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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.
Ultrasonic toothbrushes: These operate at frequencies even higher than sonic toothbrushes, ... A toothbrush with V-shaped bristles, designed specifically for orthodontic patients, can help clean ...
Typically, ultrasonic toothbrushes approved by the U.S. Food and Drug Administration (FDA) operate at a frequency of 1.6 MHz, which translates to 192 million movements per minute. Ultrasonic toothbrushes emit vibrations that are very high in frequency but low in amplitude. These vibrations break up bacterial chains that make up dental plaque ...
A second review found no clinical evidence for the dynamic fluid activity of the Sonicare toothbrush being more effective in plaque removal than an Oral-B oscillating/rotating electric toothbrush. [4] A 2007 study comparing the two found the rotation/oscillation brush to be more effective in single-use plaque reduction. [5]
Any electric toothbrush is technically a powered toothbrush. If the motion of the toothbrush is sufficiently rapid to produce a hum in the audible frequency range (20 Hz to 20,000 Hz), it can be classified as a sonic toothbrush. Any electric toothbrush with movement faster than this limit can be classified as an ultrasonic toothbrush.
Previously, all children's toothbrushes were just scaled down adult brushes. To make this toothbrush "Smart Design" studied the brushing behavior of more than 100 kids, coming up with the shape that encourages proper brushing technique. [15] 1996 – Reach introduced Reach Plaque Sweeper toothbrush and Reach Floss Gentle Gum Care. [16]
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