why do some toothbrushes cost hundreds of dollars? What exactly are they doing that makes them so much better?

Question

You can get a manual toothbrush for $1 or some fancy electric toothbrush for over $200. Can it really be cleaning your teeth that much better?

In: Engineering

Answer 1

Yes. The vibrate at high frequencies and do a way better job cleaning food debris around your teeth and gums. It’s like the different between sawing a board by hand and using a power saw. The data is definitive on this and you can feel a definitive difference when you switch from electric to manual or back.