My 13 year old son is soon to have braces fitted. He has 2 teeth coming out quite high up in his top gum and has overcrowding.
Before he starts the braces treatment he has to have teeth extracted. The plan is to take 2 teeth from the top and 2 from the bottom. He has also retained 5 baby teeth and they have to come out as well. The dentist has given him 2 appointments to get out the 9 teeth.
He is very nervous about the exractions and thinking and talking about it all the time.

Is it normal to have so many teeth out for braces and will 2 appointments be enough?

I would really appreciate any advice that anyone can offer.