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Tooth Sensitivity or a Cavity? Key Differences Dentists Look For
Tooth sensitivity causes brief pain triggered by cold or sweet foods, while cavities often create lingering or worsening discomfort and may hurt when chewing.
Sensitivity and cavities can feel similar, but they have important differences. Knowing the distinction helps you decide how urgently you need care.
Tooth Sensitivity Typically Feels Like:
- Quick, sharp pain
- Triggered by cold, sweet, or air exposure
- Pain stops quickly after stimulus is removed
Common causes include enamel wear or exposed roots.
A Cavity Often Feels Like:
- Persistent discomfort
- Pain when chewing
- Sensitivity that lingers
- Possible visible dark spots or holes
Key Differences
Sensitivity vs. Cavity
Brief pain vs. Lingering pain
Trigger-based vs. Can occur spontaneously
Multiple teeth possible vs. Usually one tooth
What You Can Try First
- Desensitizing toothpaste
- Fluoride treatments
- Improved brushing habits
When to See a Dentist
If pain lingers, worsens, or occurs without triggers, evaluation is important to rule out decay.
Next Step
Early cavities are simpler and less expensive to treat than advanced decay.
