Teeth Sensitive To Cold: What You Should Know

According to the Australian Dental Association, tooth sensitivity, also known as dentine hypersensitivity, can be caused by a number of factors. Most dentine  hypersensitivity is related to exposed root surfaces of teeth. However, sensitivity could also result from a cavity, or a lost or loose filling. 

Your teeth are covered by a layer of enamel. Enamel on your teeth is the hardest and most highly mineralized substance in your body. This enamel surface covers the part of the tooth above the gumline; however, the root, which doesn't have this hard protective enamel layer, can become exposed for various reasons, including gum recession. The root is covered by a thin and easily worn layer of cementum, and beneath this layer, is dentine. It is the microscopic dentinal tubules that transmit the temperatures of the foods that we eat straight to the nerve cells of the tooth. As a result of dentine exposure, you can have teeth sensitive to cold. 

The best treatment for dentine hypersensitivity will depend on the cause of your sensitivity, as well as other elements. Your dental professional will evaluate your condition and suggest treatment options that are right for you. Whether they're for use at home or in the dental chair, these treatments could include one or a combination of the following:

• Special toothpastes
• In-office treatments
• Dietary changes
• Bonded fillings to cover the exposed area
• Gum grafting to cover the receding gum

Fluoride is a tool to alleviate sensitive teeth. Fluoride works by strengthening the enamel and dentine, thus reducing sensitivity. All of these treatments should be combined with a good home care regimen that includes proper toothbrushing with a soft-bristle toothbrush. Proper nutrition is important too, because a diet that frequently includes acidic foods and drinks can contribute to or aggravate sensitivity.

More involved treatment includes dental work that restores and protects the exposed root or lost tooth structure. Your dentist will recommend the best treatment, and it may include referrals to other dental specialists.

Teeth sensitive to cold and other stimuli are a very common problem. Fortunately, your sensitivity could be instantly alleviated. The first step is to schedule an appointment with your dental professional, who has the knowledge and the tools to assess and treat your individual needs. Diminishing or eliminating sensitive teeth will have a positive effect on your oral and overall health.