When used regularly, builds increasing protection against painful sensitivity of the teeth to cold, heat, acids, sweets or contact. Aids in the prevention of cavities. With regular brushing: Unique formula polishes and whitens teeth by gently removing surface stains. Fights cavities, removes plaque, freshens breath. Builds increasing protection against painful sensitivity. Soothes the nerves in your teeth where dentin is exposed. For healthy teeth, brush twice a day, floss daily and visit your dentist regularly.