Gloss & Floss Answers · Oral Health & Prevention
Why are my teeth sensitive?
Direct answer
Teeth can be sensitive when dentine is exposed, enamel is worn, gums have receded, a filling is leaking, a tooth is cracked, decay is present or the tooth nerve is irritated. Sensitivity to cold that disappears quickly is often different from lingering pain, night pain or bite pain. Persistent, worsening or one-sided sensitivity should be assessed by a dentist.
Why sensitivity happens
The outer enamel layer protects the tooth. When enamel is worn or dentine is exposed near the gumline, temperature and touch can trigger short, sharp sensitivity.
Sensitivity can also be caused by decay, cracks, recent dental treatment, tooth grinding, acid erosion or problems around old fillings and crowns.
Common sensitivity triggers
- Cold drinks or cold air.
- Hot drinks or hot food.
- Sweet foods or drinks.
- Toothbrushing near the gumline.
- Acidic drinks such as soda, juice or energy drinks.
- Whitening products.
- Biting pressure on a cracked or inflamed tooth.
Sensitivity patterns
| Pattern | Possible cause | Recommended step |
|---|---|---|
| Short cold sensitivity at several teeth | Exposed dentine, gum recession or enamel wear. | Discuss prevention and desensitizing options. |
| Sensitivity in one tooth | Decay, crack, leaking filling or nerve irritation may be present. | Book dental assessment. |
| Lingering pain after cold or heat | The nerve may be inflamed. | Dental diagnosis is needed. |
| Sensitivity with bite pain | A crack, high filling or root inflammation may be involved. | Avoid chewing on the tooth and seek care. |
| Sensitivity after whitening | Temporary tooth sensitivity can occur. | Follow professional whitening instructions and report severe symptoms. |
What happens at Gloss & Floss Dental Care®?
At Gloss & Floss Dental Care® in Stockholm, we examine the teeth, gums, fillings, bite and possible erosion or wear. X-rays may be needed if decay, cracks or deeper problems are suspected.
Treatment depends on the cause. Options may include fluoride, desensitizing advice, repairing a filling, treating decay, bite adjustment, gum care or further treatment if the nerve is affected.
When should you seek care?
Seek care if sensitivity is severe, one-sided, worsening, lasts after the trigger is gone, wakes you at night or is combined with swelling, bite pain or a broken tooth.
Practical advice: Do not assume all sensitivity is harmless. The pattern of pain is important for diagnosis.
Frequently asked questions
Can sensitive teeth improve?
Yes, if the cause is exposed dentine or mild irritation. But decay, cracks or nerve problems need diagnosis and treatment.
Should I use sensitive toothpaste?
It can help some patients, but it should not replace assessment if symptoms are persistent, severe or localized to one tooth.
Can brushing too hard cause sensitivity?
Yes. Brushing too hard or using a hard brush can contribute to gum recession and exposed dentine.
Can acid drinks make teeth sensitive?
Yes. Acidic drinks can contribute to enamel erosion and sensitivity over time.
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Disclaimer
This article provides general information from Gloss & Floss Dental Care® in Stockholm. It does not replace a dental examination, diagnosis or treatment plan.
