How Long Does Teeth Sensitivity Last After Whitening?
Are you considering professional teeth whitening but worried about sensitivity? If so, you’re not alone! At Pitt Street Dental Centre in Sydney CBD, many of our patients ask this very question.
The good news? Sensitivity after whitening is temporary! Let’s explore why it happens, how long it lasts, and what you can do to reduce discomfort after your treatment.
Why Does Teeth Whitening Cause Sensitivity?
How Whitening Works
The whitening gel used in professional treatments penetrates the enamel, reaching deeper layers of the tooth to break down stains and discolouration.
Exposed Tubules
Your teeth contain tiny tubules—like small channels between the enamel and the nerve. When whitening gel is applied, these tubules temporarily open, making your teeth more sensitive to temperature and pressure.
Rebuilding the Protective Layer
After treatment, your saliva naturally works to rebuild the protective layer over these tubules, reducing sensitivity over time.
How Long Does Sensitivity Last?
- First 24–48 Hours – Sensitivity peaks within the first day or two after whitening. You might feel mild discomfort when eating or drinking hot, cold, or acidic foods.
- Within a Few Days – For most people, sensitivity subsides completely within 48 hours as the tubules seal up again.
- For Those with Naturally Sensitive Teeth – If your teeth are already prone to sensitivity, it may take a little longer, but it’s still temporary
How to Minimise Sensitivity After Whitening
- Use a Desensitising Toothpaste – Special formulas like Sensodyne or Colgate Pro-Relief can help seal the tubules faster, reducing discomfort.
- Avoid Hot or Cold Drinks – Stick to room-temperature water and lukewarm foods for the first 24–48 hours.
- Skip Acidic or Sugary Foods – Foods like citrus, coffee, and soda can increase sensitivity immediately after whitening.
- Use a Soft-Bristled Toothbrush – This prevents further irritation of your enamel while it’s still adjusting.
- Fluoride Treatments – Your dentist can apply a fluoride gel after whitening to strengthen enamel and reduce sensitivity faster.
Whitening Sensitivity Is Temporary—Your Brighter Smile Is Worth It!
If you’re considering professional teeth whitening but have concerns about sensitivity, know that any discomfort is short-lived and completely reversible.
At Pitt Street Dental Centre, we customise every whitening treatment to minimise sensitivity and maximise results—so you can enjoy a brighter, healthier-looking smile with confidence.
Want to whiten your smile safely and effectively? Call us or complete our booking form here to schedule a consultation today!
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The content is not intended to be a substitute for professional personal diagnosis or treatment. Always seek the advice of your dentist or another qualified health provider with any questions you may have regarding a dental or medical condition. Never disregard professional advice or delay seeking it because of something you have read or seen on the Site.
Services We Mentioned:
Teeth Whitening
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Kristen K.
I have been going to Dr Cai for almost two years and each time I visit he and the staff are so lovely and professional. I cannot recommend them enough.
Nikki J.
Best dentists I have ever been to. I even travelled to Pitt Street Dental when we lived interstate to see them. Very capable, thoughtful and kind dentists and team.
