Can You Get Braces Just for Teeth Gaps? (photo)

I have spaces between my teeth that my dentist thought would close after my adult teeth came in but didn't. I think my teeth are not proportionate to my jaw size or something. Anyways, shes recommending I see an orthodontist for them. There is nothing wrong with my bite so Im curious if this is an orthodontist issue or if shes sending me in the wrong direction and I need to look into dental restoration or something else. Thanks