We just learned about the Dentinogenesis.
When teeth are first being developed in the gums by a baby before it is born, that is called the Initiation Stage.
Babies are usually born without any teeth showing, but their mouths have already started getting ready for teeth to be made in their jaw.
The first sign of teeth getting ready is when the skin in the mouth starts to change.
Very soon a tooth will be made underneath the skin, and the gums need to be ready to heal up quickly when a tooth pokes through the skin for the first time.
(from: wikipedia - dental lamina)
Kid Facts - Blast from the past: Posterior Longitudinal Ligament
