Sodas. Sweets. Cake. These tempting treats are hard for adults to avoid ? but they can be even harder on your teeth. As a matter of fact, two out of three adults risk losing at least one permanent tooth due to decay. 1 Did you know? Adults who use ACT? Anticavity fluoride rinses like ACT? Restoring? can reduce cavities up to 70% more than brushing with a fluoride toothpaste alone.