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2. Sonicare - Wikipedia

   en.wikipedia.org/wiki/Sonicare

   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]

3. The best toothbrushes for healthy gums and teeth, tested and ...

   www.aol.com/lifestyle/best-electric-toothbrush...

   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 ...

4. Electric toothbrush - Wikipedia

   en.wikipedia.org/wiki/Electric_toothbrush

   A toothbrush operating at a frequency or vibration of less than 20,000 Hz is a "sonic" toothbrush. It is called "sonic" because its operating frequency, for example 31,000 movements per minute, is within the human hearing range of between roughly 20 Hz to about 20,000 Hz.

5. Ultrasonic toothbrush - Wikipedia

   en.wikipedia.org/wiki/Ultrasonic_toothbrush

   Ultrasonic toothbrush (Megasonex) 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.

6. Amazon says these are the top 100 Cyber Monday deals ... - AOL

   www.aol.com/lifestyle/amazon-says-these-are-the...

   Sonic X Shadow Generations Nintendo Switch game for $29.99 (save $20) ... Oral-B iO Deep Clean Electric Toothbrush for $55.99 (save $45) Philips Sonicare Electric Toothbrush for $59.96 (save $50) ...

7. Toothbrush - Wikipedia

   en.wikipedia.org/wiki/Toothbrush

   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.