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Can Teeth Whitening Cause Permanent Sensitivity?

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Teeth whitening has been the go-to cosmetic dental procedure for people who wish to improve the aesthetic appeal of their teeth. This treatment is quite common, and you can now get it from almost any dentist’s clinic.

Moreover, advancements in the dental landscape have made it possible to get whiter teeth through at-home whitening products.

However, a common concern is whether teeth whitening can lead to permanent sensitivity.

This article delves into the intricacies of teeth whitening sensitivity, highlighting aspects like:

  • Understanding tooth sensitivity;
  • Why does teeth whitening cause sensitivity;
  • How to prevent tooth sensitivity;
  • How to manage tooth sensitivity after whitening.

What Is Teeth Whitening Sensitivity?

Teeth whitening sensitivity is the discomfort or pain you may experience after teeth whitening procedures. It is one of the most common side effects of teeth whitening.

It’s a temporary condition that occurs when the peroxide-based whitening gel used in the process penetrates the enamel and reaches the dentin layer of the tooth. The dentin contains microscopic tubules that lead to the tooth’s nerve center, which can cause pain or discomfort.

Teeth sensitivity can manifest itself in numerous ways, including:

  • Increased sensitivity to temperature: You may experience heightened sensitivity to hot or cold temperatures. Consuming hot or cold beverages, as well as breathing in cold air, can trigger discomfort.
  • Discomfort during eating: This is especially when consuming foods that are extremely hot, cold, sweet, or acidic.
  • Discomfort during brushing: The friction and the presence of certain ingredients in toothpaste can exacerbate the discomfort.
  • Throbbing or shooting pain: At times, you may experience throbbing or shooting pain in response to stimuli.
  • Pain when biting or chewing: Biting down on food or applying pressure while chewing may cause discomfort, especially if the whitening process has affected the tooth’s enamel.

It’s important to note that these symptoms are usually temporary and should subside as the enamel remineralizes and the nerves adapt to the changes.

But can teeth whitening cause permanent sensitivity?

How Long Does Sensitivity Last After Teeth Whitening?

Does teeth whitening make your teeth sensitive? Well, it surely can. Tooth whitening can enhance your smile, but the journey to a brighter set of teeth may come with a temporary price — sensitivity. Understanding the duration of this sensitivity is crucial if you are considering or undergoing teeth whitening procedures.

But, why does tooth whitening cause sensitivity? The cause is not yet to be known, but there are hypotheses pointing out that it can be caused by peroxides, as they can affect your enamel and dentin.

Regarding how long are teeth sensitive after whitening, most people experience sensitivity during the whitening process and for a few days to a couple of weeks afterward. The duration varies based on several factors, and while discomfort is common, it is usually a sign that the teeth are responding to the whitening agents.

Although teeth sensitivity after whitening is often temporary, there are a few factors that impact how long you may experience the condition, including:

  • Frequency of whitening: The more frequently teeth whitening is performed, the more likely it is for sensitivity to persist. You need to allow sufficient time between treatments to give your teeth a chance to recover.
  • Strength of the whitening agent: Higher concentrations of whitening agents, such as hydrogen or carbamide peroxide, can contribute to increased sensitivity. Using milder formulations may help alleviate this issue.
  • Duration of whitening: The length of time the whitening agent is in contact with the teeth also plays a role. Longer exposure may lead to more significant sensitivity. It is important that you adhere to the recommended duration of whitening, especially if using at-home whitening products.
  • Individual sensitivity: Each person’s teeth and tolerance levels vary. Some people may experience minimal sensitivity, while others may find it more pronounced. There are various reasons behind this, such as existing dental conditions.

Can Teeth Whitening Cause Permanent Sensitivity?

While tooth whitening sensitivity is typically temporary, in rare cases, it may become a more persistent issue. Permanent sensitivity after whitening is uncommon, but it may occur under certain circumstances, such as:

Having pre-existing dental conditions

If you have pre-existing dental conditions, such as cracked teeth, gum recession, or untreated cavities, you may be more prone to prolonged sensitivity. It is crucial to address these issues before whitening to help prevent complications.

Overuse of whitening products

Excessive and improper use of over-the-counter whitening products or products with high concentrations of whitening agents can lead to lasting sensitivity.

Ignoring warning signs

Persistent sensitivity may be a sign of an underlying problem. Ignoring prolonged discomfort can lead to more severe issues. In this case, it is essential for you to have any discomfort checked by the dentist before it gets worse.

What Can You Do To Prevent Sensitivity?

If you are ready to embark on your teeth whitening journey, there are a few things to consider to minimize the risk of sensitivity. Some of these considerations include:

Consult with your dentist
Consult with your dentist

Before starting any teeth whitening regimen, consult with your dentist. You can easily find professional teeth whitening services near you by asking around or doing a quick online search.

This is a crucial step as the dentists will first assess your oral health to identify pre-existing conditions that might contribute to sensitivity. Your dentist can also provide personalized recommendations based on your unique dental situation.

Address existing dental issues
Address existing dental issues

If you have unresolved dental issues such as cavities, gum disease, or cracks in your teeth, addressing these concerns before whitening is crucial. Existing problems can exacerbate sensitivity, so ensuring your oral health is in optimal condition is essential.

Choose the right whitening method
Choose the right whitening method

Select a teeth whitening method that suits your dental needs and sensitivity levels. Opting for professional in-office treatments ensures controlled application and minimizes the risk of complications. This is because they are often supervised by dental professionals.

However, if you opt for at-home solutions, only go for the safest proven whitening methods with lower concentrations of whitening agents.

Although LED whitening works for better results, you should be more considerate to use it for the recommended time, as overusing it may lead to sensitivity issues.

Gradual whitening approach
Gradual whitening approach

Consider a gradual approach to teeth whitening, especially if you have never undergone the process before. Instead of aggressive treatments, start with milder products and shorter durations, such as using the best whitening strips. This allows your teeth to adjust to the whitening agents more comfortably.

Use desensitizing products
Use desensitizing products

Incorporate desensitizing toothpaste or mouthwash into your oral care routine in the weeks leading to teeth whitening. These products contain ingredients such as potassium nitrate or fluoride, which can help reduce sensitivity and strengthen tooth enamel.


Did you know that staying well-hydrated is not only beneficial for your overall health but can also impact the health of your teeth? Dehydration can contribute to sensitivity, so ensure you drink adequate water daily.

Limit acidic and sugary foods
Limit acidic and sugary foods

Acidic and sugary foods can contribute to enamel erosion, making teeth more susceptible to sensitivity. Limit your intake of such foods and beverages, especially in the days leading up to and following teeth whitening.

These tips can help you avoid struggling with teeth sensitivity if you are planning on getting your teeth whitened.

But what if you have already undergone teeth whitening and are experiencing sensitivity issues?

How to Manage Teeth Sensitivity After Whitening

Are you experiencing sensitivity after you’ve had your teeth whitened? Fear not, as this is most likely a common temporary occurrence. However, there are a few things that you can do to manage this sensitivity and ensure that it doesn’t persist for long.

1- Use desensitizing toothpaste

Switch to a desensitizing toothpaste formulated to alleviate tooth sensitivity. These toothpaste varieties mostly contain compounds like potassium nitrate or strontium chloride, which help block nerve pathways and reduce sensitivity.

2- Maintain consistent oral hygiene

Continue to prioritize good oral hygiene practices even after teeth whitening. Brush your teeth gently using a soft-bristled toothbrush and fluoride toothpaste. Moreover, you should floss regularly to ensure that your teeth and gums remain healthy, contributing to an overall reduction in sensitivity.

3- Avoid trigger foods and drinks

Identify and steer clear of foods and beverages that may trigger sensitivity. Foods or drinks that are excessively hot, cold, sweet, or acidic can exacerbate discomfort. Instead, strive to consume a diet that is gentle on your teeth, and consider consuming beverages at moderate temperatures.

4- Stay hydrated

As mentioned above, proper hydration is crucial for avoiding or reducing the risk of teeth sensitivity. Drinking water helps maintain a balanced pH level in your mouth and promotes saliva production, which is a natural protector for your teeth. Furthermore, adequate hydration contributes to the remineralization of enamel and can help manage sensitivity.

5- Give it time

In most cases, teeth sensitivity after whitening is temporary. It is important to note that this is a common occurrence, and it is advisable to give it time. However, if the sensitivity persists for an extended period or becomes severe, consult your dentist to rule out any underlying issues.

6- Consult with your dentist

As a rule of thumb, always consult with your dentist if your oral health is a concern. In this case, if the sensitivity is persistent or causing significant discomfort, it’s essential to reach out to your dental healthcare provider. They can assess the situation, identify potential causes, and recommend specific treatments or adjustments to your oral care routine.


Teeth sensitivity after whitening is a common occurrence. It is usually a temporary thing which goes away after a short period. However, there are a few but rare occurrences where the sensitivity may prolong or become permanent if left untreated. This is why consulting with your dentist before and after whitening is crucial.

Nevertheless, besides getting professional in-office whitening, you can also consider using enamel-safe whitening products, like Snow’s whitening kit, to get you a sensitivity-free whitening experience.


How common is permanent sensitivity after teeth whitening?

Permanent sensitivity after teeth whitening is relatively uncommon. However, in rare cases, prolonged or permanent sensitivity may occur, especially if there are pre-existing dental conditions or if the whitening process is not conducted appropriately.

Can the type of whitening product used affect the likelihood of permanent sensitivity?

Yes, the type of whitening product used can influence the likelihood of permanent sensitivity. Products with higher concentrations of whitening agents may increase the risk of sensitivity, especially if used excessively or without proper supervision. Moreover, it is crucial to consider going for enamel-safe whitening products to avoid or minimize sensitivity.

Can professional dental supervision reduce the risk of permanent sensitivity during teeth whitening?

Yes, professional dental supervision can significantly reduce the risk of permanent sensitivity during teeth whitening. Dentists have the expertise to assess oral health, identify pre-existing conditions, and recommend the most appropriate whitening method for your specific needs.


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