Yes, the retained baby teeth will give her horrible breathe. It is not fun. I waited until Snickers was over 1 year old to have his last baby canine removed. Some are lucky and all will fall out on their own. Many of us had to have the baby teeth removed.
Snickers did not have the best or wrost breathe but now that the last baby tooth is out, his breathe is so sweet I could kiss him on the lips
LOL
Snick & Viv