The short answer is yes.
Not sure from your question if you mean she is still young enough that she still has baby teeth, or she is older and baby teeth remain with no permanent ones coming. If she is young and has mixed dentition, consider phasing braces. Phase one closes the gap and makes room for the other permanent teeth to come in, then phase 2 finishes the job when she is ready.
If she is older, the plan might be a bit more complicated. Braces to align everything and hold space until she is old enough for implants might be a good option.
It is best to get a consultation with your local orthodontist to go over options.
Web reference: http://www.DrTimmerman.com