It may surprise some to learn that baking soda is actually the least abrasive material for polishing and cleaning teeth.* That's why it's always been considered such a healthy choice in oral care. By dissolving into fine particles, baking soda gets into areas deep between teeth and along the gum line that other toothpastes can't reach. It also penetrates into the tiny crevices in tooth enamel to dissolve intrinsic stains. Baking soda in toothpaste not only has ample scientific support, it has a proven track record. As the maker of ARM & HAMMER™ toothpaste, we've been pro-baking soda for over 160 years. Today, dental professionals are realizing that baking soda remains a near-perfect ingredient for toothpaste because of its biological compatability, ubiquitous nature and especially its low abrasivity.1
* Comparison based upon the RDA of baking soda versus the most commonly used abrasive cleaning agents in toothpastes.
1. Barnes CM. An Evidenced-Based Review of Sodium Bicarbonate as a Dentifrice Agent. Compend Contin Educ Dent. 1999;6(3):3-11.