You whitened your teeth and now they ache. Your front teeth feel sensitive when you drink cold water or breathe in cold air. Is that normal? How long will it last? Let us look at what to expect after professional whitening — and what to do if the sensitivity does not settle.
Is Sensitivity After Whitening Normal?
Yes. Most people experience some degree of sensitivity during or after professional teeth whitening. It is one of the most common side effects.
The whitening product penetrates your enamel to lift stains. That process can temporarily irritate the nerve inside your tooth. For most people, the discomfort is mild and fades within a few days.
How Long Does Whitening Sensitivity Last?
For most patients, sensitivity peaks within 24 to 48 hours after treatment and settles within a week.
If you have had whitening at the dentist, the effect is usually stronger in the first day or two, then gradually reduces.
At-home whitening trays used over several days can cause sensitivity that builds up over time — it may feel stronger on day three or four than on day one.
What Helps Reduce Whitening Sensitivity?
Use a toothpaste designed for sensitive teeth. These contain ingredients like potassium nitrate that calm the nerve in your tooth.
Avoid very hot or very cold food and drinks for a few days after whitening. Acidic drinks like fruit juice and cola can also aggravate sensitivity.
If you are using home whitening trays, try skipping a night or using them for a shorter time. More is not always better — overuse causes more sensitivity without better results.
Your dentist can recommend a desensitising gel or prescribe a higher fluoride toothpaste to use alongside your whitening treatment.
When Should You Be Concerned?
If sensitivity is severe — sharp, lingering pain that stops you eating or sleeping — contact your dentist. This is not typical and should be assessed.
Pain that is getting worse rather than better after the first few days also needs professional attention. It could indicate that your enamel was already compromised before whitening, or that the gel contacted a cracked tooth.
Book a Consultation
Whitening should not hurt. If you have had a bad experience before, or if you are worried about sensitivity, talk to your dentist before you start. There are ways to prepare your teeth and reduce the risk.
Call 01323 723757 or book at www.meadsdental.com
Meads Village Dental Practice