Desensitizing: Naturally-derived potassium helps in desensitizing dental nerves and relieves tingling sensation and pain associated with sensitive teeth. Dental tubules occlusion: The natural ingredients in the toothpaste help form a protective layer on the tooth enamel and plug exposed dentinal tubules. Strengthens gums: HiOra-K Toothpaste contains natural astringents that help tighten gums and prevent them from receding. This helps gums fit closely around teeth and prevent enamel erosion, which is the primary cause of sensitive teeth.