I second rice and boiled Hamburg. Very easy on the stomach. Hope things turn out.
Both of our two Toy Rat Terriers, both age 13, has bad teeth, probably due to our not brushing them and always feeding the soft food like Caesars. One was much worse than the other and ended up having 3 teeth pulled. But before she got to that point, we found that the cheap canned food at Tractor Supply was by far her choice.
Before the teeth pulling though, she wouldn't eat, or eat VERY little. She started out at 5.5# and dropped to 4.1# pretty darn quick. We thought she was surely gone, suspecting some sort of intestinal problem. After removing the infected teeth, the Vet put her on steroids. That bumped up the appetite almost immediately. She's now back to 5.0# and much spryer. She's once again, a live wire.
I get really depressed when I think about when the time comes to have to put either one down. That's as bad, or the same, as loosing a member of your family. I can only hope for the best for Chloe, and for her family.
Lesson Learned: Don't feed your dog ONLY soft foods. They need something to keep those teeth clean, be it dog bones, dry food, or brushing.