The Culture Shock of Flossing
theguardian.com
theguardian.com
Maybe, it's also related to the cost of dental procedures. For example, in some post-USSR countries, getting a filling or even a crown costs $50-100 (might be cheaper if you don't care about quality).
I believe this is cheaper than in the USA by several orders.
As for flossing, what bothers me is that a lot of popular bands have PFAs, which is not exactly what you want to put into your mouth during a potentially blood-contacting procedure.
https://www.consumerreports.org/toxic-chemicals-substances/d...