What to do in an aligner emergency

Running into a problem with your aligners? Don't panic — most issues are straightforward to manage at home. Here's what to do for the most common aligner emergencies.

Lost aligner

What to do:

  • Wear your previous set of aligners to prevent your teeth from shifting back — do not leave your teeth without any aligner

  • Move on to the next set of your aligners, but wear it for double the duration

Cracked or broken aligner

What to do:

  • If the aligner is still wearable and not causing injury, continue wearing it

  • If it has a sharp edge that is cutting your cheek or tongue, remove it and wear your previous set

  • If the tray cannot be worn anymore, move on to the next set of aligners (but wear it for double the duration)

Aligner doesn't fit properly

What to do:

  • Do not force it — forcing an ill-fitting aligner can cause unwanted tooth movement

  • Check that you have the correct aligner for the correct arch (upper vs lower) and the correct number in the sequence

  • If you have been wearing the previous set for less time than prescribed, go back and wear it for the full recommended duration before moving on

  • If the aligner still doesn't fit after wearing the previous set correctly, contact your dentist - you may need a rescan or refinement

Attachments have fallen off

Attachments are small tooth-coloured bumps bonded to your teeth to help the aligners grip and move teeth more precisely.

What to do:

  • Do not panic — losing an attachment occasionally is not an emergency

  • Continue wearing your aligners as normal

  • Inform your dentist at your next appointment and they will replace it

  • If multiple attachments fall off, contact your dentist sooner as this may affect your treatment progress

Aligner causing significant pain or cutting your mouth

What to do:

  • Remove the aligner and check for any rough or sharp edges

  • Use a clean nail file to very gently smooth any rough edges on the aligner trim line

  • If the pain is severe or there is significant injury to your gum or cheek, contact your dentist

Forgot to wear aligners for several days

What to do:

  • Do not immediately jump to your next set — your teeth may have shifted back slightly

  • Go back to the previous set for a few days first to re-align your teeth

  • Contact your dentist if you are unsure — they will advise you on the best course of action

  • Try not to let this happen again — consistency is everything with aligner treatment!

💡 Dr Watt's tip: Always keep your previous set of aligners — never throw them away until you have successfully moved on to the next set. They are your safety net in case of any emergency! 😊

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