Problems with Puppy Teeth?

My dog is 4 months old and started to lose his puppy teeth. The only problem is he's been sleeping a lot and he wont eat much food. We feed him sold gold wolf king, some Merrick can food, and a little of pumpkin and ground beef heart. (he's well feed). I figured the dry food was to hard for his teeth, so I gave him only the can food and he ate more than usual. Is this normal for this to happen to puppies? Any suggestions on how to help the teething process beside teething rings etc.?

Problems with Puppy Teeth?
The wet food is richer than the dry food, while the wet food is easier for him to eat, it may have upset his stomach just a little bit. Try softening the dry food with a little bit of water before mixing it in with the wet. Other than that, yeah sounds completely normal.
Reply:Sounds normal to me.
Reply:Its normal. Probably not eating because his mouth is a little sore. I have pre-moistened the dry food just a little, or mixed in some cottage cheese to make it irresistable in the past. My puppies tended to go for it, and crunch their teeth right out. Looking at it on screen, it sounds a little mean, but if hes got teeth coming in, then the wet food should be fine :)
Reply:puppies seem to sleep alot and they eat what they want or until they get their full they know when the have had enough but if you are worried then take him to the vet to be on the safe side. sometimes it depends where they have lost their tooth and they might have a hard time chewing. Give him chew toys to chew on and teething ring and so forth. also give him puppy food that isnt as hard as dog food and he should be on puppy food anyhow. Try moistureing his food with water or broth or a little bit of milk to much can food isnt good for him and it could bound him up and he would have a hard time going poo
Reply:It's normal. Your puppy is not eating much because his gums are sore, common for teething puppies. You can get a puppy kong, freeze it and give it to your puppy to chew on. Frozen kong toy will help soothe his sore gums.