My foster kitty Merlin just went through that. He's 15 and his dental was last weekend - had two toofies pulled.

Coco kitty will need soft food for a day or two but then you'll see, he'll be right back to normal and feeling a whole lot better. You will also need to administer some antibiotics for about 7 days after just to keep any infection at bay. My vet gave me liquid Clavamox and I mix his dose in with the wet food and he gobbles it up.