10 Possible Reasons Why You're Experiencing Tooth Sensitivity

External link opens in new tab or windowTooth sensitivity can be debilitating and interfere with your everyday life. As if having a toothache wasn’t bad enough, the pain can range from mild to severe, making it difficult to eat cold or hot food without flinching. So what causes this uncomfortable sensation? There are several possible reasons that you may be experiencing tooth sensitivity:

1. Worn Enamel

The enamel is the protective layer on your teeth that shields the inner, more sensitive layers. When enamel erodes due to age, genetics, or improper brushing/flossing habits, it exposes the underlying dentin and can cause tooth sensitivity.


The best course of action is to always take care of your teeth, regularly brush and floss, andExternal link opens in new tab or window avoid too much sugar.

2. Exposed Tooth Roots

As gums recede with age, the sensitive roots of teeth become exposed. And when this happens, the sensitive nerve endings in those roots become more easily stimulated and can cause tooth sensitivity.

3. Cavity

A cavity is essentially a space within the tooth that forms as a result of tooth decay. If left untreated, a cavity can cause an infection and lead to increased discomfort. As always, cavities require a filling from a dentist to repair the cavity and prevent further damage.

4. Broken or Cracked Tooth

The sensitive inner layers of a tooth are protected for a reason. So when a broken or cracked tooth occurs, it can cause pain and sensitivity. External link opens in new tab or windowConsult your dentist immediately to assess the extent of the damage and see what can be done to repair the tooth so that your radiant smile can stay in shape.

5. Tooth Decay

As tooth decay progresses, it eats away at enamel and exposes sensitive dentin. Tooth decay can feel awful—it can lead to pain as well as an unsightly appearance.


This uncomfortable dental problem results from bacteria in the mouth and can be prevented by performing the following best dental practices: brushing twice a day, flossing daily, drinking plenty of water, and eating healthy foods.

6. Brushing Too Hard

Brushing your teeth is great, but there is such a thing as brushing too hard and damaging your teeth. This causes enamel erosion and leads to sensitivity and discomfort. Be gentle when brushing, using a soft-bristled toothbrush and short, circular strokes.

7. Gum Disease

Inflamed or receding gums are not only uncomfortable, but they’re also a sign ofExternal link opens in new tab or window gum disease. This can lead to exposed roots and sensitivity in the teeth. And if it's left untreated, gum disease can become quite serious, so it's best to take preventative measures such as the following:


  • Brush twice a day

  • Floss regularly

  • Maintain regular dental visits

8. Strong Teeth Whitening Products

While teeth whitening products are all the rage, be sure to use the right ones. If you use products that are too strong, they can do more harm than good and lead to sensitivity. A good rule of thumb is to look out for products that are ADA approved and have milder ingredients, such as hydrogen peroxide or baking soda.

9. Teeth Grinding

Grinding or clenching teeth can wear down enamel and expose sensitive dentin. Oftentimes, people experience this while they're sleeping and may not even be aware they're doing it until they wake up with pain and sensitivity in their teeth.


A mouth guard is a great way to protect your teeth from grinding and can be provided by your dentist.

10. Recent Dental Procedures

Procedures like crowns or fillings can lead to temporary sensitivity. But if you’re feeling pain or discomfort for longer than a few days, it's important to consult your dentist as the procedure may need to be adjusted or re-done.

Rid Yourself of Tooth Sensitivity with North Pole Dental

Now that you know the possible causes of the sensitivity, you’re better equipped to handle it. But it’s always best to seek professional advice from your dentist just in case. At North Pole Dental, our team is dedicated to providing quality dental care and helping you keep your teeth healthy and strong.External link opens in new tab or window 


External link opens in new tab or windowContact us today to book an appointment and get rid of your tooth sensitivity for good!