What does it do? The sonic movement creates air bubbles that disrupt the plaque biofilm that causes gum disease. It also massages the gums to promote blood circulation. It has also been proven to remove staining and reduce the risk of enamel abrasion and gum recession.

Spinbrush™ PRO CLEAN Toothbrush removes up to 70% more plaque vs. a manual brush in hard-to-reach places and the hydro-blocking SoftSwitch helps prevent water from leaking inside. Spinbrush™ PRO WHITEN Toothbrush delivers whiter teeth in one week with specially designed rotating whitening cup in toothbrush head.

Sonic toothbrushes have vibrating brush heads that move bristles side-to-side at high speeds. To be classified as a sonic toothbrush, the vibration has to be fast enough to produce an audible hum. Sonic toothbrushes on the market today offer frequencies up to and over 50,000 movements per minute.

Your Spinbrush toothbrush works with a series of gears and linkages that turn when a powered motor is switched on. This makes the round upper brush head quickly spin back and forth (oscillate) and moves the lower brush head up and down. The result is a dual-action brush head for the most effective clean.

The large number of brush strokes per minute means that the vibration of the toothbrush is actually within the range of human hearing, which is why it's called a sonic toothbrush.

Because sonic toothbrushes vibrate at around 10 times the rate of an electric toothbrush, a two-minute brushing session with a sonic toothbrush will give you more cleaning power. Another benefit of sonic toothbrushes is that they offer a secondary type of cleaning related to an effect called fluid dynamics.

The bottom line on finding the best spin scrubbers

• Best overall: Electric Spin Scrubber Cordless Shower Scrubber.
• Best power scrubber: Ryobi 18-Volt ONE+ Cordless Telescoping Power Scrubber.
• Best for cars: Brush Hero Wheel Brush.
• Best for tile and grout: Rubbermaid Power Scrubber with All-Purpose Grout Head.

When you brush, you help take food and plaque off your teeth. Plaque is a sticky white film that forms on teeth. Plaque has bacteria in it. After you eat a meal or snack that has sugar, the bacteria in plaque make acids that attack tooth enamel.

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 High-Performance electric toothbrush modes (whitening, cleaning, polishing, massaging, sensitivity) to meet your varied oral needs and are suitable for any brushing purpose.

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