D.B.
C., the only thing you can do to help him is to take him to the dentist every six months, get his teeth checked by a pediatric orthodonist, and shell out the money.
Back in OUR day, there was not a whole lot they could do early on, like expanders, all that. So many kids I knew had to wear headsets outside of their mouths - yuck! I had to wear the wrapped round each tooth type of bands, and then or course there were the rubber bands. Nowadays, there is the Damon System (so much LESS pain!) and for regular braces, less metal, and even the see through ones.
But before that, for your son, the pre-brace deal will help. And remember that when his permanent teeth come in, they are supposed to be big for his little face. If they aren't he'll look like he has peg teeth all the rest of the older years of his life.
Dawn