Did the Tooth Fairy come last night?

Today, S8 has lost his FOURTH tooth in the last 2 weeks.. and he’s looking a bit gappy!! Of course, at the first sign of a tooth getting loose, it gets wiggled, jiggled and twisted until it falls out, and we get at least twice-daily updates of wiggliness. It's now gently ensconced in darling R12's special TOOTH KEEPER, awaiting overnight discovery. Unfortunately for S8, the Tooth Fairy is sometimes too preoccupied to call, and so I've had the instruction on more than one occasion to send a reminder email to her !!!

When I was pregnant with M4, our lovely midwife told us the story of the Tooth Fairies who use the teeth as bricks for their castles, which is why it’s so important to brush them every day to keep them gleaming white !!

So, what do the Tooth Fairies do with all those teeth??