Predominant Causes Of Sudden Teeth Sensitivity

Teeth sensitivity is caused when the enamel, the protective layer of the teeth, gets degraded, exposing the dentin.

Varun Verma
Written by: Varun VermaUpdated at: Feb 26, 2023 08:24 IST
Predominant Causes Of Sudden Teeth Sensitivity

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Teeth sensitivity is caused when the enamel, which is the protective layer of the teeth, gets degraded. This exposes the dentin, which is more temperature sensitive than enamel. So, after the enamel is degraded and dentin is exposed, any hot or cold stimuli on the affected teeth could result in sensitivity ranging from mild to throbbing sensations. Although there are many reasons your teeth can get sensitive, this article talks about some of the predominant causes. 

Vigorous  Brushing

Vigorous brushing is one of the reasons you may experience sudden sensitivity in your teeth. This happens as the aggressive brushing action degrades the enamel. Also, when you vigorously use a hard bristled brush, your enamel gets damaged, and you might suffer sensitivity.

Teeth Whitening

As the name suggests, teeth whitening is the process of whitening discoloured teeth. This process involves the bleaching of the teeth to make them look lighter. There are chances that the bleaching agents or chemicals used in the process might make the gums and teeth sensitive temporarily.

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While stress is the reason for many diseases, it can also result in the onset of sensitive teeth. People tend to grind or clench their teeth when under stress, which is called bruxism. This condition can occur anytime, but people experience it during the night when they are asleep. Teeth grinding and clenching can also wear your enamel down, making your teeth prone to sensitivity. This tooth damage can cause pain that can radiate to the head region, aggravating headaches.


With other changes in the body, pregnancy can also cause a change in the mouth. Having sensitive teeth is a common change that happens during this period. However, pregnancy is not the cause of sensitive teeth. It is the hormonal changes that lead to the sensitivity of the teeth.

Tooth Decay

Tooth decay is one of the predominant causes of teeth sensitivity. Tooth decay can be the result of acid buildup on teeth produced by plaque. When plaque is not eliminated, it can turn into tartar, leading to problems like tooth cavities, gum disease, and tooth decay. In these conditions, it is likely to experience sensitive teeth. 

Gum Problems

Gum diseases can also lead to sensitivity. Gum diseases like gingivitis can happen due to many reasons, including ageing and not following good oral hygiene, giving way for germs to thrive. The advanced stage of gum disease can cause gums to recede, exposing the roots of the teeth. So, when you eat something hot or cold, your teeth feel sensitive.

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Recent Dental Works

You may also feel sudden teeth sensitivity if you have recently undergone dental procedures like teeth scaling or cleaning. This sensitivity is temporary and goes away in some days or weeks. Additionally, your dentist may suggest some relief measures in such conditions. 

Cold Weather

Chilly breezes during cold weather can also induce sudden teeth sensitivity. People who have a habit of breathing through the mouth are more prone to this. Cold weather can increase teeth sensitivity if you already have issues.

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