Called Blizzident, this 3D-printed toothbrush is custom made for your mouth and allows you to brush all your teeth simply by biting and grinding it.
To brush with the Blizzident, you simply bite down on it and grind your teeth for about six seconds. The biting motion achieves the same effect as the two common teeth cleaning motions the Modified Bass technique, in which the brush is positioned at a 45-degree angle to the teeth and moved back and forth, and the Fones technique, in which the brush is held at right angles to the teeth and moved circularly.
The above image is from 3ders.org and comes from the article titled Blizzident releases 3D printed 6 seconds toothbrush tailored to your teeth.
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