Arm & Hammer Sensitive Pro Repair Sensitive Teeth Toothpaste With Liquid Calcium is the only sensitive toothpaste that fixes the cause of sensitivity. Its patented Liquid Calcium technology works by sealing teeth and protecting exposed nerves, filling in the tiny crevices to restore the enamel surface and providing lasting pain relief for up to 16 weeks. This incredible baking soda formula gives you a truly deep clean whilst leaving teeth less sensitive, smoother and whiter. Toothpaste contains mild abrasive additives that combat microorganisms and fight plaque. When you brush, the abrasives in toothpaste dislodge food particles and microorganisms more effectively than if you simply brush your teeth with water. Calcium builds and strengthens the enamel, preventing erosion and decay. Calcium play a key role in keeping your teeth from becoming soft and yucky, which makes it easy for cavities to form. Baking soda is good for teeth whitening because it is a very mild abrasive, which helps remove stains from the surface of your teeth. In addition, baking soda is alkaline and salty, which helps lighten acid-based food stains – such as those from coffee, tea, and red wine – on teeth. Toothpastes containing baking soda have been shown to have antibacterial properties, which can help protect your teeth from decay. This toothpaste gives minty fresh breath.