If your favorite mug or cup is showing signs of your coffee obsession, these simple tricks will make it look like new.

She says tooth stains are most often caused by consuming pigmented foods and drinks like coffee, tea ... purposes,” Dr. Duangthip says. “Mild fluorosis may be improved with teeth whitening ...

Overexposure to fluoride from drinking water or toothpaste can also lead to a condition called dental fluorosis ... drinks that are known to stain teeth, such as coffee, tea, wine, and cola.