Especially that Amazon with its price 34% lower than supermarkets (15 euros) brings the price of the brush to 3.33 euros, the price of a manual toothbrush quality. The product and the original brand with delivery in 2 days.
Teeth happen to the sand will not make them whiter and will not be more effective against limescale but will cause a retraction of gums. From 35-40 years your dentist will tell you about how your gums very insistent Your teeth can be perfect but still remove their shoes if your gums no longer fulfill their role and there is the beginning of very big trouble, painful and expensive.