So, pack your electric toothbrush with confidence. Throw it in your toiletries bag, next to your tiny shampoo and your overpriced moisturizer. The TSA agent won’t blink. They’ve seen a mummified cat in a carry-on; your brush is nothing.
In fact, you can brag about it. “Did you know,” you’ll say to your seatmate, “my toothbrush has more processing power than a moon rocket?” They’ll either be impressed or edge away slowly. Either way, your teeth will be clean.
Now go forth, travel warrior. Brush. Fly. Don’t worry. And if you’re really nervous, just wrap it in a sock. It’ll look like a weird gift for your cousin. The TSA will approve.