Why Does Tooth Sensitivity Occur?

What is Tooth Sensitivity?

Tooth sensitivity is a short, sharp pain felt in the tooth when exposed to hot, cold, sweet, sour foods and drinks, or cold air. It occurs due to the stimulation of nerve endings as a result of the exposure of the dentin layer.

Common Causes

• Enamel wear: Hard brushing, acidic foods
• Gum recession: Exposure of the root surface
• Cavities: Cavities reaching the dentin layer
• Teeth grinding: Can cause enamel cracks
• Post-whitening: Temporary sensitivity
• Old or cracked fillings

Treatment and Prevention

• Use toothpaste formulated for sensitive teeth
• Choose a soft-bristled toothbrush
• Limit acidic foods and drinks
• Fluoride gel or varnish application (by a dentist)
• In advanced cases, dentin protection with bonding or crown

When to See a Dentist?

If sensitivity lasts longer than a few weeks or increases in severity, there may be a serious underlying issue. Early intervention is important.