I'm not an expert on hedgehog teeth, but has he been having problems eating solid food? In my experience, most hedgies won't eat soft food. (And by soft food I mean hard kibble that's been moistened... when Annabelle was sick and not eating I tried this with her, but she was having nooooone of it, haha.) And I don't know if dogs and cats are the same as hedgies in terms of their teeth, but I know that feeding cats and dogs wet food can actually be detrimental to their dental health and cause gum disease. Crunching on harder foods is good for their teeth though because it prevents tartar build up. I would keep him on dry food (unless he's having problems) and use wet food as an occasional treat, if he'll eat it.