Icy Blast Whitening gel by Colgate is among the most abrasive toothpastes, according to Atlanta Dental Spa. Dentists measure toothpaste harshness on a scale of zero to 250. Colgate's Icy Blast and its 2-in-1 Tartar Control/Whitening are rated 200, classifying them as potentially harmful substances for tooth enamel.
The U.S. Food and Drug Administration recommends a limit of 200 in abrasivity, while the American Dental Association places the upper limit at 250. For optimum safety, Atlanta Dental Spa recommends choosing toothpastes that have an abrasivity rating of 70 or less. Toothpaste brands that include baking soda as the main ingredient, such as Arm & Hammer Tooth Powder and Arms & Hammer Dental Care Sensitive, generally fall into this category with ratings of 08 and 48, respectively. Other toothpastes that have a mild abrasive rating include Rembrandt Original, with a rating of 53; Elmex Sensitive Plus, rated 30; and Tom's of Maine Sensitive, with a 40 rating.