What Tooth Sensitivity Means
That sharp zing when you sip cold water or bite into ice cream is your tooth telling you that its protective layers have been compromised. Healthy teeth have enamel on top and gums covering the roots. When either wears away, the sensitive inner layer (dentin) gets exposed.
Common Causes
Gum recession: When gums pull back, they expose the root surface which has no enamel protection. This is one of the most common causes of sensitivity.
Worn enamel: Aggressive brushing, acidic foods, or teeth grinding can thin your enamel over time.
Cavities: Decay creates holes that expose the inner tooth layers to temperature changes.
Cracked teeth: Tiny cracks allow temperature to reach the nerve directly.
Recent dental work: Teeth can be temporarily sensitive after fillings, crowns, or whitening. This usually settles within a few weeks.
What to Do Now
- Switch to sensitivity toothpaste. Use it twice daily for at least 2 to 4 weeks. Brands with potassium nitrate or stannous fluoride work well.
- Use a soft bristle toothbrush. Brush gently in small circles. Hard brushing makes sensitivity worse.
- Get clarity with DentaSmart. Upload a photo to check for visible issues like cavities or gum recession. If the sensitivity is persistent, schedule a dental visit.
