A little more info . . .
The tooth is broken off about half way down. There is pulp exposed, but it doesn't seem to be causing her any pain right now. One thing I failed to mention before, is that she is 47 days pregnant . . . so, if it is true that a root canal would have to be done within two weeks, that will pretty muh ensure that we just have it extracted when she is done whelping.
Thanks again for everyone's input.