If your Invisalign aligner suddenly doesn’t fit (or never seemed to in the first place), you’re probably feeling frustrated. Many patients experience poor fit at some point during treatment, and while it can be exasperating, it’s usually fixable! Here are a few steps you can take to find out what might be going on and get your smile straightening back on track.
Step 1: Don’t Force It
If your aligner feels way too tight or won’t go on fully, don’t try to bite or press it into place with force. Doing so could damage the aligner or your teeth. A little snugness is normal at the start of a new tray, but it should still snap into place with moderate pressure.
Step 2: Check for Fit Issues
Take a look in the mirror. Is the aligner:
- Not covering one or more teeth all the way?
- Sitting unevenly or popping off in one area?
- Causing sharp discomfort even when seated?
If so, it’s likely not seating properly. Before you call your dentist, try the next step.
Step 3: Use Your Chewies
Invisalign “chewies” are small, rubbery tools that help seat your aligners fully. Just place one between your teeth and gently bite down for a few minutes, focusing on the problem area. Do this a few times a day, especially when putting your aligners back in after post-mealtime oral care. Many patients find this solves their issue in just a day or two!
Step 4: Check Your Wear Schedule
Skipping a day (or even just a few hours too often) can cause your teeth to shift slightly out of alignment. This makes it harder for the next tray to fit properly. If you’re switching trays early or wearing them inconsistently, your aligners might not “match” your teeth anymore.
Step 5: Call Your Dentist
If your aligner still doesn’t fit after using chewies and following your wear schedule closely, it’s time to check in with your dentist. They may recommend going back to your previous tray, adjusting your treatment timeline, or creating a new aligner to ensure you stay on track.
A bad fit doesn’t mean your treatment is ruined, but it does mean you should act quickly. Whether the fix is as simple as chewies or as involved as a new aligner, your dentist can guide you through the next step with ease.
About the Author
Dr. James Nelson is a skilled dentist who’s been helping Louisiana patients feel confident in their smiles since 2013. A graduate of the LSU School of Dentistry in New Orleans, he is certified in Invisalign and stays current through advanced training at the Spear Institute. He’s also a member of the American Dental Association and the Academy of General Dentistry. Call (504) 887-3311 to schedule a checkup and cleaning at Nelson Dental Care or visit our website to see a full menu of our services.