Tooth Sensitivity

Why are my teeth sensitive to cold and hot food?

By 1 min read

Short answer

Tooth sensitivity usually happens when the protective enamel has worn thin or gums have receded, exposing the dentin layer underneath, which contains tiny nerve endings. Common triggers include enamel erosion, gum recession, teeth grinding, and recent dental work.

About this answer: Prepared by the AllSmiles Dental Editorial Team for general information. Your dentist can advise you based on an examination and your individual needs.

Keep exploring

Is tooth sensitivity a sign of a cavity?

It can be, but sensitivity alone doesn't confirm a cavity, since it's also caused by enamel wear, gum recession, or a cracked tooth. If sensitivity is localized to one tooth or getting worse, it's worth having a dentist check for decay underneath.

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Can sensitive teeth be treated?

Yes, mild sensitivity often improves with desensitizing toothpaste and fluoride treatment, which help block the nerve pathways in exposed dentin. More persistent sensitivity may need a dental sealant, bonding, or treatment of the underlying cause, such as gum recession.

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