
Could you imagine brushing your teeth with talcum powder? The ancient Romans used a variety of materials as toothpaste, including rusted iron flakes and powder made from coral plants. Nowadays, we rely on our toothpaste and tooth whitening products to …

When many people hear the adjective “cosmetic,” they may think that it refers to the superficial aspects of an item, that don’t really matter or affect performance. Cosmetic damage on a car, for instance, is typically something you can go …


