Oral-B still has an oscillating and rotating brush head movement, but the third cleaning dimension most typically referred to as pulsations are now known as micro-vibrations.

Oral-B cleaning modes explained - Electric Teeth Oral-B cleaning modes explained - Electric Teeth

We also have separate buying guides on Oral-B brush heads and Sonicare brush heads that explain the difference between the brushes.

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Interestingly, despite the similar design, the Smart 6 is actually part of a range of brushes that includes the Smart 4 and 5 that sit below the Genius range.

Genius 7000 Rechargeable Electric Toothbrush - Oral-B

The American Dental Association recommends consumers change their toothbrushes every three months. Unfortunately, many wait far longer than that. Unfortunately, frayed bristles aren’t as effective at cleaning your teeth. There are electric toothbrushes on the market that are designed to alert you when it’s time to change your brush head based on wear on the bristles. What this means is that the angle of the bristles on the brush head are anywhere between 15-33° and the frequency of micro vibrations are set at 145Hz. You get two extra days of charge with the Oral-B 8000 model. 12 This top-tier electric toothbrush features six brushing modes, a charging travel case, and Bluetooth connectivity. Place these brushes side by side and it is almost impossible to tell the difference between each of them. But it is perhaps the additional accessory known as the Smart Wireless Guide that is the real clincher for the 7000.Within the article, I will aim to make it as clear as possible how the iO Series differs, but it is important to be aware that differences do exist. What does each brushing mode do? Daily Clean I am confident that the Genius X motor is more powerful. I think the Pro 5000 you might have has something in the region of 8,800 oscillations and either 20,000 or 40,000 pulsations. Cleverly, the brush will too automatically reduce the head speed and stop the pulsation until the pressure is reduced.