I have to get one of my baby teeth pulled and the adult tooth brought down with !

I have to get one of my baby teeth pulled and the adult tooth brought down with a chain...?

For people who've had the procedure, how long does it usually take for the chain to bring the adult tooth down. I'm trying to decide on a date to do it on, and I really want to do it in time so I won't have missing teeth when school starts again!
Thanks in advance!

It varies on how long it can take. I've seen it done in 6weeks but I've also seen it take as long 4-5 months. Ideally the slower it's done the better. That way the bone surrounding the tooth has time to adjust and grow to support the tooth in it's new position.