Key Takeaways

• Clear aligners are NOT protective mouthguards—they should be removed before playing contact sports. Learn more
• Sports activities pose significant risks to dental health, and up to 31% of orofacial injuries stem from sports. Learn more
• Mouthguards reduce the chance of dental injuries by 5.55 times and make athletes 82-93% less likely to suffer traumatic dental injuries. Learn more
• For high-contact sports like rugby or football, always remove aligners and wear a custom-fitted mouthguard. Learn more
• "Boil and bite" mouthguards are recommended during aligner treatment as they can be reshaped monthly to accommodate moving teeth. Learn more

Why Wear a Mouthguard?

Sports-related dental injuries are surprisingly common. Research indicates that up to 31% of orofacial injuries stem from sports activities, with traumatic dental injuries accounting for 50% of these cases. The most common injuries include tooth fractures, most commonly in the maxillary incisors (upper front teeth).

Yet some sports are riskier for your teeth than others—namely contact sports. Nearly 40% of rugby players experience dental injuries, while basketball players aren't far behind at 27%. These statistics highlight why protection is so important, and why dental associations worldwide, including the Australian Dental Association (ADA), actively encourage sports clubs to implement mandatory mouthguard policies.

That's because mouthguards are extremely effective. Studies show they reduce the chance of dental injuries by 5.55 times and make athletes 82-93% less likely to suffer traumatic dental injuries. The difference in injury rates is striking: only 7-8% of mouthguard wearers experience dental trauma compared to 48-60% of non-wearers.

What If You Have Clear Aligners?

While clear aligners like Linea are excellent for straightening teeth, they're designed for gentle, consistent pressure—not for absorbing impacts. This creates some unique considerations for athletes undergoing orthodontic treatment.

Clear aligners are made from premium medical-grade transparent plastic optimized for tooth movement, not protection. Wearing them during contact sports can create several risks:

• Aligner damage: The trays can crack or distort under impact, creating sharp edges or compromising their fit. Repairs typically require replacement, adding costs and potentially delaying your treatment.
• Increased injury potential: If an aligner shatters during impact, the fragments could lacerate soft tissue or become embedded in your gums.
• Treatment interruption: Lost or warped trays can set your progress back by 1-2 weeks while replacements are fabricated, potentially extending your total treatment time.

Perhaps most importantly, wearing aligners during sports means you're not getting the protection you need. Aligners simply aren't designed to absorb and distribute forces like a proper mouthguard.

Recommendations for Aligner Patients

Managing both clear aligner treatment and athletic activities requires some planning, but with the right approach, you can protect your smile without compromising your treatment progress. Here's what to do in different sporting situations:

High-Contact Sports (Rugby, Football, Boxing)

For sports with a significant risk of dental impact, the recommendation is clear: remove your aligners and wear a custom-fitted mouthguard instead. These sports have the highest dental injury rates, and proper protection is non-negotiable. Store your aligners in their protective case while you play, and put them back in as soon as you're done. This approach provides the best impact absorption while avoiding tray breakage.

Limited-Contact Sports (Basketball, Netball)

For sports with moderate contact, you have options. You can either remove your aligners and wear a mouthguard, or use a "braces-compatible" boil-and-bite guard that your dentist can trim to fit comfortably. This way, you can still wear your aligners for the recommended 20–22 hours per day while protecting your teeth while you play.

Non-Contact Sports (Running, Tennis)

During activities with minimal collision risk, you can usually keep your aligners in if they're comfortable. However, a slim boil-and-bite mouthguard adds insurance against unexpected falls or impacts.

Water Sports

Swimming, diving, and water polo present unique challenges. It's best to remove your aligners (so you don't lose them in the water) and store them in a ventilated case. If there's risk of collision, like in water polo, wear a stock or boil-and-bite mouthguard.

Practical Tips During Treatment

• Plan your sports activities to ensure you still meet the 20-22 hour daily wear requirement for your aligners.
• Rinse your mouthguard in lukewarm soapy water after play and store it in a ventilated case.
• Always brush your aligners before putting them in to avoid trapping bacteria against your teeth
• Schedule heavy-contact training in defined blocks so your daily aligner wear still reaches 20+ hours

Comparing Mouthguard Types for Aligner Wearers

Not all mouthguards are created equal, and your needs as a clear aligner patient are unique. So which type of mouthguard is best for you? Here's a breakdown of your options:

Custom-Fitted Mouthguards

Dentists create these mouthguards by making molds of your teeth, then using them to design your guard.

Best for: Rugby, football, hockey, and early aligner stages with multiple attachments

Boil-and-Bite Mouthguards

These are universal mouthguards available online or at certain big-box stores. When the mouthguard's material heats up, you can bite down on it to make an impression of your teeth. To reshape one of these, you just need to boil and bite it again.

Best for: Basketball, netball, cricket, and regular training sessions during aligner treatment.

Stock Mouthguards

These mouthguards aren't customized to your teeth at all. They provide impact and shock protection, but they won't be a perfect fit.

Best for: Emergency backups only

Which Should You Choose?

During your Linea treatment, "boil and bite" mouthguards are generally recommended, as they can be reshaped monthly to accommodate moving teeth. After completing treatment, investing in a custom-fitted mouthguard provides the best long-term protection for your newly straightened smile.

Sport-Specific Guidance for Aligner Wearers

Different sports carry different levels of risk, and your approach should vary accordingly. Here's a quick guide for popular sporting activities:

Sport	Injury Risk	Aligner Strategy	Mouthguard Recommendation
Rugby/Football	Very high	Remove aligners	Custom guard
Hockey	High	Remove aligners	Custom guard
Basketball, Netball	Moderate	Optional removal; guard essential if removed	Boil-and-bite braces guard
Tennis, Running, Cycling	Low	Aligners may stay in	Slim boil-and-bite or none
Swimming	Low (except water polo)	Remove aligners (risk of loss)	No guard or polo-specific custom

Final Thoughts

Balancing orthodontic treatment with an active lifestyle is entirely possible with some planning. Linea's approach to clear aligner treatment—combining hands-on care from a dentist with convenient remote monitoring—makes it easier for athletes to stay on track while pursuing their sporting passions.

If you're an active person considering clear aligners, discuss your sporting commitments during your initial consultation or with Linea's team when reviewing your treatment plan. They can create a treatment approach that accommodates your athletic schedule and ensures you have appropriate protection strategies in place. Remember that investing in your dental health today pays dividends for years to come. A straight, healthy smile is worth protecting, both during and after your clear aligner journey.