When I had braces, I actually did this. Especially when the old thread was just replaced by a new/smaller thread. My teeth hurt pretty bad, so I didn't want to have to chew much.

I found it that microwaving frozen slices of bread with peanut butter and chocolate sprinkles made them come out so soft and warm that I didn't even really need to chew at all (as long as I finished it before it cooled down, because after a while it would become pretty tough and hard)