Tooth sensitivity: what it may mean

Tooth sensitivity is usually a short, sharp sensation rather than a constant ache. If the pain lingers, throbs, wakes you or appears with swelling, the problem may need more urgent dental assessment.

• Exposed dentine from gum recession or tooth wear.
• Tooth decay, cracks, leaking fillings or a damaged restoration.
• Recent dental treatment, whitening or brushing trauma.
• Acidic foods and drinks or grinding and clenching habits.

• Keep brushing gently with fluoride toothpaste and avoid scrubbing the gumline.
• Avoid known triggers if they are making symptoms worse.
• Arrange a dental check if sensitivity is new, localised or not settling.

• Do not place aspirin or other medicines against the gum or tooth.
• Do not ignore sensitivity that becomes spontaneous, severe or lingering.
• Do not use home repair products as a substitute for dental assessment.

• Sensitivity affects one tooth repeatedly.
• Symptoms continue despite sensible self-care.
• There is a visible cavity, crack, broken filling or gum recession concern.

• Pain is severe or affecting sleep, eating or daily activity.
• Sensitivity is linked with swelling, fever, a bad taste or pain on biting.
• Symptoms follow dental trauma or a restoration has become loose or broken.

• Assess teeth, gums, bite and restorations and may take X-rays where clinically appropriate.
• Look for decay, cracks, gum recession, tooth wear or restoration problems.
• Discuss preventive care, desensitising measures or treatment based on the cause.