Here is an article that talks about TBI and "denial". It also states there are certain situations (such as if the person is in danger of the denial) when there must be some intervention. Other times, it is ok to ignore it.
http://main.uab.edu/tbi/show.asp?durki=48139
Here's another one. This is an older reference, but it's told from the perspective of a TBI survivor:
http://barbara-pytel.suite101.com/tb...ications-a3229