If you are in an area where there is no flouride in the water, it is recommended that you use the kids toothpaste a little earlier. It's apparently good for them to swallow a bit as they get no other flouride. Brissy now has it in the water, I'm not sure if that extends to you? But in any case, the toothpaste is more for ongoing tooth strength, the cleaning is all in the mechanics - that is the action of the brush on the teeth.