When HN users recommended it
1 HN user recommended this in 2019, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2019, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
> I wonder if one can readily track toothbrush [handle] and jaw movements tightly enough to produce a "brushing map" indicating areas that are getting less attention.
They invented this decades ago.
I remember in the 80s when I was a kid going to the dentist.
They would get you to chew some type of pill that temporarily stained your teeth. Then you would brush your teeth while your dentist watched.
In the end you were able to see exactly what you missed because of the stain. It was really a genius product.
Back then it was something you did at the dentist's office but it looks like Amazon has them for sale at: https://www.amazon.com/Butler-Red-cote-Dental-Disclosing-Tab...
I'm not a dentist, so I would ask your dentist before trying them.
Like programming, being able to see the output of what's happening really helps debugging!