My 13 month ds (7 teeth) grabs the toothbrush in a vice like grip, clamps his jaws around it and sucks the smear of toothpaste off. Any attempt at brushing or at trying to take over the toothbrush results in instant fury and crying so i don't but I don't think what we're doing is having any effect at all. Does anyone else have this problem & if so what did you do? I've tried watching in the mirror, giving him another toothbrush while i try to brush his teeth. Nothing works. He used to let me brush for a bit but not now. Someone told me a rubber bristle brush(?) is effective but she's only seen it in Germany. Should i just let him carry on the toothbrush sucking routine til he's older?