Bisset mentions
an account of an old woman who acquired twelve molar teeth at the
age of ninety-eight. Carre notes a case of dental eruption in an
individual of eighty-five. Mazzoti speaks of a third dentition,
and Ysabeau writes of dentition of a molar at the age of
ninety-two. There is a record of a physician of the name of Slave
who retained all his second teeth until the age of eighty, when
they fell out; after five years another set appeared, which he
retained until his death at one hundred. In the same report there
is mentioned an old Scotchman who died at one hundred and ten,
whose teeth were renewed at an advanced age after he had lost his
second teeth. One of the older journals speaks of dentition at
seventy, eighty-four, ninety, and one hundred and fourteen. The
Philosophical Transactions of London contain accounts of
dentition at seventy-five and eighty-one. Bassett tells of an old
woman who had twelve molar teeth at the age of eighty-eight. In
France there is recorded dentition at eighty-five and an account
of an old man of seventy-three who had six new teeth. Von Helmont
relates an instance of triple dentition at the same age. There is
recorded in Germany an account of a woman of ninety who had
dentition at forty-seven and sixty-seven, each time a new set of
teeth appearing; Hunter and Petrequin have observed similar
cases.
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