Good! I'm sure you'll do fine.
Just a couple things that might help you. They have a code for cleaning, a code for fillings, a code for crowns, etc. Then you need to put the tooth number, and the surface, which is represented by a letter (I think!). But that is really all there is to it. I was trying to think back, it's been about 11 years since I did it.
Anyway, a couple months from now you'll be an expert!
Michele