Exclusively for Prime members and as part of its Prime Pantry program, Amazon offers the Oral-B Professional Care 5000 Electric Toothbrush with SmartGuide in White, model no. PC-5000, for $57.14. Clip the $20 off coupon on the product page to drop the price to $37.14. With $5.99 for shipping, that's $22 under our August mention and the lowest price we've seen. (It's a current low by $57.) It features five cleaning modes, a pressure sensor with indicator light, timer, charging station, and travel case. Deal ends January 23.