As someone else mentioned, use the kids toothpaste. It will be fine to use. Mine always used to swallow until they learnt to spit.

The Oral B one is good, it s nice fruity flavour and I think it has a pic of the wiggles on it. hard to find though sometimes. I dont think Coles have it. Chemists possibly or Woolworths (Safeway).

The minty flavours young kids often dont like as they think its "hot". So especially if you are having probs, use the nice flavour first.