I have tooth sensitivity when I eat hot soups, cold water or icecreams. I don't have any pain or injury as such. What could be causing it? What should I do? I am 36

Ans: Hello
Tooth sensitivity to hot/cold without pain or injury is not uncommon, even in your 30s.
It’s usually not a major crisis. And it's easily treatable. But it does indicate that the outermost protective layer (ENAMEL) of your teeth is compromised.

LIKELY CAUSES

1. EXPOSED DENTIN: Enamel wears down or gums recede, exposing the inner sensitive dentin.
2. GUM RECESSION : Aggressive brushing, grinding, or gum issues can pull gums back and expose tooth roots. Roots don’t have enamel.
3. ENAMEL EROSION : Acidic foods/drinks, acid reflux, or whitening products can thin enamel over time.
4. CRACKED FILLING or SMALL CAVITY : Might not hurt yet but still lets temperature through.
5. TEETH GRINDING /CLENCHING: Wears enamel and can cause microfractures.
6. RECENT DENTAL WORK: Cleanings, whitening, or fillings can cause temporary sensitivity for weeks.

What you can do right now:

- SWITCH TOOTHPASTE : Use a desensitizing toothpaste with potassium nitrate or stannous fluoride . Takes 2-4 weeks of daily use to really work.
- BRUSH GENTLER : Soft-bristle brush only. No scrubbing. Think "massage," not "scour."
- SKIP ACIDS: Avoid acidic food or beverages.
- FLUORIDE MOUTHWASH: OTC fluoride rinse at night helps strengthen enamel.
- CHECK FOR NIGHT GRINDING : If you wake with a sore jaw, ask your dentist about a night guard.

Red flags to book a dentist's appointment sooner: Sensitivity that lingers >30 sec, one specific tooth that’s way worse, visible gum recession, or if it keeps getting worse despite using desensitizing toothpaste.

A dentist can spot the exact cause and may do: fluoride varnish, bonding over exposed roots, treating gum disease, or replace a leaky filling.