Common Causes of Tooth Sensitivity

Wincing at cold drinks or sweets? A Seri Kembangan dentist explains what causes tooth sensitivity and how it's treated. 

Tooth sensitivity happens when the protective enamel wears down, or gums recede, exposing the underlying dentin layer — which contains tiny tubules connected directly to the nerve. Hereby, causing tooth sensitivity.

What causes tooth sensitivity?

• Enamel erosion from acidic foods/drinks (citrus, soda, wine)
• Gum recession, exposing the tooth root, often from aggressive brushing or gum disease
• Teeth grinding (bruxism), which wears down enamel over time
• Cavities or cracked teeth, letting temperature and pressure reach the nerve directly
• Recent dental work (whitening, fillings) — usually temporary
• Overzealous brushing with a hard-bristled brush

Common question?

Is sensitive toothpaste enough to fix it? It helps manage mild sensitivity by blocking nerve signals, but won't fix an underlying cause like a cavity or crack — visit a dentist to check what is the problem this sensitivity.

Why are my teeth suddenly sensitive after whitening? Whitening products can temporarily increase sensitivity by affecting enamel porosity; this typically resolves within a few days.

Can sensitivity mean I have a cavity? Yes, sensitivity — especially on one specific tooth — is a common early sign of a cavity or crack and is worth getting checked.

Book a sensitivity check at EZ Dental →