Do you think it can be cleaned and preserved???

My wedding day was almost 7 years ago and I never even cleaned or preserved my gown. My train wasn't secured the right way and someone stepped on it and snapped the bustle straps so my train ended up being dragged on the dirty floor all night. I just took a look at my dress and it looks BAD. Do you think it can be SAVED??? I have two daughters and I would like to save it for them to wear if either of them chooses to, what are the chances of getting out the stains and dirt after 7 years?? Thanks in advance.