I just let DD#2 chew on her toothbrush after breakfast and dinner but I try and give her two teeth a gentle brush as well. I only use water. We only introduced toothpaste with DD#1 when she was approx 2&1/2 and even now its only the teeniest amount. As she brushes morning and night, sometimes we only do one brushing with toothpaste rather than both.

Babies sometimes get smelly breath when they are teething as well......could there be more on the way?

hth