Frequently Asked Questions

  • All Topics
  • Tooth Sensitivity
  • Acid Erosion
  • Sensodyne Toothpaste
  • Sensodyne Toothbrush

Tooth sensitivity

  • What is tooth sensitivity?

    Dentinal hypersensitivity, or tooth sensitivity, is a common dental problem that can arise when dentine, the inner part of the tooth, becomes exposed. It’s a condition that can develop over time, as a result of common problems such as receding gums and enamel wear.

     

    Find out What Causes Sensitive Teeth

  • What causes tooth sensitivity?

    Tooth sensitivity can start to happen when the softer, inner part of the tooth called ‘dentine’ becomes exposed. Dentine lies under the enamel and the gums. Thousands of microscopic channels run through the dentine towards the centre of the tooth. Once the dentine is exposed, external triggers (such as a cold drink) can stimulate the nerves inside the tooth, resulting in the characteristic short, sharp sensation of tooth sensitivity.

     

    See What Causes Sensitive Teeth to find out more

  • How can I protect myself against sensitivity?

    Talk to your dentist about the symptoms you are experiencing. They can confirm that tooth sensitivity is the cause of your problem and then advise you on how to care for sensitive teeth, for example, what is the best toothbrushing technique for you, how often and when. In addition, you can protect from tooth sensitivity by changing your regular toothpaste to a daily use toothpaste specially formulated to protect sensitive teeth, such as Sensodyne

     

    See Ongoing Oral Care For Sensitive Teeth to find out more

  • What triggers sensitive teeth?

    A range of things can trigger a sensation for people with sensitive teeth. Here’s some of the most common triggers for tooth sensitivity:

    • Cold foods or beverages
    • Hot foods or beverages
    • Sugary foods
    • Sour foods
    • Breathing in cold air
    • Brushing teeth 

    See Common Triggers of Sensitive Teeth to find out more.

  • Is tooth sensitivity a common dental problem?

    Yes. Sensitive teeth may affect as many as 1 in 3 people, even young adults. Most sufferers are between 20 and 50 years old.

  • Is tooth sensitivity a sign of a more serious dental problem?

    There can be many different causes of dental sensation other than tooth sensitivity. So if you are feeling any  sensation or discomfort, especially if it persists, the best thing you can do is visit your dentist and seek professional advice. 

    See Other Reasons for Sensitivity to find out more.

  • Can brushing too hard cause sensitive teeth?

    Brushing overly aggressively or more frequently than your dentist recommends can contribute to gum recession and wear enamel. Over time, receding gums and enamel loss can lead to exposed dentine and tooth sensitivity.

    Find out How to brush and ways to treat sensitive teeth.

Acid erosion

  • What is acid erosion?

    The wearing away of enamel, caused by acid in our diet, is called "Acid Wear." As few as four acidic "occasions" throughout the day can put our enamel at risk from acid wear. If your tooth enamel is at risk of acid wear, ask your dentist about the issue, for dietary advice, how best to consume the many acidic foods and drinks in the modern diet and the best oral hygiene routine for you.

  • What causes acid erosion?

    Over time, acidic foods and drinks can cause your teeth enamel to wear down. These include fruit and fruit juices, carbonated drinks, black coffee or tea, wine and anything that tastes sharp, like ketchup or salad dressing. To help protect your teeth against acid erosion, talk to your dentist and use a fluoride toothpaste specially developed for people at risk of acid wear. Ask your dentist for dietary advice on the best oral hygiene routine for you and how best to consume the many acidic foods and drinks in the modern diet.

  • Can acid erosion cause teeth sensitivity?

    Yes. Acid erosion can contribute to enamel wear. Enamel is the hard outer layer of a tooth. Although it’s harder than any other substance in the body, with time it can gradually be worn away to expose the layer of dentine beneath, which may lead to tooth sensitivity.

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[1] Addy, M. (2002) 'Dentine hypersensitivity: new perspectives on an old problem', International Dental Journal, 52(S5P2), pp. 367-375.