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It can be easy to mock the very concept of a “smart toothbrush” — what other device in our lives do we use daily that seems least in need of a connected upgrade? But Oral-B has been upgrading its ...

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The Oral-B iO Deep Clean Electric Toothbrush is on sale for 40% off during Amazon's Prime Big Deal Days. This smart toothbrush features five cleaning settings and a pressure sensor for optimal ...