Dental answers, made clearer
Learn what can trigger sensitive teeth, how dentists investigate the cause and which treatments or daily changes may reduce discomfort.
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.
Read the answerIt 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.
Read the answerYes, 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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