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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.
2012: Oral-B Trizone 1000 electric toothbrush with brush head shape and brushing technique similar to a manual brush. 2014: the first toothbrush with Bluetooth 4.0 Oral-B SmartSeries technology. 2017: New version of the battery, holds a charge 2 times longer and charges 2 times faster. 2019: Genius X toothbrush with artificial intelligence.
This is to remove the dental plaque in areas a toothbrush cannot reach. The ultimate goal of interproximal cleaning is to prevent the development of interproximal caries and periodontal disease. The combined use of tooth brushing, and mechanical and manual interdental cleaning devices has been proven to reduce the prevalence of caries and ...
The brush compound is compacted in a tool consisting of upper and lower punch and die, on mechanical or hydraulic presses. In this step, depending on later processing, the copper wire (called shunt wire) can be inserted automatically through a hole in the upper punch and fixed into the pressed brush block by the powder pressed around.
The original purpose of the taper was to enable the screws to be made using cold forming of the heads, [3]: 79–81 but the taper has two other advantages which have helped popularize it: It makes inserting the tool easier and it helps keep the screw on the tool without the user having to hold it there.
The Chevrolet Corvette (C1) is the first generation of the Corvette sports car produced by Chevrolet. It was introduced late in the 1953 model year and produced through 1962. [4] This generation is commonly referred to as the "solid-axle" generation, as the independent rear suspension did not appear until the 1963 Sting Ray.
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