ARM & HAMMER Sensitive Teeth & Gums Toothpaste 4.5 oz (Pack of 4) - ARM & HAMMER Sensitive Teeth & Gums Toothpaste delivers powerful clean and gentle whitening, even for the most sensitive teeth. Provides maximum relief from tooth and nerve sensitivity without a prescription, and its low-abrasion baking soda formula gently whitens without causing sensitivity or damaging enamel. Baking soda also neutralizes acids that weaken and erode enamel. This toothpaste also helps keep your gums healthy and prevents tartar buildup on your teeth. Plus, it contains fluoride to protect against cavities and strengthen enamel.