The northern breeds were fed once a day and usually not enough. The traits our dogs have now I believe about chewing everything comes from the fact that if it's laying on the ground I should try to eat it because it could be food. And if it's not food well neither is gum and most of us chew it. Get that dog something that he can work on with his teeth, helps boredom and makes him think he owns something. A small soup bone is great as it's something that will keep the dogs interest longer then a chunk of rope.
All vegetables are good for their teeth and vitamin.
It is a form of husky puppy play. Huskies again are a nordic arctic breed dog. Meant to live outside. Outside is their terrain. They chew trees,branches,rocks and any thing else.