The first electric dental drill

The first electric dental drill

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  • How the dentist drill works

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The inventor was American dentist George Green. For most of the 19th century, dentists had relied on foot pedals to drive their drills. Pedal-driven drills rotated at 15 revolutions per minute. Green created a pneumatic version of a drill run by a pedal-powered bellows. Modern electric drills rotate up to 400,000 rpm.

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