What are the Sensitive Teeth Causes and Available Treatments

Causes and treatments for sensitive teeth

Causes and treatments for sensitive teeth

What can I do about sensitive teeth?


Sensitive Teeth Causes

Sensitive teeth occur when tooth enamel becomes worn, or roots of the teeth get exposed causing dentin hypersensitivity or root sensitivity known as sensitive teeth.

Hypersensitivity can lead to a sharp, temporary pain with hot/cold drinks or food, sensitivity when brushing your teeth, and unpleasant reaction to sweet or sour foods or even a breeze of cold air.

Discomfort can be caused by other factors such as a cavity, a worn filling, gum disease or also a cracked or chipped tooth which, if not appropriately treated, will worsen over time.

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How to get rid of sensitive teeth - Preventing Tooth Sensitivity

  • Maintain Good Oral Health – follow proper brushing and teeth flossing techniques to thoroughly clean your teeth and mouth twice a day.

  • Use a soft bristle toothbrush and desensitizing toothpaste.

  • Avoid acidic foods.

  • Regular dentist visits – have your teeth cleaning regularly by a dental professional to remove plaque and tartar buildup.

  • Everything starts with proper care and by taking time to care for your teeth - you can avoid tooth sensitivity in the first place.


Reasons your teeth might be sensitive

1.    Brushing too hard – one of the common reasons for sensitivity is pressing too hard on the toothbrush. By pushing harder, you are not removing more plaque but, instead, damaging a layer of enamel by brushing too hard side to side. Try using a soft bristle toothbrush and work at a 45-degree angle to the gum line and avoid excessive pressure. Check out our video in our blog to learn a proper brushing technique.

Work a 45-degree angle starting from the gum line

Work a 45-degree angle starting from the gum line

Use soft bristle toothbrush

Use soft bristle toothbrush

  2.    Teeth whitening – teeth bleaching too often can cause teeth sensitivity. The good news is that teeth sensitivity from bleaching is usually temporary and when you stop, tooth sensitivity will fade away. Consult with our dentist on how teeth whitening can affect you.

3.    Teeth grinding – (Bruxism) is a common reason for teeth sensitivity because it wears down teeth enamel. If you wake up in the morning with a headache or sore jaw muscles there is a good chance you grind your teeth at night. Stress is the most common reason for teeth grinding. The good news is that bruxism can be helped by wearing a night guard when you sleep. Learn more about teeth grinding in our blog.

4.    Acidic drinks and food – Carbonated sodas, citrus fruits, candies, high sugar carbs, wine – all these choices can slowly remove tooth enamel. If you have acidic drinks or foods, drink water and wait up to an hour before brushing your teeth (to reduce acidity).

5.    Gum disease – plaque and tartar can build up on your teeth and may cause gums to recede, exposing roots and causing sensitivity. The longer you wait before treating gum disease – the more chances it can destroy the structural support of your teeth. Learn more about gum disease and available treatments.

6.    Cracked tooth – when you break or crack a tooth it can go all the way to the bottom of the root. Treatment of a cracked tooth depends on the size of the crack and other factors, and your dentist can recommend the best solution. 


Once our dentist can identify the cause of your tooth sensitivity – treatment options include:

 1.    A desensitizing toothpaste – it contains potassium nitrate which with time, blocks pathways through the teeth which causes tooth sensitivity. It can take up to four (4) weeks to reduce teeth sensitivity.

 2.    Fluoride Treatment – your dentist may apply fluoride to the sensitive area of your teeth to strengthen tooth enamel and reduce discomfort and may suggest continuing with prescription fluoride treatment at home using a custom tray to help with the application.

3.    Dental Fillings – if gums recede and exposed roots are the cause of the tooth sensitivity, one way to address it is to place dental fillings on the exposed roots – strengthening tooth core.

4.    Surgical Gum Graft – another method used is a placement of a synthetic gum or a tissue taken from another area of the mouth to cover exposed teeth roots. This can protect exposed roots and reduce sensitivity.

5.    Root Canal – in some cases tooth sensitivity can become severe. When other treatments are not effective, your dentist may recommend a root canal treatment. Although this procedure is more invasive it is considered the best technique to eliminate tooth sensitivity.