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An electric toothbrush can help you get that dentist chair-level clean, but good brushes are costly. Well, it’s almost too good to be true: The 9500 series Philips Sonicare DiamondClean Toothbrush is on sale right now at Amazon 'til midnight — it's $100 off!

Philip Sonicare’s top-of-the-line toothbrush removes up to 10 times more plaque and improves gum health in just two weeks. That alone is reason to buy it (and get in your dentist’s good graces).

In "White" mode, the high-tech device can also fully remove stains in as little as three days. And with four different brush heads — including the new TongueCare brush — it does practically everything you need for a healthy smile. Plus, there’s personalized coaching via an app that helps you track your dental health, and the toothbrush has a scrubbing sensor to remind you to reduce pressure.

"It really whitens; it really works!" raved a five-star reviewer. "I was really skeptical that this thing could actually whiten my teeth. I noticed a huge difference on the first brush. It really breaks stuff up. I switched from a manual brush.... It really is a strong vibration. I prefer that personally because it feels like my chompers are getting really clean.... It's the best toothbrush on the market."

Turns out all that diligence paid off when he went for a checkup. "My dentist ALWAYS checks gum depth on every tooth.... They should not be deep you want nice and tight pockets with low scores," he related. "Using this toothbrush improved my gum scores dramatically, reducing some pockets from a 5 (bad) to a 2 or 3 (normal).... It was really nice to know the money was well spent and actually improved my mouth health. This thing is worth the money."

Another shopper loved the "super clean feeling" this brush left her with: "This was recommended by my hygienist, and I love it. She said she was addicted to hers and said that after using it, I would feel like I just had my teeth cleaned there at the dentist. She was absolutely right about that. This is a serious toothbrush. Regular brushing doesn't make me feel as clean."

The Sonicare DiamondClean comes in five colors: white, black, grey, pink and rose gold. It also includes a travel case, which serves as a charger, as well as a glass cup...that also charges! That's in addition to the four brush heads. At just $100 off, we have a feeling this electric toothbrush deal won’t last!

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.

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