Weening off critical care

I have a 4 year old chin who couldnt close his mouth due to elongated molars. He went in twice over 2 weeks to get them trimmed. His last trimming was last wednesday. He has been on critical care and meloxicam since his trimming. He loves the critcal care but im having trouble having him switch to pellets (hard or softened) or hay. Ive been trying to transition from critical care to my own mixture of finely ground pellets/timothy hay/botanical hay/alfalfa hay. I can get him to eat a 50/50 mixture but he wont really touch anything else (wont touch 75 own mixture/25 critical care). Any suggestions? He'll eat the mixture either out of his cage off my hand or in a small dish in his cage.