With DD we give her a toothbrush when she is in the bath and DH will get his brush and pretend to brush his teeth and she will copy him. A friend also gave me an idea to have another one at our change table so when she has a nappy change she will grab the toothbrush and put it in her mouth and make the motions, we do this more for practise than for cleaning.

Although she is such a copier at the moment that we let her stand at the bathroom door and she will watch us brush our teeth and then we get her brush and she will happily stand and let us brush her teeth for her. At the moment she is too little for toothpaste so we just use water but so far she likes to copy what mummy and daddy are doing.