We are really struggling to brush my 19 month old's teeth and I'm getting a bit worried about it. It was easier when he was younger, we use the brush baby sonic which is battery powered and glows, and he was quite fascinated with it. Now he just won't have it. He'll run away, press his lips together and shake his head. I don't want to force the brush into his mouth. If I hand him the brush and brush my teeth at the same time to show him, he sometimes puts it in his mouth but he won't brush properly. Usually he'll just lick the toothpaste off and then throw the tooth brush away. Does anyone have advice on what else we can try? Is this just something that I need to be worried about, i.e. will it affect his teeth? He has a healthy diet and I don't give him any sweets unless it's a special occasion but he eats quite a lot of fruit... He drinks only water and milk.