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2. 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 ...

3. Sonicare - Wikipedia

   en.wikipedia.org/wiki/Sonicare

   A few months later Optiva Corporation changed its name to Philips Oral Healthcare, Inc. By the end of 2001, Sonicare had become the number-one selling rechargeable power toothbrush in the United States. [11] In 2003, to improve Philips brand recognition in the US, Philips rebranded the Sonicare toothbrush as "Philips Sonicare".

4. Electric toothbrush - Wikipedia

   en.wikipedia.org/wiki/Electric_toothbrush

   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.

5. 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.

6. 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.

7. Sonic the Hedgehog 2 (film) - Wikipedia

   en.wikipedia.org/wiki/Sonic_the_Hedgehog_2_(film)

   Sonic the Hedgehog 2 [b] is a 2022 action-adventure comedy film based on the video game series published by Sega. The sequel to the 2020 film Sonic the Hedgehog , it was directed by Jeff Fowler and written by Pat Casey , Josh Miller , and John Whittington , based on a story by Casey and Miller.