Are your teeth sensitive? When a cold dr

Are your teeth sensitive?

When a cold drink causes tooth pain, the root structure of one or more teeth may be overly exposed. If so, the focus should be on the “dentin” layer, which lies beneath the enamel and contains millions of tiny tubules connected to nerve endings. Gum recession and enamel erosion lay bare this sensitive tissue, which is usually protected by enamel and gums. Even hard brushing can wear away gum tissue to the point where dentin tubules are exposed to hot and cold drinks. Dentin can also become irritated by the overuse of tooth-whitening agents at home. In any case, the dentist can help reduce sensitivity by sealing exposed dentin and eliminating the cause(s) of dentin exposure. http://ow.ly/i/3bV72

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