Can a Traumed Yellow Tooth Be Whitenend? Its Between Dark/light Yellow.

When a tooth discolors after it has taken trauma it typically means that the nerve is necrotic (dead).  With these teeth many times you will need to first have the tooth treated with a root canal.  At that point, you could try internal bleaching.  It is not the most predictable procedure as far as how much it will whiten, but it is a conservative place to start.  A more predictable aesthetic result would be to place a veneer or all ceramic crown on the tooth that matches the remaining teeth.  

Try the following sequence:  Make sure your tooth does not need a root canal-Sometimes teeth die and a yellowing tooth can be the result.  Then -1-Try custom whitening trays-My banker drove me crazy with his one yellow tooth.  I offered to have him whiten -no charge-It worked!!!!   2-Try Internal whitening if it has a root canal and when it is done if the dentist uses IRM as the plug under the filling the odds of resorption go down.  (Resorption can occur on any tooth but that is when the tooth attacts itself.)  3-You can always do a veneer to cover the discoloration.  Just remember, once you do a veneer, it is permanent.  Good luck-Start conservative and work it through.

You may be able to whiten the tooth.  If you already had a root canal your dentist can internally bleach the tooth and add some external bleaching as well.  If the tooth does not have a root canal then only eternal whitening like KoR can be preformed.