Your teeth could soon be protected by a futuristic force field
For all the engineering packed into modern electric toothbrushes, cleaning your teeth still largely amounts to little more than sweeping a miniature broom around your mouth to inconvenience your tiny squatters.
A new experimental brush developed by researchers in China gives those bristles a bit of a zap, using piezoelectric filaments to produce an electrical charge that drives a sterilizing chemical reaction to expose and damage the bacteria responsible for plaque and cavities.
Keeping your pearly whites clean essentially amounts to a fight against the acid-producing bacteria that call our teeth and gums home. Unfortunately for us, those tenants have evolved a sticky knack for evading eviction, creating a webbing known as biofilm that prevents them from being easily licked or swallowed away.
Toothbrushing does a suitable job of tearing into this matrix and clearing away residual food, forcing the bacteria to waste time and energy bouncing back each day. ...
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