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My Invisalign Aligner Doesn’t Fit…What Should I Do?

October 27, 2023

dental assistant looking at Invisalign tray with male patient

For decades, Invisalign has offered people an easier and more subtle way to straighten their teeth. While it has helped tens of millions of patients achieve stunning results, just like with any other long-term dental treatment, there can sometimes be bumps along the way. If you suddenly find that one of your Invisalign trays isn’t fitting properly, what should you do? Do you need to go see your dentist right away? Fortunately, there are a few things you can do right now that can solve the problem well before you need to pick up the phone.

Let’s Start Simple…

Most of the time, people encounter a tray that won’t fit when they are supposed to switch to the next set in their series. Their teeth have adapted to the old trays and aren’t exactly aligned with the new ones.

So, while you might be used to your old trays slipping on and off easily, you might have to use a little more effort for the first few days with new ones. Try pressing a little harder (within reason!) to see if this helps. You might feel a little soreness in your teeth and gums initially, but this just means everything is working (and it will dissipate in a day or two).

Are You On Schedule?

Typically, a patient is asked to switch trays every two weeks. This sounds simple on the surface, but many patients don’t keep track of this and end up trying to put in their new trays too early before their teeth are ready. Check your calendar…are you sticking to the right schedule? If not, stay with your old trays until the time is right.

Chewies Are Your Friend

Chewies are little plastic-rubber items that you can literally chew with your Invisalign trays in to help them snap into place. They are easy to find online and are very affordable. Simply place your trays over your teeth, and then use the chewies to properly seat them.

Reach Out to Your Dentist

If none of the above worked, then it’s time to contact your dentist and let them know there is a problem. They might advise you to wear your old trays a little longer than normal to give your teeth more time to move. If you’re still having fitting issues after that, then they may ask you to come in so they can take a close look at your teeth.

While Invisalign treatment is very exacting, the teeth don’t always move as expected. Your treatment plan may need to be changed, which could involve adding some additional trays in between the ones you already have. Don’t worry—the cost of your treatment already covers these refinements.

Basically, an ill-fitting tray is certainly annoying, but it’s not a serious problem. See if these DIY solutions work first, and if not, don’t hesitate to call your dentist. They’ll be able to let you know what’s going on and get you back on track toward your new smile to avoid any serious delays.

About the Author

Dr. Allan Mohr is an award-winning cosmetic dentist who has served the Massapequa area for over three decades. He is widely considered to be one of the most accomplished and respected dentists in the U.S., and he has helped countless patients achieve stellar smiles using Invisalign. If you’re unhappy with your teeth because of crookedness or gaps, Dr. Mohr and his “dream team” of local specialists are ready to help, and you can schedule a consultation by contacting him today.

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