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A typical electric toothbrush. An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth.
The first nylon bristle toothbrush made with nylon yarn went on sale on February 24, 1938. The first electric toothbrush, the Broxodent, was invented in Switzerland in 1954. [26] By the turn of the 21st century nylon had come to be widely used for the bristles and the handles were usually molded from thermoplastic materials. [6]
The edits about Broxodent are made by user "liwoog". Woog is also the last name of the person who invented it. I'm thinking someone is trying to promote a family member's legacy or something. 16 April 2009 —Preceding unsigned comment added by 76.249.244.63 ( talk ) 05:16, 16 April 2009 (UTC) [ reply ]
Electric toothbrush, the Broxodent by Dr. Philippe Guy Woog [29] Gearless cement drive developed by Brown, Boveri & Cie in 1969 [30] Internal combustion engine invented in 1806 by François Isaac de Rivaz, using oxygen and hydrogen. [31] LCD projector at Brown Boveri & Cie [6] Precision machinery: Thread whirling by Tornos in the 1990s [32]