If you are experiencing more than a mild sensitivity to temperature extremes or sweets and we have ruled out pulpitis (inflamed tooth pulp), tooth decay (caries), infection, or gum disease as a cause, we use desensitizing medication to seal the microscopic pores of exposed root surfaces. We dispense desensitizing medication from a small tub and apply the agent to sensitive teeth with a single use fine brush. This process seals the exposed microscopic pores in the dentin layer of teeth that cause sensitivity. We also use desensitizing agents frequently on freshly cut dentin during restorative dental procedures (e.g. fillings, crowns) before the restoration is placed on the tooth to help prevent post-operative tooth sensitivity.