What can be done for these 2 teeth? (photos)

As you can see I have 2 dark teeth up front, 1 is slanted. I was told by a Dentist about having a bridge, she quoted me £600, said it was £300 per tooth, does this mean 2 crowns and then 2 in the middle being false? But, I have a new Dentist now and she looked over the notes and said it can't be done, said about a crown on the front tooth but can't do much about the slanted one, she was basically negative about it all saying a bridge can't be done and so on. What do you suggest?