I admit I don't brush Uni's as often as I should. But I have found that she tolerates CET toothpaste the most, and I also use their tiny fingertip brush. It's a lot easier to get it in their tiny mouths. There was a time when I was doing it a lot, and she would even take the brush (it was the larger kind, with the long handle and big brush on one side and small brush on the other) and would brush her own teeth! Not no more