Amazon offers the Oral-B Professional Healthy Clean + ProWhite Precision 4000 Electric Toothbrush, model no. 6905585689, for $65.99. Clip the on-page coupon to drop it to $45.99. (Price will show in cart.) With free shipping, that's $20 under our December mention and the lowest no-rebate price we've seen. (It's a current low by $27.) It features an ergonomic handle, FlossAction technology, four cleaning modes, timer, and a pressure indicator to warn when brushing too hard.