I am so sorry that Piper is going through this. You must be a wreck. I am sure the surgeon will take good care of Piper. My Granddog who is 7 just had 7 teeth removed and she is doing fine. She still can eat kibble with no problem. They did give her an antibiotic afterwards. She had a few days of healing.
I would make sure you ask about an antibiotic with all the extractions and cleaning It is important. I will be praying for Piper