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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.
Electric toothbrushes can also be classified according to the speed of their movements as standard power toothbrushes, sonic toothbrushes or ultrasonic toothbrushes. If the motion of the toothbrush is sufficiently rapid to produce a hum in the audible frequency of human range (20 Hz to 20,000 Hz), it can be classified as a sonic toothbrush.
A 2022 study noted a "small but significant difference" in the efficacy of oscillating-rotating toothbrushes compared to sonic toothbrushes. Ultrasonic toothbrushes: These operate at frequencies ...
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]
The bottom line: It is strongly recommended that you change your toothbrush or toothbrush head every three months, when the bristles are worn or frayed, or if you become ill. Rinsing in hot water ...
Of course, a whitening kit alone won't cut it — oral hygiene and maintenance are key to a healthy mouth and dazzling smile, and this wildly popular toothbrush will help you achieve just that.