Zobne ščetke ločimo po ščetinah, in sicer obstajata dve vrsti zobnih ščetk, mehke ščetine in trde ščetine. Ščetine mehkih ščetin so zelo mehke, tanke in goste, medtem ko so ščetine zobnih ščetk ravno nasprotno, s tršimi ščetinami. Je razmeroma tanek, a tudi zelo redek. Torej, ali so mehke ščetine zo......
Preberi večEveryone knows that toothbrushes cannot be used for a long time. Basically, they need to be changed every once in a while. Many people will change them every three months according to the written on the toothbrush. Does the toothbrush really need to be changed every three months?
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