I am wearing Invisalign for 1,5 months now. When I had my appointment with an orthodontist, I was carefully examined. No red flags or warnings were raised by the orthodontist. This morning after biting a cookie, my front top tooth broke at the gum and fell out. That tooth was treated several times and had root canal removed. I am 100% confident that it happened due to the teeth movement caused by the Invisalign aligners. Nobody warned that this could happen. What should I do next, please advise