Trident Xtra Care delivers superior strengthening power versus regular sugar-free gum. After eating, plaque acids can wreak havoc on tooth enamel. and that can spell trouble with a capital C-A-V-I-T-Y. But when you chew Trident Xtra Care®, the ingredient, Recaldent, a unique form of calcium, is absorbed right into the tooth, strengthening areas attacked by plaque acids. The result is tooth enamel that’s harder and less vulnerable to future damage.