How Dentures Affect the Way You Speak (And How to Fix It)

If you’re considering dentures or have recently had a new set fitted, one of the first questions that usually comes up is this: “Will I still be able to speak properly?” It’s a fair concern.

Your voice is part of who you are, and nobody wants to feel self-conscious about the way they sound. At The Swissedent Denture Clinic, based here in the UK, we work with patients every day who are going through this exact transition.

The good news is that while dentures can affect speech initially, with the right design, clinical approach, and guidance, your speech can return to normal very quickly. In many cases, patients end up speaking more clearly than they did before. Let’s break down why dentures affect speech, what’s really going on in your mouth, and most importantly, what we do to get you speaking confidently again.

Why Do Dentures Affect Speech in the First Place?
Speech is a highly coordinated process. It’s not just your lips moving. Your tongue, teeth, palate, airflow, and even your muscle memory all work together to produce sound.

When you introduce a denture, especially an upper denture, you are changing the shape of the inside of your mouth. That means your tongue suddenly has a new surface to work with.

Here’s what changes:
• The palate (roof of your mouth) is now covered by the denture
• The position of your teeth may be different from before
• The thickness of the denture base slightly reduces space for your tongue
• Your tongue has to relearn where to go to produce certain sounds
This is why some sounds feel different at first. Words with “S”, “F”, “TH”, and “V” are usually the ones people notice most.

It’s not that you’ve “lost” your ability to speak. It’s simply that your tongue is adjusting to a new environment.

The Role of the Tongue 
Many people assume dentures themselves are the main issue, but in reality, your tongue is doing most of the work when it comes to speech.

Think of your tongue like a highly trained athlete. It’s spent years learning exactly where to go in your mouth to produce clear sounds. When you change the playing field, even slightly, it needs a bit of time to adapt.

This is particularly noticeable with upper dentures because they cover the palate, which is one of the key contact points for the tongue during speech.

Once your tongue relearns these positions, speech becomes natural again. This is why adaptation is not only expected, but completely normal.

What We Do at Swissedent to Get Speech Right
This is where clinical expertise makes all the difference. Not all dentures are created equal, and speech is something we actively design for, not leave to chance.

At The Swissedent Denture Clinic, we focus on several key factors during the denture design process:
• Tooth positioning – The placement of your teeth is critical. If teeth are too far forward, too far back, too high, or too low, it can distort speech sounds. We carefully position teeth to support natural phonetics.
• Denture thickness – The thickness of the denture, especially in the palate area, must be controlled. Too thick and it restricts tongue movement. Too thin and it can compromise strength and fit. We find the correct balance for both comfort and speech.
• Bite relationship – The way your upper and lower teeth meet affects how air flows when you speak. This directly impacts clarity.
• Lip and facial support – Your lips play a big role in forming sounds. Proper support ensures words are shaped correctly.
• Phonetic testing – This is a key part of what we do. During your appointments, we will ask you to say certain words and sounds. This allows us to assess and fine-tune your denture before it is finalised.

This level of attention to detail is what separates a standard denture from one that truly works with your speech, not against it.

Phonetics Testing 
One of the most important steps in creating a successful denture is phonetic testing.
This simply means we listen to how you speak during the fitting process. We’re paying attention to how sounds are formed and whether anything is slightly off.

For example:
• “S” sounds help us check tooth position and airflow
• “F” and “V” sounds help assess the relationship between your upper teeth and lower lip
• “TH” sounds help evaluate tongue placement
If something doesn’t sound quite right, we adjust. It’s a collaborative process, and your feedback is incredibly valuable.
We don’t just hand you a denture and hope for the best. We actively design it around how you speak.

Say the numbers 50 - 60
After your new denture is fitted, we give all our patients a very simple but highly effective exercise.

We ask you to repeat the numbers 50 to 60 once a day, for a minimum of two weeks.

It might sound basic, but there’s a very good reason behind it.

These numbers force your tongue to move in multiple directions and make contact with different areas of your mouth. This helps retrain your tongue quickly and efficiently.

Here’s what it does:
• Encourages natural tongue movement
• Helps your tongue adapt to the new palate
• Improves clarity of speech faster
• Builds confidence when speaking

It’s particularly useful for upper dentures, where the palate coverage changes how your tongue interacts with the roof of your mouth.

Most patients notice improvement within days when they do this consistently.

What You Can Expect in the First Few Days
It’s completely normal to experience some minor changes in speech at the beginning.

You might notice:
• A slight lisp on certain words
• Feeling like your tongue doesn’t quite know where to go
• Being more aware of your denture when speaking
This is temporary.

Your brain and tongue are incredibly adaptable. With a well-made denture and a bit of practice, most patients settle in very quickly.

In fact, many patients tell us they feel more confident speaking after treatment because their teeth are now properly aligned and supported.

When to Seek Help
While some adjustment is normal, speech should improve steadily.

If you feel like something isn’t quite right after a short period, it’s important to come back and see us. Small adjustments can make a big difference.

At Swissedent, we always encourage follow-ups because fine-tuning is part of the process.

We would much rather make a minor adjustment early than have you struggle unnecessarily.

Our Experience Matters
As Clinical Dental Technicians, we don’t just make dentures in a lab. We work directly with patients, assess speech in real time, and design dentures with function in mind.

This hands-on clinical approach is what allows us to deliver natural results, not just something that “fits”.

Every denture we create is tailored to the individual, because no two mouths, and no two voices, are the same.

You Will Speak Normally Again
If you’re worried about how dentures will affect your speech, the most important thing to know is this:
It’s temporary, it’s manageable, and with the right approach, it’s completely correctable.
With proper denture design, careful phonetic assessment, and simple exercises like the 50 to 60 technique, your speech will return to normal, often quicker than you expect.

At The Swissedent Denture Clinic, we’re here to guide you through that process step by step, making sure you don’t just smile confidently, but speak confidently too.

If you have any concerns about dentures, speech, or anything else, we’re always happy to help.

📞: 0203 489 2055 or 0208 520 8528 
📧 : [email protected]
📍: 25a St James Street, London, Walthamstow,  E17 7PJ