Tooth Sensitivity
Definition
Discomfort or pain in teeth when exposed to hot, cold, sweet, or acidic stimuli. Sensitivity occurs when dentin is exposed due to worn enamel, gum recession, or decay. Crowns can eliminate sensitivity by covering and protecting exposed areas.
Related Terms
Dentin
The layer of tooth tissue beneath the enamel. Dentin is softer than enamel and makes up most of the tooth structure. It contains microscopic tubes that can transmit sensations, which is why exposed dentin causes sensitivity. Crowns cover and protect dentin.
Enamel
The hard, outer layer of the tooth crown. Enamel is the hardest substance in the human body, protecting the underlying dentin. It cannot regenerate once damaged, which is why cavities and chips need to be treated. Crowns replace enamel's protective function.
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