Will Invisalign Affect the Way I Speak?

September 2, 2025

Invisalign clear aligner.

If you’re considering Invisalign, you’re probably excited about the idea of straightening your teeth without bulky metal braces. The clear aligners are comfortable, removable, and nearly invisible—but many patients have one lingering concern: Will Invisalign affect the way I speak?

The short answer is that Invisalign may cause minor, temporary changes in your speech when you first start wearing your aligners, but most people adjust quickly—often within just a few days. Here’s what to expect and how to make the adjustment period as smooth as possible.

Why Invisalign Might Affect Your Speech Initially

When you first put in your aligners, your mouth has to adapt to the thin layer of plastic covering your teeth. This can slightly change how your tongue touches the roof of your mouth and the back of your teeth when forming certain sounds.

Some people experience a mild lisp, particularly when pronouncing “s,” “sh,” or “z” sounds. This happens because the aligners create a small barrier that temporarily alters airflow and tongue placement.

It’s important to remember that this is completely normal and expected. Your tongue and mouth muscles are incredibly adaptable—they just need a short time to learn how to move naturally again with the aligners in place.

How Long Does It Take to Adjust?

For most patients, speech changes last only a few days to a week. As you wear your aligners more consistently, your tongue quickly learns to compensate for the new shape of your mouth. The more you practice speaking while wearing them, the faster your speech returns to normal.

If you remove your aligners frequently to “avoid” the lisp, you actually slow down your adjustment period—and potentially delay your treatment progress. Invisalign should be worn 20 to 22 hours per day for the best results, so keeping them in and speaking with them on is the fastest way to adapt.

Tips for Speaking Clearly with Invisalign

Practice Speaking Out Loud

Reading aloud, singing, or having casual conversations helps your tongue adjust faster. The more you talk with your aligners in, the more natural it will feel.

Stay Hydrated

Dry mouth can make speaking feel awkward. Drinking water frequently keeps your aligners lubricated and prevents your tongue from sticking to them.

Slow Down Your Speech

If you notice a slight lisp, take your time when speaking. Enunciating your words clearly helps your mouth adjust to the aligners more efficiently.

Avoid Removing Aligners Unnecessarily

The temptation to take them out while talking is understandable, but this can interfere with both your treatment schedule and your adjustment process.

Check for a Proper Fit

If your aligners feel unusually tight or uncomfortable, let your dentist or orthodontist know. Ill-fitting trays can cause more noticeable speech issues and may need adjustment.

While Invisalign may slightly affect your speech at first, the change is minor and temporary. Within a few days, most patients speak clearly and confidently again. The key is patience, consistent wear, and a little practice.

About the Practice

Are you looking for a clear solution to a straighter, healthier smile? At Serenity Orthodontics, we can fix crooked, crowded, gaps, or a misaligned bite with Invisalign clear aligners, all without the cumbersome addition of metal brackets and wires. We custom design aligners for each patient, and can often straighten teeth faster than traditional braces can. Let us begin your journey to improved oral health. Schedule an appointment online or call one of our conveniently located offices in your area.