An innovative gel that forms a layer over teeth and then recruits calcium and phosphate ions from saliva to build new enamel has the potential to change dental treatment. To date, we don't have any way to regenerate the tough outer layer of enamel on our teeth as it erodes with age.
Body Armors… Wait how do you intend on taking the teeth armor off?
Coke and Skittles, duh.
Why would you want to?