My cat also suffered the same, took her to vet, and she all her teeth taken out, not bad fr a 16 year old cat, she jumped around next day when i got her back, like a kitten, and no pain or appreciable blood from her, she was like a new cat, 89 quid.
Then she is now suffering from slight strokes, face has dropped one side and cant walk straight, she jumps and runs, eats ok and is a happy little cat.
The vet said the frequency of the stokes could get worse and more cloeser together, and that will kill her. Oh and 30 quid for that advice.