Last updated: February 2026. Information verified from NHS, Oral Health Foundation, and official UK sources.
Sensitive teeth affect up to one in two UK adults, causing sharp pain when eating hot, cold, sweet, or acidic foods. The good news is that effective treatments are available on the NHS and privately. This guide explains why teeth become sensitive, what you can do at home, and when professional treatment is needed.
What Are Sensitive Teeth?
Sensitive teeth, known medically as dentine hypersensitivity, occurs when the softer inner layer of your tooth (dentine) becomes exposed. Dentine is normally protected by enamel on the crown and gum tissue at the root.
"Sensitive teeth can be a painful condition which occurs when dentine, a part of the tooth that is normally protected by the enamel covering of the tooth or the gum, becomes exposed." — NHS Health Research Authority
When dentine is exposed, tiny fluid-filled tubes (dentine tubules) that run from the surface to the nerve are no longer protected. Hot, cold, sweet, or acidic foods and drinks can then trigger sharp, shooting pain.
How Common Is Tooth Sensitivity in the UK?
Tooth sensitivity is one of the most common dental problems in Britain:
| Statistic | Source |
|---|---|
| 31-35% of UK adults experience tooth sensitivity | Oral Health Foundation (2024) |
| Over 50% of European adults affected | European Multi-Centre Study (2023) |
| Most common age group: 20-40 years | Oral Health Foundation |
| Women affected more than men (56% vs 50%) | Haleon Research Study |
The prevalence is likely increasing, with 98% of study participants also showing signs of dental erosion.
What Causes Sensitive Teeth?
Several factors can expose the dentine and cause sensitivity:
1. Brushing Too Hard (Toothbrush Abrasion)
Aggressive brushing or using a hard-bristled toothbrush can wear away protective enamel over time. Side-to-side brushing is particularly damaging.
2. Dental Erosion from Acidic Foods
Frequent consumption of acidic foods and drinks (citrus fruits, fizzy drinks, wine, fruit juices) gradually dissolves tooth enamel.
3. Gum Recession
As gums naturally shrink with age or due to gum disease, the tooth roots become exposed. Unlike the crown, roots have no protective enamel layer.
4. Gum Disease (Periodontal Disease)
Plaque and tartar buildup causes gum inflammation and recession, exposing sensitive root surfaces.
5. Teeth Grinding (Bruxism)
Clenching or grinding your teeth, often during sleep, wears down enamel and can crack teeth.
6. Cracked or Damaged Teeth
Cracks, chips, or worn fillings allow temperature changes and bacteria to reach the sensitive inner tooth.
7. Tooth Whitening
Some patients experience temporary sensitivity after professional or at-home whitening treatments. This usually resolves within a few weeks.
Symptoms: When Is It Sensitive Teeth?
The main symptom is a sharp, sudden pain triggered by:
- Cold foods and drinks (ice cream, cold water)
- Hot beverages (tea, coffee)
- Sweet foods (chocolate, sugary drinks)
- Acidic foods (citrus fruits, tomatoes, vinegar)
- Cold air (breathing through your mouth in winter)
- Brushing or flossing
The pain can range from a mild twinge to severe discomfort lasting several hours. It may affect one tooth, several teeth, or all teeth.
How to Stop Sensitive Teeth Pain Immediately
If you are experiencing sensitivity right now, these steps can provide quick relief:
1. Rinse with warm salt water Dissolve half a teaspoon of salt in warm water and gently swish for 30 seconds. This reduces inflammation and bacteria.
2. Apply desensitising toothpaste directly Rub a small amount of sensitivity toothpaste onto the affected area with your finger. Leave it for a few minutes before rinsing.
3. Avoid temperature extremes Stick to room-temperature food and drinks until the sensitivity eases.
4. Take over-the-counter pain relief Ibuprofen or paracetamol can help manage pain while you arrange to see a dentist.
5. Use a soft-bristled toothbrush Switch to a soft brush and use gentle, circular motions rather than scrubbing.
Home Treatments That Work
Desensitising Toothpaste
This is the first-line treatment recommended by dentists. Look for toothpastes containing:
- Potassium nitrate – calms the nerve
- Stannous fluoride – blocks dentine tubules
- Potassium citrate – reduces nerve sensitivity
"Adults should brush at least twice daily with a toothpaste containing 1,350-1,500ppm fluoride." — Gov.uk, Delivering Better Oral Health Toolkit
How to use effectively:
- Brush twice daily for at least two minutes
- Apply a small amount directly to sensitive areas after brushing
- Do not rinse immediately – let the toothpaste work
- Allow 2-4 weeks to see results
Fluoride Mouthwash
A daily fluoride mouthwash can strengthen enamel and reduce sensitivity. Use at a different time to brushing (for example, after lunch) to maximise fluoride exposure.
Dietary Changes
- Limit acidic foods and drinks to mealtimes
- Use a straw for acidic drinks to reduce contact with teeth
- Finish meals with cheese or milk (neutralises acid)
- Avoid brushing immediately after eating acidic foods
Professional Treatments for Sensitive Teeth
If home treatments are not providing relief after 2-4 weeks, your dentist can offer several professional options:
Fluoride Varnish Application
Your dentist paints a concentrated fluoride gel or varnish onto sensitive areas. This strengthens enamel and blocks the dentine tubules. Multiple applications may be needed.
Dental Bonding
A tooth-coloured resin is applied to exposed root surfaces to cover and protect them. This is particularly effective for sensitivity caused by gum recession.
Gum Grafting
For severe gum recession, a periodontist can take tissue from elsewhere in your mouth (usually the palate) and graft it onto the receded area to cover exposed roots.
Root Canal Treatment
In severe cases where other treatments have failed, root canal treatment removes the tooth nerve entirely, eliminating sensitivity. This is considered a last resort as it is more invasive.
Sensitive Teeth Treatment Costs: NHS vs Private
NHS Treatment Costs (April 2024)
| Treatment | NHS Band | Cost |
|---|---|---|
| Examination and diagnosis | Band 1 | £27.40 |
| Fluoride varnish application | Band 1 | £27.40 |
| Dental bonding | Band 2 | £75.30 |
| Root canal treatment | Band 2 | £75.30 |
| Crown (after root canal) | Band 3 | £326.70 |
Important: If you need multiple treatments, you only pay the highest band cost. For example, if you need fluoride varnish (Band 1) and a filling (Band 2), you pay £75.30 total, not both.
Who Gets Free NHS Dental Treatment?
You qualify for free NHS dental care if you:
- Are under 18 (or under 19 in full-time education)
- Are pregnant or have had a baby in the last 12 months
- Receive certain benefits (Universal Credit, Income Support, etc.)
- Have a valid NHS Low Income Scheme certificate (HC2/HC3)
Private Treatment Costs
| Treatment | Private Cost Range |
|---|---|
| Examination | £50-£150 |
| Fluoride varnish | £30-£100 per session |
| Dental bonding | £95-£250 per tooth |
| Gum grafting | £400-£1,200 per tooth |
| Root canal | £300-£1,000 per tooth |
Private costs vary significantly by location and practice. London and South East practices typically charge 20-40% more than practices in other regions.
Special Circumstances
Sensitive Teeth During Pregnancy
Hormonal changes during pregnancy can cause gums to swell and recede, leading to temporary sensitivity. The good news is that all NHS dental treatment is free during pregnancy and for 12 months after your baby is born.
Sensitivity After Teeth Whitening
Post-whitening sensitivity is common but usually temporary. It typically resolves within 1-2 weeks. If you are prone to sensitivity, discuss this with your dentist before whitening treatment. They may recommend:
- Using desensitising toothpaste for 2 weeks before treatment
- Lower-concentration whitening products
- Shorter treatment sessions
Children and Sensitive Teeth
Sensitivity in children is less common but can occur, especially after dental procedures or if they consume many acidic foods. Children under 18 receive free NHS dental care, including fluoride treatments.
Prevention: Protecting Your Teeth Long-Term
Brushing Technique
"Use a circular brushing technique and avoid scrubbing the teeth." — NHS Oral Health Promotion Team
Proper brushing protects enamel:
- Use a soft or medium-bristled brush
- Hold the brush at a 45-degree angle to your gums
- Use gentle, circular motions
- Brush for at least 2 minutes
- Replace your toothbrush every 2-3 months
Critical Timing
"Wait one hour after eating before brushing." — Oral Health Foundation
Acid softens enamel temporarily. Brushing immediately after eating acidic foods can actually damage your teeth. Wait at least an hour, or rinse with plain water first.
Protect Against Grinding
If you grind your teeth at night, ask your dentist about a custom nightguard. This prevents further enamel wear and protects any dental work.
Regular Dental Visits
See your dentist regularly (usually every 6-12 months, depending on their recommendation). Early detection of enamel erosion, gum disease, or decay prevents sensitivity from developing.
When to See a Dentist
Non-Urgent (Book a Routine Appointment)
See your dentist if:
- Home treatments have not helped after 2-4 weeks
- Sensitivity is getting worse
- You notice gum recession
- Sensitivity affects your quality of life
Urgent (Contact Your Dentist Promptly)
Seek urgent care if:
- Pain lasts more than 2 days
- Pain affects sleep or daily activities
- Over-the-counter painkillers do not help
- You have swelling in your mouth or face
"See a dentist if you have toothache that lasts more than 2 days." — NHS
Emergency (Go to A&E)
Go to A&E immediately if you have:
- Severe swelling affecting breathing or swallowing
- Difficulty opening your eyes due to swelling
- Head or face injury with loss of consciousness, vomiting, or double vision
Frequently Asked Questions
Can sensitive teeth be cured permanently?
Sensitive teeth cannot be permanently cured once enamel is lost, as enamel does not regenerate. However, symptoms can be effectively managed long-term with desensitising toothpaste, fluoride treatments, or dental bonding. In severe cases, root canal treatment can eliminate sensitivity completely by removing the nerve.
How long does desensitising toothpaste take to work?
Most people notice improvement within 2-4 weeks of regular use. For best results, brush twice daily and apply a small amount directly to sensitive areas after brushing. Continue using the toothpaste even after symptoms improve.
Why are my teeth suddenly sensitive?
Sudden sensitivity often indicates a cracked tooth, new cavity, loose filling, or recent dental work. It can also result from starting a new whitening product or changes in diet (more acidic foods). If sensitivity appears suddenly, see your dentist to rule out underlying problems.
Does the NHS treat sensitive teeth?
Yes. Fluoride varnish application is classified as Band 1 treatment (£27.40). If more extensive treatment is needed, such as dental bonding or root canal, this falls under Band 2 (£75.30) or Band 3 (£326.70) for crowns. Children under 18 receive treatment free.
Is sensitive teeth a sign of something serious?
Usually not. Most sensitivity is caused by enamel wear or gum recession, which can be managed effectively. However, sensitivity can sometimes indicate decay, a cracked tooth, or gum disease. If sensitivity persists, worsens, or affects only one tooth, see your dentist to rule out these conditions.
What is the best toothpaste for sensitive teeth UK?
Look for toothpastes containing potassium nitrate, stannous fluoride, or potassium citrate with at least 1,350ppm fluoride. Popular options in the UK include Sensodyne, Colgate Sensitive Pro-Relief, and Oral-B Sensitivity & Gum. Your dentist can recommend the most suitable product for your needs.
Can I whiten sensitive teeth?
Yes, but with precautions. Use desensitising toothpaste for 2 weeks before whitening, choose lower-concentration products, and consider shorter treatment sessions. Consult your dentist before whitening if you have existing sensitivity.
How can I eat ice cream with sensitive teeth?
Let ice cream warm slightly before eating, take small bites, and try to keep it away from your most sensitive teeth. Using desensitising toothpaste regularly can reduce sensitivity enough to enjoy cold treats more comfortably.
Find a Dentist for Sensitive Teeth Treatment
If home treatments are not providing relief, it is time to see a dental professional. A dentist can identify the underlying cause of your sensitivity and recommend the most effective treatment.
Ready to book? Use our search tool to find NHS and private dentists near you who can help with sensitive teeth treatment.
