Often when gums recede, dentin (soft layer of the tooth covered by enamel or gum tissue) is exposed. Dentin contains microscopic pores (tubules) that, when exposed and open can lead to a “sharp” and/or “shooting” sensitivity pain. Acidic foods and beverages (candy, coffee, tea, wine), hot and cold, brushing and scaling (cleanings) can excite the tooth nerve and trigger sensitivity.
Some patients may need to use in-office and at-home dental products containing potassium nitrate (blocks pain signal) and certain fluorides (protects the tubules). Products marked as “whitening”, “tartar control” and/or “baking soda” may need to be avoided.