What Is The Best Option For A Dead Front Tooth?

I am assuming that this tooth has discolored and that is your reason for your restorative options.  I would say that after your evaluation by an endodontist it is probably not necessary for a root canal.  An all porcelain crown would be a great option for this situation for two reasons.  Aesthetically, your crown can be matched exactly to the other teeth around it.  Also, the crown will help protect your tooth against fracturing since the canal is calcified and there is no longer any blood supply to the tooth. Good luck.

If appearance is the only concern, then root canal therapy would not be needed.  If infection was present, then a procedure called apicoectomy can be done, or extract and place an implant.

I am going to assume that it was merely discolored.  Bleaching likely won't work, and internal bleaching should only be done if a root canal has been completed.  Even though the endodontist could not see a canal, it is likely there microscopically.  The LAST thing you should do is internal bleaching, where bleach and other strong chemicals are placed on the inside of the tooth.

The best approach would be a single veneer.  It is very challenging and may take an extra visit to "get it right", but a good cosmetic dentist should be able to do this very well.

Experience of a dentist is so important when it comes to matching a front tooth.  Find an American Academy of Cosmetic Dentist (AACD) dentist.  A root canaled tooth can easily be matched to your other teeth, but again, it's all in the hands of the dentist.  Either crown or veneer will be fine if the substructure of your tooth is solid.  If the root canaled tooth is all false material, then a crown is more likely to be protective than a veneers.