What should I do if my clear aligner cracks or breaks?Updated a month ago

Quick Answer: 🧩 Yes, clear aligners can crack or break. When it happens, don’t panic—most issues can be handled quickly by switching trays or contacting your provider.

“I thought a small crack meant my treatment was ruined. Turns out, it was an easy fix.”

🧩 Why Aligners Crack or Break

Clear aligners are designed to be durable—but they’re still medical-grade plastic. Daily habits can put stress on the material, especially during removal or wear.

✔ Removing aligners too forcefully from the front

✔ Biting down on hard foods while wearing trays

✔ Nighttime grinding or clenching

✔ Tossing aligners into a bag without a case

Most cracks happen gradually, which is why regular inspection matters.

💪 How to Protect Aligner Durability

A few simple habits can dramatically reduce the risk of damage.

✔ Remove aligners from the back molars first with two fingers (one for each side)

✔ Store them in a protective case when not in use, away from pets

✔ Do not bite your aligners in place, use chewies instead

✔ Avoid drinking hot water with your aligners on, this can weaken plastic

💡 Pro Tip: Aligners are meant to last 2 weeks per set. Gentle handling helps them do exactly that.

🛠️ What to Do If Your Aligner Cracks

Not all damage requires the same response. What you do next depends on the severity.

Hairline crack

✔ Best to stop wearing your aligner or retainer since its integrity has been compromised

✔ Skip to your next step, and make up for lost time i.e. you crack your aligner #5, and have 8 days left of wear time. Move on to aligner #6 and wear for 14 days (as directed) + 8 days missed by aligner #5. Aligner #6 is worn for a total of 22 days.

✔ If your retainer is your last step, wear your retainer for 22 hours a day for the first 6 months, then during evenings as directed.

Fully broken or loose aligner

✔ Switch to your next set if you’re near your change date

✔ Otherwise, wear your previous aligner to maintain progress

✔ Contact your provider for guidance or a replacement

⚠️ Important: Wearing a broken aligner too long can cause poor tracking or sore spots.

⏳ When Damage Can Delay Treatment

Ignoring cracked aligners may lead to setbacks such as:

✔ Teeth not tracking as planned

✔ Longer treatment timelines

✔ Uneven pressure and discomfort

Keeping your previous aligners until treatment ends gives you a built-in backup if damage occurs.

💭 Final Thoughts

Aligner damage is frustrating—but it’s rarely a deal-breaker. With quick action, good habits, and proper support, your treatment can stay right on track.

Handle aligners gently, check them daily, and remember: most cracks are fixable without losing progress. 😌

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