Earlier quoted context omitted.
There is quite some innovation, but consumers are slow to adopt IMO. Last year, my dentist warned me I have quite severe receded gums. This was due to me pushing my toothbrush too hard. So, after doing some research I bought an ultrasonic toothbrush. These have a static head (it does not oscillate/rotate) which emits ultrasonic waves to clean your teeth. Same principle of an ultrasonic parts cleaner. The head is stil…
How often do you change brush heads? They are quite expensive at $15/piece.
The main thing is that you do not need to brush with any friction. You just move the brush gently over your teeth, so they barely wear.
For me this is also why I like it. With traditional hand brushes, I'd wear them out in 3 months or so. In hindsight this was a clear indicator that I was pushing way to hard on them.