When HN users recommended it
1 HN user recommended this in 2020, 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.
GUM Stimulator Convenient Refills Replacements
Amazon's catalog no longer lists this product (checked 2026-11-02). The name comes from the link HN users posted.
My dental hygienist is always stressing the important of getting under the gums, mainly by getting the right angle on the brush. People have a tendency to just brush with the bristles perpendicular to the surface of the tooth which misses under the gum.
This could probably be useful for a fair number of people. With all the changing directions as you move to different spots in your mouth during brushing, it is not that hard to have a section where you miss doing under the gum. If you always brush using the same route around your mouth, you could miss the gums in the same section every time.
My understanding is that the point of these fancy position sensing toothbrushes is to help you avoid doing that.
I certainly would not go out and buy one, though, unless my hygienist told me that I'm missing particular spots and I failed to fix the problem by being more careful during brushing and by using something like this [1].
[1] https://www.amazon.com/GUM-Stimulator-Convenient-Refills-Rep...