Understanding Sensitive Teeth: A Plain-English Explainer

It is usually caused by gum recession or enamel wear, and two of the commonest causes are things people do to look after their teeth.

Key takeaways

• Mechanism: exposed dentine tubules
• Common causes: gum recession, enamel erosion, heavy brushing, grinding
• Most useful single change: Use a desensitising toothpaste daily and rub a little onto the sensitive area.
• Commonest mistake: Brushing immediately after acidic food or drink.
• See a doctor if any of the signs under "When to speak to a doctor" below apply to you.

The short answer

Short sharp pain in response to cold, heat, sweetness or touch, from exposed dentine.

Where it fits

This is part of Oral Health. The published position is set out below, along with what it means day to day.

The numbers, in one place

What that means in practice

In everyday terms:

• Use a desensitising toothpaste daily and rub a little onto the sensitive area
• Brush gently with a soft brush
• Reduce acidic drinks and do not sip them slowly
• Ask a dentist about a night guard if you grind your teeth

What gets people into trouble

Where people most often come unstuck:

• Brushing immediately after acidic food or drink
• Hard brushes and heavy pressure
• Whitening products if sensitivity is already a problem

Where to go next

• Popular Beliefs About Sensitive Teeth, and What Is Actually Published
• Sensitive Teeth: A Beginner-Friendly Start
• Sensitive Teeth — the reference entry
• The Evidence on Children's Teeth, Without the Hype
• The Evidence on Mouth Cancer Awareness, Without the Hype

When to speak to a doctor

See a dentist if sensitivity is severe, one-sided, lingers for more than a few seconds after the stimulus, or wakes you at night — these suggest decay, a cracked tooth or nerve involvement rather than simple sensitivity. Seek urgent dental care for facial swelling or fever with toothache.

Where this comes from

• NHS — Sensitive teeth
• Oral Health Foundation — dentine sensitivity

How this page was put together

Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.

Medical disclaimer

This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.