The Marconi Dental Group doesn’t recommend gum chewing while wearing your aligner trays. Just as you will remove your Invisalign trays for eating, you’ll remove them for gum chewing as well. This means that if you have a multiple packs a day gum chewing habit, Invisalign may not work for you, since you need to wear it for 20 to 22 hours daily. Of course, ordinary braces don’t work with gum chewing at all.