My Mia's baby teeth are falling out, but I noticed yesterday that she has four canines on the bottom. In the last week I have found six teeth on the carpet (and one stuck in the tuggy

) Now I know if they don't come out on their own they will have to be removed, but how long should I wait before opting for the surgery? At what age is it obvious that they will NOT fall out on their own? Thanks for all the help.....