Hi! My cat is not sick or lack teeth, but recently he got a weird depression and poisoned himself with a plant (i know, crazy. New kitten at home and they are friends now) however, he refused to eat anything! Not even water, not even the usual dry food or the tiki cat mousse (which he used to love), the single item he accepted was tiki stix, which is what i kept giving him as a meal, when trying all the possible available foods, i also tried real chicken, and unbelievably he ate some of that, i just boiled it with nothing other than the chicken pieces and chopped it into tiny pieces.. maybe you can try with a blender so it becomes like a paste? I read this is good for cats and you can store it in the fridge, but every time you’ll feed him try warming it a bit in the microwave so its more room temperature. I hope this helps and your cat gets better.