Page 360 - My FlipBook

336 THIRD PERIOD—MODERN TIMES
above fifty years of age, the transplanted teeth do not take root perfectly
except in an average of one case in three. For carrying out this operation
he never made use of teeth extracted from the mouth of a living person,
but, on the contrary, he used the teeth of young and healthy subjects

Fig. 102

Full lower set in hippopotamus ivory, with human front teeth; seventeenth century.
(From Guerini's collection.)

Fig. 103

Upper denture in ivory, at the end of the eighteenth century, for a case in which the
last molars and the front teeth were present. (From Guerini's collection.)

who had died a violent death; these were, besides, carefully cleaned
before transplanting them, and in this way the author believed the trans-
mission of disease to be nearly impossible.^
E. WiCHMANN combated energetically the practice, then pretty
J.
general, of endeavoring to facilitate the eruption of the teeth bv
' Hirsch, I'raktische Hemerkungen iilnr die Zahne und einige Krankheiten derselben,
Jena, 1796.