How to Deal with a Lost Invisalign Aligner

March 6, 2026

Man in black shirt holding an Invisalign aligner

Unlike traditional braces, Invisalign aligners are removable. On the one hand, this is a major advantage that will allow you to enjoy all of your favorite foods without restriction throughout the orthodontic process. But on the other hand, it also opens up the possibility that you might end up losing one of your aligners at some point. Below is an overview of how to deal with this situation, as well as the steps you can take to prevent it from happening in the first place.

What Should You Do If You Lose an Aligner?

When you realize that your aligner is missing, remain calm and retrace your steps. You may be able to find it simply by checking the places you’ve been to. Don’t leave any stone unturned; it’s not unheard of for aligners to wind up in the trash or between couch cushions.

If you can’t find your aligner, your next step should be to reach out to your dentist. They’ll be able to advise you on what you should do next based on where you are in your treatment plan. For example, if you were almost due to start wearing a new aligner, it may be alright for you to make the switch a little earlier than planned. In other cases, you might need to wear a previous aligner until your dentist can replace the one you lost.

How Can You Avoid Losing an Aligner?

You can minimize your chances of losing an aligner by practicing the following good habits:

Of course, even if you take all the right precautions, accidents can still happen. It’s a good idea to always save your previous aligners just in case something happens to your current ones.

Remember, losing an aligner can be stressful, but it’s not the end of the world. As long as you act quickly and follow the right steps, you should be able to resolve the issue and stay on track toward a straighter smile.

About the Author

Dr. Mohammad Golparvar has more than two decades of dental experience. He earned his dental degree at the Boston University School of Dental Medicine, which is also where he worked as an Assistant Clinical Professor. He is happy to be able to offer Invisalign as a solution for crooked, crowded, and unevenly spaced teeth. If you’re interested in starting an Invisalign treatment, you can schedule an appointment with Dr. Golparvar at Webster Dental Associates of Manchester by visiting his website or calling (603) 669-4252.