25% More Free Dental Defense System Xylitol and Aloe Spry: A Healthier Way to Care for Teeth and Gums Spry seeks out the greatest, most natural ways to improve oral health. That’s why Spry Toothpaste features xylitol and cranberry extract. Both improve oral health by inhibiting bacteria from adhering to teeth and gums. Spry Toothpaste is part of the Spry Dental Defense System. All Spry products contain xylitol, which promotes greater oral health. Indication: Aids in the prevention of dental cavities.