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Dr Shyam Jamalabad  |113 Answers  |Ask -

Dentist - Answered on Jan 07, 2023

Dr Shyam Jamalabad holds a bachelor’s degree in dental surgery from Government Dental College and Hospital, St George Hospital, Mumbai. He has been practising independently at his clinic in Mumbai since 1983.His patients range from celebrities to slum dwellers.... more
Rajesh Karkera Question by Rajesh Karkera on Jan 07, 2023Hindi
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Dear Dr Jamalabad, There has been a continuous sensitivity feeling in my tooth when i drink something hot or cold. Will those Colgate Sensitive type toothpastes work?

Ans: Hi Rajesh
Sensitivity usually results when tooth enamel is damaged or wears away due to abrasion/hyper-acidity etc. Desensitizing toothpastes like the one mentioned help by forming a chemical barrier which block the sensation
DISCLAIMER: The answer provided by rediffGURUS is for informational and general awareness purposes only. It is not a substitute for professional medical diagnosis or treatment.
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Asked by Anonymous - Apr 23, 2026Hindi
Health
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.

..Read more

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