Benni
my 5th tooth on the right has cost me so far near £400 ..
tooth bad drilled ..nerve removed gold cap basically full tooth gone apart from the shell ..BUT as there is no blood to the shell ..the outer shell goes black and feels dead ..so you have a full gold cap with a white shell for a while .lasted about 4 years for me ..
tooth now looks black .

on the outside
next time pull it out ..
the nerve looks like a bit of white string
BUT they dig deep to find it
ENJOY