My $150 "smart toothbrush" (some Oral B iO model) has accelerometers to track its head position and the app lets you know if you're not covering certain areas well enough. Since using it properly (i.e. checking the app and adjusting my brushing) I don't have to go to the hygienist as often.
My $150 "smart toothbrush" (some Oral B iO model) has accelerometers to track its head position and the app lets you know if you're not covering certain areas well enough. Since using it properly (i.e. checking the app and adjusting my brushing) I don't have to go to the hygienist as often.