What Causes Tooth Sensitivity?

What Causes Tooth SensitivityPerhaps you’ve been noticing lately that downing an ice-cold glass of milk leaves you reeling in pain … then it seems that wincing with your mouth open causes your teeth to hurt.  Tooth sensitivity just didn’t happen overnight it is a gradual process that begins when the movement of fluid located within tiny tubes in the dentin (the layer of tissue found beneath the hard enamel that contains the inner pulp of the tooth),  begins to cause nerve irritation.  When the hard enamel on your teeth gradually begins to wear down, especially as you get older, or your gums start to recede, these tiny tube surfaces are then exposed causing you to wince after eating, drinking hot or cold beverages, touching your teeth, or even just exposing them to cold air – suddenly a short, sharp pain and aching thereafter occurs.
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