Great news! I just got off the phone with the vet who saw Thelma Lou on Monday. She is soooo nice, by the way. I'm glad, because we are still looking for a vet we like since we are new to the area.
Anyway, the biggest concern for the vet is that we do not breed her or plan on showing her, as this is a genetic condition. She is a non-conformist. Already causing trouble.
She said we could spay her between 5-6 months and go ahead and remove the baby teeth then (it is actually two teeth on each side and not one with a split. I guess the bottoms are just really tight together) so it's easier for the adult canines to come in. $25 to remove the baby teeth.
Then, worst case scenario, she does grow two adult canines in. She will need to go back in and under sedation to have one on each side removed. Leaving them in could result in periodontal disease, gum recession, etc, due to food and fur getting stuck between them. Estimated cost is under $200.
Early care is just brushing with a finger brush to help keep her gums stimulated and get her used to having her teeth brushed. Nothing special. Letting her play with ropes and things to encourage those baby canines to fall out quickly.
So, it looks like its going to be a non-issue! We had no intention of breeding or showing her-we just want a family companion-and it looks like even if things turn out worst case, it's not a big deal.
And we found a vet in the process. Kind of a win-win. And the vet said lots of nice things about the breeder, which made me feel good.