Do All Teeth Whiteners Work on Crowns or Colored Fillings?

The answer is no!  You cannot bleach crowns or tooth colored fillings.  If you have these types of restorations and want your teeth whitened, you would have to replace the crowns/fillings following your bleaching procedure.  

Porcelain crowns never change color.  If you want to change the color of the crowns and veneers, you must replace them with new ones that are a different shade.  If you are considering having whiter crowns, think about whitening the teeth around the crowns first so that the dentist can match your  new crowns/veneers to your new white smile!

Teeth whiteners only work on natural tooth structure, so the shade of crowns and filling material will not change.  Your teeth will whiten, but the rest will not.  It is important to consider this before proceeding with the whitening process.  If you already have fillings on your front teeth, it's possible to redo the fillings with a lighter shade of filling material, and you could also redo a crown in a lighter shade if that's what you needed to do to have lighter teeth match the work you have done.