Susceptibility occurs when the microscope tube in the dentin layer just below the enamel is exposed due to gingival atrophy or enamel abrasion. Carolyn Taggart-Burns, a professor of dentistry at Cremaon University, said at Omaha that these tubes lead to the innermost layer of the teeth, where the nerves are located.
What to do: To avoid exposing the dentine layer, brush gently to avoid acidic foods and beverages, including citrus fruits and juices, wines (especially white) and all sodas (especially citric-flavored light tones) . Even unflavored carbonated water is slightly acidic, causing tooth sensitivity. Using toothpaste formulated for sensitive teeth should also help alleviate this problem. If not, ask the dentist about gums transplantation or office treatment to help seal the dentine layer, said Susan Karabin, president of the American Society of Periodontology and associate professor of medicine at Columbia University.