"Buy a new pair of shoes and a woodworks lathe." said an old man to me when I went about asking what and how should I prepare for my first dog (puppy). I said I can imagine why the shoes, but what's the lathe for? His prompt answer was "you see, it is not nice to walk barefoot to a shoes dealer; that's why you buy the new shoes now and hid them somewhere high up. And the woodworks lathe comes handy when you are constantly in need of new legs for your chairs and knobs for your drawers, it'll also become cheaper in the long run if you have your own lathe for the job."
The straight answer to your question is no, chewing can't be prevented.
- Chewing is normal at all ages of a dog.
- Excessive chewing is normal for a young puppy.
At that age it is quite normal for a dog to chew after chewing. It is for the new teeth coming up and the worst of the chewing will end soon enough. Just keep on feeding your dog with things to chew. Not only toys and such, but also chewing sticks and bones. Even an adult dog will occasionally like to chew something, but for a puppy it is a necessity. The odd thing is they don't like to chew just anything. There's your job to find out what he'll like to chew and what not. My family is lucky to have two dogs who won't chew our shoes, though they did chew almost anything.
You might use this in the training and socializing of your puppy. Use chewing sticks as reward for succesful obeying of "Here" command. After all, that's the most important command you'll need to drill into a dog's nerve system, so you might as well use such rewards that your puppy will value highly at the moment.
There is something I am not quite sure about, but I'd think it good that your dog is not drawing an equal mark between "I'm bored" and chewing. You should do good to make him associate chewing with play and training and fun and rewards from you. Later in life, when you are at work and your dog is home alone and gets bored in waiting for you to return - there is a chance he won't start chewing down your furniture if he doesn't connect boring and chewing.