That sharp twinge
Sensitive teeth give a short, sharp pain when they meet something cold, hot, sweet or acidic
— ice cream, cold air and cold drinks are classic triggers. It happens when the protective
enamel layer wears thin or gums recede, exposing the softer dentine underneath,
which connects directly to the nerve.
Common causes
- Brushing too hard or using a hard-bristled brush, wearing away enamel and gums
- Gum recession exposing root surfaces (often linked to gum disease)
- Tooth erosion from acidic food and drink — see tooth erosion
- Grinding or clenching your teeth, often at night
- Cracked teeth or leaking fillings
- Temporary sensitivity after fillings, scaling or whitening — this normally settles
What you can do
- Use a desensitising toothpaste (e.g. for sensitive teeth) twice daily — and rub a little
directly onto the sensitive spot at night. Give it 2–4 weeks to work.
- Brush gently with a soft or medium brush in small circles, not a scrub.
- Cut down on acidic drinks, and don't brush for an hour after them.
- Don't avoid brushing sensitive areas — plaque makes sensitivity worse.
How we can help
If sensitivity persists, we can apply fluoride varnish or desensitising agents
to the affected areas, place a filling or bonding over exposed root surfaces, or make a night guard
if grinding is the cause. Importantly, we'll also rule out decay or a cracked tooth —
lingering pain (rather than a short twinge) needs checking promptly.
See us if: pain lingers for more than a few seconds after the
trigger, wakes you at night, or is triggered by biting — these suggest a problem that needs
treatment rather than simple sensitivity.
Book a check-up on 0141 554 0499.
