Dentine sensitivity is a short, sharp pain from exposed dentine, triggered by something such as cold, touch or a stream of air. Not every twinge from a cold drink is sensitivity, however. Decay, a cracked tooth or a problem with a filling can produce similar symptoms.
Why does the tooth react?
Dentine lies beneath enamel and beneath the cementum covering the root. Its tiny tubules can transmit stimuli when the surface becomes exposed. Gum recession or loss of protective tooth tissue can contribute. Identifying the cause matters, rather than only trying to suppress the symptom.
Describe the pain clearly
Tell your dentist whether one area or several teeth are affected, what triggers the pain and how long it lasts afterwards. Pain that starts by itself, wakes you at night or becomes worse needs particular attention. Mention recent whitening, dental treatment or a change of toothpaste.
What might help?
Care depends on the diagnosis. Options may include changing your brushing technique, an appropriate toothpaste, a product applied at the practice or treatment of the underlying problem. Scrubbing harder and using highly abrasive products can make matters worse.
Avoid repeatedly testing the tooth with ice. A note of when the pain happens is more helpful. If symptoms continue, do not assume that the teeth are simply sensitive. An examination can distinguish sensitivity from conditions needing a different treatment.