That short, sharp jolt with cold, sweets or brushing has a name — dentine hypersensitivity — and precise causes. Good news: it can be solved, starting from the cause.
Why it happens
- Enamel erosion: acidic drinks, reflux, aggressive brushing.
- Gum recession: exposed roots have no enamel protection.
- Bruxism: micro-fractures and grinding wear.
- Decay and leaking restorations: localised sensitivity always deserves a check.
What really works
- Diagnosis: understanding where the stimulus comes from.
- Gentle brushing technique and soft bristles.
- Targeted desensitising products, in-practice and at home.
- Treating the cause: sealing exposed areas, managing bruxism with a night guard, correcting an acidic diet.
When not to wait
Sensitivity localised to one tooth, lasting minutes or waking you at night: that is not simple hypersensitivity — have it seen soon. Usually small interventions are enough.
Sources
- WHO, Oral health fact sheet — enamel protection and proper hygiene.
- WHO, Guideline: Sugars intake, 2015 — sugary and acidic drinks among erosion and caries factors.