What causes sensitive teeth?
You may notice sensitivity if your gums have receded. Gums cover the roots of your teeth like a protective blanket. When the blanket is gone, your roots are exposed. Exposed roots contain small pores that lead directly to the nerve of the tooth. Pressure and cold can stimulate the tooth nerve causing pain and discomfort. Normally, your gums would prevent these stimuli from reaching the nerves. There are primarily two reasons why your gums recede. The first is improper and heavy-handed brushing of your teeth. Over time, this heavy-handed approach can also wear away tooth enamel. The second reason is poor oral hygiene. When plaque builds up around your teeth and gums, it hardens into tartar. Bacteria in tartar cause gingivitis and periodontal disease. Gum recession can result. Long-term sensitivity can be a sign of other problems. Ask your dentist how you can prevent gingivitis and periodontal disease and avoid sensitive teeth.
