Can Sensitive Teeth Be Treated Permanently with Desensitizing Toothpaste? - Dentistry

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When biting into cold or hot food, there may be a sensation of sensitivity or discomfort in the teeth?


Hello, doctor.
Sometimes when chewing cold or hot food, my teeth feel sore and sensitive.
Can sensitive teeth be treated with desensitizing toothpaste as a permanent solution?

Azhong, 30~39 year old female. Ask Date: 2021/09/01

Dr. Lin Jiayong reply Dentistry


Hello: As long as it is confirmed that there are no cavities or pulp diseases, sensitive teeth can be treated long-term with desensitizing toothpaste.
Sincerely, Lin Chia-Yung, Department of Dentistry, Taichung Hospital, Ministry of Health and Welfare.

Reply Date: 2021/09/01

More Info


Sensitive teeth can indeed be a frustrating issue, especially when consuming hot or cold foods. The use of desensitizing toothpaste is a common recommendation for managing this condition, but it’s important to understand its limitations and the underlying causes of tooth sensitivity.

Desensitizing toothpaste typically contains compounds such as potassium nitrate or strontium chloride, which work by blocking the nerve signals in the teeth that cause pain. When you use these toothpastes regularly, they can help reduce sensitivity over time. However, it’s crucial to note that while desensitizing toothpaste can provide relief, it may not offer a permanent solution for everyone. The effectiveness of these products can vary based on the individual’s specific dental issues.

Tooth sensitivity can arise from various factors, including:
1. Enamel Erosion: The outer layer of the tooth, known as enamel, can wear down due to aggressive brushing, acidic foods, or beverages. Once the enamel is compromised, the underlying dentin becomes exposed, leading to sensitivity.

2. Gum Recession: If the gums recede, the roots of the teeth can become exposed. The roots are not covered by enamel and are more sensitive to temperature changes.

3. Dental Procedures: Recent dental work, such as fillings, crowns, or teeth whitening, can temporarily increase sensitivity. This is usually a short-term issue that resolves as the teeth heal.

4. Cavities or Decay: If there are cavities or decay present, they can lead to increased sensitivity. In such cases, treating the underlying dental issue is necessary.

5. Bruxism: Grinding or clenching teeth can wear down enamel and lead to sensitivity.

While desensitizing toothpaste can help manage symptoms, it is essential to address the root cause of the sensitivity for a more permanent solution. Here are some additional strategies that may help:
- Regular Dental Check-ups: Regular visits to the dentist can help identify and treat any underlying issues, such as cavities or gum disease, that may be contributing to sensitivity.

- Fluoride Treatments: Your dentist may recommend fluoride treatments to strengthen enamel and reduce sensitivity.

- Mouthguards: If bruxism is the cause, a custom mouthguard can protect your teeth from grinding.

- Dietary Changes: Reducing the intake of acidic foods and beverages can help prevent further enamel erosion.

- Proper Oral Hygiene: Using a soft-bristled toothbrush and practicing gentle brushing techniques can help minimize enamel wear and gum recession.

- Sealants: Dental sealants can be applied to the chewing surfaces of teeth to protect them from decay and sensitivity.

In conclusion, while desensitizing toothpaste can be an effective tool for managing tooth sensitivity, it is not a one-size-fits-all solution. For long-term relief, it is crucial to identify and treat the underlying causes of sensitivity. If you find that your sensitivity persists despite using desensitizing toothpaste, it would be wise to consult with your dentist for a comprehensive evaluation and tailored treatment plan.

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