“Alexa, how's my brushing?” Procter & Gamble’s Oral-B Guide, a smart brushing solution featuring a voice-integrated toothbrush, is now available. The system includes an Oral-B Electric Toothbrush, an Alexa Built-in Smart Charger base, one Oral-B Brush Head and a Quick-Start Guide.   Together, they’re designed to upgrade and bring a bit of fun to consumers’ bathroom routines, hands-free, while guiding good habits tailored to each person’s brushing style and monitoring prog...