Bigot, a physician and philosopher of the sixteenth century; Boyd, the poet; Valerian, Richard III, as well as some of the ancient Greeks and Romans, were reputed to have had this anomaly.

The significance of the natal eruption of teeth is not always that of vigor, as many of the subjects succumb early in life.

There were two cases typical of fetal dentition shown before the Academie de Medecine de Paris.

One of the subjects had two middle incisors in the lower jaw and the other had one tooth well through.

Levison saw a female born with two central incisors in the lower jaw.
Thomas mentions a case of antenatal development of nine teeth.