I wont be able to grow any adult teeth once my baby teeth fall out. How can I close such a huge gap? (photos)

Hi, Im a 20 year old female and each time I've visited the dentist they've told me that my 2 bottom teeth (the baby ones) will not be able to grow any adult teeth once they fall out. If they fall out (which they've already started to feel a bit wiggly) I'll be left with a 10mm gap :( I know I also have a chip on my upper tooth but its not a priority for me at the moment. Any advice will be truly appreciated! Any help will be great!

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