Clenching Teeth with Invisalign? What You Need to Know

Updated Feb 23, 2026

If you’ve started Invisalign aligners to straighten your teeth and suddenly noticed jaw soreness or tightness, you’re not alone. Teeth clenching and grinding—also known as bruxism—is incredibly common, especially during Invisalign treatment or clear aligner therapy.

In fact, studies estimate that “30 to 40 million Americans grind their teeth at night.” And many patients (myself included!) don’t even realize they’re clenchers until they start wearing aligners.

Clear aligners change the way your teeth and jaw naturally rest. With trays in place, your teeth can’t make direct contact, so if you're used to your teeth touching, your jaw may subconsciously work overtime trying to recreate that sensation.

🦷 “Teeth always want to touch teeth,” as one orthodontist once said. When they can’t, your jaw muscles can become fatigued, tight, and sore.

Yes. While both fall under the umbrella of bruxism, clenching and grinding are slightly different habits. 

• Clenching is when you tightly hold your teeth together under pressure, without moving them. 

• Grinding involves sliding or rubbing your teeth back and forth, often during sleep. 

Some people do one, some do both. Grinding tends to cause more visible tooth wear, while clenching often leads to jaw soreness, muscle fatigue, and tension headaches.

If you clench or grind, you might wonder whether clear aligners are still a good option for you. Let’s break it down:

✅ The Good News Clenching can actually help seat your aligners better, ensuring they fit snugly and shift your teeth efficiently. Aligners can also protect the teeth from wear caused by grinding during sleep. When comparing Invisalign and traditional braces, one key difference is that the smooth plastic of aligners acts like a night guard or barrier between your upper and lower teeth. 

❌ The Bad News Your jaw will probably feel sore, especially in the first few weeks of treatment or if you’re a chronic clencher.

In some cases, certain types of tooth movement, like shifting teeth back or closing larger gaps, can temporarily pressure the jaw joint (TMJ). For some, this may lead to mild discomfort or increased jaw tension.

However, TMJ symptoms during Invisalign are not common, and most patients do not experience issues. If you have a history of jaw sensitivity, it is always a good idea to mention it to your orthodontist so they can personalize your treatment and keep things comfortable.

If you’re experiencing pain or tightness, inform your dental provider during consultation. They will address this in your treatment plan. Here are a few easy techniques to reduce tension and give your jaw some relief:

Use your fingers to gently massage the jaw points just below your cheekbones. You can also try a gua sha stone or jaw roller.

A warm towel or heating pad can soothe tight muscles and encourage relaxation.

This tip came from a patient on the popular Invisalign SubReddit, and it’s genius. Repeat this phrase throughout the day to train your jaw to rest in a more relaxed position.

My coworker, a dental assistant and myofascial therapist, shared this tip with me: Place your tongue on the roof of your mouth to help naturally separate your teeth and reduce clenching.

Reducing stress, like meditation, exercise, or even deep breathing, helps relax your muscles, including the ones in your jaw. It also lowers the chances of involuntary clenching.

When you begin wearing aligners or switch to a new set, many orthodontists suggest using a chewie to help seat them properly. You may already know us from our original PUL Tool aligner remover, but we also offer a 2-in-1 version that includes a built-in chew tool for added convenience. Our chew tool helps eliminate air gaps between the aligners and your teeth by allowing you to gently bite down and seat them more securely. 

Aligner chew tools are small, soft, cylindrical pieces of plastic that you bite down on for about a minute to help the aligners fit more snugly. While they typically don't prevent nighttime teeth grinding, they can help reduce jaw clenching that some patients experience at the start of their aligner treatment.

💡 Fun Trick: 
Struggling with tongue posture? Try holding a Lifesaver candy behind your upper front teeth for 20–30 seconds. Your tongue will naturally want to fit inside the hole, which helps train it to rest in the proper position. Plus, it’s a sweet little reward!

I didn’t realize I was a clencher until I started seeing craze lines on my teeth—tiny vertical lines that appear from stress or trauma. My orthodontist pointed them out and explained that they were signs of consistent teeth clenching over time. 

When you're finally done with Invisalign treatment (🎉 congrats!), clenching can still be a habit that sticks around.

One option worth exploring is asking your dentist about a Hawley retainer with a small ring. It works similarly to the Lifesaver trick by encouraging tongue posture and keeping your jaw relaxed. For some patients, it can be a game-changer.

Whether you’re grinding, clenching, or just feeling discomfort—talk to your orthodontist or general dentist. Even if you don’t follow every suggestion, having that conversation gives you more context and control over your oral health. Ask your dentist about aligner accessories that can make treatment more comfortable and manageable day-to-day.

Bruxism can be annoying, painful, and confusing—but it’s manageable with a few small changes and the right support. Don’t stress if your jaw is feeling the effects of aligner therapy. You’re not alone, and with the tips above, you’re already on the right track with Invisalign.

We’d love to hear them—and your journey! Tag us on social @pultool and share your experience with us.

Happy PULing!

Editorial Policy 

At PUL Dental, our goal is to provide clear, reliable, and helpful information to patients and dental professionals navigating the world of clear aligner treatment. All content on our blog is written by our cofounder, a Registered Dental Assistant with over a decade of experience in the dental field and a specialized background in adult orthodontics.

Drawing from years of hands-on clinical experience and patient interaction, we aim to create content that reflects real-world insights, clinical knowledge, and practical solutions.

Every article is:

• Written with firsthand experience from working directly with patients undergoing clear aligner therapy.

• Focused on accuracy and relevance to current orthodontic practices and patient needs.

• Transparent about our perspective, including when we share insights about products we've developed, such as the Original PULTOOL.

As our content team grows, we plan to expand our editorial process to include additional contributors, expert reviewers, and peer collaboration to further enhance the depth and quality of the information we provide.

We are committed to earning and keeping your trust by continuing to publish content that is accurate, patient-centered, and informed by real clinical experience.