If you have a ruler handy, I'm talking about less than a mm regrowth per day, which is not very much.
It's absolutely possible.
Hey, I'm about buy a digital camera. Would you like me to document this w/ pics--1st thing in the AM, then ones b4 bed?
I'm talking about a crooked edge to two front uppers, which gradually straightens out over the course of the day. I'm lucky--some people actually grind during the day, while they're awake w/o even knowing it, which i don't do.
I actually am a rat, but not genetically, just according to the Chinese calendar.. ;)