DD is 17 months old, and I admit we only brush her teeth once per day in the evening before bed. It is pure torture. She hates it! The only way to do it without having her scream her head off is to open our mouths and say 'aaahhhh' to to tune of twinkle twinkle little star. She thinks that is interesting enough to also open her mouth and say 'aaahhhh'... at least sometimes. Other times she just screams anyways. We still don't use toothpaste per the doctor's instructions. Maybe once we start she'll like toothbrushing a little better...