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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]
DHL Group was the largest logistics company worldwide in 2022. [5] [better source needed] DHL Group is the successor to the German mail authority Deutsche Bundespost, the oldest modern postal service in the world, [6] tracing its roots to the middle ages. It was privatized in 1995 and became a fully independent company in 2000.
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.
Cost: $200 | Cleaning: Sonic | Color options: Black, white, gray, pink. If you’ve been noodling over which electric toothbrush to get, you’ve likely seen Oral-B’s brushes get pitted against ...
DHL (German pronunciation: [ˌdeːhaːˈʔɛl]) is a multinational logistics brand, founded in the United States and headquartered in Bonn, Germany. [5] It provides courier, package delivery, and express mail service, delivering over 1.7 billion parcels per year. [6]
2012: Oral-B Trizone 1000 electric toothbrush with brush head shape and brushing technique similar to a manual brush. 2014: the first toothbrush with Bluetooth 4.0 Oral-B SmartSeries technology. 2017: New version of the battery, holds a charge 2 times longer and charges 2 times faster. 2019: Genius X toothbrush with artificial intelligence.
The Forwarding division carries goods by rail, road, air and sea under the DHL brand and includes the DHL Freight operation which runs a ground-based freight network covering Europe, Russia and traffic into the Middle East. In 2016, this division's revenue declined by 7.7 percent to €13.7 billion, but earnings before interest and taxes (EBIT ...
Electric toothbrushes can be classified, according to the speed of their movements as: standard power toothbrushes, sonic toothbrushes, or ultrasonic toothbrushes. 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 ...