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If your dentist has been giving you grief about your oral hygiene lately, listen up: We found a deal you won’t want to miss. The Oral-B Genius X Limited rechargeable electric toothbrush is the best electric toothbrush many reviewers say they’ve ever had, and right now, it’s 50% off for Amazon Prime members, the lowest price it’s been all year . This rarely goes on sale, so don’t pass up the opportunity to score a discount while you can.

Even with the huge discount, you might be (understandably) skeptical about spending $100 on a toothbrush, but trust us when we say this appears to be worth the splurge. Reviewers have said this investment into their oral health has been “worth every penny” and even helped them save money on dental bills in the long run. The Genius X Limited is more high-tech than your average electric toothbrush.

Not only does the brand claim that it can remove up to 100% more plaque than your standard manual toothbrush, but thanks to AI brushing recognition, you can use Bluetooth track your brushing habits with the Oral-B app. It can actually give you personalized coaching to make sure you’re brushing everywhere you need to, for how long you need to, with the right amount of pressure. Talk about a toothbrush that works for.