Intermittent Tooth Sensitivity in Molars: Causes and Care - Dentistry

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Intermittent pain in the molars?


Hello Dr.
Huang, I have had dental fillings on both of my molars, and I have experienced intermittent tooth sensitivity and pain in the areas of the molars and a few teeth in front of them.
The pain does not always occur on the same side, but a common factor is that when I apply pressure to the teeth (by biting down hard or pressing with my hand), the pain sensation diminishes.
I am unsure if this issue requires special attention, as it currently does not affect my daily life, but I have been unable to determine the cause.
Thank you for your response.

Niming, 20~29 year old female. Ask Date: 2017/02/15

Dr. Huang Tingfang reply Dentistry


Dear Anonymous,
Hello! It is common for filled teeth to experience pain.
This is usually due to: 1.
The material being acidic, or 2.
The cavity being too deep.
For the first issue, consider replacing the material and refilling the tooth.
For the second, you may need to consider root canal treatment.
Please communicate with your dentist for further guidance.
Thank you! Wishing you well!
Sincerely,
Dr.
Huang Ting-Fang, Dentistry

Reply Date: 2017/02/15

More Info


Intermittent tooth sensitivity, particularly in molars, can be a perplexing issue for many individuals. The symptoms you describe—occasional pain when biting down or applying pressure—can arise from various underlying causes. Understanding these causes is crucial for effective management and care.


Possible Causes of Tooth Sensitivity
1. Enamel Erosion: Over time, the protective enamel layer of the teeth can wear down due to factors such as aggressive brushing, acidic foods, or beverages. This erosion can expose the underlying dentin, leading to increased sensitivity, especially when pressure is applied.

2. Dental Restorations: Since you mentioned that your molars have been filled in the past, it’s possible that the fillings themselves could be contributing to the sensitivity. If a filling is too high or improperly contoured, it can create pressure points when biting down, leading to discomfort.

3. Gum Recession: If your gums have receded, the roots of your teeth may become exposed. The roots are not covered by enamel and are more sensitive to temperature changes and pressure. This can lead to discomfort when chewing or biting.

4. Cracked Tooth Syndrome: A crack in a tooth can lead to intermittent pain, especially when chewing. The crack may not always be visible, but it can cause the tooth to flex under pressure, leading to discomfort.

5. Pulpitis: Inflammation of the dental pulp (the innermost part of the tooth containing nerves and blood vessels) can cause sensitivity and pain. This condition can arise from deep cavities or trauma to the tooth.

6. Bruxism: If you grind your teeth at night or during the day, this can lead to tooth sensitivity and pain. The constant pressure can wear down enamel and lead to microfractures in the teeth.


Management and Care
Given that your sensitivity does not currently interfere with your daily life, it may be reasonable to monitor the situation. However, here are some steps you can take to manage the sensitivity:
1. Use Desensitizing Toothpaste: Products specifically designed for sensitive teeth can help block the pathways that lead to nerve endings in the teeth. Regular use can gradually reduce sensitivity.

2. Gentle Oral Hygiene: Ensure that you are using a soft-bristled toothbrush and gentle brushing techniques. Avoid aggressive brushing, which can exacerbate enamel wear and gum recession.

3. Avoid Acidic Foods and Beverages: Limit your intake of acidic foods and drinks, as they can erode enamel and increase sensitivity. If you consume them, rinse your mouth with water afterward.

4. Regular Dental Check-ups: It’s essential to maintain regular dental visits. Your dentist can monitor the condition of your fillings, check for cracks, and assess your overall dental health.

5. Consider a Night Guard: If bruxism is suspected, a custom-fitted night guard can protect your teeth from grinding during sleep.

6. Addressing Underlying Issues: If the sensitivity persists or worsens, it’s crucial to consult your dentist. They may recommend further evaluation, including X-rays, to check for underlying issues such as cracks or pulpitis.


Conclusion
While intermittent tooth sensitivity can be concerning, understanding the potential causes and implementing appropriate care strategies can help manage the symptoms effectively. If you notice any changes in the pattern of your sensitivity or if it begins to affect your quality of life, seeking professional dental advice is essential. Early intervention can prevent more severe dental issues down the line.

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