Wearing Invisalign aligners may cause a slight and temporary lisp as your tongue adjusts. Most people adapt within days. This guide explains why it happens, how to reduce it, and when to seek help.
When starting Invisalign treatment, some people notice a slight lisp because the aligners change how the tongue moves. This temporary issue usually settles within a few days to two weeks. With practice, patience, and the right techniques, your speech becomes clear again. Invisalign remains one of the most discreet and comfortable orthodontic options.
What Are Invisalign Aligners?
Invisalign aligners are custom-made, clear trays that gradually move your teeth into better alignment. Made from SmartTrack plastic, they are comfortable, removable, and almost invisible, making them a modern alternative to metal braces.
Can I Go for Invisalign Treatment During Pregnancy?
Can Invisalign Aligners Cause a Lisp?
A slight lisp can appear when you first wear Invisalign because the trays change the space inside your mouth. This affects how your tongue touches your teeth when speaking. Most patients adapt within a few days to two weeks as the tongue learns new movement patterns.
Types of Lisps
- Dentalised lisp: Tongue pushes against front teeth.
- Lateral lisp: Air escapes over the sides of the tongue.
- Interdental lisp: Tongue moves between the teeth.
- Palatal lisp: Tongue presses against the roof of the mouth.
How Long Does Invisalign Take?
How to Manage a Lisp with Invisalign (Step-by-Step)
- Practise speaking daily, especially reading aloud.
- Use speech exercises and focus on slow, clear pronunciation.
- Wear the aligners consistently for 20–22 hours to adjust more quickly.
Additional Tips to Reduce Lisping
- Drink through a straw for better tongue control.
- Be mindful of tongue placement.
- Avoid removing aligners to speak.
- Ask your dentist to check the fit if speech doesn’t improve.
Long-Term Solutions
If your lisp continues after a few weeks, speak to your orthodontist to check the fit. Speech therapy may help in rare cases where the lisp persists.
What Are Invisalign Aligners?
Why People Still Choose Invisalign
- Nearly invisible appearance
- Removable trays
- Comfortable SmartTrack material
- Fewer in-clinic visits
- No metal brackets or wires
What to Expect During Invisalign Treatment
- Consultation and digital scans.
- Creation of custom aligners.
- Wearing each aligner for 1–2 weeks until teeth shift into place.
Is Invisalign Worth It?
Invisalign at Cove Dental and Implant Centre
Cove Dental and Implant Centre in Aberdeen offers personalised Invisalign treatment designed for comfort and effective results. If you’re concerned about speech or alignment, our team provides clear guidance throughout your journey.
Schedule a Consultation Today
Book your Invisalign consultation at Cove Dental and Implant Centre and start your journey to a straighter, more confident smile with expert support.
Frequently Asked Questions
Does a lisp from Invisalign go away?
Yes. Most people adjust within a few days to two weeks.
Why does Invisalign cause a lisp at first?
The trays change the space inside your mouth, temporarily affecting tongue movement.
How can I fix my lisp with Invisalign?
Practise speaking, follow exercises, and wear the aligners consistently.
Will Invisalign affect my daily communication?
Only temporarily. The mild lisp fades quickly.
Should I remove my aligners to speak?
No. Removing them slows progress and delays adjustment.
How Much Does Invisalign Cost?
Author Details
This article has been written and reviewed by the professional team at Cove Dental and Implant Centre. Our clinicians and oral care educators ensure all information is accurate, clear, and helpful for patients seeking trusted dental guidance.
Last Updated
12 December 2025
