Sensitive Teeth: What Causes Them & What Can You Do About It?

That sudden zing after a sip of something cold can quickly take the pleasure out of a granita, ice cream, or chilled drink. Sensitive teeth are common, but recurring discomfort should not simply be ignored.

Why Do Teeth Become Sensitive?

A tooth’s protective outer layer is called enamel. Beneath it lies dentine, which contains tiny channels leading towards the nerves inside the tooth. When enamel becomes worn or gums recede, hot, cold, sweet, or acidic foods can reach these channels and trigger a short, sharp sensation.

Common sensitive teeth causes include:

• Brushing too firmly
  
• Gum recession or gum disease
  
• Tooth decay
  
• Cracked teeth or damaged fillings
  
• Teeth grinding
  
• Frequent consumption of acidic foods and drinks
  
• Whitening treatments
  

People with very sensitive teeth may experience discomfort when breathing in cold air or even during normal brushing.

Why Are My Front Teeth Sensitive?

This is mostly due to their position. Because they are front and centre, they regularly come into contact with acidic drinks and cold foods, they’re also the mostly likely to be brushed aggressively. However, if the sensitivity is affecting one particular tooth, especially when accompanied by persistent pain, then you should get it checked by a dentist.

Is It Normal to Have Sensitive Teeth After Cleaning?

Teeth sensitivity after cleaning by a dental hygienist are not unusual. Removing plaque and tartar can temporarily expose areas that were previously covered, while the gums may feel tender after a thorough clean. This should normally settle within a few days but, if it doesn’t, you should contact your dentist.

Are There Any Home Remedies for Sensitive Teeth?

Home remedies cannot repair damaged enamel or treat decay. However, avoiding very hot, cold, acidic, or sugary foods, using a soft toothbrush, and rinsing with lukewarm salt water may offer temporary comfort. Persistent sensitivity should always be assessed by a dentist.

What Can You Do About Sensitive Teeth?

Start by brushing gently twice daily with fluoride toothpaste and a soft toothbrush. The Sensodyne Repair & Protect Toothbrush, for example, has flexible bristles designed to provide gentle cleaning and help protect against overbrushing.

Toothpastes created for sensitive teeth can also help build protection when used consistently. Sensodyne Repair & Protect Deep Repair contains stannous fluoride and is formulated to protect sensitive areas. Meanwhile, Sensodyne Sensitivity & Gum combines sensitivity protection with care for plaque-related gum concerns.

When Should You See a Dentist?

Arrange a dental appointment if sensitivity is severe, affects one tooth, lasts longer than a few days, or is accompanied by swelling, pain when biting, bleeding gums, or a bad taste. A dentist can identify the underlying cause rather than simply managing the sensation.

Enjoy Your Favourite Foods Without the Zing

Sensitive teeth can make everyday pleasures (from a cold drink to a hot cup of coffee) less enjoyable, but the right daily habits can make a difference. Brush gently, use products designed for sensitivity, and pay attention to any triggers that make the discomfort worse.
Most importantly, do not simply put up with sensitive teeth or pain that keeps returning. A dentist can identify whether worn enamel, gum recession, decay, or another problem is responsible and recommend the most appropriate way forward.

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