A. Hi there. I am sorry to hear about your problem. Internal bleaching is an option- but can be quite unpredicatable. The tooth may need to be root treated first, which I am unsure if you have already had this done. When you have had trauma to a tooth, it is not uncommon for the the tooth to appear darker as years go by. As you have braces on at the moment, the treatment itself is not impossible, but may be better by waiting til the braces are off and the teeth are fully aligned. You are probably better askign your dentist to see what he/she would recommend. I hope you get this sorted out as it is obviously a worry to you. good Luck.