I started slow with Taycie when she was a puppy. At first I just started with toothpaste on my finger and she would lick it off.. Then I moved to gauze around my finger, then a toddler size toothbrush.
I use the 4-24 months from Oral B. It is the smallest one and works the best for Taycie
A brush with fun Disney characters for babies, 4 to 24 months old.
As far as toothpaste. I love CET. I like the Vanilla Mint.