feeding a dog without teeth

Question
QUESTION: My dog does not have any teeth and I'm looking for some advice as to what to feed her.  I used to feed her kibble that I would soak in water for a day and then run through a food processor, but that got to be too time consuming. My vet suggested to just give her wet food, and I've noticed that the food is just running right through her. Do you have any suggestions? (she is a chihuahua/beagle mix, around 8-12years old) Thanks!

ANSWER: Is the wet similar to the dry she had been eating?  If not, find a wet version of the dry.

---------- FOLLOW-UP ----------

QUESTION: Not sure if I understand your question. It was the same brand; Science Diet for Seniors...?

Answer
Likely both have the same lamb meal and rice base.  Try this for a weak and see if she stabilizes.  

If a dog is having trouble keeping anything down or continuing diarrhea try this out of the manual I have from a large, knowledgeable dog guide school.

Bland recovery diet for dogs.

3 parts cooked rice, one part boiled hamburger or chicken, or cottage cheese. I think you can substitute boiled potatoes for the rice. Once in an emergency, we bought a plain baked potato from Wendy's.

This is meant for short time settling a dog's digestive tract. It is not the complete and balanced diet they need long term. I have seen it work.

If that settles her down, then slowly introduce the wet again over a week.