An electric toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation, in order to clean teeth. Motions at sonic speeds or below are made by a motor. In the case of ultrasonic toothbrushes, ultrasonic motions are produced by a piezoelectric crystal. A modern electric toothbrush is usually powered by a rechargeable battery charged through inductive charging when the brush sits in the charging base between uses.[1]
History
The earliest example of an electric toothbrush was first produced by Tomlinson Moseley. Sold as the Motodent, a patent was filed by his company, Motodent Inc on December 13, 1937. In Switzerland in 1954 Dr. Philippe Guy Woog invented the Broxodent.
[2] Woog's electric toothbrushes were originally manufactured in Switzerland for Broxo S.A. The device plugged into a standard wall outlet and ran on line voltage. Electric toothbrushes were initially created for patients with limited motor skills and for orthodontic patients.
- ↑ The effectiveness of toothbrushing - Dental Tribune Europe
- ↑ Who invented the toothbrush and when was it invented?
