Tooth sensitivity or dentinal sensitivity, occurs when the enamel of tooth is worn, uncovering the tooth’s central dentin layer. The nerve branches lying within dentin openings stem from the tooth’s nerve center and turn sensitive. When any pressure or cold, hot temperatures are subject to these nerves, pain emanates. There are many symptoms of tooth sensitivity, which help in detecting the problem and treating it.

Symptoms of Tooth Sensitivity

Cold Temperatures

When you eat or drink something cold, like ice cream, cool drinks, lemonade or watermelon, you may experience sudden sharp pain projecting through the teeth. This can be an indication of tooth sensitivity, which is most common.

Cold drinks containing sugar can cause more toothache than the drinks like cold tea or water without sugar. Try different types of foods and drinks, to find whether the pain is the result of cold temperature or sugar.

Hot Temperatures

Pain arising from your tooth, when you eat or drink something very hot, can also be a symptom of sensitive teeth. This symptom is less common, but still occurs in some people having sensitive teeth. If you feel pain when you take hot items like tea or hot cocoa, the sensitivity could be because of sugar and not due to heat. Find out what is the root cause, by trying different drinks. Hot temperature sensitivity can sometimes be an indication of nerves dying within the tooth.


Occurrence of toothache and discomfort, when you eat sweets, sugary food items or drink liquids with sugar content, can be a sign of tooth sensitivity. Biting into candy, chocolate, cookies, pies or even a slight brush of mint like peppermint against the tooth can cause pain in sensitive tooth.


If you feel pain, when you brush your teeth with toothbrush or touch with your tongue or finger, you could be suffering from sensitive teeth. You should be gentle while brushing or flossing sensitive teeth and take advice of a dentist.