Interesting development in dental hygiene.

Note that their toothbrush bristles are made of PVDF[1]. Which might put them (for the moment) in "cure worse than the disease" territory[2][3].

[1] https://en.wikipedia.org/wiki/Polyvinylidene_fluoride

[2] https://pmc.ncbi.nlm.nih.gov/articles/PMC10886393/

[3] https://en.wikipedia.org/wiki/Opposition_to_water_fluoridati...