This Monday I will be interviewed by a writer about sensitive teeth. Interestingly enough this month I have had many patients (more than usual) tell me their teeth are sensitive. I am attributing it to the cold snap we have here in New York. It is not just cold air that afflicts the teeth, it can be cold water, sweets, tooth paste, or brushing. To give some background all teeth have pores. These pores are not on the white enamel that we smile with, rather they are right at the border of the tooth and gum. As we abuse our teeth with brushing too hard, grinding our teeth, not flossing, or even not having cleanings often enough our gums can receed. That yellow line you see at the border of the gum and enamel is exposed root. Roots are porous. These pores will go all the way down to the nerve of the tooth. So if something covers these pores, like gum tissue, enamel or calicium (as it should) the tooth is NOT sensitive. If an acidic diet (any drink having Citric Acid), brushing too hard, grinding our teeth, brushing with too strong of a toothpaste (for your mouth) can cause the tooth to be cold sensitive. Cold sensitive to: water, foods, ice, or the COLD New York air. There is a simple solution: cover the pores. This can be done by your dentist by multiple products, or by you at home with Sensodyne ProNamel toothpaste. The paste with Potassium Nitrate "quiets" the nerve of the tooth and soon via Calcium, Fluoride and saliva repair the pores get plugged up. A more "quiet" tooth means a more comfortable tooth. That being said on a tooth that is very sensitive, after brushing and flossing, one could rub a bit of the paste on that sensitive tooth (right at the level of the gum) and let it sit overnight.
Of course more can be wrong with the tooth, the sensitivity could be from a dying nerve and need a root canal, it could be from grinding your teeth, it could be from a crack in the tooth or a cavity, but this is a good start. I have to of course end with the comment "you should seek the advice of your dentist if symptoms persist for more than 2 weeks". That is just good advice no matter who is interviewing you. :)
There is some good information to also review on the Sensodyne website.
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