Sensitive Teeth

Tooth sensitivity is caused by the gradual exposure of the softer part of your tooth that lies under the tooth enamel, called "dentine".

Dentine has tiny tubes ('tubules') that lead to the nerve and are filled with fluid. Eating or drinking foods and drinks that are hot, cold or sweet can cause a change in fluid movement. This fluid movement causes the nerve endings to react in response, triggering a short, sharp pain.

There are several reasons why dentinal tubules get exposed to oral environment causing sensitivity. Some of them are listed below.

• Tooth decay (cavities)
• Fractured teeth
• Worn fillings
• Gum disease
• Exposed tooth root
• Worn tooth enamel(erosion/attrition)

Teeth Whitening

Tooth whitening treatments are becoming increasingly popular. Typically, the ingredients in the products used for whitening are hydrogen peroxide or carbamide peroxide. These are usually administered through a specially made tray (similar to a gum-shield). As the whitening agent is broken down, oxygen gets into the enamel on the teeth and the tooth colour is made lighter. Tooth sensitivity is widely recognised as being associated with tooth whitening treatments. A report suggests that 75% of patients who have had their teeth professionally whitened experienced some sensitivity. Be sure to discuss this with your dentist prior to any treatment.

Sensitive teeth can be treated. Your dentist may recommend desensitizing toothpaste or an alternative treatment based on the cause of your sensitivity. Proper oral hygiene is the key to preventing tooth pain. Ask your dentist if you have any questions about your daily oral hygiene routine or concerns about tooth sensitivity.