Had Trauma to Two Front Teeth. Implant for One, the Other Turned Grey/Stabilized Over Time. Can it be Bleached?

I have read and seen in seminars that teeth can be bleached from behind but this is not very reliable and can take several months of bleaching every day. Not predictable. Your grey tooth needs to be tested for vitality because chances are that a dark tooth is a dead tooth. If the nerve is dead, then a more predictable option will be to do a root canal to remove the dead nerve and whiten the tooth from the inside. If you don't wan to do this, then your other option is to re-do the... more

If the grey tooth's nerve is truly viable, then you will NOT see any benefit from bleaching it from behind. I'm not sure that it is still viable, if it turned grey from the trauma. If it tests to be "non-vital", then you would need root canal therapy, after which you could try an "internal bleaching" of the tooth from behind. That could result in a whiter looking tooth.

After an injury or trauma a tooth can turn grey. It can be slight or it can be substantial. Once a tooth turns grey, they are difficult to whiten well, or specifically, keep whitened. Once a porcelain veneer is placed over the front of it, it is difficult to get much lightening from re-whitening. After more than twenty years of doing all sorts of whitening treatments, I have found that you may get a very slight improvement with some diligent re-whitening, but there's not... more