I find that if dogs aren't used to real meat, then they sometimes have to be taught that it's food. :(
I freeze the wings first and then I hold one end, waving it around to encourage them to eat it, hanging on to the end so that if they are enthusiastic, they don't swallow it whole. I would just feed one every other day until those pesky teeth are gone. :) My toy breed eats a raw wing about twice a week now. She has a better mouth than normal for her breed and her teeth are sparkling while other exhibitors struggle to clean their dogs' tiny teeth. :)
Advise about natural feeding can be found here
http://www.ukbarfclub.co.uk/about-barf-feeding/what-is-a-barf-diet.php