Why does tooth sensitivity occur?Pain an discomfort are caused when stimuli from hot and cold reach nerve endings through open dentinal tubules, or through gums that expose the neck of the tooth.The remedy: Durban's SensitiveDurban's Sensitive was specifically formulated to fight tooth sensitivity and gum problems. Hydroxylapatite reminalizes enamel, repairing open dentinal tubules. Furthermore, Allantoin soothes and strengthens gums. Regularly using Durban's Sensitive guarantees long-lasting protection for teeth and gums. Its pleasant flavor ensures lasting freshness in the mouth.