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The best gifts for 3-year-olds include toys that encourage role play, creativity, imagination and curiosity, as well as toys that teach empathy and cooperation.
To choose the best electric toothbrushes, manual toothbrushes, travel toothbrushes and kid-friendly options, we tested more than 15 brushes from brands like Colgate, Philips Sonicare, GUM, Oral-B ...
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.
A Philips Sonicare 5100. This model has 2 cleaning modes . The brush head vibrates at hundreds of times per second, with the latest models at 31,000 strokes per minute (517 Hz) or 62,000 movements per minute [1] (1033 Hz).
An ultrasonic toothbrush is an electric toothbrush designed for daily home use that operates by generating ultrasound in order to aid in removing plaque and rendering plaque bacteria harmless. It typically operates on a frequency of 1.6 MHz, which translates to 96,000,000 pulses or 192,000,000 movements per minute.
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