Commercial raw and few teeth!

Glen, my 12 year old, had a dental 2 weeks ago and they took out 13 teeth! He broke a tooth a while ago and one just fell out so he doesn't have a bunch left!

He is also diabetic and currently in remission. I've been giving him canned but he and is brother like Red Kat Blue Dog best. He does like freeze dried fed dry and I have been giving a bit of that while I transition his brother completely to raw/canned.

I am just wondering if it's still possible to feed the RKBD with so few teeth left? There are little chunks of bone in there so don't want to hurt his mouth.

I'd probably recommend going with a boneless raw both because with an older cat CKD is always a concern so that'll help with phos levels and less chewing involved. Something like Rad Cat would be good, or you could use something like EZcomplete and make your own raw. 

Unfortunately we don't have Rad Cat here.