Brushing teeth

Isabella has four teeth now so I bought her a set of toothbrush (a total of three brushes - one for brushing gum, one for the new teeth, one for the well grown teeth). Because I want her to establish a good teeth brushing habit, I started to let her see me brushing my teeth when she was very very young. Therefore, when I gave her a toothbrush last Sunday, she put it into her mouth and started to brush her gum without hesitation.

My next challenge is the potty-training. I started to let her sit on her potty for fifteen minutes every day but she doesn't like it and wanna go away all the time.