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.