Aligner Durability: What to Do If Your Aligners Crack or Break
Don't let a broken aligner stress you out! Understand why it happens, how to prevent it, and what steps to take for a smooth treatment.
Clear aligners are designed for strength, but they're not indestructible. If you find yourself with a cracked or broken aligner, don't panic. This guide covers common causes, prevention tips, and what to do next to keep your smile journey on track.
🧩 1. Yes, Aligners Can Crack—Here’s Why
While aligners from providers like NewSmile are built to be durable, certain situations can lead to a **broken aligner** or a small fracture.
Common causes include:
- Taking them out too forcefully (especially from the front)
- Biting down on hard foods while wearing them
- Grinding or clenching your teeth at night
- Improper storage (like tossing them into your bag without a case)

💬 Remember: Clear aligners are medical-grade plastic—not steel. Treat them gently and they’ll last the 1–2 weeks they’re meant for.
💪 2. How to Protect Your Aligner’s Durability
A few daily habits can go a long way in keeping your aligners in good shape:
Smart aligner care tips:
- Always remove from the back first to reduce stress on the plastic
- Store aligners in their protective case when not in use
- Avoid biting down on them intentionally—use chewies instead
- Don’t expose them to hot water which can warp or weaken them
🌟 NewSmile aligners are laser-trimmed for comfort and strength—but even the best aligners need mindful handling.
🛠 3. What to Do If Your Aligner Cracks or Breaks
Not all damage means you need to panic. Here's what to do if you discover a crack:
If it's a hairline crack:
- You can usually continue wearing it as long as it still fits snugly and isn’t painful.
If it’s fully broken or loose:
- Switch to your next set of aligners if you're near the end of your current wear schedule.
- If it’s too early to switch, wear your previous set to maintain your progress.
- Contact your provider for next steps or a replacement aligner.
📞 NewSmile’s support team is always here to guide you through damaged tray concerns—whether that’s replacing your aligner or adjusting your wear plan.
⏩ 4. When Damage Delays Treatment (and How to Avoid It)
Leaving a broken aligner in place for too long can lead to issues like:
- Poor tracking of your teeth
- Delayed treatment timelines
- Sore spots from uneven pressure
To avoid setbacks:
- Check aligners daily for cracks
- Don’t delay reporting damage
- Keep all your past aligners until your treatment is complete—they’re your backup!
✅ Pro tip: Many NewSmile customers keep their most recent set just in case they need to backtrack due to a broken aligner. It’s always smart to stay one step ahead.
✨ Final Thought
Yes, aligners can crack or break—but it doesn’t have to derail your smile journey. With proper care, daily awareness, and a little help from NewSmile when needed, you’ll stay on track to a straighter, more confident smile.
🦷 Your aligners are built for transformation. Treat them with care, and they’ll take your smile exactly where it needs to go.