not attain to its full develop- ment till after the permanent teeth are in place, and that so soon as the teeth are lost, it disappears, so that in the aged jaw here figured it is almost absent.
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