You use it everyday, hopefully twice, but do you know how toothpaste works? In another installment of our Reactions Q and A series, we talk about what gets your chompers clean. Plus, many of you have asked what we look like, and what we do around here, so we answer that question too! Thanks for subscribing and keep the questions coming in the comments.
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Scientific consultant and host:
Darcy Gentleman, Ph.D.