Stubborn stains won't go away? The culprit could be hidden in your diet. So, you’ve given up red wine and coffee yet your teeth are still stained. What gives? The culprit could be lurking elsewhere in ...

We’re not saying you have to give these things up (blasphemy), but if you’re bothered by a few stubborn stains it might be time to call in the big guns. Your regular toothpaste might not be powerful ...