tooth sensitivity
also known as dentin hypersensitivity, is a sharp, short pain that arises from exposed dentin, the inner layer of the tooth, due to various stimuli. This sensitivity is triggered by things like hot, cold, sweet, or acidic foods and drinks, and even by brushing or inhaling cold air. It’s a common problem, affecting up to 57% of the population, according to Colgate.
Causes of Tooth Sensitivity:
Enamel Erosion:
The hard enamel layer protects the softer dentin beneath. When enamel wears away, due to factors like over-brushing, acidic foods and drinks, or teeth grinding, it exposes the dentin.
Gum Recession:
Receding gums can expose the tooth’s root, which is covered by cementum, a substance that can also wear away, leading to dentin exposure.
Other Dental Issues:
Cavities, cracked or chipped teeth, worn fillings, and gum disease can also contribute to sensitivity by exposing the dentin or irritating the nerve.
Teeth Whitening:
Some teeth whitening treatments can temporarily increase sensitivity due to the chemicals involved.
Symptoms:
Sharp, shooting pain triggered by hot, cold, sweet, or acidic substances.
Pain that may be mild or severe and can last from a few seconds to several hours.
Sensitivity to touch, like brushing.