Tooth sensitivity: causes, treatment and how to eliminate it permanently
Do you feel a sharp pain or a "whiplash" when you eat or drink something cold or hot? tooth sensitivity It is one of the most common complaints among adults, and it can appear suddenly or be constant. MAG Dental Madrid, in HortalezaIn Madrid, we explain clearly and professionally why it happens, how to treat it, and what to do to prevent it from recurring.
What is tooth sensitivity?
La tooth sensitivity It is a brief but intense pain that occurs when the enamel protecting the tooth wears away or the gums recede, exposing the dentin, the inner layer of the tooth. This exposure allows stimuli such as cold, heat, sweets, or even air to reach the nerve, generating a painful sensation.
Although it is usually temporary, if the Tooth sensitivity is constant or worsens over time, it may indicate a more serious problem, such as tooth decay or an injury to the tooth root.
Most common causes of tooth sensitivity
Sensitivity doesn't appear randomly. Knowing its cause is key to treating it correctly. These are the most common causes:
1. Aggressive tooth brushing
Brushing too hard or with a hard-bristled brush can wear down enamel and cause gums to recede. This exposes the dentin, leading to sensitivity.
2. Gingival recession
When the gums recede (due to periodontal disease or poor brushing), the tooth roots are exposed and the tooth becomes more sensitive.
3. Bruxism
Clenching or grinding your teeth, especially at night, creates micro-cracks in the enamel and promotes tooth decay. Constant tooth sensitivity.
4. Acidic diet
As reported by Council of dentistsRegular consumption of carbonated drinks, citrus fruits or vinegars can erode tooth enamel.
5. Recent dental treatments
After a deep cleaning, whitening, or filling, it's normal to feel sudden tooth sensitivitywhich usually disappears in a few days.
6. Tooth decay or cracks
Lesions that affect the enamel leave the dentinal tubules exposed and can cause a Intense pain due to tooth sensitivity.
Tooth sensitivity in a single tooth
When the Tooth sensitivity appears in a single toothThis usually indicates a localized problem, such as a cavity, a crack, or a deteriorated restoration. It can also be due to localized gingival recession. In these cases, the dentist should take an X-ray to confirm the cause and apply the appropriate treatment.
How to get rid of tooth sensitivity
Eliminating tooth sensitivity requires a personalized diagnosis, but there are very effective treatments depending on the cause:
1. Professional desensitizing paste
Using a specific toothpaste with potassium nitrate or stannous fluoride helps to block the dentin canals and reduce sensitivity. It is the first recommended step for most patients.
2. Application of fluoride varnishes or gels
During the consultation, the dentist can apply products with a high concentration of fluoride to strengthen the enamel and protect sensitive areas.
3. Dentin sealants
If the damage is localized, materials are placed that seal the dentin tubules and prevent pain.
4. Periodontal treatment
In cases of receding gums, deep cleaning treatment or even gum grafts may be necessary.
5. Treatment of bruxism
If the cause is teeth grinding, a night splint to prevent wear and tear and inflammation of the nerve.
6. Restoration or endodontics
When tooth sensitivity becomes intense and constant painThe nerve may be affected and require root canal treatment (endodontics).
Cinfa Salud also talks about it in this article.
Constant or sudden tooth sensitivity: when to worry?
An sudden tooth sensitivity The discomfort after eating something cold or acidic is usually mild and temporary.
Instead, a Constant tooth sensitivity A rash that appears without a clear cause may indicate internal damage or infection. In these cases, it is essential to see a dentist as soon as possible to avoid complications.
Tooth sensitivity: causes and professional treatment
En MAG Dental MadridWe evaluate each case with a clinical and radiographic examination. Treatment is tailored to the cause.
| Main cause | Recommended treatment |
|---|---|
| Worn enamel | Fluoride application and sealants |
| receding gums | Periodontal treatment or graft |
| Bruxism | Custom night guard |
| Tooth decay or crack | Filling or root canal |
| General hypersensitivity | Desensitizing paste and varnish |
The goal is not only to eliminate pain, but to prevent tooth sensitivity from recurring in the future.
Does tooth sensitivity go away?
Yes. In most cases, the Tooth sensitivity is eliminated Completely with the right treatment and good hygiene habits. The key is in not to ignore it Don't self-medicate: pain is a sign that something needs attention.
Best product for sensitive teeth
Products with compounds such as potassium nitrate, stannous fluoride o arginine They are the most effective.
Each one acts differently, but they all seek to protect the dental nerve and seal the exposed tubules.
-
Potassium nitrate: It calms the tooth nerve, relieving pain quickly.
-
Tin fluoride: It creates a protective layer that blocks stimuli and strengthens the enamel.
-
Arginine: It promotes the natural repair of dentin and maintains oral pH balance.
These components, combined with good brushing technique and regular checkups, achieve lasting results and prevent sensitivity from recurring.
Your dentist can recommend the best product for sensitive teeth depending on your case, since some contain professional concentrations not available in pharmacies.
| Ingredients | Main action | Patient benefit |
|---|---|---|
| Potassium nitrate | Desensitizes the dental nerve | Fast pain relief with cold or heat |
| Tin fluoride | It seals the dentinal tubules | It strengthens enamel and protects the tooth |
| Arginine | Stimulates natural remineralization | It prevents long-term sensitivity |
Prevention: How to prevent tooth sensitivity from returning
- Use a soft bristle brush and the correct brushing technique.
- Avoid very acidic or sweet foods.
- Don't brush your teeth right after eating.
- Attend regular check-ups.
- If you clench your teeth, ask about a night guard.
Proper prevention is the best investment to keep your teeth strong and free from discomfort.
Frequently asked questions about tooth sensitivity
What to do when you have sensitive teeth?
Avoid hot or cold stimuli, use a desensitizing toothpaste, and make an appointment with your dentist to identify the cause.
What are the causes of tooth sensitivity?
Enamel erosion, gum recession, cavities, bruxism, or recent dental treatments are the most frequent causes.
How can you tell if it's tooth pain or sensitivity?
Sensitivity pain is brief and occurs in response to specific stimuli (cold, heat, sweet). If the pain is constant, it could be due to tooth decay or nerve inflammation.
How long does tooth sensitivity last?
It depends on the cause. In mild cases, it may disappear in a few days; in chronic cases, it requires professional treatment.
What to take for tooth sensitivity?
Medication is not recommended. The correct approach is to use desensitizing products and see a dentist to treat the underlying cause of the problem.
What causes tooth sensitivity?
Mainly due to enamel wear or exposure of the tooth root, which leaves the nerve more vulnerable.
How to cure tooth sensitivity?
With the appropriate treatment: desensitizing paste, fluoride application, splint, sealant or endodontics, depending on the diagnosis.
Conclusion
La tooth sensitivity It should not be ignored. Although it may seem minor, it could be the first warning sign of a bigger problem. MAG Dental MadridOur specialists diagnose the exact cause and apply effective treatments to eliminate pain and protect your teeth in the long term.
Request your free consultation and regains comfort in eating, drinking, and smiling.
Diploma of Advanced Studies in Clinical Techniques in Dentistry. (2002 - 2003). University of Barcelona.
Postgraduate Diploma in Advanced Dental Aesthetics. Catalan Society of Odontostomatology. Barcelona (2004 -2005).
- Swollen gums during pregnancy: causes, symptoms, and how to care for them - November 14, 2025
- Black gums: causes, treatment and how to lighten them - November 7, 2025
- Gap between implant and gum: causes and solutions - November 4, 2025
