if the nerve was crushed you wouldn't feel nothing because it die but later you will have symptoms like bone loss ,tooth discoloration,pain and with time tooth loss I think if you go to your dentist and ask only for an xrays of that tooth and no more treatment you will be paying no more than $30 and with this you can know what is the status of that tooth ,if you do nothing you can finish loosing the tooth and is a front tooth ! people dont understand that as soon you receive the treatment it will cost less because if you loose it you will be paying more for a prosthesis.
get a check it is your health ,we pay for other things like fast foods ,beauty salon ,carwashes,sometimes we bought things that we never use, and we forgot that beeing healthy is more important .....prevention is the key of money saving