Daily Archives: January 28, 2019

The Current Revolution in Smartphone and Bluetooth Toothbrush Technology

A toothbrush that is electric is one that makes fast automatic motions of the bristle either back-and-forth rotation-oscillation or plain oscillation, to clean teeth.  The motions are at sonic speeds or below are made by a tiny motor.  In the care of ultrasonic toothbrushes, ultrasonic movements are shaped by what is referred to as a “piezoelectric crystal”.  A current electric ...

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