Get the lowest prices of 2025 with up to 65% off: In this video, I’ll show how I built it, how it works, and why it might just make your old toothbrush jealous. Is it 3× better? 3× faster? Or just 3× ...

Take two toothbrushes and gently “wiggle” them as you press them together so that the bristles are all intertwined as shown. Now, attempt to pull the toothbrushes apart by pulling each handle in the ...

If you're looking for a new toothbrush, it's easy to get overwhelmed by all the options. Many come with fancy features, which increase the price of the brush, but do you really need them? A basic, ADA ...

This activity that’s next on our list of science activities for toddlers and preschoolers is very useful actually because it teaches children that brushing your teeth is very important. You need a ...