One of the best things about Invisalign trays is that they are hard to see, but that also makes them easy to lose! Should you misplace one of your aligner trays, you should reach out to us as soon as possible. To prevent your teeth from shifting too much, we usually recommend wearing the previous aligner tray or moving on to the next one. We may have to order a replacement aligner, though this is a rarity.
Remember, you should wear your aligners for 22 hours a day, and only remove them to brush and floss. Doing so decreases the likelihood of losing one.