Tooth Sensitivity: Why Brushing Causes Pain and What to Do - Dentistry

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Tooth sensitivity, particularly when brushing or using certain toothpaste, can be a frustrating and painful experience. Based on your description, it seems that you are experiencing heightened sensitivity in your upper left tooth, especially when it comes into contact with toothpaste. This sensitivity can be attributed to several factors, particularly if you have a history of periodontal disease.


Understanding Tooth Sensitivity
Tooth sensitivity occurs when the underlying layer of your teeth, known as dentin, becomes exposed. This exposure can happen due to gum recession, enamel erosion, or dental procedures. When the dentin is exposed, stimuli such as hot, cold, or even certain types of toothpaste can trigger pain signals to the nerves inside the tooth.
In your case, the fact that you have periodontal disease may contribute to the sensitivity. Periodontal disease can lead to gum recession, which exposes the roots of the teeth. The roots are not covered by enamel, making them more susceptible to sensitivity. Additionally, certain ingredients in toothpaste, especially those designed for sensitivity, can sometimes irritate already sensitive areas.


Possible Causes of Your Sensitivity
1. Gum Recession: If your gums have receded due to periodontal disease, the roots of your teeth may be exposed. This exposure can lead to increased sensitivity, especially when brushing or using toothpaste.

2. Enamel Erosion: If you have been using abrasive toothpaste or have a diet high in acidic foods and beverages, your enamel may have eroded, exposing the dentin underneath.

3. Toothpaste Ingredients: Some toothpaste contains ingredients that can irritate sensitive teeth. For instance, certain whitening agents or strong flavors can exacerbate sensitivity.

4. Recent Dental Work: If you have had recent dental work, such as cleanings or fillings, it can temporarily increase sensitivity in the treated areas.


What You Can Do
1. Switch Toothpaste: Since you mentioned that changing toothpaste alleviated the pain, it may be beneficial to continue using a toothpaste specifically designed for sensitive teeth. Look for products that contain potassium nitrate or strontium chloride, which can help block the nerve signals that cause pain.

2. Gentle Brushing Technique: Ensure that you are using a soft-bristled toothbrush and a gentle brushing technique. Brushing too hard can further irritate sensitive areas and contribute to gum recession.

3. Avoid Acidic Foods: Limit your intake of acidic foods and beverages, as they can erode enamel and exacerbate sensitivity.

4. Fluoride Treatments: Consider using fluoride treatments, which can help strengthen enamel and reduce sensitivity. Your dentist can provide these treatments during your visits.

5. Regular Dental Check-ups: Continue to have regular dental check-ups and cleanings. Your dentist can monitor your periodontal health and provide tailored advice for managing sensitivity.

6. Desensitizing Treatments: If sensitivity persists, your dentist may recommend professional desensitizing treatments, which can provide more immediate relief.


Conclusion
In summary, your tooth sensitivity when brushing is likely related to the underlying periodontal disease and the exposure of dentin. Switching to a different toothpaste that does not trigger pain is a good step. However, if the sensitivity continues or worsens, it is essential to consult your dentist for further evaluation. They can provide a comprehensive assessment and recommend appropriate treatments to manage your sensitivity effectively. Remember, maintaining good oral hygiene and regular dental visits are crucial in managing both sensitivity and periodontal health.