>>43913368>>43913649It's true, I moved to an electric brush when the dentist told me my brushing harder to make my teeth feel "clean" was damaging the enamel and could cause permanent issues if I didn't ease off. Most electric brushes turn off if you press too hard, because the motor senses resistance. A phone app relying on the camera won't be able to tell, except I would have thought going too violently, ie. too fast, was an indicator you're doing it wrong.
Anyway the whole idea is stupid because you'll spray your phone with spittle and toothpaste foam if you brush with your mouth open.
