Tooth Sensitivity: Causes of Pain When Biting - Dentistry

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Tooth sensitivity and pain during biting can be concerning, and understanding the underlying causes is essential for proper management. Based on your description, it sounds like you are experiencing discomfort in a lower molar when applying pressure, which could be attributed to several factors, including tooth sensitivity, dental caries (cavities), or other dental issues.

Tooth Sensitivity: Tooth sensitivity occurs when the underlying dentin becomes exposed due to enamel wear or gum recession. This exposure can lead to discomfort when consuming hot, cold, or sweet foods, or even during biting. If your discomfort is mild and only occurs when biting down, it may suggest that the tooth is sensitive rather than having a cavity. However, sensitivity can also develop after dental procedures or due to the use of certain dental materials.

Dental Caries (Cavities): If the discomfort is more pronounced or accompanied by other symptoms, such as visible holes in the tooth or pain that lingers after eating, it could indicate the presence of a cavity. Cavities can develop in previously filled teeth, especially if the filling has deteriorated or if there is recurrent decay. Since you mentioned that this discomfort is a new occurrence, it is important to consider that a cavity may be forming or that an existing filling may be compromised.

Other Possible Causes:
1. Cracked Tooth Syndrome: Sometimes, a tooth may have a crack that is not visible but can cause pain when biting. This condition can lead to sharp pain during chewing and may require further investigation.

2. Gum Disease: If the discomfort is associated with gum swelling or tenderness, it could be a sign of periodontal disease, which can affect the supporting structures of the tooth.

3. Recent Dental Work: If you have had recent dental work done on that tooth, such as a filling or crown, the sensitivity could be a temporary reaction to the procedure. It is not uncommon for teeth to be sensitive after such treatments.

What to Do Next: Given that this is a new symptom for you, it is advisable to schedule an appointment with your dentist for a thorough examination. Your dentist may perform X-rays to check for cavities or other underlying issues that may not be visible during a standard examination. They can also assess the condition of any existing fillings and determine if further treatment is necessary.

In the meantime, you can manage sensitivity by using desensitizing toothpaste, which can help reduce discomfort over time. Avoiding extremely hot or cold foods may also provide temporary relief.
In summary, while tooth sensitivity can be a normal reaction, especially if it is new, it is essential to rule out more serious conditions like cavities or cracks. A dental professional will be able to provide a definitive diagnosis and recommend appropriate treatment to alleviate your discomfort.