Sensitive Teeth: What's Actually Happening Underneath

That sharp zing from an ice-cold drink or a bite of ice cream. If you know that feeling, you're not alone. Roughly 1 in 3 adults deals with some form of tooth sensitivity.

Here's what's actually going on beneath the surface.

Underneath your enamel is a layer called dentin, filled with thousands of microscopic tubules that lead directly to the nerve of your tooth. When enamel wears down, or gums recede and expose the root surface, those tubules become exposed. Hot, cold, sweet, or even cold air can then reach the nerve directly, causing that sharp, sudden pain.

Common causes include brushing too hard, acidic foods and drinks, teeth grinding, and gum recession from gum disease. The encouraging part is that sensitivity is often manageable, sometimes even reversible, once you identify the cause and adjust your routine.

Sensitive teeth don't have to be something you just live with. For most people a gentler brushing technique and consistent, careful flossing can make a real difference within a few weeks.

Small adjustments, real relief.