One Tooth in Bridge Too Big

Had to have front tooth extracted due to injury, was given partial denture to use until the gum healed and have just had a bridge fitted. I am really unhappy as I have sacrificed 2 teeth either side of the extracted tooth, to get the bridge and now feel it’s obvioys which tooth was removed. Any advice on what I should do? The dentist said that my gum has shrank and in order to solve this a bone graft is my only option? Please advise.