It's all in the details. Ever stop to read what actually is in your toothpaste? Some of the ingredients are pretty controversial.

We talked with Dr. Shahkarami, a DDS specializing in cosmetic and restorative dentistry and learned a whole lot we didn't know before. If you missed Part One, click here. Now read on to learn what other ingredients you should watch out for:

"Again, Tom's of Maine and several other natural toothpaste brands offer a variety of toothpaste without many or all of the ingredients listed above. I would warn though against eliminating fluoride from regular dental care as the benefits far outweigh the risks."

What brand of toothpaste do you use? Tell us with a note below!