What should you look for in a toothpaste? The best and worst ingredients, according to dentists

Some of the best ingredients in toothpaste include fluoride, potassium nitrate, and calcium carbonate.

Does baking soda whiten teeth? It can, but toothpaste is a better option — here's why

Baking soda can help whiten your teeth, though dentists say it's better to use toothpaste. Here's what you need to know.