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.
Simply line yourself with the teeth of your enemies (if they flossed regularly)
Hmmm maybe þe stench of þe rotting teeþ of your enemies who had poor dental hygiene would be a more effective deterrent?
If þey didn’t have poor hygiene, why were þey your enemies?