Key takeaways
- Exposed dentin causes sensitivity.
- Acid and hard brushing wear enamel.
- Gum recession exposes roots.
- Sensitivity toothpaste helps.
- Sudden or lasting pain needs a dentist.
That sharp twinge from ice cream or hot coffee is one of the most common dental complaints. Here's what causes it and what you can do.
Why teeth become sensitive
Exposed dentin
Dentin contains thousands of microscopic tubules leading to the nerve. When enamel or gums no longer cover it, triggers reach the nerve.
Enamel wear
Acidic foods and drinks, reflux and brushing too hard gradually thin enamel.
Gum recession
Receding gums expose tooth roots, which have no enamel protection.
Common triggers and fixes
| Trigger or cause | What helps |
|---|---|
| Cold drinks and ice cream | Sensitivity toothpaste used daily |
| Acidic foods | Rinse with water, wait before brushing |
| Hard brushing | Soft brush, gentle pressure |
| Teeth grinding | Night guard from your dentist |
| Recent whitening | Pause and use gentler products |
Supporting your teeth and gums
Choose a soft-bristled brush and a toothpaste for sensitive teeth. Limit soda, citrus juices and sports drinks. Eat calcium- and magnesium-rich foods. Oradentum supports strong teeth and healthy gums with magnesium, manganese, vitamin C and zinc, and its bonus eBook The Fast Way to Master Your Dental Fears includes tips on sensitivity.
Sources
- American Dental Association – "Sensitive teeth."
- Cleveland Clinic – "Tooth sensitivity."
- Mayo Clinic – "Sensitive teeth: treatment."
Common questions
Why are my teeth sensitive to cold?
Usually because dentin is exposed through enamel wear or gum recession.
Does sensitivity toothpaste work?
Many people find relief with regular use over a few weeks.
When should I worry about tooth sensitivity?
If it is sudden, severe, lasting or in one tooth, see a dentist.