07Dec

Is tooth sensitivity a common condition?
Sensitive teeth is one of the most common complaints among dental patients. At least 45 million adults in the United States and 5 million Canadians suffer at some time from sensitive teeth.

How can I avoid sensitivity?
Some toothpastes contain abrasive ingredients that may be too harsh for people who have sensitive teeth. Ingredients found in some whitening toothpastes that lighten and/or remove certain stains from enamel, or sodium pyrophosphate, the key ingredient in tartar control toothpastes may increase tooth sensitivity. To prevent sensitivity from occurring, use a soft bristled toothbrush. Avoid using hard bristled toothbrushes and brushing your teeth too hard, which can wear down the tooth's root surface and expose sensitive spots. The way to find out if you're brushing your teeth too hard is to take a good look at your toothbrush. If the bristles are pointing in multiple directions, you're brushing too hard.

01Dec

Why are my teeth sensitive? 
Tooth sensitivity is caused by the stimulation of nerve cells within tiny tubules located in the dentin (the layer of tissue found beneath the hard enamel that contains the inner pulp). When the hard enamel is worn down or gums have receded causing the tiny tubules to be exposed pain can be caused by eating or drinking food and beverages that are hot or cold; touching your teeth; or exposing them to cold air.

Hot and cold temperature changes cause your teeth to expand and contract. Over time, your teeth can develop microscopic cracks that allow these sensations to seep through to the nerves. Exposed areas of the tooth can cause pain and even affect or change your eating, drinking and breathing habits. Taking a spoonful of ice cream, for example, can be a painful experience for people with sensitive teeth.