Life After Treatment

Getting used to speaking with fixed teeth

As your tongue gets used to the new surface, some sounds change: most settle on their own, some need an adjustment

It is common for your voice to sound different to you the first time you speak with your new teeth. Your tongue has spent years working against surfaces that have now changed. On this page we set out which sounds are affected, how to speed up getting used to them, and which speech problems will not settle on their own and need an adjustment at the clinic, because mixing the two up means waiting months for something that should have been fixed.

Short answer

Most speech sounds are produced at the points where the tongue touches the front teeth and the palate. When these surfaces change, the tongue goes to the wrong point out of habit, and sounds such as s, sh, z, f, v, t and d in particular come out differently. In most patients the tongue learns the new points within a few days to a few weeks. Reading aloud shortens this time. An s that comes out like a whistle, or a persistent lisp, needs an adjustment and will not settle by waiting.

Sounds affected most: s, sh, z; then f, v, t, d
Time to adjust: A few days to a few weeks for most patients
Most effective exercise: Reading aloud a few times a day
Signs needing an adjustment: A whistling s, a persistent lisp, the tongue catching on an edge

Medically reviewed by Bilge Ilgın, Dentist · ImplantologyLast reviewed 2026-09-06

Why the sounds change

Speech is formed by shaping the air coming from your lungs inside your mouth, and most of this shaping happens where the tongue touches specific points. For s and sh sounds, the tongue forms a narrow channel just behind the front teeth; for f and v, the lower lip touches the edge of the upper front teeth; for t and d, the tip of the tongue strikes the area just above the gum. All of these points depend on the shape of the teeth and the palate.

A new fixed bridge changes this map. The length, thickness and relative position of the teeth, and the thickness of the bridge on the side facing the palate, form a new surface. Your tongue, however, has worked to the old map for years; in the first few days it goes to the old point and does not find it. The result is that the sound comes out slightly different. This does not mean the teeth are wrong; it means the tongue has not yet learned.

In patients who have worn a removable denture for a long time, the picture is often surprising in the opposite direction. Because a fixed bridge does not cover the palate, those patients often speak more comfortably from day one; opening up the palate both lets the sound resonate more naturally and ends the catching caused by a moving denture. That said, opening the palate is also a change, and it takes a few days to get used to.

The sound group most often affected is the whistling sounds: s, sh and z. For these sounds, air passes through a narrow gap between the tongue and the front teeth. If the gap is narrower than it should be, the sound comes out like a whistle; if it is wider, it sounds like a lisp. Because these three sounds are used so often, even a small difference can feel significant to the patient.

The second group is f and v. For these sounds, the lower lip touches the edge of the upper front teeth. If the length or forward position of the front teeth has changed, the lip touches a different point and the sound changes. This also carries useful information: where the lip touches the teeth while producing an f sound is a clinical marker of whether the length of the teeth is correct.

The practical way to tell the two apart is this: if it is easing over time, it is part of getting used to things; if it stays the same or comes out the same way every time, it is about the design. For the first group, the thing to do is keep speaking; for the second, the thing to do is book an appointment. Speech is also tested during the try-ins on day 2; a problem noticed there goes into the final teeth already corrected, so it is especially valuable to mention it early.

Problems that settle on their own, and those that do not

This distinction prevents both needless worry and needless waiting.

The tooth can be saved

General strangeness in the first daysYour voice sounding different to you, words feeling too big in your mouth, and your tongue not finding its place. These belong to the period of getting used to things and ease off noticeably within days for most patients.
S and sh difficulty that keeps easingNoticeable on day 1, less on day 3, and very slight by the end of the first week. This pattern shows the tongue is learning. Reading aloud speeds this process up.
Speech getting worse with tirednessIt is normal for speech to feel slightly harder by the end of the day; the tongue muscles are also getting used to a new routine. A dip that improves after rest belongs to the settling-in period.
First-day surprise in patients coming from a removable dentureOpening up the palate changes how your voice resonates, and your own voice sounds different to you. For most patients this settles within a few days and is usually a welcome change.

Saving it is unlikely to hold

An s that comes out like a whistleIf air passing through a narrow gap produces a sharp whistle, this is a design matter. It is corrected with an adjustment and will not settle by waiting. It is best noticed early and mentioned at the first check-up.
A persistent lisp that does not easeIf the tongue sits at the wrong angle against the front teeth or the palate, the sound comes out with a lisp and does not settle over time. The thickness of the bridge on the palate side and the position of the teeth need to be assessed.
The tongue catching on one point, or a sore formingThe tongue repeatedly rubbing the same spot while speaking, with tenderness developing there, points to a sharp or overly prominent edge. This is resolved with a quick adjustment and should not be left.
Air escaping while you speakIf you hear a whistling escape of air between words, there may be a gap or mismatch in the bridge. This finding is also assessed separately, as it can point to an area that cannot be cleaned.

How to speed up getting used to it

The steps below are simple and effective. The common logic is this: the tongue learns the new map only by using it, not by staying silent.

1
Read aloud a few times a day
Three ten-minute sessions work better than one hour-long session. A newspaper, a book or any text on your phone will do. Hearing your own voice lets your tongue get feedback; reading silently does not do the same job.
2
Practise the sounds you find difficult on their own
Say words containing plenty of s, sh and z sounds one after another. Start slowly and exaggerated, then move back to normal speed.
3
Practise in front of a mirror
Seeing what your lip and tongue are doing speeds up learning. It particularly helps to see where your lower lip touches your teeth for f and v sounds.
4
Record yourself
Make a short recording on your phone and repeat it a few days later. This comparison is the clearest way to see whether you are on the settling-in track; your own ear does not notice day-to-day change.
5
Do not let your mouth dry out
In a dry mouth the tongue catches on the surface and speech becomes harder. Drink water through the day; if you take medicine that causes dry mouth, tell your dentist, as it makes a noticeable difference here.
6
Always mention what you notice at a try-in or check-up
Any speech issue you mention during the try-ins on day 2 goes into the design of the final teeth. If you notice a problem after the final teeth are fitted, mention it at the check-ups carried out according to the clinic's follow-up plan; a problem raised early is easier to correct.

What can be corrected at the clinic

Most speech-related problems are resolved with small adjustments. Below are the things that can be done.

Thinning the surface on the palate side

If the tongue-facing surface of the bridge is too thick, the tongue cannot form the right channel. Carefully thinning this surface brings a noticeable improvement in whistling sounds.

Adjusting the position of the front teeth

Where the lower lip touches for f and v sounds relates to the length and forward position of the front teeth. This position is tested during the try-ins on day 2 and carried through correctly into the final teeth.

Smoothing sharp edges

An edge the tongue catches on or that causes a sore is resolved with a quick adjustment. This is the simplest procedure that improves both comfort and speech at the same time.

Closing gaps

If you hear an escape of air while speaking, there may be a gap in the bridge. This gap is also assessed separately, as it can mean an area that cannot be cleaned.

Addressing dry mouth

If your mouth is dry, whether from medication or another cause, speech becomes harder. This is not related to the bridge itself but directly affects the result, and it should be discussed separately.

Mistakes made during this period

The following are well-intentioned habits that actually slow down getting used to things.

Avoiding speaking

The most common mistake, and the one that slows things down the most. The tongue learns the new map only by using it. A quiet week does not speed up getting used to it; it delays it.

Treating every difference as a fault

Most of the strangeness in the first few days belongs to the settling-in period and eases off. An urgent request for an adjustment at this stage can lead to unnecessary changes to a system that has not yet settled.

Waiting on a problem that stays the same

The opposite is also true. An s that comes out like a whistle, or a lisp that does not ease, will not settle by waiting. Mentioned at a check-up, it is usually corrected with a small adjustment.

Judging a speech difficulty on its own

A change in speech is sometimes related to the bite or how the bridge is sitting. This is why, when describing the issue, it helps to also mention chewing, biting and any discomfort; the clues make more sense together.

What to expect

The sequence below is how things go for most patients; it can shift by a few days from person to person.

The first few days
Your voice sounds different to you, you stumble over certain words, and your tongue searches for its place. The best remedy for this period is to keep speaking. Reading aloud should start in these first days.
The first week
Most patients see noticeable improvement. The sounds you found difficult ease off and fluency comes back. If the same sounds are still breaking down the same way by the end of this week, note it and raise it at a check-up.
The first month
Speech returns to normal and the tongue has learned the new map. Any remaining speech-related concern is assessed at a check-up; a small adjustment is usually enough.
At later check-ups
The teeth fixed on day 3 are your final teeth; because no new bridge is fitted in their place months later, you do not go through a second period of getting used to things. If a small bite or edge adjustment is made at a check-up, it does not reset the map your tongue has learned.

Message us right away if

No improvement after a week. A speech difficulty that is not easing does not belong to the settling-in period. It needs to be assessed; the fix is usually a small adjustment.
Your s sounds like a whistle. This is a sign of a narrow air channel and does not settle on its own. It matters that it is mentioned early; a small correction on the palate side of the bridge usually resolves it.
A sore or ongoing tenderness on your tongue. This means an edge is rubbing against your tongue. It is resolved with a quick adjustment, and if left, the sore can turn into a lasting problem.
You feel movement in the bridge while speaking. This is no longer a speech issue. A fixed bridge should not move; the movement you feel can be an early sign of a loose screw and needs early attention.

The cost of this issue

Speech-related corrections are usually part of the treatment and do not form a separate item. There are still a few things that decide the scope:

The problem being mentioned at a try-in: A speech problem mentioned during the try-ins on day 2 goes into the design of the final teeth. Small problems noticed after the final teeth are fitted are also handled with an adjustment at check-ups.
The scope of the correction: Smoothing an edge and small thinning are quick procedures. If the position of the front teeth needs to change, this can mean redesigning the bridge.
Whether check-ups are included: Whether post-fitting adjustments are included should be in writing before treatment. These adjustments are a natural part of the process, not an extra request.
If speech therapy is needed: Very rarely, in patients who have gone a long time without teeth, getting used to things can take longer. In this case, support from a speech therapist may be considered, and this is treated as a separate service.

Frequently asked questions

How long before my speech returns to normal?

For most patients, a few days to a few weeks. What matters most is how much you speak: patients who read aloud regularly see the time shorten noticeably. If there is no improvement after a week, this is no longer the settling-in period and should be assessed.

I have a lisp. Will it settle?

If it is easing over time, it will settle; if it comes out the same way every time, it will not, and needs an adjustment. The cause is usually the thickness of the bridge on the palate side or the position of the front teeth. Both can be corrected.

My s sounds like a whistle. Is that normal?

It can happen temporarily during the settling-in period, but if it continues, it is not normal. It means air is passing through a gap that is narrower than it should be between the tongue and the teeth. This is resolved with an adjustment and should be mentioned at your first check-ups.

I also found it hard to speak with a denture. Will this be better?

Most likely, yes. A fixed bridge does not cover the palate and does not move; those were the two main causes of the speech difficulty with a removable denture. Most patients say their speech is noticeably more comfortable after the switch.

Will I have to get used to it all over again once I reach the final teeth?

There is no such switch. The fixed teeth fitted on day 3 are your final teeth; no new bridge is fitted in their place months later, so the surface you got used to stays the same. If a small bite or edge adjustment is made at a check-up, it does not reset the map your tongue has learned.

Do the people around me notice?

They may notice in the first few days, and usually not after that. Interestingly, the difference patients hear in their own ear is almost always bigger than what others hear. Recording and listening to yourself is the best way to see this difference.

Can I sing or give a presentation?

Yes, but it makes sense not to plan an important presentation in the first few days. Your voice settling completely into place can take a few weeks. For patients who use their voice professionally, this is worth discussing from the outset when planning the treatment timetable.

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